Official wi-fi dongle extremely unstable in recent kernels.

[ali1234]

To reproduce:

1. Use a model A+ or Zero, official power supply, official wi-fi dongle connected without hub, and a brand new SanDisk 8GB uSD card that definitely isn't fake and definitely doesn't have any errors.
2. Write a pristine copy of 2015-11-21-raspbian-jessie-lite.img to the uSD card.
3. Boot up, log in over serial, and configure wpa-supplicant.conf to connect to a network.
4. Ping the Pi from another machine on the network.
5. Touch ground anywhere on the Pi, but especially the shielding of the USB port.

Result: endless kernel oops freeze the system.

This is a regression which cannot be reproduced with wheezy on the exact same hardware. Sometimes wth Jessie, merely putting your hand close to the Pi can cause the crash. Using a foot-long USB extension cable can cause the crash without even getting close. The crash happens with both the official wi-fi dongles that I own. It does not happen with any other USB devices (including other makes of wi-fi dongle), and switching the power supply does not make any difference. I tested on both an A+ and a Zero, other models may be affected.

Therefore I suspect that this problem involves an unhandled error on USB which should be silently ignored, but is instead crashing the whole system.

Kernel log:

Uncompressing Linux... done, booting the kernel.
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.1.13+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #826 PREEMPT Fri Nov 13 20:13:22 GMT 2015
[    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
[    0.000000] Machine model: Raspberry Pi Model A Plus Rev 1.1
[    0.000000] cma: Reserved 8 MiB at 0x0b800000
[    0.000000] Memory policy: Data cache writeback
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 48720
[    0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708.boardrev=0x12 bcm2708.serial=0xdd2f2419 smsc95xx.macaddr=B8:27:EB:2F:24:19 bcm2708_fb.fbswap=1 bcm2708.disk_led_gpio=47 bcm2708.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0xec00000 vc_mem.mem_size=0x10000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Memory: 176848K/196608K available (6137K kernel code, 489K rwdata, 1788K rodata, 352K init, 720K bss, 11568K reserved, 8192K cma-reserved)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xcc800000 - 0xff000000   ( 808 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xcc000000   ( 192 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc07c5630   (7926 kB)
[    0.000000]       .init : 0xc07c6000 - 0xc081e000   ( 352 kB)
[    0.000000]       .data : 0xc081e000 - 0xc08987e4   ( 490 kB)
[    0.000000]        .bss : 0xc08987e4 - 0xc094c980   ( 721 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000]  Additional per-CPU info printed with stalls.
[    0.000000] NR_IRQS:522
[    0.000000] clocksource stc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000014] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000056] Switching to timer-based delay loop, resolution 1000ns
[    0.000339] Console: colour dummy device 80x30
[    0.001753] console [tty1] enabled
[    0.001816] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)
[    0.001918] pid_max: default: 32768 minimum: 301
[    0.002275] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.002357] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.003441] Initializing cgroup subsys blkio
[    0.003539] Initializing cgroup subsys memory
[    0.003616] Initializing cgroup subsys devices
[    0.003685] Initializing cgroup subsys freezer
[    0.003754] Initializing cgroup subsys net_cls
[    0.003879] CPU: Testing write buffer coherency: ok
[    0.004011] ftrace: allocating 19796 entries in 59 pages
[    0.111328] Setting up static identity map for 0x81c0 - 0x81f8
[    0.114165] devtmpfs: initialized
[    0.124750] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
[    0.125222] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.127227] pinctrl core: initialized pinctrl subsystem
[    0.128146] NET: Registered protocol family 16
[    0.133724] DMA: preallocated 4096 KiB pool for atomic coherent allocations
[    0.135294] bcm2708.uart_clock = 3000000
[    0.140171] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[    0.140258] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.140451] Serial: AMBA PL011 UART driver
[    0.140760] 20201000.uart: ttyAMA0 at MMIO 0x20201000 (irq = 83, base_baud = 0) is a PL011 rev2
[    0.529500] console [ttyAMA0] enabled
[    0.533912] bcm2835-mbox 2000b880.mailbox: mailbox enabled
[    0.602106] bcm2708-dmaengine 20007000.dma: DMA legacy API manager at f2007000, dmachans=0xf35
[    0.611009] bcm2708-dmaengine 20007000.dma: Initialized 7 DMA channels (+ 1 legacy)
[    0.619518] bcm2708-dmaengine 20007000.dma: Load BCM2835 DMA engine driver
[    0.626512] bcm2708-dmaengine 20007000.dma: dma_debug:0
[    0.632649] SCSI subsystem initialized
[    0.636862] usbcore: registered new interface driver usbfs
[    0.642518] usbcore: registered new interface driver hub
[    0.648122] usbcore: registered new device driver usb
[    0.654166] raspberrypi-firmware soc:firmware: Attached to firmware from 2015-11-18 15:43
[    0.690002] Switched to clocksource stc
[    0.741517] FS-Cache: Loaded
[    0.744837] CacheFiles: Loaded
[    0.764167] NET: Registered protocol family 2
[    0.770162] TCP established hash table entries: 2048 (order: 1, 8192 bytes)
[    0.777239] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[    0.783894] TCP: Hash tables configured (established 2048 bind 2048)
[    0.790452] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.796355] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.803087] NET: Registered protocol family 1
[    0.808114] RPC: Registered named UNIX socket transport module.
[    0.814235] RPC: Registered udp transport module.
[    0.818981] RPC: Registered tcp transport module.
[    0.823760] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.831611] hw perfevents: enabled with armv6_1176 PMU driver, 3 counters available
[    0.840963] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.863444] VFS: Disk quotas dquot_6.6.0
[    0.867836] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.877559] FS-Cache: Netfs 'nfs' registered for caching
[    0.884644] NFS: Registering the id_resolver key type
[    0.889852] Key type id_resolver registered
[    0.894222] Key type id_legacy registered
[    0.902312] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[    0.910363] io scheduler noop registered
[    0.914365] io scheduler deadline registered (default)
[    0.919917] io scheduler cfq registered
[    0.926420] BCM2708FB: allocated DMA memory 4bc00000
[    0.931781] BCM2708FB: allocated DMA channel 0 @ f2007000
[    0.942478] Console: switching to colour frame buffer device 82x26
[    0.953866] Serial: 8250/16550 driver, 0 ports, IRQ sharing disabled
[    0.963741] vc-cma: Videocore CMA driver
[    0.969447] vc-cma: vc_cma_base      = 0x00000000
[    0.975999] vc-cma: vc_cma_size      = 0x00000000 (0 MiB)
[    0.983167] vc-cma: vc_cma_initial   = 0x00000000 (0 MiB)
[    0.990624] vc-mem: phys_addr:0x00000000 mem_base=0x0ec00000 mem_size:0x10000000(256 MiB)
[    1.021920] brd: module loaded
[    1.035979] loop: module loaded
[    1.042041] vchiq: vchiq_init_state: slot_zero = 0xcbc80000, is_master = 0
[    1.052776] Loading iSCSI transport class v2.0-870.
[    1.060953] usbcore: registered new interface driver smsc95xx
[    1.068483] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    1.276271] Core Release: 2.80a
[    1.281082] Setting default values for core params
[    1.287431] Finished setting default values for core params
[    1.495004] Using Buffer DMA mode
[    1.499908] Periodic Transfer Interrupt Enhancement - disabled
[    1.507365] Multiprocessor Interrupt Enhancement - disabled
[    1.514610] OTG VER PARAM: 0, OTG VER FLAG: 0
[    1.520613] Dedicated Tx FIFOs mode
[    1.526133] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xcbc14000 dma = 0x4bc14000 len=9024
[    1.539357] FIQ FSM acceleration enabled for :
[    1.539357] Non-periodic Split Transactions
[    1.539357] Periodic Split Transactions
[    1.539357] High-Speed Isochronous Endpoints
[    1.562676] WARN::hcd_init_fiq:412: FIQ on core 0 at 0xc0424a48
[    1.570271] WARN::hcd_init_fiq:413: FIQ ASM at 0xc0424d20 length 36
[    1.578196] WARN::hcd_init_fiq:438: MPHI regs_base at 0xcc896000
[    1.585928] dwc_otg 20980000.usb: DWC OTG Controller
[    1.592621] dwc_otg 20980000.usb: new USB bus registered, assigned bus number 1
[    1.601684] dwc_otg 20980000.usb: irq 32, io mem 0x00000000
[    1.608902] Init: Port Power? op_state=1
[    1.614433] Init: Power Port (0)
[    1.619609] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.628099] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.636979] usb usb1: Product: DWC OTG Controller
[    1.643318] usb usb1: Manufacturer: Linux 4.1.13+ dwc_otg_hcd
[    1.650689] usb usb1: SerialNumber: 20980000.usb
[    1.657943] hub 1-0:1.0: USB hub found
[    1.663546] hub 1-0:1.0: 1 port detected
[    1.670464] usbcore: registered new interface driver usb-storage
[    1.678484] mousedev: PS/2 mouse device common for all mice
[    1.686803] bcm2835-cpufreq: min=700000 max=700000
[    1.693769] sdhci: Secure Digital Host Controller Interface driver
[    1.701684] sdhci: Copyright(c) Pierre Ossman
[    1.708286] mmc-bcm2835 20300000.mmc: mmc_debug:0 mmc_debug2:0
[    1.715834] mmc-bcm2835 20300000.mmc: DMA channels allocated
[    1.760643] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.768686] ledtrig-cpu: registered to indicate activity on CPUs
[    1.779002] hidraw: raw HID events driver (C) Jiri Kosina
[    1.790951] usbcore: registered new interface driver usbhid
[    1.798155] usbhid: USB HID core driver
[    1.806157] Initializing XFRM netlink socket
[    1.814291] NET: Registered protocol family 17
[    1.822706] Key type dns_resolver registered
[    1.836266] registered taskstats version 1
[    1.842424] vc-sm: Videocore shared memory driver
[    1.848679] [vc_sm_connected_init]: start
[    1.855335] [vc_sm_connected_init]: end - returning 0
[    1.862391] Indeed it is in host mode hprt0 = 00021501
[    1.876672] Waiting for root device /dev/mmcblk0p2...
[    1.883626] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.913141] mmc0: new high speed SDHC card at address aaaa
[    1.930762] mmcblk0: mmc0:aaaa SL08G 7.40 GiB 
[    1.951260]  mmcblk0: p1 p2
[    2.027193] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.038917] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    2.059850] devtmpfs: mounted
[    2.065917] Freeing unused kernel memory: 352K (c07c6000 - c081e000)
[    2.080139] usb 1-1: new high-speed USB device number 2 using dwc_otg
[    2.089345] Indeed it is in host mode hprt0 = 00001101
[    2.303629] usb 1-1: New USB device found, idVendor=0a5c, idProduct=bd1e
[    2.313287] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.323499] usb 1-1: Product: Remote Download Wireless Adapter
[    2.332925] usb 1-1: Manufacturer: Broadcom
[    2.339067] usb 1-1: SerialNumber: 000000000001
[    2.420914] random: systemd urandom read with 48 bits of entropy available
[    2.438029] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR)
[    2.456422] systemd[1]: Detected architecture 'arm'.
[    2.592931] NET: Registered protocol family 10
[    2.601717] systemd[1]: Inserted module 'ipv6'
[    2.611193] systemd[1]: Set hostname to <raspberrypi>.
[    2.836491] uart-pl011 20201000.uart: no DMA platform data
[    3.015018] random: nonblocking pool is initialized
[    3.376237] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[    3.402694] systemd[1]: Expecting device dev-ttyAMA0.device...
[    3.413935] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[    3.426069] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    3.437951] systemd[1]: Starting Remote File Systems (Pre).
[    3.448516] systemd[1]: Reached target Remote File Systems (Pre).
[    3.457247] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[    3.473996] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    3.488044] systemd[1]: Starting Encrypted Volumes.
[    3.498316] systemd[1]: Reached target Encrypted Volumes.
[    3.506364] systemd[1]: Starting Swap.
[    3.515323] systemd[1]: Reached target Swap.
[    3.522061] systemd[1]: Expecting device dev-mmcblk0p1.device...
[    3.533138] systemd[1]: Starting Root Slice.
[    3.542525] systemd[1]: Created slice Root Slice.
[    3.549349] systemd[1]: Starting User and Session Slice.
[    3.559824] systemd[1]: Created slice User and Session Slice.
[    3.567878] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[    3.579664] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    3.588922] systemd[1]: Starting Delayed Shutdown Socket.
[    3.599176] systemd[1]: Listening on Delayed Shutdown Socket.
[    3.607114] systemd[1]: Starting Journal Socket (/dev/log).
[    3.617597] systemd[1]: Listening on Journal Socket (/dev/log).
[    3.625800] systemd[1]: Starting udev Control Socket.
[    3.635782] systemd[1]: Listening on udev Control Socket.
[    3.643497] systemd[1]: Starting udev Kernel Socket.
[    3.653271] systemd[1]: Listening on udev Kernel Socket.
[    3.660871] systemd[1]: Starting Journal Socket.
[    3.670480] systemd[1]: Listening on Journal Socket.
[    3.677668] systemd[1]: Starting System Slice.
[    3.687078] systemd[1]: Created slice System Slice.
[    3.694320] systemd[1]: Starting File System Check on Root Device...
[    3.710355] systemd[1]: Starting system-systemd\x2dfsck.slice.
[    3.730406] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[    3.738853] systemd[1]: Starting system-getty.slice.
[    3.751257] systemd[1]: Created slice system-getty.slice.
[    3.770576] systemd[1]: Starting system-serial\x2dgetty.slice.
[    3.784415] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    3.795730] systemd[1]: Starting Increase datagram queue length...
[    3.814530] systemd[1]: Starting Restore / save the current clock...
[    3.856311] systemd[1]: Starting udev Coldplug all Devices...
[    3.893675] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[    3.999846] systemd[1]: Starting Load Kernel Modules...
[    4.120484] systemd[1]: Started Set Up Additional Binary Formats.
[    4.160888] systemd[1]: Mounted Huge Pages File System.
[    4.169126] systemd[1]: Mounting Debug File System...
[    4.258446] systemd[1]: Mounting POSIX Message Queue File System...
[    4.297172] systemd[1]: Starting Slices.
[    4.350441] systemd[1]: Reached target Slices.
[    4.375696] systemd[1]: Mounted POSIX Message Queue File System.
[    4.399464] systemd[1]: Mounted Debug File System.
[    4.413199] systemd[1]: Started File System Check on Root Device.
[    4.445804] systemd[1]: Started Increase datagram queue length.
[    4.459865] systemd[1]: Started Restore / save the current clock.
[    4.491228] systemd[1]: Started Create list of required static device nodes for the current kernel.
[    4.530695] systemd[1]: Started Load Kernel Modules.
[    4.570456] systemd[1]: Time has been changed
[    4.741242] systemd[1]: Started udev Coldplug all Devices.
[    4.971626] systemd[1]: Starting Apply Kernel Variables...
[    5.000822] systemd[1]: Mounting Configuration File System...
[    5.028289] systemd[1]: Mounted FUSE Control File System.

Raspbian GNU/Linux 8 raspberrypi ttyAMA0

raspberrypi login: [   29.516354] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[   29.527472] pgd = c0004000
[   29.534132] [00000000] *pgd=00000000
[   29.539287] Internal error: Oops: 5 [#1] PREEMPT ARM
[   29.545662] Modules linked in: brcmfmac brcmutil cfg80211 rfkill snd_bcm2835 bcm2835_gpiomem snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   29.561425] CPU: 0 PID: 155 Comm: kworker/0:3 Not tainted 4.1.13+ #826
[   29.569509] Hardware name: BCM2708
[   29.574651] Workqueue: events brcmf_fweh_event_worker [brcmfmac]
[   29.582342] task: cb336040 ti: c90ec000 task.ti: c90ec000
[   29.589790] PC is at cfg80211_get_bss_channel+0x104/0x140 [cfg80211]
[   29.597866] LR is at 0x3
[   29.602054] pc : [<bf0ec4c0>]    lr : [<00000003>]    psr: 60000013
[   29.602054] sp : c90edcd8  ip : cb38f096  fp : c90edcf4
[   29.617002] r10: 00000064  r9 : 00000000  r8 : 00000000
[   29.623977] r7 : c9080160  r6 : 0000015f  r5 : 0000000a  r4 : 0000014d
[   29.632262] r3 : 00000000  r2 : 0000015f  r1 : cb38f084  r0 : 0000000d
[   29.640516] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[   29.649615] Control: 00c5387d  Table: 0a4d4008  DAC: 00000015
[   29.657169] Process kworker/0:3 (pid: 155, stack limit = 0xc90ec188)
[   29.665310] Stack: (0xc90edcd8 to 0xc90ee000)
[   29.671405] dcc0:                                                       c9080160 0000015f
[   29.683057] dce0: 00000411 cb38f00c c90edd7c c90edcf8 bf0ed324 bf0ec3c8 00000000 00000411
[   29.694827] dd00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   29.706626] dd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   29.718534] dd40: 00000000 00000000 00000000 00000000 cb38f000 00000000 00000000 c9080160
[   29.730559] dd60: cb38f084 00000064 00000411 cb38f00c c90edde4 c90edd80 bf196738 bf0ed2bc
[   29.742728] dd80: cb38f00c c9080160 00000000 00000000 00000411 00000064 cb38f084 0000015f
[   29.755057] dda0: fffff060 000000d0 cb38dc00 bf19ea50 c90edde4 c90eddc0 bf19ea50 cb38f004
[   29.767561] ddc0: cb38f000 cb38dc00 00000000 c9080160 c90b5234 c90b5000 c90ede0c c90edde8
[   29.780177] dde0: bf197294 bf19667c c90ede90 c9080320 c90edea8 c9080320 cb38d800 cb38dc00
[   29.792897] de00: c90ede5c c90ede10 bf197524 bf19722c 00000000 0f266202 c90ede5c c90ede28
[   29.805797] de20: c004eb04 c0059294 c0082534 c001f9c4 ffffffff 00000013 ca760000 00000000
[   29.818754] de40: 00000000 00000000 00000001 ca76208c c90ede74 c90ede60 bf19ef9c bf197478
[   29.831707] de60: c91a0960 c90ec000 c90edeec c90ede78 bf19f1b8 bf19ef60 c90edeac c90ede88
[   29.844669] de80: c00426dc ca760000 ca76209c ca76208c 00000002 00000013 00000000 00000001
[   29.857641] dea0: 00000000 00000000 167f4e20 6c77a557 00000030 00000000 00000000 00000000
[   29.870606] dec0: ca45ed80 ca76208c ca6409c0 c082a6d0 cb632d00 00000000 00000000 c082a6d0
[   29.883553] dee0: c90edf2c c90edef0 c003ba38 bf19f004 c90ec000 c082a6d0 ca6409c0 ca6409d8
[   29.896517] df00: 00000008 c082a6d0 c90ec000 c082a6e0 ca6409c0 ca6409d8 00000008 c082a6d0
[   29.909482] df20: c90edf64 c90edf30 c003bf00 c003b908 c003bd88 00000000 00000000 c9067e40
[   29.922453] df40: 00000000 ca6409c0 c003bd88 00000000 00000000 00000000 c90edfac c90edf68
[   29.935412] df60: c0041714 c003bd94 c90edf94 00000000 c0048b00 ca6409c0 00000000 c90edf7c
[   29.948371] df80: c90edf7c 00000000 c90edf88 c90edf88 c9067e40 c0041634 00000000 00000000
[   29.961331] dfa0: 00000000 c90edfb0 c000f7d8 c0041640 00000000 00000000 00000000 00000000
[   29.974295] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   29.987251] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   30.000734] [<bf0ec4c0>] (cfg80211_get_bss_channel [cfg80211]) from [<bf0ed324>] (cfg80211_inform_bss_width+0x74/0x258 [cfg80211])
[   30.017782] [<bf0ed324>] (cfg80211_inform_bss_width [cfg80211]) from [<bf196738>] (brcmf_inform_single_bss+0xc8/0x140 [brcmfmac])
[   30.034512] [<bf196738>] (brcmf_inform_single_bss [brcmfmac]) from [<bf197294>] (brcmf_update_bss_info.part.8+0x74/0x12c [brcmfmac])
[   30.051443] [<bf197294>] (brcmf_update_bss_info.part.8 [brcmfmac]) from [<bf197524>] (brcmf_notify_roaming_status+0xb8/0x1c0 [brcmfmac])
[   30.068722] [<bf197524>] (brcmf_notify_roaming_status [brcmfmac]) from [<bf19ef9c>] (brcmf_fweh_call_event_handler+0x48/0xa4 [brcmfmac])
[   30.086001] [<bf19ef9c>] (brcmf_fweh_call_event_handler [brcmfmac]) from [<bf19f1b8>] (brcmf_fweh_event_worker+0x1c0/0x3bc [brcmfmac])
[   30.102993] [<bf19f1b8>] (brcmf_fweh_event_worker [brcmfmac]) from [<c003ba38>] (process_one_work+0x13c/0x48c)
[   30.117719] [<c003ba38>] (process_one_work) from [<c003bf00>] (worker_thread+0x178/0x538)
[   30.130568] [<c003bf00>] (worker_thread) from [<c0041714>] (kthread+0xe0/0xfc)
[   30.140234] [<c0041714>] (kthread) from [<c000f7d8>] (ret_from_fork+0x14/0x3c)
[   30.149825] Code: 0affffdd e3500001 05dc0002 1affffda (e5931000) 
[   30.180202] ---[ end trace 0d125a043c8709d8 ]---
[   30.187435] Unable to handle kernel paging request at virtual address fffffff0
[   30.196988] pgd = c0004000
[   30.201910] [fffffff0] *pgd=0b7fa821, *pte=00000000, *ppte=00000000
[   30.210489] Internal error: Oops: 17 [#2] PREEMPT ARM
[   30.217737] Modules linked in: brcmfmac brcmutil cfg80211 rfkill snd_bcm2835 bcm2835_gpiomem snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   30.234918] CPU: 0 PID: 155 Comm: kworker/0:3 Tainted: G      D         4.1.13+ #826
[   30.246903] Hardware name: BCM2708
[   30.252403] task: cb336040 ti: c90ec000 task.ti: c90ec000
[   30.259905] PC is at kthread_data+0x18/0x20
[   30.266127] LR is at wq_worker_sleeping+0x1c/0xcc
[   30.272819] pc : [<c0041d10>]    lr : [<c003ce08>]    psr: 20000093
[   30.272819] sp : c90eda08  ip : c90eda18  fp : c90eda14
[   30.288139] r10: c082c138  r9 : 00000020  r8 : cb336040
[   30.295220] r7 : c90eda98  r6 : cb336328  r5 : cb0c0000  r4 : 00000000
[   30.303601] r3 : 00000000  r2 : 00000800  r1 : 00000000  r0 : cb336040
[   30.311942] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   30.321010] Control: 00c5387d  Table: 0912c008  DAC: 00000015
[   30.328569] Process kworker/0:3 (pid: 155, stack limit = 0xc90ec188)
[   30.336757] Stack: (0xc90eda08 to 0xc90ee000)
[   30.342914] da00:                   c90eda2c c90eda18 c003ce08 c0041d04 00000020 cb3363ac
[   30.354649] da20: c90eda6c c90eda30 c05892ac c003cdf8 00000000 00000000 c0592ee4 00000001
[   30.366450] da40: c90eda5c c90ec000 cb0c0000 cb336328 c90eda98 00000001 00000020 cb336040
[   30.378317] da60: c90eda84 c90eda70 c05894e8 c0588e38 0420806c c90ed794 c90edacc c90eda88
[   30.390294] da80: c00267f8 c05894a8 00000000 00000001 c90edabc c08989a4 c90eda98 c90eda98
[   30.402454] daa0: 0000000b c08989a4 c08255a8 60000013 0000000b 00000001 bf0ec4c2 60000013
[   30.414799] dac0: c90edb4c c90edad0 c0013ccc c0026140 c90ec188 0000000b c0060248 00000000
[   30.427309] dae0: 00000008 00000000 300edb1c 66666661 20646466 30353365 31303030 64353020
[   30.440015] db00: 30303063 61312032 66666666 28206164 33393565 30303031 c0002029 c05845b0
[   30.452798] db20: c06fdb30 00000000 00000005 00000000 c90edc90 cb336040 00000000 00000064
[   30.465675] db40: c90edb64 c90edb50 c0583ccc c0013b54 c90edc90 00000000 c90edbbc c90edb68
[   30.478644] db60: c058de70 c0583c74 c90edb9c c90edb78 c0061140 c0027ff0 c90edbb0 c0048b04
[   30.491642] db80: 60000013 f200b200 c90edbe4 cb336040 c90edbac 00000005 c058dff8 00000000
[   30.504645] dba0: c08259c4 c90edc90 00000000 00000064 c90edbdc c90edbc0 c058e0a8 c058dc10
[   30.517635] dbc0: c0825974 00000005 c058dff8 00000000 c90edc8c c90edbe0 c0009250 c058e004
[   30.530643] dbe0: c90edbf8 c90edbf8 c0048b00 c0048b04 60000013 ffffffff ffffffff 00000000
[   30.543657] dc00: ca45ea80 000004e0 c08bb4c0 c90ec000 c90edc74 c08bb4c0 c90edc4c c90edc28
[   30.556670] dc20: c0070bec c00c471c c08bb4f8 c0070cc0 c90edc74 00000001 a0000013 ffff9704
[   30.569675] dc40: c90edc6c c90edc50 c0070cd4 c00c4e34 c05894e8 a0000013 a0000013 c90edc74
[   30.582654] dc60: c90edccc c90edc70 c058c3b8 bf0ec4c0 60000013 ffffffff c90edcc4 00000000
[   30.595651] dc80: c90edcf4 c90edc90 c058d4dc c0009218 0000000d cb38f084 0000015f 00000000
[   30.608655] dca0: 0000014d 0000000a 0000015f c9080160 00000000 00000000 00000064 c90edcf4
[   30.621659] dcc0: cb38f096 c90edcd8 00000003 bf0ec4c0 60000013 ffffffff c9080160 0000015f
[   30.634635] dce0: 00000411 cb38f00c c90edd7c c90edcf8 bf0ed324 bf0ec3c8 00000000 00000411
[   30.647620] dd00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   30.660620] dd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   30.673625] dd40: 00000000 00000000 00000000 00000000 cb38f000 00000000 00000000 c9080160
[   30.686620] dd60: cb38f084 00000064 00000411 cb38f00c c90edde4 c90edd80 bf196738 bf0ed2bc
[   30.699598] dd80: cb38f00c c9080160 00000000 00000000 00000411 00000064 cb38f084 0000015f
[   30.712588] dda0: fffff060 000000d0 cb38dc00 bf19ea50 c90edde4 c90eddc0 bf19ea50 cb38f004
[   30.725593] ddc0: cb38f000 cb38dc00 00000000 c9080160 c90b5234 c90b5000 c90ede0c c90edde8
[   30.738598] dde0: bf197294 bf19667c c90ede90 c9080320 c90edea8 c9080320 cb38d800 cb38dc00
[   30.751589] de00: c90ede5c c90ede10 bf197524 bf19722c 00000000 0f266202 c90ede5c c90ede28
[   30.764587] de20: c004eb04 c0059294 c0082534 c001f9c4 ffffffff 00000013 ca760000 00000000
[   30.777589] de40: 00000000 00000000 00000001 ca76208c c90ede74 c90ede60 bf19ef9c bf197478
[   30.790588] de60: c91a0960 c90ec000 c90edeec c90ede78 bf19f1b8 bf19ef60 c90edeac c90ede88
[   30.803579] de80: c00426dc ca760000 ca76209c ca76208c 00000002 00000013 00000000 00000001
[   30.816553] dea0: 00000000 00000000 167f4e20 6c77a557 00000030 00000000 00000000 00000000
[   30.829556] dec0: ca45ed80 ca76208c ca6409c0 c082a6d0 cb632d00 00000000 00000000 c082a6d0
[   30.842555] dee0: c90edf2c c90edef0 c003ba38 bf19f004 c90ec000 c082a6d0 ca6409c0 ca6409d8
[   30.855534] df00: 00000008 c082a6d0 c90ec000 c082a6e0 ca6409c0 ca6409d8 00000008 c082a6d0
[   30.868496] df20: c90edf64 c90edf30 c003bf00 c003b908 c003bd88 00000000 00000000 c9067e40
[   30.881464] df40: 00000000 ca6409c0 c003bd88 00000000 00000000 00000000 c90edfac c90edf68
[   30.894438] df60: c0041714 c003bd94 c90edf94 00000000 c0048b00 ca6409c0 00000000 c90edf7c
[   30.907408] df80: c90edf7c 00000001 c90edf88 c90edf88 c9067e40 c0041634 00000000 00000000
[   30.920370] dfa0: 00000000 c90edfb0 c000f7d8 c0041640 00000000 00000000 00000000 00000000
[   30.933321] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   30.946310] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   30.959316] [<c0041d10>] (kthread_data) from [<c003ce08>] (wq_worker_sleeping+0x1c/0xcc)
[   30.972247] [<c003ce08>] (wq_worker_sleeping) from [<c05892ac>] (__schedule+0x480/0x670)
[   30.985131] [<c05892ac>] (__schedule) from [<c05894e8>] (schedule+0x4c/0xa4)
[   30.994665] [<c05894e8>] (schedule) from [<c00267f8>] (do_exit+0x6c4/0xa94)
[   31.004087] [<c00267f8>] (do_exit) from [<c0013ccc>] (die+0x184/0x374)
[   31.013036] [<c0013ccc>] (die) from [<c0583ccc>] (__do_kernel_fault.part.0+0x64/0x84)
[   31.025508] [<c0583ccc>] (__do_kernel_fault.part.0) from [<c058de70>] (do_page_fault+0x26c/0x3f4)
[   31.039024] [<c058de70>] (do_page_fault) from [<c058e0a8>] (do_translation_fault+0xb0/0xb8)
[   31.051976] [<c058e0a8>] (do_translation_fault) from [<c0009250>] (do_DataAbort+0x44/0xc4)
[   31.064831] [<c0009250>] (do_DataAbort) from [<c058d4dc>] (__dabt_svc+0x3c/0x60)
[   31.076770] Exception stack(0xc90edc90 to 0xc90edcd8)
[   31.084085] dc80:                                     0000000d cb38f084 0000015f 00000000
[   31.096655] dca0: 0000014d 0000000a 0000015f c9080160 00000000 00000000 00000064 c90edcf4
[   31.109185] dcc0: cb38f096 c90edcd8 00000003 bf0ec4c0 60000013 ffffffff
[   31.118470] [<c058d4dc>] (__dabt_svc) from [<bf0ec4c0>] (cfg80211_get_bss_channel+0x104/0x140 [cfg80211])
[   31.132931] [<bf0ec4c0>] (cfg80211_get_bss_channel [cfg80211]) from [<bf0ed324>] (cfg80211_inform_bss_width+0x74/0x258 [cfg80211])
[   31.149607] [<bf0ed324>] (cfg80211_inform_bss_width [cfg80211]) from [<bf196738>] (brcmf_inform_single_bss+0xc8/0x140 [brcmfmac])
[   31.166023] [<bf196738>] (brcmf_inform_single_bss [brcmfmac]) from [<bf197294>] (brcmf_update_bss_info.part.8+0x74/0x12c [brcmfmac])
[   31.182660] [<bf197294>] (brcmf_update_bss_info.part.8 [brcmfmac]) from [<bf197524>] (brcmf_notify_roaming_status+0xb8/0x1c0 [brcmfmac])
[   31.199666] [<bf197524>] (brcmf_notify_roaming_status [brcmfmac]) from [<bf19ef9c>] (brcmf_fweh_call_event_handler+0x48/0xa4 [brcmfmac])
[   31.216675] [<bf19ef9c>] (brcmf_fweh_call_event_handler [brcmfmac]) from [<bf19f1b8>] (brcmf_fweh_event_worker+0x1c0/0x3bc [brcmfmac])
[   31.233416] [<bf19f1b8>] (brcmf_fweh_event_worker [brcmfmac]) from [<c003ba38>] (process_one_work+0x13c/0x48c)
[   31.247986] [<c003ba38>] (process_one_work) from [<c003bf00>] (worker_thread+0x178/0x538)
[   31.260769] [<c003bf00>] (worker_thread) from [<c0041714>] (kthread+0xe0/0xfc)
[   31.270375] [<c0041714>] (kthread) from [<c000f7d8>] (ret_from_fork+0x14/0x3c)
[   31.279937] Code: e24cb004 e52de004 e8bd4000 e5903340 (e5130010) 
[   31.288355] ---[ end trace 0d125a043c8709d9 ]---
[   31.295218] Fixing recursive fault but reboot is needed!
[   31.302802] Unable to handle kernel paging request at virtual address fffffff0
[   31.312282] pgd = c0004000
[   31.317158] [fffffff0] *pgd=0b7fa821, *pte=00000000, *ppte=00000000
[   31.325680] Internal error: Oops: 17 [#3] PREEMPT ARM
[   31.332886] Modules linked in: brcmfmac brcmutil cfg80211 rfkill snd_bcm2835 bcm2835_gpiomem snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   31.349982] CPU: 0 PID: 155 Comm: kworker/0:3 Tainted: G      D         4.1.13+ #826
[   31.361909] Hardware name: BCM2708
[   31.367369] task: cb336040 ti: c90ec000 task.ti: c90ec000
[   31.374829] PC is at kthread_data+0x18/0x20
[   31.381007] LR is at wq_worker_sleeping+0x1c/0xcc
[   31.387660] pc : [<c0041d10>]    lr : [<c003ce08>]    psr: 20000193
[   31.387660] sp : c90ed758  ip : c90ed768  fp : c90ed764
[   31.402891] r10: c082c138  r9 : c0041d12  r8 : cb336040
[   31.409942] r7 : 0000000b  r6 : 60000193  r5 : c08255a8  r4 : 00000000
[   31.418286] r3 : 00000000  r2 : 00000400  r1 : 00000000  r0 : cb336040
[   31.426612] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   31.435645] Control: 00c5387d  Table: 0912c008  DAC: 00000015
[   31.443196] Process kworker/0:3 (pid: 155, stack limit = 0xc90ec188)
[   31.451376] Stack: (0xc90ed758 to 0xc90ee000)
[   31.457525] d740:                                                       c90ed77c c90ed768
[   31.469126] d760: c003ce08 c0041d04 00000020 cb3363ac c90ed7bc c90ed780 c05892ac c003cdf8
[   31.480774] d780: c0060248 c005fa9c c06be070 c90ed7cc c90ed7c4 c90ec000 c08255a8 60000193
[   31.492466] d7a0: 0000000b 00000001 c0041d12 cb336040 c90ed7d4 c90ed7c0 c05894e8 c0588e38
[   31.504265] d7c0: cb336040 0000000b c90ed81c c90ed7d8 c0026ae4 c05894a8 0000000b c082cb80
[   31.516237] d7e0: c90ed80c c08989a4 c08255a8 60000193 0000000b c08989a4 c08255a8 60000193
[   31.528404] d800: 0000000b 00000001 c0041d12 60000193 c90ed89c c90ed820 c0013ccc c0026140
[   31.540740] d820: c90ec188 0000000b c0060248 bf000000 00000008 00000000 650ed86c 62633432
[   31.553235] d840: 20343030 64323565 34303065 62386520 30303464 35652030 33333039 28203034
[   31.565836] d860: 33313565 30313030 c0002029 c05845b0 c06fdb30 fffffff0 00000017 00000000
[   31.578545] d880: c90ed9c0 cb336040 00000020 c082c138 c90ed8b4 c90ed8a0 c0583ccc c0013b54
[   31.591436] d8a0: c90ed9c0 00000000 c90ed90c c90ed8b8 c058de70 c0583c74 c05998b0 c01813a4
[   31.604397] d8c0: 00000000 cae9d3f8 c90ed8e8 c05998b0 c01a25b4 c083d748 cae9d490 60000013
[   31.617349] d8e0: c90ed914 00000017 c058dc04 fffffff0 c08259e4 c90ed9c0 00000020 c082c138
[   31.630313] d900: c90ed9bc c90ed910 c0009250 c058dc10 c006aa58 c006a784 c90ed934 c90ed928
[   31.643301] d920: c0152d50 c083d748 caf4ef60 60000013 c90ed964 c90ed940 c006a824 c00c4e34
[   31.656263] d940: caf4eee0 c00592d8 00000000 0001fbd0 c90ed97c c90ed960 c00592d8 c006757c
[   31.669215] d960: 00000000 0001fbd0 00000000 35c2dbca c90ed9b4 c90ed980 c004eb04 c0059294
[   31.682177] d980: c0082534 c001f9c4 ffffffff c004f868 00000001 c004f870 00000002 c0041d10
[   31.695148] d9a0: 20000093 ffffffff c90ed9f4 cb336040 c90eda14 c90ed9c0 c058d4dc c0009218
[   31.708118] d9c0: cb336040 00000000 00000800 00000000 00000000 cb0c0000 cb336328 c90eda98
[   31.721084] d9e0: cb336040 00000020 c082c138 c90eda14 c90eda18 c90eda08 c003ce08 c0041d10
[   31.734036] da00: 20000093 ffffffff c90eda2c c90eda18 c003ce08 c0041d04 00000020 cb3363ac
[   31.747002] da20: c90eda6c c90eda30 c05892ac c003cdf8 00000000 00000000 c0592ee4 00000001
[   31.759968] da40: c90eda5c c90ec000 cb0c0000 cb336328 c90eda98 00000001 00000020 cb336040
[   31.772935] da60: c90eda84 c90eda70 c05894e8 c0588e38 0420806c c90ed794 c90edacc c90eda88
[   31.785899] da80: c00267f8 c05894a8 00000000 00000001 c90edabc c08989a4 c90eda98 c90eda98
[   31.798859] daa0: 0000000b c08989a4 c08255a8 60000013 0000000b 00000001 bf0ec4c2 60000013
[   31.811831] dac0: c90edb4c c90edad0 c0013ccc c0026140 c90ec188 0000000b c0060248 00000000
[   31.824801] dae0: 00000008 00000000 300edb1c 66666661 20646466 30353365 31303030 64353020
[   31.837766] db00: 30303063 61312032 66666666 28206164 33393565 30303031 c0002029 c05845b0
[   31.850723] db20: c06fdb30 00000000 00000005 00000000 c90edc90 cb336040 00000000 00000064
[   31.863697] db40: c90edb64 c90edb50 c0583ccc c0013b54 c90edc90 00000000 c90edbbc c90edb68
[   31.876664] db60: c058de70 c0583c74 c90edb9c c90edb78 c0061140 c0027ff0 c90edbb0 c0048b04
[   31.889636] db80: 60000013 f200b200 c90edbe4 cb336040 c90edbac 00000005 c058dff8 00000000
[   31.902596] dba0: c08259c4 c90edc90 00000000 00000064 c90edbdc c90edbc0 c058e0a8 c058dc10
[   31.915564] dbc0: c0825974 00000005 c058dff8 00000000 c90edc8c c90edbe0 c0009250 c058e004
[   31.928536] dbe0: c90edbf8 c90edbf8 c0048b00 c0048b04 60000013 ffffffff ffffffff 00000000
[   31.941506] dc00: ca45ea80 000004e0 c08bb4c0 c90ec000 c90edc74 c08bb4c0 c90edc4c c90edc28
[   31.954475] dc20: c0070bec c00c471c c08bb4f8 c0070cc0 c90edc74 00000001 a0000013 ffff9704
[   31.967435] dc40: c90edc6c c90edc50 c0070cd4 c00c4e34 c05894e8 a0000013 a0000013 c90edc74
[   31.980401] dc60: c90edccc c90edc70 c058c3b8 bf0ec4c0 60000013 ffffffff c90edcc4 00000000
[   31.993373] dc80: c90edcf4 c90edc90 c058d4dc c0009218 0000000d cb38f084 0000015f 00000000
[   32.006348] dca0: 0000014d 0000000a 0000015f c9080160 00000000 00000000 00000064 c90edcf4
[   32.019298] dcc0: cb38f096 c90edcd8 00000003 bf0ec4c0 60000013 ffffffff c9080160 0000015f
[   32.032256] dce0: 00000411 cb38f00c c90edd7c c90edcf8 bf0ed324 bf0ec3c8 00000000 00000411
[   32.045216] dd00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   32.058174] dd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   32.071126] dd40: 00000000 00000000 00000000 00000000 cb38f000 00000000 00000000 c9080160
[   32.084080] dd60: cb38f084 00000064 00000411 cb38f00c c90edde4 c90edd80 bf196738 bf0ed2bc
[   32.097043] dd80: cb38f00c c9080160 00000000 00000000 00000411 00000064 cb38f084 0000015f
[   32.110019] dda0: fffff060 000000d0 cb38dc00 bf19ea50 c90edde4 c90eddc0 bf19ea50 cb38f004
[   32.122989] ddc0: cb38f000 cb38dc00 00000000 c9080160 c90b5234 c90b5000 c90ede0c c90edde8
[   32.135950] dde0: bf197294 bf19667c c90ede90 c9080320 c90edea8 c9080320 cb38d800 cb38dc00
[   32.148919] de00: c90ede5c c90ede10 bf197524 bf19722c 00000000 0f266202 c90ede5c c90ede28
[   32.161896] de20: c004eb04 c0059294 c0082534 c001f9c4 ffffffff 00000013 ca760000 00000000
[   32.174869] de40: 00000000 00000000 00000001 ca76208c c90ede74 c90ede60 bf19ef9c bf197478
[   32.187837] de60: c91a0960 c90ec000 c90edeec c90ede78 bf19f1b8 bf19ef60 c90edeac c90ede88
[   32.200788] de80: c00426dc ca760000 ca76209c ca76208c 00000002 00000013 00000000 00000001
[   32.213765] dea0: 00000000 00000000 167f4e20 6c77a557 00000030 00000000 00000000 00000000
[   32.226744] dec0: ca45ed80 ca76208c ca6409c0 c082a6d0 cb632d00 00000000 00000000 c082a6d0
[   32.239727] dee0: c90edf2c c90edef0 c003ba38 bf19f004 c90ec000 c082a6d0 ca6409c0 ca6409d8
[   32.252687] df00: 00000008 c082a6d0 c90ec000 c082a6e0 ca6409c0 ca6409d8 00000008 c082a6d0
[   32.265657] df20: c90edf64 c90edf30 c003bf00 c003b908 c003bd88 00000000 00000000 c9067e40
[   32.278627] df40: 00000000 ca6409c0 c003bd88 00000000 00000000 00000000 c90edfac c90edf68
[   32.291604] df60: c0041714 c003bd94 c90edf94 00000000 c0048b00 ca6409c0 00000000 c90edf7c
[   32.304571] df80: c90edf7c 00000001 c90edf88 c90edf88 c9067e40 c0041634 00000000 00000000
[   32.317525] dfa0: 00000000 c90edfb0 c000f7d8 c0041640 00000000 00000000 00000000 00000000
[   32.330493] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   32.343457] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   32.356456] [<c0041d10>] (kthread_data) from [<c003ce08>] (wq_worker_sleeping+0x1c/0xcc)
[   32.369359] [<c003ce08>] (wq_worker_sleeping) from [<c05892ac>] (__schedule+0x480/0x670)
[   32.382244] [<c05892ac>] (__schedule) from [<c05894e8>] (schedule+0x4c/0xa4)
[   32.391779] [<c05894e8>] (schedule) from [<c0026ae4>] (do_exit+0x9b0/0xa94)
[   32.401189] [<c0026ae4>] (do_exit) from [<c0013ccc>] (die+0x184/0x374)
[   32.410137] [<c0013ccc>] (die) from [<c0583ccc>] (__do_kernel_fault.part.0+0x64/0x84)
[   32.422596] [<c0583ccc>] (__do_kernel_fault.part.0) from [<c058de70>] (do_page_fault+0x26c/0x3f4)
[   32.436068] [<c058de70>] (do_page_fault) from [<c0009250>] (do_DataAbort+0x44/0xc4)
[   32.448307] [<c0009250>] (do_DataAbort) from [<c058d4dc>] (__dabt_svc+0x3c/0x60)
[   32.460247] Exception stack(0xc90ed9c0 to 0xc90eda08)
[   32.467575] d9c0: cb336040 00000000 00000800 00000000 00000000 cb0c0000 cb336328 c90eda98
[   32.480197] d9e0: cb336040 00000020 c082c138 c90eda14 c90eda18 c90eda08 c003ce08 c0041d10
[   32.492814] da00: 20000093 ffffffff
[   32.498506] [<c058d4dc>] (__dabt_svc) from [<c0041d10>] (kthread_data+0x18/0x20)
[   32.510251] [<c0041d10>] (kthread_data) from [<c003ce08>] (wq_worker_sleeping+0x1c/0xcc)
[   32.522689] [<c003ce08>] (wq_worker_sleeping) from [<c05892ac>] (__schedule+0x480/0x670)
[   32.535187] [<c05892ac>] (__schedule) from [<c05894e8>] (schedule+0x4c/0xa4)
[   32.544553] [<c05894e8>] (schedule) from [<c00267f8>] (do_exit+0x6c4/0xa94)
[   32.553819] [<c00267f8>] (do_exit) from [<c0013ccc>] (die+0x184/0x374)
[   32.562617] [<c0013ccc>] (die) from [<c0583ccc>] (__do_kernel_fault.part.0+0x64/0x84)
[   32.574780] [<c0583ccc>] (__do_kernel_fault.part.0) from [<c058de70>] (do_page_fault+0x26c/0x3f4)
[   32.587991] [<c058de70>] (do_page_fault) from [<c058e0a8>] (do_translation_fault+0xb0/0xb8)
[   32.600705] [<c058e0a8>] (do_translation_fault) from [<c0009250>] (do_DataAbort+0x44/0xc4)
[   32.613387] [<c0009250>] (do_DataAbort) from [<c058d4dc>] (__dabt_svc+0x3c/0x60)
[   32.625144] Exception stack(0xc90edc90 to 0xc90edcd8)
[   32.632419] dc80:                                     0000000d cb38f084 0000015f 00000000
[   32.644989] dca0: 0000014d 0000000a 0000015f c9080160 00000000 00000000 00000064 c90edcf4
[   32.657497] dcc0: cb38f096 c90edcd8 00000003 bf0ec4c0 60000013 ffffffff
[   32.666717] [<c058d4dc>] (__dabt_svc) from [<bf0ec4c0>] (cfg80211_get_bss_channel+0x104/0x140 [cfg80211])
[   32.681167] [<bf0ec4c0>] (cfg80211_get_bss_channel [cfg80211]) from [<bf0ed324>] (cfg80211_inform_bss_width+0x74/0x258 [cfg80211])
[   32.697812] [<bf0ed324>] (cfg80211_inform_bss_width [cfg80211]) from [<bf196738>] (brcmf_inform_single_bss+0xc8/0x140 [brcmfmac])
[   32.714198] [<bf196738>] (brcmf_inform_single_bss [brcmfmac]) from [<bf197294>] (brcmf_update_bss_info.part.8+0x74/0x12c [brcmfmac])
[   32.730820] [<bf197294>] (brcmf_update_bss_info.part.8 [brcmfmac]) from [<bf197524>] (brcmf_notify_roaming_status+0xb8/0x1c0 [brcmfmac])
[   32.747810] [<bf197524>] (brcmf_notify_roaming_status [brcmfmac]) from [<bf19ef9c>] (brcmf_fweh_call_event_handler+0x48/0xa4 [brcmfmac])
[   32.764807] [<bf19ef9c>] (brcmf_fweh_call_event_handler [brcmfmac]) from [<bf19f1b8>] (brcmf_fweh_event_worker+0x1c0/0x3bc [brcmfmac])
[   32.781532] [<bf19f1b8>] (brcmf_fweh_event_worker [brcmfmac]) from [<c003ba38>] (process_one_work+0x13c/0x48c)
[   32.796098] [<c003ba38>] (process_one_work) from [<c003bf00>] (worker_thread+0x178/0x538)
[   32.808877] [<c003bf00>] (worker_thread) from [<c0041714>] (kthread+0xe0/0xfc)
[   32.818474] [<c0041714>] (kthread) from [<c000f7d8>] (ret_from_fork+0x14/0x3c)
[   32.828036] Code: e24cb004 e52de004 e8bd4000 e5903340 (e5130010) 
[   32.836444] ---[ end trace 0d125a043c8709da ]---
[   32.843317] Fixing recursive fault but reboot is needed!
[   32.850894] Unable to handle kernel paging request at virtual address fffffff0
[   32.860379] pgd = c0004000
[   32.865259] [fffffff0] *pgd=0b7fa821, *pte=00000000, *ppte=00000000
[   32.873794] Internal error: Oops: 17 [#4] PREEMPT ARM
[   32.880990] Modules linked in: brcmfmac brcmutil cfg80211 rfkill snd_bcm2835 bcm2835_gpiomem snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   32.898095] CPU: 0 PID: 155 Comm: kworker/0:3 Tainted: G      D         4.1.13+ #826
[   32.910013] Hardware name: BCM2708
[   32.915474] task: cb336040 ti: c90ec000 task.ti: c90ec000
[   32.922933] PC is at kthread_data+0x18/0x20
[   32.929106] LR is at wq_worker_sleeping+0x1c/0xcc
[   32.935755] pc : [<c0041d10>]    lr : [<c003ce08>]    psr: 20000193
[   32.935755] sp : c90ed4a8  ip : c90ed4b8  fp : c90ed4b4
[   32.951007] r10: c082c138  r9 : c0041d12  r8 : cb336040
[   32.958058] r7 : 0000000b  r6 : 60000193  r5 : c08255a8  r4 : 00000000
[   32.966388] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : cb336040
[   32.974714] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   32.983738] Control: 00c5387d  Table: 0912c008  DAC: 00000015
[   32.991286] Process kworker/0:3 (pid: 155, stack limit = 0xc90ec188)
[   32.999457] Stack: (0xc90ed4a8 to 0xc90ee000)
[   33.005607] d4a0:                   c90ed4cc c90ed4b8 c003ce08 c0041d04 00000020 cb3363ac
[   33.017324] d4c0: c90ed50c c90ed4d0 c05892ac c003cdf8 c0060248 c005fa9c c06be070 c90ed51c
[   33.029138] d4e0: c90ed514 c90ec000 c08255a8 60000193 0000000b 00000001 c0041d12 cb336040
[   33.040996] d500: c90ed524 c90ed510 c05894e8 c0588e38 cb336040 0000000b c90ed56c c90ed528
[   33.052938] d520: c0026ae4 c05894a8 0000000b c082cb80 c90ed55c c08989a4 c08255a8 60000193
[   33.065078] d540: 0000000b c08989a4 c08255a8 60000193 0000000b 00000001 c0041d12 60000193
[   33.077411] d560: c90ed5ec c90ed570 c0013ccc c0026140 c90ec188 0000000b c0060248 bf000000
[   33.089900] d580: 00000008 00000000 650ed5bc 62633432 20343030 64323565 34303065 62386520
[   33.102551] d5a0: 30303464 35652030 33333039 28203034 33313565 30313030 c0002029 c05845b0
[   33.115329] d5c0: c06fdb30 fffffff0 00000017 00000000 c90ed710 cb336040 c0041d12 c082c138
[   33.128204] d5e0: c90ed604 c90ed5f0 c0583ccc c0013b54 c90ed710 00000000 c90ed65c c90ed608
[   33.141152] d600: c058de70 c0583c74 c90ed64c c90ed618 c033c20c c0042b08 ffffffff c90ed678
[   33.154107] d620: 00000004 c0042b10 ffffffff 00000000 c0945bf4 00000017 c058dc04 fffffff0
[   33.167063] d640: c08259e4 c90ed710 c0041d12 c082c138 c90ed70c c90ed660 c0009250 c058dc10
[   33.180038] d660: c90ed684 c90ed670 c0487eb8 c0486548 cb142010 20000193 c90ed6ac c90ed688
[   33.193015] d680: c037b538 c0487e88 c08766cc c089a5f8 0000003c c00592d8 00000000 427b1aa0
[   33.205990] d6a0: c90ed6cc c90ed6b0 c00592d8 c006757c 00000000 427b1aa0 00000000 783df66a
[   33.218948] d6c0: c90ed704 c90ed6d0 c004eb04 c0059294 c0082534 c001f9c4 ffffffff c004f868
[   33.231926] d6e0: 00000001 c004f870 00000002 c0041d10 20000193 ffffffff c90ed744 cb336040
[   33.244899] d700: c90ed764 c90ed710 c058d4dc c0009218 cb336040 00000000 00000400 00000000
[   33.257871] d720: 00000000 c08255a8 60000193 0000000b cb336040 c0041d12 c082c138 c90ed764
[   33.270834] d740: c90ed768 c90ed758 c003ce08 c0041d10 20000193 ffffffff c90ed77c c90ed768
[   33.283798] d760: c003ce08 c0041d04 00000020 cb3363ac c90ed7bc c90ed780 c05892ac c003cdf8
[   33.296762] d780: c0060248 c005fa9c c06be070 c90ed7cc c90ed7c4 c90ec000 c08255a8 60000193
[   33.309732] d7a0: 0000000b 00000001 c0041d12 cb336040 c90ed7d4 c90ed7c0 c05894e8 c0588e38
[   33.322698] d7c0: cb336040 0000000b c90ed81c c90ed7d8 c0026ae4 c05894a8 0000000b c082cb80
[   33.335660] d7e0: c90ed80c c08989a4 c08255a8 60000193 0000000b c08989a4 c08255a8 60000193
[   33.348631] d800: 0000000b 00000001 c0041d12 60000193 c90ed89c c90ed820 c0013ccc c0026140
[   33.361603] d820: c90ec188 0000000b c0060248 bf000000 00000008 00000000 650ed86c 62633432
[   33.374580] d840: 20343030 64323565 34303065 62386520 30303464 35652030 33333039 28203034
[   33.387534] d860: 33313565 30313030 c0002029 c05845b0 c06fdb30 fffffff0 00000017 00000000
[   33.400502] d880: c90ed9c0 cb336040 00000020 c082c138 c90ed8b4 c90ed8a0 c0583ccc c0013b54
[   33.413482] d8a0: c90ed9c0 00000000 c90ed90c c90ed8b8 c058de70 c0583c74 c05998b0 c01813a4
[   33.426455] d8c0: 00000000 cae9d3f8 c90ed8e8 c05998b0 c01a25b4 c083d748 cae9d490 60000013
[   33.439412] d8e0: c90ed914 00000017 c058dc04 fffffff0 c08259e4 c90ed9c0 00000020 c082c138
[   33.452363] d900: c90ed9bc c90ed910 c0009250 c058dc10 c006aa58 c006a784 c90ed934 c90ed928
[   33.465331] d920: c0152d50 c083d748 caf4ef60 60000013 c90ed964 c90ed940 c006a824 c00c4e34
[   33.478297] d940: caf4eee0 c00592d8 00000000 0001fbd0 c90ed97c c90ed960 c00592d8 c006757c
[   33.491262] d960: 00000000 0001fbd0 00000000 35c2dbca c90ed9b4 c90ed980 c004eb04 c0059294
[   33.504209] d980: c0082534 c001f9c4 ffffffff c004f868 00000001 c004f870 00000002 c0041d10
[   33.517172] d9a0: 20000093 ffffffff c90ed9f4 cb336040 c90eda14 c90ed9c0 c058d4dc c0009218
[   33.530149] d9c0: cb336040 00000000 00000800 00000000 00000000 cb0c0000 cb336328 c90eda98
[   33.543122] d9e0: cb336040 00000020 c082c138 c90eda14 c90eda18 c90eda08 c003ce08 c0041d10
[   33.556089] da00: 20000093 ffffffff c90eda2c c90eda18 c003ce08 c0041d04 00000020 cb3363ac
[   33.569038] da20: c90eda6c c90eda30 c05892ac c003cdf8 00000000 00000000 c0592ee4 00000001
[   33.582008] da40: c90eda5c c90ec000 cb0c0000 cb336328 c90eda98 00000001 00000020 cb336040
[   33.594979] da60: c90eda84 c90eda70 c05894e8 c0588e38 0420806c c90ed794 c90edacc c90eda88
[   33.607944] da80: c00267f8 c05894a8 00000000 00000001 c90edabc c08989a4 c90eda98 c90eda98
[   33.620892] daa0: 0000000b c08989a4 c08255a8 60000013 0000000b 00000001 bf0ec4c2 60000013
[   33.633844] dac0: c90edb4c c90edad0 c0013ccc c0026140 c90ec188 0000000b c0060248 00000000
[   33.646798] dae0: 00000008 00000000 300edb1c 66666661 20646466 30353365 31303030 64353020
[   33.659763] db00: 30303063 61312032 66666666 28206164 33393565 30303031 c0002029 c05845b0
[   33.672716] db20: c06fdb30 00000000 00000005 00000000 c90edc90 cb336040 00000000 00000064
[   33.685662] db40: c90edb64 c90edb50 c0583ccc c0013b54 c90edc90 00000000 c90edbbc c90edb68
[   33.698625] db60: c058de70 c0583c74 c90edb9c c90edb78 c0061140 c0027ff0 c90edbb0 c0048b04
[   33.711589] db80: 60000013 f200b200 c90edbe4 cb336040 c90edbac 00000005 c058dff8 00000000
[   33.724560] dba0: c08259c4 c90edc90 00000000 00000064 c90edbdc c90edbc0 c058e0a8 c058dc10
[   33.737515] dbc0: c0825974 00000005 c058dff8 00000000 c90edc8c c90edbe0 c0009250 c058e004
[   33.750478] dbe0: c90edbf8 c90edbf8 c0048b00 c0048b04 60000013 ffffffff ffffffff 00000000
[   33.763440] dc00: ca45ea80 000004e0 c08bb4c0 c90ec000 c90edc74 c08bb4c0 c90edc4c c90edc28
[   33.776407] dc20: c0070bec c00c471c c08bb4f8 c0070cc0 c90edc74 00000001 a0000013 ffff9704
[   33.789369] dc40: c90edc6c c90edc50 c0070cd4 c00c4e34 c05894e8 a0000013 a0000013 c90edc74
[   33.802320] dc60: c90edccc c90edc70 c058c3b8 bf0ec4c0 60000013 ffffffff c90edcc4 00000000
[   33.815290] dc80: c90edcf4 c90edc90 c058d4dc c0009218 0000000d cb38f084 0000015f 00000000
[   33.828258] dca0: 0000014d 0000000a 0000015f c9080160 00000000 00000000 00000064 c90edcf4
[   33.841222] dcc0: cb38f096 c90edcd8 00000003 bf0ec4c0 60000013 ffffffff c9080160 0000015f
[   33.854174] dce0: 00000411 cb38f00c c90edd7c c90edcf8 bf0ed324 bf0ec3c8 00000000 00000411
[   33.867131] dd00: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   33.880096] dd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   33.893067] dd40: 00000000 00000000 00000000 00000000 cb38f000 00000000 00000000 c9080160
[   33.906023] dd60: cb38f084 00000064 00000411 cb38f00c c90edde4 c90edd80 bf196738 bf0ed2bc
[   33.918971] dd80: cb38f00c c9080160 00000000 00000000 00000411 00000064 cb38f084 0000015f
[   33.931942] dda0: fffff060 000000d0 cb38dc00 bf19ea50 c90edde4 c90eddc0 bf19ea50 cb38f004
[   33.944905] ddc0: cb38f000 cb38dc00 00000000 c9080160 c90b5234 c90b5000 c90ede0c c90edde8
[   33.957874] dde0: bf197294 bf19667c c90ede90 c9080320 c90edea8 c9080320 cb38d800 cb38dc00
[   33.970835] de00: c90ede5c c90ede10 bf197524 bf19722c 00000000 0f266202 c90ede5c c90ede28
[   33.983804] de20: c004eb04 c0059294 c0082534 c001f9c4 ffffffff 00000013 ca760000 00000000
[   33.996773] de40: 00000000 00000000 00000001 ca76208c c90ede74 c90ede60 bf19ef9c bf197478
[   34.009742] de60: c91a0960 c90ec000 c90edeec c90ede78 bf19f1b8 bf19ef60 c90edeac c90ede88
[   34.022704] de80: c00426dc ca760000 ca76209c ca76208c 00000002 00000013 00000000 00000001
[   34.035659] dea0: 00000000 00000000 167f4e20 6c77a557 00000030 00000000 00000000 00000000
[   34.048634] dec0: ca45ed80 ca76208c ca6409c0 c082a6d0 cb632d00 00000000 00000000 c082a6d0
[   34.061610] dee0: c90edf2c c90edef0 c003ba38 bf19f004 c90ec000 c082a6d0 ca6409c0 ca6409d8
[   34.074594] df00: 00000008 c082a6d0 c90ec000 c082a6e0 ca6409c0 ca6409d8 00000008 c082a6d0
[   34.087554] df20: c90edf64 c90edf30 c003bf00 c003b908 c003bd88 00000000 00000000 c9067e40
[   34.100523] df40: 00000000 ca6409c0 c003bd88 00000000 00000000 00000000 c90edfac c90edf68
[   34.113491] df60: c0041714 c003bd94 c90edf94 00000000 c0048b00 ca6409c0 00000000 c90edf7c
[   34.126463] df80: c90edf7c 00000001 c90edf88 c90edf88 c9067e40 c0041634 00000000 00000000
[   34.139424] dfa0: 00000000 c90edfb0 c000f7d8 c0041640 00000000 00000000 00000000 00000000
[   34.152378] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   34.165350] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   34.178347] [<c0041d10>] (kthread_data) from [<c003ce08>] (wq_worker_sleeping+0x1c/0xcc)
[   34.191261] [<c003ce08>] (wq_worker_sleeping) from [<c05892ac>] (__schedule+0x480/0x670)
[   34.204137] [<c05892ac>] (__schedule) from [<c05894e8>] (schedule+0x4c/0xa4)
[   34.213659] [<c05894e8>] (schedule) from [<c0026ae4>] (do_exit+0x9b0/0xa94)
[   34.223071] [<c0026ae4>] (do_exit) from [<c0013ccc>] (die+0x184/0x374)
[   34.232006] [<c0013ccc>] (die) from [<c0583ccc>] (__do_kernel_fault.part.0+0x64/0x84)
[   34.244458] [<c0583ccc>] (__do_kernel_fault.part.0) from [<c058de70>] (do_page_fault+0x26c/0x3f4)
[   34.257939] [<c058de70>] (do_page_fault) from [<c0009250>] (do_DataAbort+0x44/0xc4)
[   34.270154] [<c0009250>] (do_DataAbort) from [<c058d4dc>] (__dabt_svc+0x3c/0x60)
[   34.282085] Exception stack(0xc90ed710 to 0xc90ed758)
[   34.289396] d700:                                     cb336040 00000000 00000400 00000000
[   34.301952] d720: 00000000 c08255a8 60000193 0000000b cb336040 c0041d12 c082c138 c90ed764
[   34.314468] d740: c90ed768 c90ed758 c003ce08 c0041d10 20000193 ffffffff
[   34.323330] [<c058d4dc>] (__dabt_svc) from [<c0041d10>] (kthread_data+0x18/0x20)
[   34.335031] [<c0041d10>] (kthread_data) from [<c003ce08>] (wq_worker_sleeping+0x1c/0xcc)
[   34.347440] [<c003ce08>] (wq_worker_sleeping) from [<c05892ac>] (__schedule+0x480/0x670)
[   34.359929] [<c05892ac>] (__schedule) from [<c05894e8>] (schedule+0x4c/0xa4)
[   34.369270] [<c05894e8>] (schedule) from [<c0026ae4>] (do_exit+0x9b0/0xa94)
[   34.378518] [<c0026ae4>] (do_exit) from [<c0013ccc>] (die+0x184/0x374)
[   34.387307] [<c0013ccc>] (die) from [<c0583ccc>] (__do_kernel_fault.part.0+0x64/0x84)
[   34.399457] [<c0583ccc>] (__do_kernel_fault.part.0) from [<c058de70>] (do_page_fault+0x26c/0x3f4)
[   34.412666] [<c058de70>] (do_page_fault) from [<c0009250>] (do_DataAbort+0x44/0xc4)
[   34.424664] [<c0009250>] (do_DataAbort) from [<c058d4dc>] (__dabt_svc+0x3c/0x60)
[   34.436448] Exception stack(0xc90ed9c0 to 0xc90eda08)
[   34.443727] d9c0: cb336040 00000000 00000800 00000000 00000000 cb0c0000 cb336328 c90eda98
[   34.456262] d9e0: cb336040 00000020 c082c138 c90eda14 c90eda18 c90eda08 c003ce08 c0041d10
[   34.468857] da00: 20000093 ffffffff
[   34.474553] [<c058d4dc>] (__dabt_svc) from [<c0041d10>] (kthread_data+0x18/0x20)
[   34.486279] [<c0041d10>] (kthread_data) from [<c003ce08>] (wq_worker_sleeping+0x1c/0xcc)
[   34.498721] [<c003ce08>] (wq_worker_sleeping) from [<c05892ac>] (__schedule+0x480/0x670)
[   34.511239] [<c05892ac>] (__schedule) from [<c05894e8>] (schedule+0x4c/0xa4)
[   34.520606] [<c05894e8>] (schedule) from [<c00267f8>] (do_exit+0x6c4/0xa94)
[   34.529873] [<c00267f8>] (do_exit) from [<c0013ccc>] (die+0x184/0x374)
[   34.538672] [<c0013ccc>] (die) from [<c0583ccc>] (__do_kernel_fault.part.0+0x64/0x84)
[   34.550839] [<c0583ccc>] (__do_kernel_fault.part.0) from [<c058de70>] (do_page_fault+0x26c/0x3f4)
[   34.564073] [<c058de70>] (do_page_fault) from [<c058e0a8>] (do_translation_fault+0xb0/0xb8)
[   34.576800] [<c058e0a8>] (do_translation_fault) from [<c0009250>] (do_DataAbort+0x44/0xc4)
[   34.589475] [<c0009250>] (do_DataAbort) from [<c058d4dc>] (__dabt_svc+0x3c/0x60)
[   34.601221] Exception stack(0xc90edc90 to 0xc90edcd8)
[   34.608506] dc80:                                     0000000d cb38f084 0000015f 00000000
[   34.621026] dca0: 0000014d 0000000a 0000015f c9080160 00000000 00000000 00000064 c90edcf4
[   34.633528] dcc0: cb38f096 c90edcd8 00000003 bf0ec4c0 60000013 ffffffff

This OOPS spam continues seemingly forever.

[ali1234]

This is also reproducible in a rpi-update kernel:

Uncompressing Linux... done, booting the kernel.
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.1.15+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #830 Tue Dec 15 16:58:28 GMT 2015
[    0.000000] CPU: ARMv6-compatible processor [410fb767] revision 7 (ARMv7), cr=00c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
[    0.000000] Machine model: Raspberry Pi Model A Plus Rev 1.1
[    0.000000] cma: Reserved 8 MiB at 0x0b800000
[    0.000000] Memory policy: Data cache writeback
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 48720
[    0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708.boardrev=0x12 bcm2708.serial=0xdd2f2419 smsc95xx.macaddr=B8:27:EB:2F:24:19 bcm2708_fb.fbswap=1 bcm2708.disk_led_gpio=47 bcm2708.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0xec00000 vc_mem.mem_size=0x10000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Memory: 177232K/196608K available (5762K kernel code, 488K rwdata, 1780K rodata, 352K init, 720K bss, 11184K reserved, 8192K cma-reserved)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xcc800000 - 0xff000000   ( 808 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xcc000000   ( 192 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0765d98   (7544 kB)
[    0.000000]       .init : 0xc0766000 - 0xc07be000   ( 352 kB)
[    0.000000]       .data : 0xc07be000 - 0xc0838218   ( 489 kB)
[    0.000000]        .bss : 0xc0838218 - 0xc08ec380   ( 721 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:522
[    0.000000] clocksource stc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000014] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000053] Switching to timer-based delay loop, resolution 1000ns
[    0.000336] Console: colour dummy device 80x30
[    0.001272] console [tty1] enabled
[    0.001328] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=10000)
[    0.001407] pid_max: default: 32768 minimum: 301
[    0.001761] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.001827] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.002860] Initializing cgroup subsys blkio
[    0.002947] Initializing cgroup subsys memory
[    0.003011] Initializing cgroup subsys devices
[    0.003069] Initializing cgroup subsys freezer
[    0.003125] Initializing cgroup subsys net_cls
[    0.003234] CPU: Testing write buffer coherency: ok
[    0.003344] ftrace: allocating 19694 entries in 58 pages
[    0.105991] Setting up static identity map for 0x81c0 - 0x81f8
[    0.108136] devtmpfs: initialized
[    0.118888] VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5
[    0.119349] clocksource jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.121261] pinctrl core: initialized pinctrl subsystem
[    0.122136] NET: Registered protocol family 16
[    0.127639] DMA: preallocated 4096 KiB pool for atomic coherent allocations
[    0.129142] bcm2708.uart_clock = 3000000
[    0.133730] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[    0.133806] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.133990] Serial: AMBA PL011 UART driver
[    0.134281] 20201000.uart: ttyAMA0 at MMIO 0x20201000 (irq = 83, base_baud = 0) is a PL011 rev2
[    0.511446] console [ttyAMA0] enabled
[    0.515833] bcm2835-mbox 2000b880.mailbox: mailbox enabled
[    0.560928] bcm2708-dmaengine 20007000.dma: DMA legacy API manager at f2007000, dmachans=0xf35
[    0.569775] bcm2708-dmaengine 20007000.dma: Initialized 7 DMA channels (+ 1 legacy)
[    0.578264] bcm2708-dmaengine 20007000.dma: Load BCM2835 DMA engine driver
[    0.585241] bcm2708-dmaengine 20007000.dma: dma_debug:0
[    0.591379] SCSI subsystem initialized
[    0.595560] usbcore: registered new interface driver usbfs
[    0.601206] usbcore: registered new interface driver hub
[    0.606760] usbcore: registered new device driver usb
[    0.612776] raspberrypi-firmware soc:firmware: Attached to firmware from 2015-12-08 14:38
[    0.648487] Switched to clocksource stc
[    0.697234] FS-Cache: Loaded
[    0.700656] CacheFiles: Loaded
[    0.718893] NET: Registered protocol family 2
[    0.724708] TCP established hash table entries: 2048 (order: 1, 8192 bytes)
[    0.731857] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[    0.738276] TCP: Hash tables configured (established 2048 bind 2048)
[    0.744908] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.750868] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.757517] NET: Registered protocol family 1
[    0.762563] RPC: Registered named UNIX socket transport module.
[    0.768609] RPC: Registered udp transport module.
[    0.773342] RPC: Registered tcp transport module.
[    0.778065] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.785809] hw perfevents: enabled with armv6_1176 PMU driver, 3 counters available
[    0.794968] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.817125] VFS: Disk quotas dquot_6.6.0
[    0.821650] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.831245] FS-Cache: Netfs 'nfs' registered for caching
[    0.837940] NFS: Registering the id_resolver key type
[    0.843244] Key type id_resolver registered
[    0.847466] Key type id_legacy registered
[    0.855224] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[    0.863213] io scheduler noop registered
[    0.867204] io scheduler deadline registered (default)
[    0.872874] io scheduler cfq registered
[    0.879210] BCM2708FB: allocated DMA memory 4bc00000
[    0.884291] BCM2708FB: allocated DMA channel 0 @ f2007000
[    0.894812] Console: switching to colour frame buffer device 82x26
[    0.906120] Serial: 8250/16550 driver, 0 ports, IRQ sharing disabled
[    0.915907] vc-cma: Videocore CMA driver
[    0.921704] vc-cma: vc_cma_base      = 0x00000000
[    0.928121] vc-cma: vc_cma_size      = 0x00000000 (0 MiB)
[    0.935188] vc-cma: vc_cma_initial   = 0x00000000 (0 MiB)
[    0.942567] vc-mem: phys_addr:0x00000000 mem_base=0x0ec00000 mem_size:0x10000000(256 MiB)
[    0.973094] brd: module loaded
[    0.986732] loop: module loaded
[    0.992655] vchiq: vchiq_init_state: slot_zero = 0xcbc80000, is_master = 0
[    1.003256] Loading iSCSI transport class v2.0-870.
[    1.011374] usbcore: registered new interface driver smsc95xx
[    1.019035] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    1.226776] Core Release: 2.80a
[    1.231596] Setting default values for core params
[    1.237954] Finished setting default values for core params
[    1.445482] Using Buffer DMA mode
[    1.450430] Periodic Transfer Interrupt Enhancement - disabled
[    1.457857] Multiprocessor Interrupt Enhancement - disabled
[    1.465091] OTG VER PARAM: 0, OTG VER FLAG: 0
[    1.471145] Dedicated Tx FIFOs mode
[    1.476673] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xcbc14000 dma = 0x4bc14000 len=9024
[    1.489857] FIQ FSM acceleration enabled for :
[    1.489857] Non-periodic Split Transactions
[    1.489857] Periodic Split Transactions
[    1.489857] High-Speed Isochronous Endpoints
[    1.513246] WARN::hcd_init_fiq:412: FIQ on core 0 at 0xc03d6cfc
[    1.520841] WARN::hcd_init_fiq:413: FIQ ASM at 0xc03d6fd4 length 36
[    1.528775] WARN::hcd_init_fiq:438: MPHI regs_base at 0xcc896000
[    1.536509] dwc_otg 20980000.usb: DWC OTG Controller
[    1.543202] dwc_otg 20980000.usb: new USB bus registered, assigned bus number 1
[    1.552266] dwc_otg 20980000.usb: irq 32, io mem 0x00000000
[    1.559535] Init: Port Power? op_state=1
[    1.565032] Init: Power Port (0)
[    1.570180] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.578669] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.587492] usb usb1: Product: DWC OTG Controller
[    1.593809] usb usb1: Manufacturer: Linux 4.1.15+ dwc_otg_hcd
[    1.601175] usb usb1: SerialNumber: 20980000.usb
[    1.608415] hub 1-0:1.0: USB hub found
[    1.613940] hub 1-0:1.0: 1 port detected
[    1.620670] usbcore: registered new interface driver usb-storage
[    1.628762] mousedev: PS/2 mouse device common for all mice
[    1.636927] bcm2835-cpufreq: min=700000 max=700000
[    1.643788] sdhci: Secure Digital Host Controller Interface driver
[    1.651638] sdhci: Copyright(c) Pierre Ossman
[    1.728556] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[    1.735999] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.765264] ledtrig-cpu: registered to indicate activity on CPUs
[    1.774234] hidraw: raw HID events driver (C) Jiri Kosina
[    1.788997] usbcore: registered new interface driver usbhid
[    1.796223] usbhid: USB HID core driver
[    1.806242] Initializing XFRM netlink socket
[    1.812248] NET: Registered protocol family 17
[    1.819101] Indeed it is in host mode hprt0 = 00021501
[    1.886243] Key type dns_resolver registered
[    1.894260] registered taskstats version 1
[    1.903639] vc-sm: Videocore shared memory driver
[    1.910820] [vc_sm_connected_init]: start
[    1.917924] [vc_sm_connected_init]: end - returning 0
[    1.924806] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.938394] Waiting for root device /dev/mmcblk0p2...
[    1.948470] mmc0: new high speed SDHC card at address aaaa
[    1.956611] mmcblk0: mmc0:aaaa SL08G 7.40 GiB 
[    1.964614]  mmcblk0: p1 p2
[    2.058622] usb 1-1: new high-speed USB device number 2 using dwc_otg
[    2.068149] Indeed it is in host mode hprt0 = 00001101
[    2.138678] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.150333] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    2.167244] devtmpfs: mounted
[    2.173293] Freeing unused kernel memory: 352K (c0766000 - c07be000)
[    2.302401] usb 1-1: New USB device found, idVendor=0a5c, idProduct=bd1e
[    2.311183] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.320323] usb 1-1: Product: Remote Download Wireless Adapter
[    2.328064] usb 1-1: Manufacturer: Broadcom
[    2.334141] usb 1-1: SerialNumber: 000000000001
[    2.502816] random: systemd urandom read with 56 bits of entropy available
[    2.519326] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR)
[    2.537451] systemd[1]: Detected architecture 'arm'.
[    2.668302] NET: Registered protocol family 10
[    2.677027] systemd[1]: Inserted module 'ipv6'
[    2.686591] systemd[1]: Set hostname to <raspberrypi>.
[    2.858052] uart-pl011 20201000.uart: no DMA platform data
[    3.108656] random: nonblocking pool is initialized
[    3.389233] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory.
[    3.415247] systemd[1]: Expecting device dev-ttyAMA0.device...
[    3.426345] systemd[1]: Starting Forward Password Requests to Wall Directory Watch.
[    3.438314] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    3.450076] systemd[1]: Starting Remote File Systems (Pre).
[    3.460581] systemd[1]: Reached target Remote File Systems (Pre).
[    3.469187] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point.
[    3.485714] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    3.499746] systemd[1]: Starting Encrypted Volumes.
[    3.509968] systemd[1]: Reached target Encrypted Volumes.
[    3.517835] systemd[1]: Starting Swap.
[    3.526709] systemd[1]: Reached target Swap.
[    3.533340] systemd[1]: Expecting device dev-mmcblk0p1.device...
[    3.544295] systemd[1]: Starting Root Slice.
[    3.553590] systemd[1]: Created slice Root Slice.
[    3.560536] systemd[1]: Starting User and Session Slice.
[    3.570911] systemd[1]: Created slice User and Session Slice.
[    3.578841] systemd[1]: Starting /dev/initctl Compatibility Named Pipe.
[    3.590555] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    3.599694] systemd[1]: Starting Delayed Shutdown Socket.
[    3.609875] systemd[1]: Listening on Delayed Shutdown Socket.
[    3.617617] systemd[1]: Starting Journal Socket (/dev/log).
[    3.627978] systemd[1]: Listening on Journal Socket (/dev/log).
[    3.636068] systemd[1]: Starting udev Control Socket.
[    3.645896] systemd[1]: Listening on udev Control Socket.
[    3.653485] systemd[1]: Starting udev Kernel Socket.
[    3.663131] systemd[1]: Listening on udev Kernel Socket.
[    3.670609] systemd[1]: Starting Journal Socket.
[    3.680131] systemd[1]: Listening on Journal Socket.
[    3.687288] systemd[1]: Starting System Slice.
[    3.696599] systemd[1]: Created slice System Slice.
[    3.703810] systemd[1]: Starting File System Check on Root Device...
[    3.719576] systemd[1]: Starting system-systemd\x2dfsck.slice.
[    3.740401] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[    3.754699] systemd[1]: Starting system-getty.slice.
[    3.769868] systemd[1]: Created slice system-getty.slice.
[    3.777223] systemd[1]: Starting system-serial\x2dgetty.slice.
[    3.794538] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    3.804004] systemd[1]: Starting Increase datagram queue length...
[    3.825798] systemd[1]: Starting Restore / save the current clock...
[    3.864655] systemd[1]: Starting udev Coldplug all Devices...
[    3.929354] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[    4.042691] systemd[1]: Starting Load Kernel Modules...
[    4.150442] systemd[1]: Started Set Up Additional Binary Formats.
[    4.190727] systemd[1]: Mounted Huge Pages File System.
[    4.238843] systemd[1]: Mounting Debug File System...
[    4.261837] systemd[1]: Mounting POSIX Message Queue File System...
[    4.302920] systemd[1]: Starting Slices.
[    4.347456] systemd[1]: Reached target Slices.
[    4.378599] systemd[1]: Mounted POSIX Message Queue File System.
[    4.390194] systemd[1]: Mounted Debug File System.
[    4.405253] systemd[1]: Started File System Check on Root Device.
[    4.436169] systemd[1]: Started Increase datagram queue length.
[    4.450251] systemd[1]: Started Restore / save the current clock.
[    4.480098] systemd[1]: Started Create list of required static device nodes for the current kernel.
[    4.518864] systemd[1]: Started Load Kernel Modules.
[    4.546814] systemd[1]: Time has been changed
[    4.688912] systemd[1]: Started udev Coldplug all Devices.
[    4.939959] systemd[1]: Starting Apply Kernel Variables...
[    4.957941] systemd[1]: Mounting Configuration File System...
[    4.986552] systemd[1]: Mounted FUSE Control File System.
[   19.043757] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[   19.054776] pgd = c0004000
[   19.058964] [00000000] *pgd=00000000
[   19.063966] Internal error: Oops: 5 [#1] ARM
[   19.069546] Modules linked in: brcmfmac brcmutil cfg80211 rfkill bcm2835_gpiomem snd_bcm2835 snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   19.085074] CPU: 0 PID: 176 Comm: kworker/0:4 Not tainted 4.1.15+ #830
[   19.093049] Hardware name: BCM2708
[   19.098083] Workqueue: events brcmf_fweh_event_worker [brcmfmac]
[   19.105681] task: ca741b40 ti: c909e000 task.ti: c909e000
[   19.113032] PC is at cfg80211_get_bss_channel+0x104/0x140 [cfg80211]
[   19.121031] LR is at 0x3
[   19.125139] pc : [<bf0f1840>]    lr : [<00000003>]    psr: 60000013
[   19.125139] sp : c909fce0  ip : ca463096  fp : c909fcfc
[   19.139888] r10: 00000064  r9 : 00000000  r8 : 00000000
[   19.146782] r7 : c90c0160  r6 : 0000015f  r5 : 0000000a  r4 : 0000014d
[   19.155004] r3 : 00000000  r2 : 0000015f  r1 : ca463084  r0 : 0000000d
[   19.163254] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[   19.172336] Control: 00c5387d  Table: 0a6a4008  DAC: 00000015
[   19.179884] Process kworker/0:4 (pid: 176, stack limit = 0xc909e188)
[   19.188015] Stack: (0xc909fce0 to 0xc90a0000)
[   19.194106] fce0: c90c0160 0000015f 00000411 ca46300c c909fd84 c909fd00 bf0f2694 bf0f1748
[   19.205869] fd00: 00000000 00000411 00000000 00000000 00000000 00000000 00000000 00000000
[   19.217850] fd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   19.229872] fd40: 00000000 00000000 00000000 00000000 00000000 00000000 ca463000 00000000
[   19.241972] fd60: 00000000 c90c0160 ca463084 00000064 00000411 ca46300c c909fdec c909fd88
[   19.254205] fd80: bf196738 bf0f262c ca46300c c90c0160 00000000 00000000 00000411 00000064
[   19.266577] fda0: ca463084 0000015f ffffee6c 000000d0 ca462400 bf19ea50 c909fdec c909fdc8
[   19.279106] fdc0: bf19ea50 ca463004 ca463000 ca462400 00000000 c90c0160 ca48e234 ca48e000
[   19.291814] fde0: c909fe14 c909fdf0 bf197294 bf19667c c909fe98 c90c0320 c909feb0 c90c0320
[   19.304635] fe00: ca462000 ca462400 c909fe64 c909fe18 bf197524 bf19722c ca741b70 c0049938
[   19.317563] fe20: c909fe64 c909fe30 c0049938 c005341c c0073574 c001f59c ffffffff 00000013
[   19.330543] fe40: c90b8000 00000000 00000000 00000000 00000001 c9182511 c909fe7c c909fe68
[   19.343506] fe60: bf19ef9c bf197478 c91824e0 c90ba08c c909fef4 c909fe80 bf19f180 bf19ef60
[   19.356472] fe80: 0000000b c003ebc4 ffffffff 00000000 c90b8000 c90ba09c 00000002 00000013
[   19.369447] fea0: 00000000 00000001 00000000 00000000 167f4e20 6c77a557 00000030 00000000
[   19.382419] fec0: 00000000 00000000 cb321600 c90ba08c ca5b5840 c07ca6d8 cb632d00 00000000
[   19.395389] fee0: 00000000 00000004 c909ff34 c909fef8 c00387ac bf19f004 c07ca6d8 ca5b5840
[   19.408335] ff00: ca5b5858 00000008 c07ca6d8 c07ca6d8 c07ca6e8 ca5b5840 ca5b5858 00000008
[   19.421303] ff20: c07ca6d8 00000004 c909ff64 c909ff38 c0038b88 c00386a8 ca741b40 ca5da280
[   19.434267] ff40: 00000000 ca5b5840 c0038a2c 00000000 00000000 00000000 c909ffac c909ff68
[   19.447229] ff60: c003de24 c0038a38 c909ff94 00000000 c0044424 ca5b5840 00000000 c909ff7c
[   19.460184] ff80: c909ff7c 00000000 c909ff88 c909ff88 ca5da280 c003dd44 00000000 00000000
[   19.473138] ffa0: 00000000 c909ffb0 c000f5d8 c003dd50 00000000 00000000 00000000 00000000
[   19.486104] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   19.499071] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   19.512581] [<bf0f1840>] (cfg80211_get_bss_channel [cfg80211]) from [<bf0f2694>] (cfg80211_inform_bss_width+0x74/0x210 [cfg80211])
[   19.529626] [<bf0f2694>] (cfg80211_inform_bss_width [cfg80211]) from [<bf196738>] (brcmf_inform_single_bss+0xc8/0x140 [brcmfmac])
[   19.546350] [<bf196738>] (brcmf_inform_single_bss [brcmfmac]) from [<bf197294>] (brcmf_update_bss_info.part.8+0x74/0x12c [brcmfmac])
[   19.563284] [<bf197294>] (brcmf_update_bss_info.part.8 [brcmfmac]) from [<bf197524>] (brcmf_notify_roaming_status+0xb8/0x1c0 [brcmfmac])
[   19.580575] [<bf197524>] (brcmf_notify_roaming_status [brcmfmac]) from [<bf19ef9c>] (brcmf_fweh_call_event_handler+0x48/0xa4 [brcmfmac])
[   19.597851] [<bf19ef9c>] (brcmf_fweh_call_event_handler [brcmfmac]) from [<bf19f180>] (brcmf_fweh_event_worker+0x188/0x370 [brcmfmac])
[   19.614853] [<bf19f180>] (brcmf_fweh_event_worker [brcmfmac]) from [<c00387ac>] (process_one_work+0x110/0x390)
[   19.629610] [<c00387ac>] (process_one_work) from [<c0038b88>] (worker_thread+0x15c/0x4e4)
[   19.642458] [<c0038b88>] (worker_thread) from [<c003de24>] (kthread+0xe0/0xfc)
[   19.652132] [<c003de24>] (kthread) from [<c000f5d8>] (ret_from_fork+0x14/0x3c)
[   19.661741] Code: 0affffdd e3500001 05dc0002 1affffda (e5931000) 
[   19.670385] ---[ end trace 073638cd1f666cb8 ]---
[   19.721260] Unable to handle kernel paging request at virtual address fffffff0
[   19.733095] pgd = c0004000
[   19.738035] [fffffff0] *pgd=0b7fa821, *pte=00000000, *ppte=00000000
[   19.746623] Internal error: Oops: 17 [#2] ARM
[   19.753167] Modules linked in: brcmfmac brcmutil cfg80211 rfkill bcm2835_gpiomem snd_bcm2835 snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   19.770380] CPU: 0 PID: 176 Comm: kworker/0:4 Tainted: G      D         4.1.15+ #830
[   19.782418] Hardware name: BCM2708
[   19.787935] task: ca741b40 ti: c909e000 task.ti: c909e000
[   19.795455] PC is at kthread_data+0x18/0x20
[   19.801691] LR is at wq_worker_sleeping+0x1c/0xcc
[   19.808395] pc : [<c003e2ec>]    lr : [<c003992c>]    psr: 20000093
[   19.808395] sp : c909fa10  ip : c909fa20  fp : c909fa1c
[   19.823755] r10: c07cafc8  r9 : 00000020  r8 : ca741b40
[   19.830864] r7 : c909faa0  r6 : ca741e10  r5 : cb0c0000  r4 : 00000000
[   19.839249] r3 : 00000000  r2 : 00000400  r1 : 00000000  r0 : ca741b40
[   19.847626] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   19.856704] Control: 00c5387d  Table: 0a4e0008  DAC: 00000015
[   19.864310] Process kworker/0:4 (pid: 176, stack limit = 0xc909e188)
[   19.872498] Stack: (0xc909fa10 to 0xc90a0000)
[   19.878653] fa00:                                     c909fa34 c909fa20 c003992c c003e2e0
[   19.890325] fa20: 00000020 ca741e94 c909fa74 c909fa38 c052cfa0 c003991c c0024134 c00603e8
[   19.902076] fa40: c0535dd0 00000001 c909fa64 c909e000 cb0c0000 ca741e10 c909faa0 00000001
[   19.913865] fa60: 00000020 ca741b40 c909fa8c c909fa78 c052d16c c052cbc0 0420806c c909f7b4
[   19.925752] fa80: c909fad4 c909fa90 c0025858 c052d12c 00000000 00000001 c909fac4 c08383c4
[   19.937833] faa0: c909faa0 c909faa0 0000000b c08383c4 c07c5570 60000113 0000000b 00000001
[   19.950102] fac0: bf0f1842 60000113 c909fb54 c909fad8 c0013a64 c0025238 c909e188 0000000b
[   19.962529] fae0: 00000000 00000000 00000008 00000000 300592e0 66666661 20646466 30353365
[   19.975121] fb00: 31303030 64353020 30303063 61312032 66666666 28206164 33393565 30303031
[   19.987833] fb20: c0002029 c0528914 c069f1b0 00000000 00000005 00000000 c909fc98 ca741b40
[   20.000645] fb40: 00000000 00000064 c909fb6c c909fb58 c0528120 c00138ec c909fc98 00000000
[   20.013573] fb60: c909fbc4 c909fb70 c0530ca4 c05280c8 c0073574 c001f59c ffffffff c004a5c0
[   20.026554] fb80: 00000001 c004a5c8 00000001 00000001 00000000 c004a688 c909fbdc 00000005
[   20.039541] fba0: c0530e34 00000000 c07c598c c909fc98 00000000 00000064 c909fbe4 c909fbc8
[   20.052539] fbc0: c0530ee4 c0530a90 c07c593c 00000005 c0530e34 00000000 c909fc94 c909fbe8
[   20.065535] fbe0: c0009204 c0530e40 c07c3928 00000000 c909fc1c c909fc00 c0044424 c00b31c8
[   20.078524] fc00: ffffffff 00000000 c901c780 000004e0 c909fc5c c909fc20 c085aea0 c909fc7c
[   20.091501] fc20: c085aea0 c909fc5c c909fc54 c909fc38 c00638d4 c0063978 c909fc7c a0000013
[   20.104500] fc40: 00000001 ffff92ed c909fc74 c909fc58 c00639b0 c00b31c8 c052d16c a0000013
[   20.117504] fc60: a0000013 c909fc7c c909fcd4 c909fc78 c052f4a0 bf0f1840 60000013 ffffffff
[   20.130505] fc80: c909fccc 00000000 c909fcfc c909fc98 c053039c c00091cc 0000000d ca463084
[   20.143497] fca0: 0000015f 00000000 0000014d 0000000a 0000015f c90c0160 00000000 00000000
[   20.156507] fcc0: 00000064 c909fcfc ca463096 c909fce0 00000003 bf0f1840 60000013 ffffffff
[   20.169514] fce0: c90c0160 0000015f 00000411 ca46300c c909fd84 c909fd00 bf0f2694 bf0f1748
[   20.182513] fd00: 00000000 00000411 00000000 00000000 00000000 00000000 00000000 00000000
[   20.195505] fd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   20.208489] fd40: 00000000 00000000 00000000 00000000 00000000 00000000 ca463000 00000000
[   20.221501] fd60: 00000000 c90c0160 ca463084 00000064 00000411 ca46300c c909fdec c909fd88
[   20.234505] fd80: bf196738 bf0f262c ca46300c c90c0160 00000000 00000000 00000411 00000064
[   20.247510] fda0: ca463084 0000015f ffffee6c 000000d0 ca462400 bf19ea50 c909fdec c909fdc8
[   20.260497] fdc0: bf19ea50 ca463004 ca463000 ca462400 00000000 c90c0160 ca48e234 ca48e000
[   20.273491] fde0: c909fe14 c909fdf0 bf197294 bf19667c c909fe98 c90c0320 c909feb0 c90c0320
[   20.286497] fe00: ca462000 ca462400 c909fe64 c909fe18 bf197524 bf19722c ca741b70 c0049938
[   20.299501] fe20: c909fe64 c909fe30 c0049938 c005341c c0073574 c001f59c ffffffff 00000013
[   20.312497] fe40: c90b8000 00000000 00000000 00000000 00000001 c9182511 c909fe7c c909fe68
[   20.325488] fe60: bf19ef9c bf197478 c91824e0 c90ba08c c909fef4 c909fe80 bf19f180 bf19ef60
[   20.338492] fe80: 0000000b c003ebc4 ffffffff 00000000 c90b8000 c90ba09c 00000002 00000013
[   20.351489] fea0: 00000000 00000001 00000000 00000000 167f4e20 6c77a557 00000030 00000000
[   20.364483] fec0: 00000000 00000000 cb321600 c90ba08c ca5b5840 c07ca6d8 cb632d00 00000000
[   20.377472] fee0: 00000000 00000004 c909ff34 c909fef8 c00387ac bf19f004 c07ca6d8 ca5b5840
[   20.390458] ff00: ca5b5858 00000008 c07ca6d8 c07ca6d8 c07ca6e8 ca5b5840 ca5b5858 00000008
[   20.403460] ff20: c07ca6d8 00000004 c909ff64 c909ff38 c0038b88 c00386a8 ca741b40 ca5da280
[   20.416466] ff40: 00000000 ca5b5840 c0038a2c 00000000 00000000 00000000 c909ffac c909ff68
[   20.429464] ff60: c003de24 c0038a38 c909ff94 00000000 c0044424 ca5b5840 00000000 c909ff7c
[   20.442452] ff80: c909ff7c 00000001 c909ff88 c909ff88 ca5da280 c003dd44 00000000 00000000
[   20.455446] ffa0: 00000000 c909ffb0 c000f5d8 c003dd50 00000000 00000000 00000000 00000000
[   20.468445] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   20.481447] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   20.494468] [<c003e2ec>] (kthread_data) from [<c003992c>] (wq_worker_sleeping+0x1c/0xcc)
[   20.507409] [<c003992c>] (wq_worker_sleeping) from [<c052cfa0>] (__schedule+0x3ec/0x56c)
[   20.520331] [<c052cfa0>] (__schedule) from [<c052d16c>] (schedule+0x4c/0xa4)
[   20.529866] [<c052d16c>] (schedule) from [<c0025858>] (do_exit+0x62c/0x958)
[   20.539290] [<c0025858>] (do_exit) from [<c0013a64>] (die+0x184/0x374)
[   20.548258] [<c0013a64>] (die) from [<c0528120>] (__do_kernel_fault.part.0+0x64/0x84)
[   20.560740] [<c0528120>] (__do_kernel_fault.part.0) from [<c0530ca4>] (do_page_fault+0x220/0x3b0)
[   20.574255] [<c0530ca4>] (do_page_fault) from [<c0530ee4>] (do_translation_fault+0xb0/0xb8)
[   20.587221] [<c0530ee4>] (do_translation_fault) from [<c0009204>] (do_DataAbort+0x44/0xc4)
[   20.600088] [<c0009204>] (do_DataAbort) from [<c053039c>] (__dabt_svc+0x3c/0x60)
[   20.612026] Exception stack(0xc909fc98 to 0xc909fce0)
[   20.619344] fc80:                                                       0000000d ca463084
[   20.631847] fca0: 0000015f 00000000 0000014d 0000000a 0000015f c90c0160 00000000 00000000
[   20.644273] fcc0: 00000064 c909fcfc ca463096 c909fce0 00000003 bf0f1840 60000013 ffffffff
[   20.657170] [<c053039c>] (__dabt_svc) from [<bf0f1840>] (cfg80211_get_bss_channel+0x104/0x140 [cfg80211])
[   20.671663] [<bf0f1840>] (cfg80211_get_bss_channel [cfg80211]) from [<bf0f2694>] (cfg80211_inform_bss_width+0x74/0x210 [cfg80211])
[   20.688368] [<bf0f2694>] (cfg80211_inform_bss_width [cfg80211]) from [<bf196738>] (brcmf_inform_single_bss+0xc8/0x140 [brcmfmac])
[   20.704778] [<bf196738>] (brcmf_inform_single_bss [brcmfmac]) from [<bf197294>] (brcmf_update_bss_info.part.8+0x74/0x12c [brcmfmac])
[   20.721403] [<bf197294>] (brcmf_update_bss_info.part.8 [brcmfmac]) from [<bf197524>] (brcmf_notify_roaming_status+0xb8/0x1c0 [brcmfmac])
[   20.738392] [<bf197524>] (brcmf_notify_roaming_status [brcmfmac]) from [<bf19ef9c>] (brcmf_fweh_call_event_handler+0x48/0xa4 [brcmfmac])
[   20.755381] [<bf19ef9c>] (brcmf_fweh_call_event_handler [brcmfmac]) from [<bf19f180>] (brcmf_fweh_event_worker+0x188/0x370 [brcmfmac])
[   20.772141] [<bf19f180>] (brcmf_fweh_event_worker [brcmfmac]) from [<c00387ac>] (process_one_work+0x110/0x390)
[   20.786831] [<c00387ac>] (process_one_work) from [<c0038b88>] (worker_thread+0x15c/0x4e4)
[   20.799704] [<c0038b88>] (worker_thread) from [<c003de24>] (kthread+0xe0/0xfc)
[   20.809340] [<c003de24>] (kthread) from [<c000f5d8>] (ret_from_fork+0x14/0x3c)
[   20.818934] Code: e24cb004 e52de004 e8bd4000 e5903328 (e5130010) 
[   20.827357] ---[ end trace 073638cd1f666cb9 ]---
[   20.834244] Fixing recursive fault but reboot is needed!
[   20.841824] Unable to handle kernel paging request at virtual address fffffff0
[   20.851311] pgd = c0004000
[   20.856196] [fffffff0] *pgd=0b7fa821, *pte=00000000, *ppte=00000000
[   20.864726] Internal error: Oops: 17 [#3] ARM
[   20.871217] Modules linked in: brcmfmac brcmutil cfg80211 rfkill bcm2835_gpiomem snd_bcm2835 snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   20.888338] CPU: 0 PID: 176 Comm: kworker/0:4 Tainted: G      D         4.1.15+ #830
[   20.900276] Hardware name: BCM2708
[   20.905734] task: ca741b40 ti: c909e000 task.ti: c909e000
[   20.913198] PC is at kthread_data+0x18/0x20
[   20.919387] LR is at wq_worker_sleeping+0x1c/0xcc
[   20.926041] pc : [<c003e2ec>]    lr : [<c003992c>]    psr: 20000193
[   20.926041] sp : c909f760  ip : c909f770  fp : c909f76c
[   20.941301] r10: c07cafc8  r9 : c003e2ee  r8 : ca741b40
[   20.948356] r7 : 0000000b  r6 : 60000193  r5 : c07c5570  r4 : 00000000
[   20.956691] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : ca741b40
[   20.965022] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   20.974043] Control: 00c5387d  Table: 0a4e0008  DAC: 00000015
[   20.981598] Process kworker/0:4 (pid: 176, stack limit = 0xc909e188)
[   20.989774] Stack: (0xc909f760 to 0xc90a0000)
[   20.995928] f760: c909f784 c909f770 c003992c c003e2e0 00000020 ca741e94 c909f7c4 c909f788
[   21.007669] f780: c052cfa0 c003991c c003e2ee ca741b40 c909f7b4 c909f7a0 c00592e0 c909e000
[   21.019526] f7a0: c07c5570 60000193 0000000b 00000001 c003e2ee ca741b40 c909f7dc c909f7c8
[   21.031429] f7c0: c052d16c c052cbc0 ca741b40 0000000b c909f824 c909f7e0 c0025ae0 c052d12c
[   21.043421] f7e0: 0000000b c07ccb88 c909f814 c08383c4 c07c5570 60000193 0000000b c08383c4
[   21.055612] f800: c07c5570 60000193 0000000b 00000001 c003e2ee 60000193 c909f8a4 c909f828
[   21.067990] f820: c0013a64 c0025238 c909e188 0000000b 00000020 bf000000 00000008 00000000
[   21.080531] f840: 650592e0 62633432 20343030 64323565 34303065 62386520 30303464 35652030
[   21.093236] f860: 33333039 28203832 33313565 30313030 c0002029 c0528914 c069f1b0 fffffff0
[   21.106064] f880: 00000017 00000000 c909f9c8 ca741b40 00000020 c07cafc8 c909f8bc c909f8a8
[   21.118996] f8a0: c0528120 c00138ec c909f9c8 00000000 c909f914 c909f8c0 c0530ca4 c05280c8
[   21.131969] f8c0: c00603c4 c00b31c8 c017a994 caf697d0 c053c790 c0049908 0001b580 00000000
[   21.144928] f8e0: f8c86295 00000001 ca741b70 00000017 c0530a84 fffffff0 c07c59ac c909f9c8
[   21.157913] f900: 00000020 c07cafc8 c909f9c4 c909f918 c0009204 c0530a90 00000004 c0049e5c
[   21.170885] f920: cb0c1b70 c004a8e8 c909f97c cb0c1b70 ca741b70 00000000 ca741b40 c0049e70
[   21.183865] f940: cb0c1b70 c0049eb8 c909f984 c909f958 c0049eb8 c00455ec 00000004 c07cafc8
[   21.196840] f960: ca741b40 c07cafc8 60000093 cb0c1b40 00000000 00000020 c909f99c c909f988
[   21.209804] f980: c0045a3c c004a5fc c07cafc8 cb0c1b40 c909f9b4 c004a5c0 00000001 c004a5c8
[   21.222776] f9a0: 00000001 c003e2ec 20000093 ffffffff c909f9fc ca741b40 c909fa1c c909f9c8
[   21.235745] f9c0: c053039c c00091cc ca741b40 00000000 00000400 00000000 00000000 cb0c0000
[   21.248712] f9e0: ca741e10 c909faa0 ca741b40 00000020 c07cafc8 c909fa1c c909fa20 c909fa10
[   21.261662] fa00: c003992c c003e2ec 20000093 ffffffff c909fa34 c909fa20 c003992c c003e2e0
[   21.274620] fa20: 00000020 ca741e94 c909fa74 c909fa38 c052cfa0 c003991c c0024134 c00603e8
[   21.287586] fa40: c0535dd0 00000001 c909fa64 c909e000 cb0c0000 ca741e10 c909faa0 00000001
[   21.300552] fa60: 00000020 ca741b40 c909fa8c c909fa78 c052d16c c052cbc0 0420806c c909f7b4
[   21.313514] fa80: c909fad4 c909fa90 c0025858 c052d12c 00000000 00000001 c909fac4 c08383c4
[   21.326464] faa0: c909faa0 c909faa0 0000000b c08383c4 c07c5570 60000113 0000000b 00000001
[   21.339436] fac0: bf0f1842 60000113 c909fb54 c909fad8 c0013a64 c0025238 c909e188 0000000b
[   21.352410] fae0: 00000000 00000000 00000008 00000000 300592e0 66666661 20646466 30353365
[   21.365381] fb00: 31303030 64353020 30303063 61312032 66666666 28206164 33393565 30303031
[   21.378335] fb20: c0002029 c0528914 c069f1b0 00000000 00000005 00000000 c909fc98 ca741b40
[   21.391298] fb40: 00000000 00000064 c909fb6c c909fb58 c0528120 c00138ec c909fc98 00000000
[   21.404270] fb60: c909fbc4 c909fb70 c0530ca4 c05280c8 c0073574 c001f59c ffffffff c004a5c0
[   21.417237] fb80: 00000001 c004a5c8 00000001 00000001 00000000 c004a688 c909fbdc 00000005
[   21.430204] fba0: c0530e34 00000000 c07c598c c909fc98 00000000 00000064 c909fbe4 c909fbc8
[   21.443153] fbc0: c0530ee4 c0530a90 c07c593c 00000005 c0530e34 00000000 c909fc94 c909fbe8
[   21.456116] fbe0: c0009204 c0530e40 c07c3928 00000000 c909fc1c c909fc00 c0044424 c00b31c8
[   21.469082] fc00: ffffffff 00000000 c901c780 000004e0 c909fc5c c909fc20 c085aea0 c909fc7c
[   21.482044] fc20: c085aea0 c909fc5c c909fc54 c909fc38 c00638d4 c0063978 c909fc7c a0000013
[   21.494991] fc40: 00000001 ffff92ed c909fc74 c909fc58 c00639b0 c00b31c8 c052d16c a0000013
[   21.507948] fc60: a0000013 c909fc7c c909fcd4 c909fc78 c052f4a0 bf0f1840 60000013 ffffffff
[   21.520909] fc80: c909fccc 00000000 c909fcfc c909fc98 c053039c c00091cc 0000000d ca463084
[   21.533875] fca0: 0000015f 00000000 0000014d 0000000a 0000015f c90c0160 00000000 00000000
[   21.546835] fcc0: 00000064 c909fcfc ca463096 c909fce0 00000003 bf0f1840 60000013 ffffffff
[   21.559777] fce0: c90c0160 0000015f 00000411 ca46300c c909fd84 c909fd00 bf0f2694 bf0f1748
[   21.572740] fd00: 00000000 00000411 00000000 00000000 00000000 00000000 00000000 00000000
[   21.585702] fd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   21.598664] fd40: 00000000 00000000 00000000 00000000 00000000 00000000 ca463000 00000000
[   21.611614] fd60: 00000000 c90c0160 ca463084 00000064 00000411 ca46300c c909fdec c909fd88
[   21.624569] fd80: bf196738 bf0f262c ca46300c c90c0160 00000000 00000000 00000411 00000064
[   21.637534] fda0: ca463084 0000015f ffffee6c 000000d0 ca462400 bf19ea50 c909fdec c909fdc8
[   21.650497] fdc0: bf19ea50 ca463004 ca463000 ca462400 00000000 c90c0160 ca48e234 ca48e000
[   21.663455] fde0: c909fe14 c909fdf0 bf197294 bf19667c c909fe98 c90c0320 c909feb0 c90c0320
[   21.676406] fe00: ca462000 ca462400 c909fe64 c909fe18 bf197524 bf19722c ca741b70 c0049938
[   21.689376] fe20: c909fe64 c909fe30 c0049938 c005341c c0073574 c001f59c ffffffff 00000013
[   21.702338] fe40: c90b8000 00000000 00000000 00000000 00000001 c9182511 c909fe7c c909fe68
[   21.715308] fe60: bf19ef9c bf197478 c91824e0 c90ba08c c909fef4 c909fe80 bf19f180 bf19ef60
[   21.728258] fe80: 0000000b c003ebc4 ffffffff 00000000 c90b8000 c90ba09c 00000002 00000013
[   21.741222] fea0: 00000000 00000001 00000000 00000000 167f4e20 6c77a557 00000030 00000000
[   21.754189] fec0: 00000000 00000000 cb321600 c90ba08c ca5b5840 c07ca6d8 cb632d00 00000000
[   21.767154] fee0: 00000000 00000004 c909ff34 c909fef8 c00387ac bf19f004 c07ca6d8 ca5b5840
[   21.780113] ff00: ca5b5858 00000008 c07ca6d8 c07ca6d8 c07ca6e8 ca5b5840 ca5b5858 00000008
[   21.793059] ff20: c07ca6d8 00000004 c909ff64 c909ff38 c0038b88 c00386a8 ca741b40 ca5da280
[   21.806020] ff40: 00000000 ca5b5840 c0038a2c 00000000 00000000 00000000 c909ffac c909ff68
[   21.818987] ff60: c003de24 c0038a38 c909ff94 00000000 c0044424 ca5b5840 00000000 c909ff7c
[   21.831954] ff80: c909ff7c 00000001 c909ff88 c909ff88 ca5da280 c003dd44 00000000 00000000
[   21.844902] ffa0: 00000000 c909ffb0 c000f5d8 c003dd50 00000000 00000000 00000000 00000000
[   21.857858] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   21.870823] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   21.883820] [<c003e2ec>] (kthread_data) from [<c003992c>] (wq_worker_sleeping+0x1c/0xcc)
[   21.896734] [<c003992c>] (wq_worker_sleeping) from [<c052cfa0>] (__schedule+0x3ec/0x56c)
[   21.909610] [<c052cfa0>] (__schedule) from [<c052d16c>] (schedule+0x4c/0xa4)
[   21.919135] [<c052d16c>] (schedule) from [<c0025ae0>] (do_exit+0x8b4/0x958)
[   21.928548] [<c0025ae0>] (do_exit) from [<c0013a64>] (die+0x184/0x374)
[   21.937508] [<c0013a64>] (die) from [<c0528120>] (__do_kernel_fault.part.0+0x64/0x84)
[   21.949983] [<c0528120>] (__do_kernel_fault.part.0) from [<c0530ca4>] (do_page_fault+0x220/0x3b0)
[   21.963475] [<c0530ca4>] (do_page_fault) from [<c0009204>] (do_DataAbort+0x44/0xc4)
[   21.975706] [<c0009204>] (do_DataAbort) from [<c053039c>] (__dabt_svc+0x3c/0x60)
[   21.987652] Exception stack(0xc909f9c8 to 0xc909fa10)
[   21.994975] f9c0:                   ca741b40 00000000 00000400 00000000 00000000 cb0c0000
[   22.007581] f9e0: ca741e10 c909faa0 ca741b40 00000020 c07cafc8 c909fa1c c909fa20 c909fa10
[   22.020158] fa00: c003992c c003e2ec 20000093 ffffffff
[   22.027438] [<c053039c>] (__dabt_svc) from [<c003e2ec>] (kthread_data+0x18/0x20)
[   22.039181] [<c003e2ec>] (kthread_data) from [<c003992c>] (wq_worker_sleeping+0x1c/0xcc)
[   22.051612] [<c003992c>] (wq_worker_sleeping) from [<c052cfa0>] (__schedule+0x3ec/0x56c)
[   22.064115] [<c052cfa0>] (__schedule) from [<c052d16c>] (schedule+0x4c/0xa4)
[   22.073469] [<c052d16c>] (schedule) from [<c0025858>] (do_exit+0x62c/0x958)
[   22.082727] [<c0025858>] (do_exit) from [<c0013a64>] (die+0x184/0x374)
[   22.091521] [<c0013a64>] (die) from [<c0528120>] (__do_kernel_fault.part.0+0x64/0x84)
[   22.103714] [<c0528120>] (__do_kernel_fault.part.0) from [<c0530ca4>] (do_page_fault+0x220/0x3b0)
[   22.116959] [<c0530ca4>] (do_page_fault) from [<c0530ee4>] (do_translation_fault+0xb0/0xb8)
[   22.129677] [<c0530ee4>] (do_translation_fault) from [<c0009204>] (do_DataAbort+0x44/0xc4)
[   22.142368] [<c0009204>] (do_DataAbort) from [<c053039c>] (__dabt_svc+0x3c/0x60)
[   22.154199] Exception stack(0xc909fc98 to 0xc909fce0)
[   22.161485] fc80:                                                       0000000d ca463084
[   22.173970] fca0: 0000015f 00000000 0000014d 0000000a 0000015f c90c0160 00000000 00000000
[   22.186408] fcc0: 00000064 c909fcfc ca463096 c909fce0 00000003 bf0f1840 60000013 ffffffff
[   22.199232] [<c053039c>] (__dabt_svc) from [<bf0f1840>] (cfg80211_get_bss_channel+0x104/0x140 [cfg80211])
[   22.213696] [<bf0f1840>] (cfg80211_get_bss_channel [cfg80211]) from [<bf0f2694>] (cfg80211_inform_bss_width+0x74/0x210 [cfg80211])
[   22.230371] [<bf0f2694>] (cfg80211_inform_bss_width [cfg80211]) from [<bf196738>] (brcmf_inform_single_bss+0xc8/0x140 [brcmfmac])
[   22.246749] [<bf196738>] (brcmf_inform_single_bss [brcmfmac]) from [<bf197294>] (brcmf_update_bss_info.part.8+0x74/0x12c [brcmfmac])
[   22.263363] [<bf197294>] (brcmf_update_bss_info.part.8 [brcmfmac]) from [<bf197524>] (brcmf_notify_roaming_status+0xb8/0x1c0 [brcmfmac])
[   22.280343] [<bf197524>] (brcmf_notify_roaming_status [brcmfmac]) from [<bf19ef9c>] (brcmf_fweh_call_event_handler+0x48/0xa4 [brcmfmac])
[   22.297312] [<bf19ef9c>] (brcmf_fweh_call_event_handler [brcmfmac]) from [<bf19f180>] (brcmf_fweh_event_worker+0x188/0x370 [brcmfmac])
[   22.314057] [<bf19f180>] (brcmf_fweh_event_worker [brcmfmac]) from [<c00387ac>] (process_one_work+0x110/0x390)
[   22.328732] [<c00387ac>] (process_one_work) from [<c0038b88>] (worker_thread+0x15c/0x4e4)
[   22.341589] [<c0038b88>] (worker_thread) from [<c003de24>] (kthread+0xe0/0xfc)
[   22.351230] [<c003de24>] (kthread) from [<c000f5d8>] (ret_from_fork+0x14/0x3c)
[   22.360821] Code: e24cb004 e52de004 e8bd4000 e5903328 (e5130010) 
[   22.369238] ---[ end trace 073638cd1f666cba ]---
[   22.376120] Fixing recursive fault but reboot is needed!
[   22.383706] Unable to handle kernel paging request at virtual address fffffff0
[   22.393179] pgd = c0004000
[   22.398064] [fffffff0] *pgd=0b7fa821, *pte=00000000, *ppte=00000000
[   22.406601] Internal error: Oops: 17 [#4] ARM
[   22.413107] Modules linked in: brcmfmac brcmutil cfg80211 rfkill bcm2835_gpiomem snd_bcm2835 snd_pcm snd_timer snd uio_pdrv_genirq uio ipv6
[   22.430230] CPU: 0 PID: 176 Comm: kworker/0:4 Tainted: G      D         4.1.15+ #830
[   22.442160] Hardware name: BCM2708
[   22.447629] task: ca741b40 ti: c909e000 task.ti: c909e000
[   22.455090] PC is at kthread_data+0x18/0x20
[   22.461287] LR is at wq_worker_sleeping+0x1c/0xcc
[   22.467948] pc : [<c003e2ec>]    lr : [<c003992c>]    psr: 20000193
[   22.467948] sp : c909f4b0  ip : c909f4c0  fp : c909f4bc
[   22.483206] r10: c07cafc8  r9 : c003e2ee  r8 : ca741b40
[   22.490255] r7 : 0000000b  r6 : 60000193  r5 : c07c5570  r4 : 00000000
[   22.498597] r3 : 00000000  r2 : fffffc00  r1 : 00000000  r0 : ca741b40
[   22.506922] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   22.515961] Control: 00c5387d  Table: 0a4e0008  DAC: 00000015
[   22.523514] Process kworker/0:4 (pid: 176, stack limit = 0xc909e188)
[   22.531707] Stack: (0xc909f4b0 to 0xc90a0000)
[   22.537863] f4a0:                                     c909f4d4 c909f4c0 c003992c c003e2e0
[   22.549565] f4c0: 00000020 ca741e94 c909f514 c909f4d8 c052cfa0 c003991c c003e2ee ca741b40
[   22.561314] f4e0: c909f504 c909f4f0 c00592e0 c909e000 c07c5570 60000193 0000000b 00000001
[   22.573117] f500: c003e2ee ca741b40 c909f52c c909f518 c052d16c c052cbc0 ca741b40 0000000b
[   22.585023] f520: c909f574 c909f530 c0025ae0 c052d12c 0000000b c07ccb88 c909f564 c08383c4
[   22.597107] f540: c07c5570 60000193 0000000b c08383c4 c07c5570 60000193 0000000b 00000001
[   22.609378] f560: c003e2ee 60000193 c909f5f4 c909f578 c0013a64 c0025238 c909e188 0000000b
[   22.621819] f580: c003e2ee bf000000 00000008 00000000 650592e0 62633432 20343030 64323565
[   22.634436] f5a0: 34303065 62386520 30303464 35652030 33333039 28203832 33313565 30313030
[   22.647148] f5c0: c0002029 c0528914 c069f1b0 fffffff0 00000017 00000000 c909f718 ca741b40
[   22.659954] f5e0: c003e2ee c07cafc8 c909f60c c909f5f8 c0528120 c00138ec c909f718 00000000
[   22.672886] f600: c909f664 c909f610 c0530ca4 c05280c8 c02fce0c 00000720 00000000 00000007
[   22.685857] f620: c909f664 c909f630 c02f75a8 c02fce18 00000007 00000000 0000003b 00000017
[   22.698827] f640: c0530a84 fffffff0 c07c59ac c909f718 c003e2ee c07cafc8 c909f714 c909f668
[   22.711780] f660: c0009204 c0530a90 cb11dc40 80000193 00000001 00000101 c909f69c c909f688
[   22.724754] f680: c0436338 c0434de8 cb134010 60000193 c909f6c4 c909f6a0 c0333b1c c0436308
[   22.737725] f6a0: c081618c c0839ff8 0000003c c0049908 42cac140 00000000 3b9323d5 00000002
[   22.750698] f6c0: ca741b70 c0049938 c909f70c c909f6d8 c0049938 c005341c c0073574 c001f59c
[   22.763661] f6e0: ffffffff c004a5c0 00000001 c004a5c8 00000001 c003e2ec 20000193 ffffffff
[   22.776618] f700: c909f74c ca741b40 c909f76c c909f718 c053039c c00091cc ca741b40 00000000
[   22.789585] f720: 00000000 00000000 00000000 c07c5570 60000193 0000000b ca741b40 c003e2ee
[   22.802556] f740: c07cafc8 c909f76c c909f770 c909f760 c003992c c003e2ec 20000193 ffffffff
[   22.815524] f760: c909f784 c909f770 c003992c c003e2e0 00000020 ca741e94 c909f7c4 c909f788
[   22.828469] f780: c052cfa0 c003991c c003e2ee ca741b40 c909f7b4 c909f7a0 c00592e0 c909e000
[   22.841427] f7a0: c07c5570 60000193 0000000b 00000001 c003e2ee ca741b40 c909f7dc c909f7c8
[   22.854390] f7c0: c052d16c c052cbc0 ca741b40 0000000b c909f824 c909f7e0 c0025ae0 c052d12c
[   22.867350] f7e0: 0000000b c07ccb88 c909f814 c08383c4 c07c5570 60000193 0000000b c08383c4
[   22.880306] f800: c07c5570 60000193 0000000b 00000001 c003e2ee 60000193 c909f8a4 c909f828
[   22.893266] f820: c0013a64 c0025238 c909e188 0000000b 00000020 bf000000 00000008 00000000
[   22.906239] f840: 650592e0 62633432 20343030 64323565 34303065 62386520 30303464 35652030
[   22.919221] f860: 33333039 28203832 33313565 30313030 c0002029 c0528914 c069f1b0 fffffff0
[   22.932192] f880: 00000017 00000000 c909f9c8 ca741b40 00000020 c07cafc8 c909f8bc c909f8a8
[   22.945151] f8a0: c0528120 c00138ec c909f9c8 00000000 c909f914 c909f8c0 c0530ca4 c05280c8
[   22.958122] f8c0: c00603c4 c00b31c8 c017a994 caf697d0 c053c790 c0049908 0001b580 00000000
[   22.971099] f8e0: f8c86295 00000001 ca741b70 00000017 c0530a84 fffffff0 c07c59ac c909f9c8
[   22.984080] f900: 00000020 c07cafc8 c909f9c4 c909f918 c0009204 c0530a90 00000004 c0049e5c
[   22.997049] f920: cb0c1b70 c004a8e8 c909f97c cb0c1b70 ca741b70 00000000 ca741b40 c0049e70
[   23.010018] f940: cb0c1b70 c0049eb8 c909f984 c909f958 c0049eb8 c00455ec 00000004 c07cafc8
[   23.022996] f960: ca741b40 c07cafc8 60000093 cb0c1b40 00000000 00000020 c909f99c c909f988
[   23.035971] f980: c0045a3c c004a5fc c07cafc8 cb0c1b40 c909f9b4 c004a5c0 00000001 c004a5c8
[   23.048939] f9a0: 00000001 c003e2ec 20000093 ffffffff c909f9fc ca741b40 c909fa1c c909f9c8
[   23.061895] f9c0: c053039c c00091cc ca741b40 00000000 00000400 00000000 00000000 cb0c0000
[   23.074872] f9e0: ca741e10 c909faa0 ca741b40 00000020 c07cafc8 c909fa1c c909fa20 c909fa10
[   23.087851] fa00: c003992c c003e2ec 20000093 ffffffff c909fa34 c909fa20 c003992c c003e2e0
[   23.100830] fa20: 00000020 ca741e94 c909fa74 c909fa38 c052cfa0 c003991c c0024134 c00603e8
[   23.113796] fa40: c0535dd0 00000001 c909fa64 c909e000 cb0c0000 ca741e10 c909faa0 00000001
[   23.126760] fa60: 00000020 ca741b40 c909fa8c c909fa78 c052d16c c052cbc0 0420806c c909f7b4
[   23.139735] fa80: c909fad4 c909fa90 c0025858 c052d12c 00000000 00000001 c909fac4 c08383c4
[   23.152714] faa0: c909faa0 c909faa0 0000000b c08383c4 c07c5570 60000113 0000000b 00000001
[   23.165688] fac0: bf0f1842 60000113 c909fb54 c909fad8 c0013a64 c0025238 c909e188 0000000b
[   23.178648] fae0: 00000000 00000000 00000008 00000000 300592e0 66666661 20646466 30353365
[   23.191624] fb00: 31303030 64353020 30303063 61312032 66666666 28206164 33393565 30303031
[   23.204599] fb20: c0002029 c0528914 c069f1b0 00000000 00000005 00000000 c909fc98 ca741b40
[   23.217571] fb40: 00000000 00000064 c909fb6c c909fb58 c0528120 c00138ec c909fc98 00000000
[   23.230530] fb60: c909fbc4 c909fb70 c0530ca4 c05280c8 c0073574 c001f59c ffffffff c004a5c0
[   23.243488] fb80: 00000001 c004a5c8 00000001 00000001 00000000 c004a688 c909fbdc 00000005
[   23.256461] fba0: c0530e34 00000000 c07c598c c909fc98 00000000 00000064 c909fbe4 c909fbc8
[   23.269433] fbc0: c0530ee4 c0530a90 c07c593c 00000005 c0530e34 00000000 c909fc94 c909fbe8
[   23.282400] fbe0: c0009204 c0530e40 c07c3928 00000000 c909fc1c c909fc00 c0044424 c00b31c8
[   23.295354] fc00: ffffffff 00000000 c901c780 000004e0 c909fc5c c909fc20 c085aea0 c909fc7c
[   23.308316] fc20: c085aea0 c909fc5c c909fc54 c909fc38 c00638d4 c0063978 c909fc7c a0000013
[   23.321287] fc40: 00000001 ffff92ed c909fc74 c909fc58 c00639b0 c00b31c8 c052d16c a0000013
[   23.334252] fc60: a0000013 c909fc7c c909fcd4 c909fc78 c052f4a0 bf0f1840 60000013 ffffffff
[   23.347204] fc80: c909fccc 00000000 c909fcfc c909fc98 c053039c c00091cc 0000000d ca463084
[   23.360158] fca0: 0000015f 00000000 0000014d 0000000a 0000015f c90c0160 00000000 00000000
[   23.373121] fcc0: 00000064 c909fcfc ca463096 c909fce0 00000003 bf0f1840 60000013 ffffffff
[   23.386086] fce0: c90c0160 0000015f 00000411 ca46300c c909fd84 c909fd00 bf0f2694 bf0f1748
[   23.399047] fd00: 00000000 00000411 00000000 00000000 00000000 00000000 00000000 00000000
[   23.411993] fd20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   23.424956] fd40: 00000000 00000000 00000000 00000000 00000000 00000000 ca463000 00000000
[   23.437919] fd60: 00000000 c90c0160 ca463084 00000064 00000411 ca46300c c909fdec c909fd88
[   23.450883] fd80: bf196738 bf0f262c ca46300c c90c0160 00000000 00000000 00000411 00000064
[   23.463829] fda0: ca463084 0000015f ffffee6c 000000d0 ca462400 bf19ea50 c909fdec c909fdc8
[   23.476787] fdc0: bf19ea50 ca463004 ca463000 ca462400 00000000 c90c0160 ca48e234 ca48e000
[   23.489755] fde0: c909fe14 c909fdf0 bf197294 bf19667c c909fe98 c90c0320 c909feb0 c90c0320
[   23.502725] fe00: ca462000 ca462400 c909fe64 c909fe18 bf197524 bf19722c ca741b70 c0049938
[   23.515685] fe20: c909fe64 c909fe30 c0049938 c005341c c0073574 c001f59c ffffffff 00000013
[   23.528637] fe40: c90b8000 00000000 00000000 00000000 00000001 c9182511 c909fe7c c909fe68
[   23.541608] fe60: bf19ef9c bf197478 c91824e0 c90ba08c c909fef4 c909fe80 bf19f180 bf19ef60
[   23.554575] fe80: 0000000b c003ebc4 ffffffff 00000000 c90b8000 c90ba09c 00000002 00000013
[   23.567543] fea0: 00000000 00000001 00000000 00000000 167f4e20 6c77a557 00000030 00000000
[   23.580495] fec0: 00000000 00000000 cb321600 c90ba08c ca5b5840 c07ca6d8 cb632d00 00000000
[   23.593461] fee0: 00000000 00000004 c909ff34 c909fef8 c00387ac bf19f004 c07ca6d8 ca5b5840
[   23.606429] ff00: ca5b5858 00000008 c07ca6d8 c07ca6d8 c07ca6e8 ca5b5840 ca5b5858 00000008
[   23.619400] ff20: c07ca6d8 00000004 c909ff64 c909ff38 c0038b88 c00386a8 ca741b40 ca5da280
[   23.632367] ff40: 00000000 ca5b5840 c0038a2c 00000000 00000000 00000000 c909ffac c909ff68
[   23.645322] ff60: c003de24 c0038a38 c909ff94 00000000 c0044424 ca5b5840 00000000 c909ff7c
[   23.658309] ff80: c909ff7c 00000001 c909ff88 c909ff88 ca5da280 c003dd44 00000000 00000000
[   23.671273] ffa0: 00000000 c909ffb0 c000f5d8 c003dd50 00000000 00000000 00000000 00000000
[   23.684242] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   23.697191] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   23.710176] [<c003e2ec>] (kthread_data) from [<c003992c>] (wq_worker_sleeping+0x1c/0xcc)
[   23.723094] [<c003992c>] (wq_worker_sleeping) from [<c052cfa0>] (__schedule+0x3ec/0x56c)
[   23.735986] [<c052cfa0>] (__schedule) from [<c052d16c>] (schedule+0x4c/0xa4)
[   23.745501] [<c052d16c>] (schedule) from [<c0025ae0>] (do_exit+0x8b4/0x958)
[   23.754914] [<c0025ae0>] (do_exit) from [<c0013a64>] (die+0x184/0x374)
[   23.763874] [<c0013a64>] (die) from [<c0528120>] (__do_kernel_fault.part.0+0x64/0x84)
[   23.776340] [<c0528120>] (__do_kernel_fault.part.0) from [<c0530ca4>] (do_page_fault+0x220/0x3b0)
[   23.789839] [<c0530ca4>] (do_page_fault) from [<c0009204>] (do_DataAbort+0x44/0xc4)
[   23.802087] [<c0009204>] (do_DataAbort) from [<c053039c>] (__dabt_svc+0x3c/0x60)
[   23.814020] Exception stack(0xc909f718 to 0xc909f760)
[   23.821335] f700:                                                       ca741b40 00000000
[   23.833850] f720: 00000000 00000000 00000000 c07c5570 60000193 0000000b ca741b40 c003e2ee
[   23.846275] f740: c07cafc8 c909f76c c909f770 c909f760 c003992c c003e2ec 20000193 ffffffff
[   23.858749] [<c053039c>] (__dabt_svc) from [<c003e2ec>] (kthread_data+0x18/0x20)
[   23.870456] [<c003e2ec>] (kthread_data) from [<c003992c>] (wq_worker_sleeping+0x1c/0xcc)
[   23.882886] [<c003992c>] (wq_worker_sleeping) from [<c052cfa0>] (__schedule+0x3ec/0x56c)
[   23.895387] [<c052cfa0>] (__schedule) from [<c052d16c>] (schedule+0x4c/0xa4)
[   23.904731] [<c052d16c>] (schedule) from [<c0025ae0>] (do_exit+0x8b4/0x958)
[   23.913975] [<c0025ae0>] (do_exit) from [<c0013a64>] (die+0x184/0x374)
[   23.922768] [<c0013a64>] (die) from [<c0528120>] (__do_kernel_fault.part.0+0x64/0x84)
[   23.934922] [<c0528120>] (__do_kernel_fault.part.0) from [<c0530ca4>] (do_page_fault+0x220/0x3b0)
[   23.948102] [<c0530ca4>] (do_page_fault) from [<c0009204>] (do_DataAbort+0x44/0xc4)
[   23.960148] [<c0009204>] (do_DataAbort) from [<c053039c>] (__dabt_svc+0x3c/0x60)
[   23.972077] Exception stack(0xc909f9c8 to 0xc909fa10)
[   23.979389] f9c0:                   ca741b40 00000000 00000400 00000000 00000000 cb0c0000
[   23.991976] f9e0: ca741e10 c909faa0 ca741b40 00000020 c07cafc8 c909fa1c c909fa20 c909fa10
[   24.004539] fa00: c003992c c003e2ec 20000093 ffffffff
[   24.011819] [<c053039c>] (__dabt_svc) from [<c003e2ec>] (kthread_data+0x18/0x20)
[   24.023562] [<c003e2ec>] (kthread_data) from [<c003992c>] (wq_worker_sleeping+0x1c/0xcc)

[popcornmix]

It would be useful to be really sure that wheezy doesn't have this problem. It sounds more like a hardware than a software issue. Testing if this affects B+/Pi2 could be interesting. If you believe an older kernel didn't have this issue, can you identify the point where it occurred? You can downgrade to older kernel/firmware with sudo rpi-update <hash> Use hashes from https://github.com/Hexxeh/rpi-firmware/commits/master (the hash is the end of the URL when you click on a link). Identify the exact build that introduced the issue and we can look into the changes. Best to test this on the A+ as the Pi0 only has recent support.

[ali1234]

Bisected with model A+ and a USB extension cable. Good kernels were completely stable and able to download the next kernel for testing. Bad kernels crashed during boot 100% of the time.

# first bad commit: [6d25078b7cb361052ae280d552561d7250d33f5b] kernel: Bump to 4.0.5

I bisected from:

good: [1993965f04b2b025e1fc088e09e34d5cc4dd833c] kernel: Bump to 3.12.34

to HEAD.

[ali1234]

When I reported this one I had two access points with the same SSID. I think what happened is one of them was on channel 13, and touching ground was affecting the signal strengths, causing a roam event. It then roamed on to the channel 13 AP and crashed.

Therefore, I think this one is also fixed in 4.4 kernel.