I2S Sync errors

[CDrDemon]

While using MoodeAudio 8.2.2 on RPi 3 or RPi 4 with at least HifiBerry Digi+ clone i2s hat having multiple i2s errors.

RPi zero is good.

As for user, music just stops playing and getting "MPD output error" in web interface. Nothing wrong in dmesg at this moment. But when pushing play button, music starts, and getting an error in dmesg [59774.926402] bcm2835-i2s 3f203000.i2s: I2S SYNC error! This happens in random periods, like 1 hour to 2 hours.

Full dmesg output

Linux: 5.15.61-v8+ #1579 | aarch64 (64-bit) | DebOS: 11.5
Model: Pi-3B+ 1.3 1GB
Audio: Generic-2 I2S (rpi-dac)

pi@moode:~ $ dmesg
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[    0.000000] Linux version 5.15.61-v8+ (dom@buildbot) (aarch64-linux-gnu-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1579 SMP PREEMPT Fri Aug 26 11:16:44 BST 2022
[    0.000000] random: crng init done
[    0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3
[    0.000000] efi: UEFI not found.
[    0.000000] Reserved memory: created CMA memory pool at 0x0000000037400000, size 64 MiB
[    0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000000000000-0x000000003b3fffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000000000000-0x000000003b3fffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x000000003b3fffff]
[    0.000000] On node 0, zone DMA: 19456 pages in unavailable ranges
[    0.000000] percpu: Embedded 28 pages/cpu s77272 r8192 d29224 u114688
[    0.000000] pcpu-alloc: s77272 r8192 d29224 u114688 alloc=28*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Detected VIPT I-cache on CPU0
[    0.000000] CPU features: kernel page table isolation forced ON by KASLR
[    0.000000] CPU features: detected: Kernel page table isolation (KPTI)
[    0.000000] CPU features: detected: ARM erratum 843419
[    0.000000] CPU features: detected: ARM erratum 845719
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 238896
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=640 bcm2708_fb.fbheight=480 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000  console=ttyAMA0,115200 console=tty1 root=PARTUUID=f43fc575-02 rootfstype=ext4 fsck.repair=yes rootwait
[    0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 862084K/970752K available (11520K kernel code, 1956K rwdata, 4140K rodata, 3840K init, 974K bss, 43132K reserved, 65536K cma-reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 38040 entries in 149 pages
[    0.000000] ftrace: allocated 149 pages with 4 groups
[    0.000000] trace event string verifier disabled
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu:     RCU event tracing is enabled.
[    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=4.
[    0.000000]  Trampoline variant of Tasks RCU enabled.
[    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 25 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] Root IRQ handler: bcm2836_arm_irqchip_handle_irq
[    0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[    0.000001] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[    0.000364] Console: colour dummy device 80x25
[    0.001291] printk: console [tty1] enabled
[    0.001383] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=76800)
[    0.001448] pid_max: default: 32768 minimum: 301
[    0.001663] LSM: Security Framework initializing
[    0.001948] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.002016] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.003749] cgroup: Disabling memory control group subsystem
[    0.007605] rcu: Hierarchical SRCU implementation.
[    0.009105] EFI services will not be available.
[    0.009879] smp: Bringing up secondary CPUs ...
[    0.011424] Detected VIPT I-cache on CPU1
[    0.011516] CPU1: Booted secondary processor 0x0000000001 [0x410fd034]
[    0.013359] Detected VIPT I-cache on CPU2
[    0.013425] CPU2: Booted secondary processor 0x0000000002 [0x410fd034]
[    0.015078] Detected VIPT I-cache on CPU3
[    0.015134] CPU3: Booted secondary processor 0x0000000003 [0x410fd034]
[    0.015347] smp: Brought up 1 node, 4 CPUs
[    0.015500] SMP: Total of 4 processors activated.
[    0.015534] CPU features: detected: 32-bit EL0 Support
[    0.015565] CPU features: detected: 32-bit EL1 Support
[    0.015599] CPU features: detected: CRC32 instructions
[    0.056758] CPU: All CPU(s) started at EL2
[    0.056905] alternatives: patching kernel code
[    0.058879] devtmpfs: initialized
[    0.081413] Enabled cp15_barrier support
[    0.081494] Enabled setend support
[    0.081539] KASLR enabled
[    0.081828] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.081899] futex hash table entries: 1024 (order: 4, 65536 bytes, linear)
[    0.085147] pinctrl core: initialized pinctrl subsystem
[    0.086359] DMI not present or invalid.
[    0.087349] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.098590] DMA: preallocated 1024 KiB GFP_KERNEL pool for atomic allocations
[    0.099182] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.100711] DMA: preallocated 1024 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.100900] audit: initializing netlink subsys (disabled)
[    0.101344] audit: type=2000 audit(0.100:1): state=initialized audit_enabled=0 res=1
[    0.102240] thermal_sys: Registered thermal governor 'step_wise'
[    0.102558] cpuidle: using governor menu
[    0.103135] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.103443] ASID allocator initialised with 32768 entries
[    0.103704] Serial: AMBA PL011 UART driver
[    0.116066] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[    0.140659] raspberrypi-firmware soc:firmware: Attached to firmware from 2022-10-26T11:10:35, variant start
[    0.144689] raspberrypi-firmware soc:firmware: Firmware hash is c72ad6b26ff40c91ef776b847436094ee63fabee
[    0.205707] bcm2835-dma 3f007000.dma: DMA legacy API manager, dmachans=0x1
[    0.211154] vgaarb: loaded
[    0.211822] SCSI subsystem initialized
[    0.212163] usbcore: registered new interface driver usbfs
[    0.212284] usbcore: registered new interface driver hub
[    0.212404] usbcore: registered new device driver usb
[    0.212931] usb_phy_generic phy: supply vcc not found, using dummy regulator
[    0.213321] usb_phy_generic phy: dummy supplies not allowed for exclusive requests
[    0.213715] pps_core: LinuxPPS API ver. 1 registered
[    0.213752] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.213816] PTP clock support registered
[    0.216071] clocksource: Switched to clocksource arch_sys_counter
[    0.352868] VFS: Disk quotas dquot_6.6.0
[    0.353045] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.353319] FS-Cache: Loaded
[    0.353680] CacheFiles: Loaded
[    0.369401] NET: Registered PF_INET protocol family
[    0.369745] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.371329] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[    0.371408] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.371466] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.371631] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear)
[    0.371860] TCP: Hash tables configured (established 8192 bind 8192)
[    0.372197] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.372284] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.372658] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    0.374048] RPC: Registered named UNIX socket transport module.
[    0.374093] RPC: Registered udp transport module.
[    0.374126] RPC: Registered tcp transport module.
[    0.374158] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.374204] PCI: CLS 0 bytes, default 64
[    0.377201] hw perfevents: enabled with armv8_cortex_a53 PMU driver, 7 counters available
[    0.377565] kvm [1]: IPA Size Limit: 40 bits
[    0.379299] kvm [1]: Hyp mode initialized successfully
[    1.725004] Initialise system trusted keyrings
[    1.725578] workingset: timestamp_bits=46 max_order=18 bucket_order=0
[    1.736631] zbud: loaded
[    1.739454] FS-Cache: Netfs 'nfs' registered for caching
[    1.740505] NFS: Registering the id_resolver key type
[    1.740585] Key type id_resolver registered
[    1.740619] Key type id_legacy registered
[    1.740796] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.740839] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[    1.742603] Key type asymmetric registered
[    1.742642] Asymmetric key parser 'x509' registered
[    1.742773] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    1.743198] io scheduler mq-deadline registered
[    1.743239] io scheduler kyber registered
[    1.750909] bcm2708_fb soc:fb: FB found 1 display(s)
[    1.769791] Console: switching to colour frame buffer device 80x30
[    1.778017] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 640x480
[    1.791077] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled
[    1.797380] bcm2835-rng 3f104000.rng: hwrng registered
[    1.801157] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB)
[    1.809041] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[    1.834867] brd: module loaded
[    1.853088] loop: module loaded
[    1.857106] Loading iSCSI transport class v2.0-870.
[    1.866952] usbcore: registered new interface driver r8152
[    1.870193] usbcore: registered new interface driver lan78xx
[    1.873368] usbcore: registered new interface driver smsc95xx
[    1.876937] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    2.608538] Core Release: 2.80a
[    2.611375] Setting default values for core params
[    2.614288] Finished setting default values for core params
[    2.817660] Using Buffer DMA mode
[    2.820497] Periodic Transfer Interrupt Enhancement - disabled
[    2.823333] Multiprocessor Interrupt Enhancement - disabled
[    2.826198] OTG VER PARAM: 0, OTG VER FLAG: 0
[    2.829089] Dedicated Tx FIFOs mode

[    2.832828] WARN::dwc_otg_hcd_init:1074: FIQ DMA bounce buffers: virt = ffffffc008469000 dma = 0x00000000f7810000 len=9024
[    2.841210] FIQ FSM acceleration enabled for :
               Non-periodic Split Transactions
               Periodic Split Transactions
               High-Speed Isochronous Endpoints
               Interrupt/Control Split Transaction hack enabled
[    2.854271] dwc_otg: Microframe scheduler enabled

[    2.854343] WARN::hcd_init_fiq:497: MPHI regs_base at ffffffc008065000
[    2.859293] dwc_otg 3f980000.usb: DWC OTG Controller
[    2.861910] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[    2.867069] dwc_otg 3f980000.usb: irq 74, io mem 0x00000000
[    2.869874] Init: Port Power? op_state=1
[    2.872653] Init: Power Port (0)
[    2.875908] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15
[    2.881460] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.887197] usb usb1: Product: DWC OTG Controller
[    2.890124] usb usb1: Manufacturer: Linux 5.15.61-v8+ dwc_otg_hcd
[    2.893094] usb usb1: SerialNumber: 3f980000.usb
[    2.897018] hub 1-0:1.0: USB hub found
[    2.899956] hub 1-0:1.0: 1 port detected
[    2.904163] dwc_otg: FIQ enabled
[    2.904181] dwc_otg: NAK holdoff enabled
[    2.904195] dwc_otg: FIQ split-transaction FSM enabled
[    2.904217] Module dwc_common_port init
[    2.904987] usbcore: registered new interface driver uas
[    2.907975] usbcore: registered new interface driver usb-storage
[    2.911334] mousedev: PS/2 mouse device common for all mice
[    2.920116] sdhci: Secure Digital Host Controller Interface driver
[    2.922952] sdhci: Copyright(c) Pierre Ossman
[    2.926424] sdhci-pltfm: SDHCI platform and OF driver helper
[    2.932945] ledtrig-cpu: registered to indicate activity on CPUs
[    2.936751] hid: raw HID events driver (C) Jiri Kosina
[    2.939855] usbcore: registered new interface driver usbhid
[    2.942745] usbhid: USB HID core driver
[    2.945989] ashmem: initialized
[    2.956419] NET: Registered PF_PACKET protocol family
[    2.959371] Key type dns_resolver registered
[    2.963951] registered taskstats version 1
[    2.966687] Loading compiled-in X.509 certificates
[    2.970382] Key type ._fscrypt registered
[    2.973062] Key type .fscrypt registered
[    2.975576] Key type fscrypt-provisioning registered
[    2.997265] uart-pl011 3f201000.serial: there is not valid maps for state default
[    3.002556] uart-pl011 3f201000.serial: cts_event_workaround enabled
[    3.005378] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 99, base_baud = 0) is a PL011 rev2
[    3.012398] Indeed it is in host mode hprt0 = 00021501
[    3.017010] printk: console [ttyAMA0] enabled
[    3.216116] usb 1-1: new high-speed USB device number 2 using dwc_otg
[    3.228299] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    3.229679] Indeed it is in host mode hprt0 = 00001101
[    3.234833] bcm2835-power bcm2835-power: Broadcom BCM2835 power domains driver
[    3.444662] usb 1-1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[    3.449575] sdhost: log_buf @ 000000005dd86bea (c2db2000)
[    3.450755] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    3.528498] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[    3.542058] hub 1-1:1.0: USB hub found
[    3.562344] of_cfs_init
[    3.566872] hub 1-1:1.0: 4 ports detected
[    3.576548] of_cfs_init: OK
[    3.586166] mmc0: host does not support reading read-only switch, assuming write-enable
[    3.900159] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[    3.913825] mmc0: new high speed SDHC card at address 0007
[    4.017385] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514, bcdDevice= b.b3
[    4.024514] mmcblk0: mmc0:0007 SD16G 14.5 GiB
[    4.026572] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    4.371128]  mmcblk0: p1 p2
[    4.377679] hub 1-1.1:1.0: USB hub found
[    4.378147] mmcblk0: mmc0:0007 SD16G 14.5 GiB
[    4.392526] hub 1-1.1:1.0: 3 ports detected
[    4.418604] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none.
[    4.434796] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    4.446161] devtmpfs: mounted
[    4.463112] Freeing unused kernel memory: 3840K
[    4.470975] Run /sbin/init as init process
[    4.478094]   with arguments:
[    4.478108]     /sbin/init
[    4.478123]   with environment:
[    4.478136]     HOME=/
[    4.478149]     TERM=linux
[    4.753393] dwc_otg_handle_wakeup_detected_intr lxstate = 2
[    5.140123] usb 1-1.1.1: new high-speed USB device number 4 using dwc_otg
[    5.151686] systemd[1]: System time before build time, advancing clock.
[    5.252964] usb 1-1.1.1: New USB device found, idVendor=0424, idProduct=7800, bcdDevice= 3.00
[    5.268165] usb 1-1.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    5.488398] NET: Registered PF_INET6 protocol family
[    5.499359] Segment Routing with IPv6
[    5.506448] In-situ OAM (IOAM) with IPv6
[    5.549654] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): No External EEPROM. Setting MAC Speed
[    5.626234] lan78xx 1-1.1.1:1.0 (unnamed net_device) (uninitialized): int urb period 64
[    5.642421] systemd[1]: systemd 247.3-7+deb11u1 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=unified)
[    5.681659] systemd[1]: Detected architecture arm64.
[    5.727254] systemd[1]: Set hostname to <moode>.
[    5.969279] uart-pl011 3f201000.serial: no DMA platform data
[    6.964134] systemd[1]: Queued start job for default target Multi-User System.
[    6.985453] systemd[1]: Created slice system-getty.slice.
[    7.000754] systemd[1]: Created slice system-modprobe.slice.
[    7.015797] systemd[1]: Created slice system-serial\x2dgetty.slice.
[    7.031397] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[    7.046969] systemd[1]: Created slice User and Session Slice.
[    7.061236] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    7.080877] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    7.101180] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    7.122351] systemd[1]: Reached target Local Encrypted Volumes.
[    7.136522] systemd[1]: Reached target Paths.
[    7.148870] systemd[1]: Reached target Slices.
[    7.161090] systemd[1]: Reached target Swap.
[    7.201503] systemd[1]: Listening on RPCbind Server Activation Socket.
[    7.217563] systemd[1]: Listening on Syslog Socket.
[    7.231366] systemd[1]: Listening on fsck to fsckd communication Socket.
[    7.246367] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    7.262602] systemd[1]: Listening on Journal Audit Socket.
[    7.277128] systemd[1]: Listening on Journal Socket (/dev/log).
[    7.292268] systemd[1]: Listening on Journal Socket.
[    7.314904] systemd[1]: Listening on udev Control Socket.
[    7.329122] systemd[1]: Listening on udev Kernel Socket.
[    7.343120] systemd[1]: Condition check resulted in Huge Pages File System being skipped.
[    7.364183] systemd[1]: Mounting POSIX Message Queue File System...
[    7.385003] systemd[1]: Mounting RPC Pipe File System...
[    7.405006] systemd[1]: Mounting Kernel Debug File System...
[    7.426008] systemd[1]: Mounting Kernel Trace File System...
[    7.440207] systemd[1]: Condition check resulted in Kernel Module supporting RPCSEC_GSS being skipped.
[    7.470069] systemd[1]: Starting Restore / save the current clock...
[    7.494852] systemd[1]: Starting Set the console keyboard layout...
[    7.517095] systemd[1]: Starting Create list of static device nodes for the current kernel...
[    7.544935] systemd[1]: Starting Load Kernel Module configfs...
[    7.566777] systemd[1]: Starting Load Kernel Module drm...
[    7.588024] systemd[1]: Starting Load Kernel Module fuse...
[    7.614746] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[    7.637851] systemd[1]: Starting File System Check on Root Device...
[    7.668996] systemd[1]: Starting Journal Service...
[    7.715522] systemd[1]: Starting Load Kernel Modules...
[    7.730372] fuse: init (API version 7.34)
[    7.761321] systemd[1]: Starting Coldplug All udev Devices...
[    7.794663] systemd[1]: Mounted POSIX Message Queue File System.
[    7.810031] systemd[1]: Mounted RPC Pipe File System.
[    7.824463] systemd[1]: Mounted Kernel Debug File System.
[    7.839657] systemd[1]: Mounted Kernel Trace File System.
[    7.849032] i2c_dev: i2c /dev entries driver
[    7.867885] systemd[1]: Finished Restore / save the current clock.
[    7.889008] systemd[1]: Finished Create list of static device nodes for the current kernel.
[    7.912273] systemd[1]: modprobe@configfs.service: Succeeded.
[    7.924736] systemd[1]: Finished Load Kernel Module configfs.
[    7.941610] systemd[1]: modprobe@drm.service: Succeeded.
[    7.952954] systemd[1]: Finished Load Kernel Module drm.
[    7.969682] systemd[1]: modprobe@fuse.service: Succeeded.
[    7.980775] systemd[1]: Finished Load Kernel Module fuse.
[    7.997058] systemd[1]: Finished Load Kernel Modules.
[    8.019623] systemd[1]: Mounting FUSE Control File System...
[    8.049275] systemd[1]: Mounting Kernel Configuration File System...
[    8.071620] systemd[1]: Starting pNFS block layout mapping daemon...
[    8.093368] systemd[1]: Started File System Check Daemon to report status.
[    8.149221] systemd[1]: Starting Apply Kernel Variables...
[    8.192843] systemd[1]: Started Journal Service.
[    8.481013] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null). Quota mode: none.
[    8.570875] systemd-journald[145]: Received client request to flush runtime journal.
[    8.588692] systemd-journald[145]: File /var/log/journal/45a956839f2847caa6c51893bae45602/system.journal corrupted or uncleanly shut down, renaming and replacing.
[   10.951854] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[   10.954706] mc: Linux media interface: v0.10
[   10.966892] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[   10.966947] [vc_sm_connected_init]: start
[   10.990399] [vc_sm_connected_init]: installed successfully
[   11.071128] videodev: Linux video capture interface: v2.00
[   11.182678] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   11.192171] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[   11.209852] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned.
[   11.220736] snd_soc_pcm1794a: loading out-of-tree module taints kernel.
[   11.226944] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[   11.227929] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video13
[   11.229147] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video14
[   11.230053] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video15
[   11.230561] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video16
[   11.230604] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[   11.230637] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[   11.230666] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[   11.230693] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[   11.235474] bcm2835-isp bcm2835-isp: Device node output[0] registered as /dev/video20
[   11.236224] bcm2835-isp bcm2835-isp: Device node capture[0] registered as /dev/video21
[   11.236857] bcm2835-isp bcm2835-isp: Device node capture[1] registered as /dev/video22
[   11.237247] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[   11.237488] bcm2835-isp bcm2835-isp: Device node stats[2] registered as /dev/video23
[   11.237531] bcm2835-isp bcm2835-isp: Register output node 0 with media controller
[   11.237579] bcm2835-isp bcm2835-isp: Register capture node 1 with media controller
[   11.237609] bcm2835-isp bcm2835-isp: Register capture node 2 with media controller
[   11.237636] bcm2835-isp bcm2835-isp: Register capture node 3 with media controller
[   11.237930] bcm2835-isp bcm2835-isp: Loaded V4L2 bcm2835-isp
[   11.252785] bcm2835-codec bcm2835-codec: Device registered as /dev/video10
[   11.252874] bcm2835-codec bcm2835-codec: Loaded V4L2 decode
[   11.256567] bcm2835-codec bcm2835-codec: Device registered as /dev/video11
[   11.256650] bcm2835-codec bcm2835-codec: Loaded V4L2 encode
[   11.263405] bcm2835-codec bcm2835-codec: Device registered as /dev/video12
[   11.263497] bcm2835-codec bcm2835-codec: Loaded V4L2 isp
[   11.268414] bcm2835-codec bcm2835-codec: Device registered as /dev/video18
[   11.268492] bcm2835-codec bcm2835-codec: Loaded V4L2 image_fx
[   11.272256] bcm2835-codec bcm2835-codec: Device registered as /dev/video31
[   11.272335] bcm2835-codec bcm2835-codec: Loaded V4L2 encode_image
[   12.434709] wm8804 1-003b: revision E
[   14.137757] 8021q: 802.1Q VLAN Support v1.8
[   14.550808] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[   14.569401] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   14.587547] cfg80211: loaded regulatory.db is malformed or signature is missing/invalid
[   14.915517] lan78xx 1-1.1.1:1.0 eth0: kevent 4 may have been dropped
[   14.917691] 8021q: adding VLAN 0 to HW filter on device eth0
[   33.764082] cam-dummy-reg: disabling
[ 2594.430671] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[ 5508.897074] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[ 8294.444934] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[13634.411091] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[16334.939293] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[19094.445654] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[21734.874530] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[24374.280712] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[27134.926664] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[29894.631891] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[32654.221284] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[35414.794087] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[38174.377814] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[40934.998984] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[43754.476229] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[46515.026212] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[54555.105551] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[57134.508775] bcm2835-i2s 3f203000.i2s: I2S SYNC error!
[59774.926402] bcm2835-i2s 3f203000.i2s: I2S SYNC error!

There are lots of errors in the end of dmesg after a night, cause used a workaround in crontab * * * * * mpd play

Here i'm using generic rpi-dac i2s profile for test purposes, but there is no differences ether using HifiBerry Digi+, IQaudio wolfson 8804 profile or any other profile, that gives any sound from this hat.

The funny thing is rern/rAudio1 based on arch is working with no isues. Also found some threads, where people found source of this issue like bluetooth conflincts while ising same pins, but i couldn't get any working solution

[moodeaudio]

Troubleshooting is provided in the Support section of our Forum so that our user community can benefit from the discussion. Email tim at moodeaudio dot org with your preferred userid and I'll setup an account for you.