The NCS2 freezes while inferencing the face recognition demo and it looks like the NCS2 was half-dead at this time

What happened?

I was using the face recognition demo from open_model_zoo using NCS2, and in the middle of inference, it stopped functioning and the opencv output frame freezes at the last frame.
I'm using raspberry pi with buster version, here is the output of uname -a:

At the time it freezes, when I type lsusb in terminal, I can see that the NCS2 has reported an incomplete device name (Intel):

Normally, it should display the name Intel Movidius MyriadX

From dmesg, something not right was found: from the image below we can see that it show a message USB disconnect, device number 5 and then the NCS2 connected to usb port with number 6:

Here is the full log of dmesg:

pi@raspberrypi:~ $ dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.10.103-v7l+ (dom@buildbot) (arm-linux-gnueabihf-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1529 SMP Tue Mar 8 12:24:00 GMT 2022
[    0.000000] CPU: ARMv7 Processor [410fd083] revision 3 (ARMv7), cr=30c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi Compute Module 4 Rev 1.0
[    0.000000] random: fast init done
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] Reserved memory: created CMA memory pool at 0x000000001ac00000, size 320 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000000000-0x000000002fffffff]
[    0.000000]   Normal   empty
[    0.000000]   HighMem  [mem 0x0000000030000000-0x00000000fbffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x0000000037ffffff]
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000fbffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000fbffffff]
[    0.000000] On node 0 totalpages: 999424
[    0.000000]   DMA zone: 1728 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 196608 pages, LIFO batch:63
[    0.000000]   HighMem zone: 802816 pages, LIFO batch:63
[    0.000000] percpu: Embedded 20 pages/cpu s50828 r8192 d22900 u81920
[    0.000000] pcpu-alloc: s50828 r8192 d22900 u81920 alloc=20*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 997696
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1  smsc95xx.macaddr=E4:5F:01:91:51:17 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=tty1 root=PARTUUID=65b31224-02 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] software IO TLB: mapped [mem 0x0000000014890000-0x0000000018890000] (64MB)
[    0.000000] Memory: 3548364K/3997696K available (10240K kernel code, 1366K rwdata, 3196K rodata, 2048K init, 882K bss, 121652K reserved, 327680K cma-reserved, 3211264K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 34355 entries in 101 pages
[    0.000000] ftrace: allocated 101 pages with 4 groups
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000]  Rude variant of Tasks RCU enabled.
[    0.000000]  Tracing variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x3c8/0x59c with crng_init=1
[    0.000008] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 2147483647500ns
[    0.000027] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275 ns
[    0.000086] bcm2835: system timer (irq = 25)
[    0.000743] arch_timer: cp15 timer(s) running at 54.00MHz (phys).
[    0.000761] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xc743ce346, max_idle_ns: 440795203123 ns
[    0.000778] sched_clock: 56 bits at 54MHz, resolution 18ns, wraps every 4398046511102ns
[    0.000793] Switching to timer-based delay loop, resolution 18ns
[    0.001048] Console: colour dummy device 80x30
[    0.001114] printk: console [tty1] enabled
[    0.001170] Calibrating delay loop (skipped), value calculated using timer frequency.. 108.00 BogoMIPS (lpj=540000)
[    0.001203] pid_max: default: 32768 minimum: 301
[    0.001367] LSM: Security Framework initializing
[    0.001549] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.001574] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.003034] cgroup: Disabling memory control group subsystem
[    0.003265] CPU: Testing write buffer coherency: ok
[    0.003720] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.004915] Setting up static identity map for 0x200000 - 0x20003c
[    0.005111] rcu: Hierarchical SRCU implementation.
[    0.006021] smp: Bringing up secondary CPUs ...
[    0.007200] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.008535] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.009797] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.009955] smp: Brought up 1 node, 4 CPUs
[    0.009976] SMP: Total of 4 processors activated (432.00 BogoMIPS).
[    0.009991] CPU: All CPU(s) started in HYP mode.
[    0.010005] CPU: Virtualization extensions available.
[    0.010923] devtmpfs: initialized
[    0.025376] VFP support v0.3: implementor 41 architecture 3 part 40 variant 8 rev 0
[    0.025594] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.025624] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.033885] pinctrl core: initialized pinctrl subsystem
[    0.034956] NET: Registered protocol family 16
[    0.038767] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.039535] audit: initializing netlink subsys (disabled)
[    0.039792] audit: type=2000 audit(0.030:1): state=initialized audit_enabled=0 res=1
[    0.040349] thermal_sys: Registered thermal governor 'step_wise'
[    0.041140] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.041158] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.041569] Serial: AMBA PL011 UART driver
[    0.080699] bcm2835-mbox fe00b880.mailbox: mailbox enabled
[    0.100861] raspberrypi-firmware soc:firmware: Attached to firmware from 2021-12-01T15:02:46, variant start_x
[    0.110874] raspberrypi-firmware soc:firmware: Firmware hash is 71bd3109023a0c8575585ba87cbb374d2eeb038f
[    0.152063] Kprobes globally optimized
[    0.157444] bcm2835-dma fe007000.dma: DMA legacy API manager, dmachans=0x1
[    0.161715] vgaarb: loaded
[    0.162156] SCSI subsystem initialized
[    0.162394] usbcore: registered new interface driver usbfs
[    0.162453] usbcore: registered new interface driver hub
[    0.162526] usbcore: registered new device driver usb
[    0.162899] usb_phy_generic phy: supply vcc not found, using dummy regulator
[    0.164857] clocksource: Switched to clocksource arch_sys_counter
[    1.110239] VFS: Disk quotas dquot_6.6.0
[    1.110331] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    1.110491] FS-Cache: Loaded
[    1.110695] CacheFiles: Loaded
[    1.111683] simple-framebuffer 3ea40000.framebuffer: framebuffer at 0x3ea40000, 0x177000 bytes, mapped to 0x(ptrval)
[    1.111703] simple-framebuffer 3ea40000.framebuffer: format=a8r8g8b8, mode=800x480x32, linelength=3200
[    1.112123] Console: switching to colour frame buffer device 100x30
[    1.114051] simple-framebuffer 3ea40000.framebuffer: fb0: simplefb registered!
[    1.124202] NET: Registered protocol family 2
[    1.124438] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    1.125966] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear)
[    1.126101] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    1.126165] TCP bind hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    1.126232] TCP: Hash tables configured (established 8192 bind 8192)
[    1.126393] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    1.126429] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    1.126658] NET: Registered protocol family 1
[    1.127775] RPC: Registered named UNIX socket transport module.
[    1.127791] RPC: Registered udp transport module.
[    1.127806] RPC: Registered tcp transport module.
[    1.127821] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.127844] PCI: CLS 0 bytes, default 64
[    1.130931] Initialise system trusted keyrings
[    1.131165] workingset: timestamp_bits=14 max_order=20 bucket_order=6
[    1.139633] zbud: loaded
[    1.141393] FS-Cache: Netfs 'nfs' registered for caching
[    1.142129] NFS: Registering the id_resolver key type
[    1.142198] Key type id_resolver registered
[    1.142214] Key type id_legacy registered
[    1.142346] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.142362] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    1.143417] Key type asymmetric registered
[    1.143435] Asymmetric key parser 'x509' registered
[    1.143637] bounce: pool size: 64 pages
[    1.143680] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    1.143886] io scheduler mq-deadline registered
[    1.143903] io scheduler kyber registered
[    1.148393] gpio-507 (ant1): hogged as output/high
[    1.149759] gpio-511 (ant2): hogged as output/low
[    1.151181] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges:
[    1.151212] brcm-pcie fd500000.pcie:   No bus range found for /scb/pcie@7d500000, using [bus 00-ff]
[    1.151292] brcm-pcie fd500000.pcie:      MEM 0x0600000000..0x063fffffff -> 0x00c0000000
[    1.151381] brcm-pcie fd500000.pcie:   IB MEM 0x0000000000..0x00ffffffff -> 0x0400000000
[    1.744878] brcm-pcie fd500000.pcie: link down
[    1.750834] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled
[    1.751718] bcm2835-aux-uart fe215040.serial: there is not valid maps for state default
[    1.754353] iproc-rng200 fe104000.rng: hwrng registered
[    1.754690] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[    1.755639] gpiomem-bcm2835 fe200000.gpiomem: Initialised: Registers at 0xfe200000
[    1.767742] brd: module loaded
[    1.780017] loop: module loaded
[    1.781777] Loading iSCSI transport class v2.0-870.
[    1.786809] bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000
[    1.905002] unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus
[    1.906166] usbcore: registered new interface driver r8152
[    1.906233] usbcore: registered new interface driver lan78xx
[    1.906294] usbcore: registered new interface driver smsc95xx
[    1.906936] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    1.907298] dwc_otg: FIQ enabled
[    1.907312] dwc_otg: NAK holdoff enabled
[    1.907327] dwc_otg: FIQ split-transaction FSM enabled
[    1.907345] Module dwc_common_port init
[    1.907786] usbcore: registered new interface driver uas
[    1.907852] usbcore: registered new interface driver usb-storage
[    1.908063] mousedev: PS/2 mouse device common for all mice
[    1.909783] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    1.913183] sdhci: Secure Digital Host Controller Interface driver
[    1.913199] sdhci: Copyright(c) Pierre Ossman
[    1.913923] mmc-bcm2835 fe300000.mmcnr: could not get clk, deferring probe
[    1.914582] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.917558] ledtrig-cpu: registered to indicate activity on CPUs
[    1.917904] hid: raw HID events driver (C) Jiri Kosina
[    1.918084] usbcore: registered new interface driver usbhid
[    1.918099] usbhid: USB HID core driver
[    1.924211] Initializing XFRM netlink socket
[    1.924255] NET: Registered protocol family 17
[    1.924368] Key type dns_resolver registered
[    1.924779] Registering SWP/SWPB emulation handler
[    1.924994] registered taskstats version 1
[    1.925022] Loading compiled-in X.509 certificates
[    1.925975] Key type ._fscrypt registered
[    1.925991] Key type .fscrypt registered
[    1.926006] Key type fscrypt-provisioning registered
[    1.937300] uart-pl011 fe201000.serial: there is not valid maps for state default
[    1.937617] uart-pl011 fe201000.serial: cts_event_workaround enabled
[    1.937689] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 36, base_baud = 0) is a PL011 rev2
[    1.938728] fe201600.serial: ttyAMA1 at MMIO 0xfe201600 (irq = 36, base_baud = 0) is a PL011 rev2
[    1.939774] fe201a00.serial: ttyAMA2 at MMIO 0xfe201a00 (irq = 36, base_baud = 0) is a PL011 rev2
[    1.946199] bcm2835-aux-uart fe215040.serial: there is not valid maps for state default
[    1.947102] fe215040.serial: ttyS0 at MMIO 0xfe215040 (irq = 38, base_baud = 62500000) is a 16550
[    1.948084] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    1.949166] mmc-bcm2835 fe300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    1.949183] mmc-bcm2835 fe300000.mmcnr: DMA channel allocated
[    1.978278] of_cfs_init
[    1.978542] of_cfs_init: OK
[    1.995005] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    1.996716] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    1.998425] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    2.001487] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    2.003197] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    2.015337] mmc0: SDHCI controller on fe340000.mmc [fe340000.mmc] using ADMA
[    2.016247] Waiting for root device PARTUUID=65b31224-02...
[    2.068671] mmc1: new high speed SDIO card at address 0001
[    2.084126] mmc0: new DDR MMC card at address 0001
[    2.085095] mmcblk0: mmc0:0001 BJTD4R 29.1 GiB
[    2.085542] mmcblk0boot0: mmc0:0001 BJTD4R partition 1 4.00 MiB
[    2.086005] mmcblk0boot1: mmc0:0001 BJTD4R partition 2 4.00 MiB
[    2.086205] mmcblk0rpmb: mmc0:0001 BJTD4R partition 3 4.00 MiB, chardev (244:0)
[    2.088147]  mmcblk0: p1 p2
[    2.112217] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.112290] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    2.112833] devtmpfs: mounted
[    2.122934] Freeing unused kernel memory: 2048K
[    2.185196] Run /sbin/init as init process
[    2.185211]   with arguments:
[    2.185225]     /sbin/init
[    2.185240]     splash
[    2.185254]   with environment:
[    2.185268]     HOME=/
[    2.185282]     TERM=linux
[    2.426445] systemd[1]: System time before build time, advancing clock.
[    2.501733] NET: Registered protocol family 10
[    2.503231] Segment Routing with IPv6
[    2.543648] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    2.544707] systemd[1]: Detected architecture arm.
[    2.589336] systemd[1]: Set hostname to <raspberrypi>.
[    3.233799] random: systemd: uninitialized urandom read (16 bytes read)
[    3.243997] random: systemd: uninitialized urandom read (16 bytes read)
[    3.245337] systemd[1]: Listening on Journal Socket.
[    3.245722] random: systemd: uninitialized urandom read (16 bytes read)
[    3.246087] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    3.254202] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[    3.261692] systemd[1]: Starting Restore / save the current clock...
[    3.268965] systemd[1]: Mounting Kernel Debug File System...
[    3.276152] systemd[1]: Mounting RPC Pipe File System...
[    3.284146] systemd[1]: Starting Set the console keyboard layout...
[    3.400413] i2c /dev entries driver
[    3.778438] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    3.910261] systemd-journald[132]: Received request to flush runtime journal from PID 1
[    4.544996] rpivid-mem feb00000.hevc-decoder: rpivid-hevcmem initialised: Registers at 0xfeb00000 length 0x00010000
[    4.545551] rpivid-mem feb10000.rpivid-local-intc: rpivid-intcmem initialised: Registers at 0xfeb10000 length 0x00001000
[    4.546073] rpivid-mem feb20000.h264-decoder: rpivid-h264mem initialised: Registers at 0xfeb20000 length 0x00010000
[    4.546611] rpivid-mem feb30000.vp9-decoder: rpivid-vp9mem initialised: Registers at 0xfeb30000 length 0x00010000
[    4.651893] mc: Linux media interface: v0.10
[    4.672903] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[    4.680994] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[    4.681021] [vc_sm_connected_init]: start
[    4.737200] [vc_sm_connected_init]: installed successfully
[    4.738192] videodev: Linux video capture interface: v2.00
[    4.763263] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    4.768266] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    4.768377] bcm2835_audio bcm2835_audio: there is not valid maps for state default
[    4.768832] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    4.773070] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[    4.773726] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[    4.833279] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[    4.864750] checking generic (3ea40000 177000) vs hw (0 ffffffffffffffff)
[    4.864772] fb0: switching to vc4drmfb from simple
[    4.865511] Console: switching to colour dummy device 80x30
[    4.914115] vc4-drm gpu: bound fe600000.firmwarekms (ops vc4_fkms_ops [vc4])
[    4.925293] [drm] Initialized vc4 0.0.0 20140616 for gpu on minor 0
[    4.930117] Console: switching to colour frame buffer device 100x30
[    4.930173] vc4-drm gpu: [drm] fb0: vc4drmfb frame buffer device
[    4.951072] input: raspberrypi-ts as /devices/platform/soc/soc:firmware/soc:firmware:touchscreen/input/input0
[    5.055144] dwc2 fe980000.usb: supply vusb_d not found, using dummy regulator
[    5.055444] dwc2 fe980000.usb: supply vusb_a not found, using dummy regulator
[    5.142445] dwc2 fe980000.usb: DWC OTG Controller
[    5.142486] dwc2 fe980000.usb: new USB bus registered, assigned bus number 1
[    5.142554] dwc2 fe980000.usb: irq 40, io mem 0xfe980000
[    5.143456] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[    5.143478] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    5.143507] usb usb1: Product: DWC OTG Controller
[    5.143525] usb usb1: Manufacturer: Linux 5.10.103-v7l+ dwc2_hsotg
[    5.143542] usb usb1: SerialNumber: fe980000.usb
[    5.144318] [drm] Initialized v3d 1.0.0 20180419 for fec00000.v3d on minor 1
[    5.144606] hub 1-0:1.0: USB hub found
[    5.144684] hub 1-0:1.0: 1 port detected
[    5.263692] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    5.322120] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    5.428091] brcmfmac: F1 signature read @0x18000000=0x15264345
[    5.445713] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    5.448741] usbcore: registered new interface driver brcmfmac
[    5.504919] usb 1-1: new high-speed USB device number 2 using dwc2
[    5.710075] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    5.710196] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[    5.720521] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Jan  4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
[    5.756140] usb 1-1: New USB device found, idVendor=1a40, idProduct=0101, bcdDevice= 1.11
[    5.756164] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[    5.756182] usb 1-1: Product: USB 2.0 Hub
[    5.757049] hub 1-1:1.0: USB hub found
[    5.757184] hub 1-1:1.0: 4 ports detected
[    6.057209] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[    6.057256] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[    6.059695] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[    6.060239] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[    6.060306] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[    6.060841] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[    6.062180] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[    6.062871] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[    6.062899] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[    6.062924] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[    6.062947] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[    6.062969] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[    6.063576] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[    6.063666] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[    6.063704] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[    6.066155] bcm2835-codec bcm2835-codec: Device registered as /dev/video18
[    6.066201] bcm2835-codec bcm2835-codec: Loaded V4L2 image_fx
[    6.096279] bcm2835-v4l2-0: scene mode selected 0, was 0
[    6.096723] bcm2835-v4l2-0: V4L2 device registered as video0 - stills mode > 1280x720
[    6.101803] bcm2835-v4l2-0: Broadcom 2835 MMAL video capture ver 0.0.2 loaded.
[    6.195405] usb 1-1.1: new full-speed USB device number 3 using dwc2
[    6.427243] usb 1-1.1: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00
[    6.427266] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    6.427284] usb 1-1.1: Product: CP2102 USB to UART Bridge Controller
[    6.427301] usb 1-1.1: Manufacturer: Silicon Labs
[    6.427318] usb 1-1.1: SerialNumber: 0001
[    6.531385] usbcore: registered new interface driver usbserial_generic
[    6.531785] usbserial: USB Serial support registered for generic
[    6.537561] usbcore: registered new interface driver cp210x
[    6.537641] usbserial: USB Serial support registered for cp210x
[    6.537779] cp210x 1-1.1:1.0: cp210x converter detected
[    6.543815] usb 1-1.1: cp210x converter now attached to ttyUSB0
[    6.624981] usb 1-1.2: new full-speed USB device number 4 using dwc2
[    6.694817] random: crng init done
[    6.694833] random: 7 urandom warning(s) missed due to ratelimiting
[    6.857086] usb 1-1.2: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00
[    6.857110] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    6.857128] usb 1-1.2: Product: CP2102 USB to UART Bridge Controller
[    6.857145] usb 1-1.2: Manufacturer: Silicon Labs
[    6.857163] usb 1-1.2: SerialNumber: 0001
[    6.860476] cp210x 1-1.2:1.0: cp210x converter detected
[    6.864539] usb 1-1.2: cp210x converter now attached to ttyUSB1
[    7.064934] usb 1-1.4: new high-speed USB device number 5 using dwc2
[    7.295999] usb 1-1.4: New USB device found, idVendor=03e7, idProduct=2485, bcdDevice= 0.01
[    7.296022] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    7.296041] usb 1-1.4: Product: Movidius MyriadX
[    7.296057] usb 1-1.4: Manufacturer: Movidius Ltd.
[    7.296075] usb 1-1.4: SerialNumber: 03e72485
[    7.513358] uart-pl011 fe201000.serial: no DMA platform data
[    7.657752] 8021q: 802.1Q VLAN Support v1.8
[    7.975093] Adding 102396k swap on /var/swap.  Priority:-2 extents:1 across:102396k SSFS
[    8.237448] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save enabled
[    8.650067] bcmgenet fd580000.ethernet: configuring instance for external RGMII (RX delay)
[    8.650606] bcmgenet fd580000.ethernet eth0: Link is Down
[    9.744516] broken atomic modeset userspace detected, disabling atomic
[   10.282490] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   11.640363] fuse: init (API version 7.32)
[   14.334107] Bluetooth: Core ver 2.22
[   14.334202] NET: Registered protocol family 31
[   14.334210] Bluetooth: HCI device and connection manager initialized
[   14.334557] Bluetooth: HCI socket layer initialized
[   14.334570] Bluetooth: L2CAP socket layer initialized
[   14.334597] Bluetooth: SCO socket layer initialized
[   14.341733] Bluetooth: HCI UART driver ver 2.3
[   14.341746] Bluetooth: HCI UART protocol H4 registered
[   14.341811] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   14.343854] Bluetooth: HCI UART protocol Broadcom registered
[   14.548338] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   14.548350] Bluetooth: BNEP filters: protocol multicast
[   14.548364] Bluetooth: BNEP socket layer initialized
[   14.581271] Bluetooth: RFCOMM TTY layer initialized
[   14.581294] Bluetooth: RFCOMM socket layer initialized
[   14.581320] Bluetooth: RFCOMM ver 1.11
[   24.161557] usb 1-1.4: USB disconnect, device number 5
[   24.754855] usb 1-1.4: new high-speed USB device number 6 using dwc2
[   24.985965] usb 1-1.4: New USB device found, idVendor=03e7, idProduct=f63b, bcdDevice= 1.00
[   24.985974] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   24.985982] usb 1-1.4: Product: VSC Loopback Device
[   24.985989] usb 1-1.4: Manufacturer: Intel Corporation
[   24.985996] usb 1-1.4: SerialNumber: 41440410D16696BC00
[   38.596250] uart-pl011 fe201a00.serial: no DMA platform data
[ 5366.416732] v3d fec00000.v3d: MMU error from client L2T (0) at 0x61c1000, pte invalid

And if I reboot at this time, it won't do anything, it will only show me RuntimeError: Failed to allocate graph: MYRIAD device is not opened. to me, and the device cannot be found in lsusb even if I did not do anything to NCS2 physically:

I was using python3 face_recognition_demo.py -i 0 -d_fd MYRIAD -m_fd intel/face-detection-retail-0004/FP16/face-detection-retail-0004.xml -d_lm MYRIAD -m_lm intel/landmarks-regression-retail-0009/FP16/landmarks-regression-retail-0009.xml -d_reid MYRIAD -m_reid intel/face-reidentification-retail-0095/FP16/face-reidentification-retail-0095.xml --verbose --run_detector --output_resolution 800x600 -fg /home/pi/faces to run the demo,
and my opencv is compiled and build myself on raspberry pi with gstreamer support from opencv-openvino branch with version 4.5.2-openvino, here is the full log of it:

pi@raspberrypi:~/ori/face_recognition_demo/python $ python3 face_recognition_demo.py -i 0 -d_fd MYRIAD -m_fd intel/face-detection-retail-0004/FP16/face-detection-retail-0004.xml -d_lm MYRIAD -m_lm intel/landmarks-regression-retail-0009/FP16/landmarks-regression-retail-0009.xml -d_reid MYRIAD -m_reid intel/face-reidentification-retail-0095/FP16/face-reidentification-retail-0095.xml --verbose --run_detector --output_resolution 800x600 -fg /home/pi/faces
[ WARN:0] global /home/pi/opencv/modules/videoio/src/cap_gstreamer.cpp (854) open OpenCV | GStreamer warning: Error opening bin: no element "0"
[ WARN:0] global /home/pi/opencv/modules/videoio/src/cap_gstreamer.cpp (597) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
[ WARN:0] global /home/pi/opencv/modules/videoio/src/cap_gstreamer.cpp (1081) open OpenCV | GStreamer warning: Cannot query video position: status=0, value=-1, duration=-1
[ WARN:0] global /home/pi/opencv/modules/videoio/src/cap_gstreamer.cpp (1371) setProperty OpenCV | GStreamer warning: GStreamer: unhandled property
[ WARN:0] global /home/pi/opencv/modules/videoio/src/cap_gstreamer.cpp (1371) setProperty OpenCV | GStreamer warning: GStreamer: unhandled property
[ WARN:0] global /home/pi/opencv/modules/videoio/src/cap_gstreamer.cpp (1371) setProperty OpenCV | GStreamer warning: GStreamer: unhandled property
[ INFO ] OpenVINO Runtime
[ INFO ]    build: custom_HEAD_cdb9bec7210f8c24fde3e416c7ada820faaaa23e
[ INFO ] Reading Face Detection model intel/face-detection-retail-0004/FP16/face-detection-retail-0004.xml
[ INFO ] Reading Landmarks Detection model intel/landmarks-regression-retail-0009/FP16/landmarks-regression-retail-0009.xml
[ INFO ] Reading Face Reidentification model intel/face-reidentification-retail-0095/FP16/face-reidentification-retail-0095.xml
Traceback (most recent call last):
  File "face_recognition_demo.py", line 233, in <module>
    sys.exit(main() or 0)
  File "face_recognition_demo.py", line 177, in main
    frame_processor = FrameProcessor(args)
  File "face_recognition_demo.py", line 100, in __init__
    self.face_detector.deploy(args.d_fd)
  File "/home/pi/ori/face_recognition_demo/python/ie_module.py", line 33, in deploy
    compiled_model = self.core.compile_model(self.model, device)
  File "/home/pi/openvino_dist/python/python3.7/openvino/runtime/ie_api.py", line 266, in compile_model
    super().compile_model(model, device_name, {} if config is None else config)
RuntimeError: Failed to allocate graph: MYRIAD device is not opened.
pi@raspberrypi:~/ori/face_recognition_demo/python $ lsusb
Bus 001 Device 004: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP2102/CP2109 UART Bridge Controller [CP210x family]
Bus 001 Device 003: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP2102/CP2109 UART Bridge Controller [CP210x family]
Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

My openvino was using 2022.1.0 version.

Can anyone help me?

openvinotoolkit / open_model_zoo

The NCS2 freezes while inferencing the face recognition demo and it looks like the NCS2 was half-dead at this time #3556

What happened?