Hello,
On 21.2.2014 15:09, Michal Šmucr wrote:
I tried both patches separately on 3.14-rc3 and second patch alone
helped here. I wasn't able to reproduce babble interrupt anymore, no
matter, what i did with my hub and USB peripherals. Great!
Unfortunately i found another appearance of Babble and this time without
any workaround.
Recently I tested HiFace USB audio interface
(https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/sound/usb/hiface),
mainly because it using bulk transfers instead of isochronous ones and i
was curious, if it will be also affected by high CPU utilization issue,
which i reported in my other posts.
After connection to Beaglebone it seems to be correctly enumerated
(albeit with one warning about its reported standard violating maxpacket
length, but it shouldn't be lethal). Then after initiating of audio
playback, Babble interrupt occurs and this is the end.
Force cancellation of playback emits couple of warnings in dmesg, but
this is probably sign of unfinished urbs.
Just for completeness, audio interface works well on Intel NUC board
with same kernel version.
Best regards,
Michal
Bus 002 Device 002: ID 04b4:930b Cypress Semiconductor Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 64
idVendor 0x04b4 Cypress Semiconductor Corp.
idProduct 0x930b
bcdDevice 0.01
iManufacturer 1 M2TECH
iProduct 2 USB-SPDIF
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 0
iConfiguration 0
bmAttributes 0x60
(Missing must-be-set bit!)
Self Powered
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0002
(Bus Powered)
Remote Wakeup Enabled
[ 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 3.14.0-rc4-bone0 (msmucr@vmdebian-ct) (gcc version 4.8.3 20140106 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2014.01 - Linaro GCC 2013.11) ) #1 SMP Sun Mar 2 15:10:51 CET 2014
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine model: TI AM335x BeagleBone
[ 0.000000] cma: CMA: reserved 16 MiB at 9e800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 130816
[ 0.000000] free_area_init_node: node 0, pgdat c0b09000, node_mem_map dfaf2000
[ 0.000000] Normal zone: 1024 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 130816 pages, LIFO batch:31
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.0 (sgx neon )
[ 0.000000] PERCPU: Embedded 9 pages/cpu @dfad7000 s14400 r8192 d14272 u36864
[ 0.000000] pcpu-alloc: s14400 r8192 d14272 u36864 alloc=9*4096
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129792
[ 0.000000] Kernel command line: console=ttyO0,115200n8 capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait fixrtc ip=
[ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] allocated 1048576 bytes of page_cgroup
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] Memory: 485488K/523264K available (7277K kernel code, 620K rwdata, 2940K rodata, 458K init, 1006K bss, 37776K reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xe0800000 - 0xff000000 ( 488 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
[ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
[ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0a02628 (10218 kB)
[ 0.000000] .init : 0xc0a03000 - 0xc0a75840 ( 459 kB)
[ 0.000000] .data : 0xc0a76000 - 0xc0b11000 ( 620 kB)
[ 0.000000] .bss : 0xc0b11000 - 0xc0c0ca8c (1007 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000016] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns
[ 0.000044] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000344] Console: colour dummy device 80x30
[ 0.000389] Calibrating delay loop... 548.86 BogoMIPS (lpj=2744320)
[ 0.049171] pid_max: default: 32768 minimum: 301
[ 0.049374] Security Framework initialized
[ 0.049413] Yama: becoming mindful.
[ 0.049716] Mount-cache hash table entries: 512
[ 0.061662] Initializing cgroup subsys memory
[ 0.061718] Initializing cgroup subsys devices
[ 0.061736] Initializing cgroup subsys freezer
[ 0.061753] Initializing cgroup subsys net_cls
[ 0.061767] Initializing cgroup subsys blkio
[ 0.061781] Initializing cgroup subsys perf_event
[ 0.061930] CPU: Testing write buffer coherency: ok
[ 0.062480] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[ 0.062563] Setting up static identity map for 0x806e4a80 - 0x806e4ad8
[ 0.064327] Brought up 1 CPUs
[ 0.064347] SMP: Total of 1 processors activated.
[ 0.064361] CPU: All CPU(s) started in SVC mode.
[ 0.065455] devtmpfs: initialized
[ 0.071873] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.087749] omap_hwmod: tptc0 using broken dt data from edma
[ 0.087927] omap_hwmod: tptc1 using broken dt data from edma
[ 0.088087] omap_hwmod: tptc2 using broken dt data from edma
[ 0.093580] omap_hwmod: debugss: _wait_target_disable failed
[ 0.153312] xor: measuring software checksum speed
[ 0.249125] arm4regs : 685.200 MB/sec
[ 0.349122] 8regs : 505.200 MB/sec
[ 0.449117] 32regs : 590.800 MB/sec
[ 0.549122] neon : 490.000 MB/sec
[ 0.549137] xor: using function: arm4regs (685.200 MB/sec)
[ 0.549163] pinctrl core: initialized pinctrl subsystem
[ 0.549899] regulator-dummy: no parameters
[ 0.551725] NET: Registered protocol family 16
[ 0.555555] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.556777] cpuidle: using governor ladder
[ 0.556800] cpuidle: using governor menu
[ 0.566429] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 0.567602] platform 49000000.edma: alias fck already exists
[ 0.567635] platform 49000000.edma: alias fck already exists
[ 0.567658] platform 49000000.edma: alias fck already exists
[ 0.568915] OMAP GPIO hardware version 0.1
[ 0.580657] No ATAGs?
[ 0.580684] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.582116] omap_init_mbox: hwmod doesn't have valid attrs
[ 0.597485] bio: create slab <bio-0> at 0
[ 0.759434] raid6: int32x1 86 MB/s
[ 0.929508] raid6: int32x2 119 MB/s
[ 1.099451] raid6: int32x4 94 MB/s
[ 1.269330] raid6: int32x8 95 MB/s
[ 1.439140] raid6: neonx1 736 MB/s
[ 1.609170] raid6: neonx2 1022 MB/s
[ 1.779308] raid6: neonx4 274 MB/s
[ 1.949445] raid6: neonx8 149 MB/s
[ 1.949459] raid6: using algorithm neonx2 (1022 MB/s)
[ 1.949472] raid6: using intx1 recovery algorithm
[ 1.960982] edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
[ 1.961774] vmmcsd_fixed: 3300 mV
[ 1.965427] SCSI subsystem initialized
[ 1.966126] libata version 3.00 loaded.
[ 1.966632] usbcore: registered new interface driver usbfs
[ 1.966752] usbcore: registered new interface driver hub
[ 1.967018] usbcore: registered new device driver usb
[ 1.971273] DCDC1: at 1500 mV
[ 1.972417] vdd_mpu: 925 <--> 1325 mV at 975 mV
[ 1.973509] vdd_core: 925 <--> 1150 mV at 1100 mV
[ 1.974567] LDO1: at 1800 mV
[ 1.975634] LDO2: at 3300 mV
[ 1.977331] LDO3: 1800 mV
[ 1.978390] LDO4: at 3300 mV
[ 1.979177] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[ 1.980024] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 1.983302] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[ 1.983593] media: Linux media interface: v0.10
[ 1.983712] Linux video capture interface: v2.00
[ 1.983858] pps_core: LinuxPPS API ver. 1 registered
[ 1.983873] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@xxxxxxxx>
[ 1.983914] PTP clock support registered
[ 1.984017] EDAC MC: Ver: 3.0.0
[ 1.986424] NetLabel: Initializing
[ 1.986444] NetLabel: domain hash size = 128
[ 1.986455] NetLabel: protocols = UNLABELED CIPSOv4
[ 1.986548] NetLabel: unlabeled traffic allowed by default
[ 1.987389] Switched to clocksource timer1
[ 2.064801] NET: Registered protocol family 2
[ 2.065919] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 2.066004] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[ 2.066112] TCP: Hash tables configured (established 4096 bind 4096)
[ 2.066204] TCP: reno registered
[ 2.066228] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 2.066263] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 2.066680] NET: Registered protocol family 1
[ 2.067338] RPC: Registered named UNIX socket transport module.
[ 2.067467] RPC: Registered udp transport module.
[ 2.067482] RPC: Registered tcp transport module.
[ 2.067495] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 2.067931] Unpacking initramfs...
[ 2.421594] Freeing initrd memory: 3352K (c1600000 - c1946000)
[ 2.422161] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available
[ 2.424903] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 2.425222] audit: initializing netlink subsys (disabled)
[ 2.425318] audit: type=2000 audit(2.410:1): initialized
[ 2.790948] VFS: Disk quotas dquot_6.5.2
[ 2.791406] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 2.795134] NFS: Registering the id_resolver key type
[ 2.795241] Key type id_resolver registered
[ 2.795257] Key type id_legacy registered
[ 2.795287] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.795705] fuse init (API version 7.22)
[ 2.796463] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
[ 2.800324] msgmni has been set to 986
[ 2.802368] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 2.802542] io scheduler noop registered
[ 2.802560] io scheduler deadline registered
[ 2.802638] io scheduler cfq registered (default)
[ 2.915930] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 2.919272] omap_uart 44e09000.serial: no wakeirq for uart0
[ 2.919834] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 88, base_baud = 3000000) is a OMAP UART0
[ 3.807862] console [ttyO0] enabled
[ 3.812425] omap_uart 48022000.serial: no wakeirq for uart0
[ 3.818789] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 89, base_baud = 3000000) is a OMAP UART1
[ 3.830458] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 3.837821] [drm] Initialized drm 1.1.0 20060810
[ 3.842817] usbcore: registered new interface driver udl
[ 3.848869] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.856170] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.863516] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.870844] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.878182] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 3.910602] usbcore: registered new interface driver usb-storage
[ 3.919559] 47401300.usb-phy supply vcc not found, using dummy regulator
[ 3.928349] musb-hdrc musb-hdrc.0.auto: Failed to request rx1.
[ 3.934533] musb-hdrc musb-hdrc.0.auto: musb_init_controller failed with status -517
[ 3.942793] platform musb-hdrc.0.auto: Driver musb-hdrc requests probe deferral
[ 3.951266] 47401b00.usb-phy supply vcc not found, using dummy regulator
[ 3.959863] musb-hdrc musb-hdrc.1.auto: Failed to request rx1.
[ 3.966035] musb-hdrc musb-hdrc.1.auto: musb_init_controller failed with status -517
[ 3.974286] platform musb-hdrc.1.auto: Driver musb-hdrc requests probe deferral
[ 3.994095] mousedev: PS/2 mouse device common for all mice
[ 4.000850] i2c /dev entries driver
[ 4.006947] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 4.014870] sdhci: Secure Digital Host Controller Interface driver
[ 4.021421] sdhci: Copyright(c) Pierre Ossman
[ 4.027026] 48060000.mmc supply vmmc_aux not found, using dummy regulator
[ 4.068090] 481d8000.mmc supply vmmc_aux not found, using dummy regulator
[ 4.104836] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 4.113773] sdhci-pltfm: SDHCI platform and OF driver helper
[ 4.121262] ledtrig-cpu: registered to indicate activity on CPUs
[ 4.127785] hidraw: raw HID events driver (C) Jiri Kosina
[ 4.133941] mmc0: new high speed SDHC card at address 1234
[ 4.141595] usbcore: registered new interface driver usbhid
[ 4.147535] usbhid: USB HID core driver
[ 4.151951] mmcblk0: mmc0:1234 SA08G 7.42 GiB
[ 4.158565] ashmem: initialized
[ 4.162135] mmcblk0: p1 p2
[ 4.166907] oprofile: using arm/armv7
[ 4.171323] TCP: cubic registered
[ 4.175812] NET: Registered protocol family 10
[ 4.181832] mip6: Mobile IPv6
[ 4.184978] NET: Registered protocol family 17
[ 4.190254] Key type dns_resolver registered
[ 4.194751] mpls_gso: MPLS GSO support
[ 4.209689] ThumbEE CPU extension supported.
[ 4.214210] Registering SWP/SWPB emulation handler
[ 4.219981] registered taskstats version 1
[ 4.225123] bio: create slab <bio-1> at 1
[ 4.230585] Btrfs loaded
[ 4.270705] mmc1: BKOPS_EN bit is not set
[ 4.277410] mmc1: new high speed MMC card at address 0001
[ 4.283746] mmcblk1: mmc1:0001 MMC02G 1.78 GiB
[ 4.288837] mmcblk1boot0: mmc1:0001 MMC02G partition 1 1.00 MiB
[ 4.295259] mmcblk1boot1: mmc1:0001 MMC02G partition 2 1.00 MiB
[ 4.303657] mmcblk1: p1 p2
[ 4.308652] mmcblk1boot1: unknown partition table
[ 4.315172] mmcblk1boot0: unknown partition table
[ 4.359976] tilcdc 4830e000.lcdc: found TDA19988
[ 4.365435] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 4.372407] [drm] No driver support for vblank timestamp query.
[ 4.378934] tilcdc 4830e000.lcdc: No connectors reported connected with modes
[ 4.386431] [drm] Cannot find any crtc or sizes - going 1024x768
[ 4.401446] Console: switching to colour frame buffer device 128x48
[ 4.413175] tilcdc 4830e000.lcdc: fb0: frame buffer device
[ 4.419071] tilcdc 4830e000.lcdc: registered panic notifier
[ 4.424934] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
[ 4.433579] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 4.433601] musb-hdrc: MHDRC RTL version 2.0
[ 4.433609] musb-hdrc: setup fifo_mode 4
[ 4.433623] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 4.433751] musb-hdrc musb-hdrc.0.auto: MUSB HDRC host driver
[ 4.440213] musb-hdrc musb-hdrc.0.auto: new USB bus registered, assigned bus number 1
[ 4.448734] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 4.455859] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.463462] usb usb1: Product: MUSB HDRC host driver
[ 4.468686] usb usb1: Manufacturer: Linux 3.14.0-rc4-bone0 musb-hcd
[ 4.475260] usb usb1: SerialNumber: musb-hdrc.0.auto
[ 4.481188] hub 1-0:1.0: USB hub found
[ 4.485178] hub 1-0:1.0: 1 port detected
[ 4.492014] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 4.492030] musb-hdrc: MHDRC RTL version 2.0
[ 4.492038] musb-hdrc: setup fifo_mode 4
[ 4.492051] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 4.492158] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 4.498676] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
[ 4.507155] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 4.514339] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 4.521935] usb usb2: Product: MUSB HDRC host driver
[ 4.527142] usb usb2: Manufacturer: Linux 3.14.0-rc4-bone0 musb-hcd
[ 4.533728] usb usb2: SerialNumber: musb-hdrc.1.auto
[ 4.539624] hub 2-0:1.0: USB hub found
[ 4.543608] hub 2-0:1.0: 1 port detected
[ 4.607413] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 4.613818] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[ 4.625928] libphy: 4a101000.mdio: probed
[ 4.630262] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver unknown
[ 4.639433] Detected MACID = 90:59:af:67:76:79
[ 4.645239] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 4.657856] Freeing unused kernel memory: 456K (c0a03000 - c0a75000)
[ 4.738452] systemd-udevd[93]: starting version 204
[ 6.770596] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 7.240923] random: nonblocking pool is initialized
[ 8.052167] systemd-udevd[286]: starting version 204
[ 8.657859] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[ 8.665312] 44e3e000.rtc: already running
[ 8.972324] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[ 9.049802] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[ 11.382842] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[ 11.579978] EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro
[ 13.628596] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 15.375406] net eth0: initializing cpsw version 1.12 (0)
[ 15.457818] net eth0: phy found : id is : 0x7c0f1
[ 15.462849] libphy: PHY 4a101000.mdio:01 not found
[ 15.467910] net eth0: phy 4a101000.mdio:01 not found on slave 1
[ 15.480841] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 17.458011] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
[ 17.463997] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 25.523992] Installing knfsd (copyright (C) 1996 okir@xxxxxxxxxxxx).
[ 29.696165] using random self ethernet address
[ 29.701012] using random host ethernet address
[ 29.705721] using random self ethernet address
[ 29.710439] using random host ethernet address
[ 29.715994] usb0: HOST MAC 62:a6:c6:a2:01:d0
[ 29.720647] usb0: MAC 26:c2:ca:6b:cf:ae
[ 29.772727] Number of LUNs=8
[ 29.775782] Mass Storage Function, version: 2009/09/11
[ 29.781293] LUN: removable file: (no medium)
[ 29.785792] Number of LUNs=1
[ 29.788998] LUN: removable file: /dev/mmcblk0p1
[ 29.793751] Number of LUNs=1
[ 29.864701] g_multi gadget: Multifunction Composite Gadget
[ 29.870599] g_multi gadget: g_multi ready
[ 32.498385] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 94.655817] systemd-logind[2266]: New seat seat0.
[ 94.670510] systemd-logind[2266]: New session 1 of user msmucr.
[ 102.032067] musb-hdrc musb-hdrc.1.auto: VBUS_ERROR in a_wait_bcon (99, VALID), retry #1, port1 00000104
[ 102.456350] usb 2-1: new high-speed USB device number 2 using musb-hdrc
[ 102.746703] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x2 has invalid maxpacket 1024
[ 102.758022] usb 2-1: device v04b4 p930b is not supported
[ 102.763646] usb 2-1: New USB device found, idVendor=04b4, idProduct=930b
[ 102.770837] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 102.778400] usb 2-1: Product: USB-SPDIF
[ 102.782449] usb 2-1: Manufacturer: M2TECH
[ 102.788459] usb 2-1: config 0 descriptor??
[ 103.046836] usbcore: registered new interface driver snd-usb-hiface
[ 126.292477] CAUTION: musb: Babble Interrupt Occurred
[ 155.381764] ------------[ cut here ]------------
[ 155.386721] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 155.396868] Could not flush host TX14 fifo: csr: 2403
[ 155.402178] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 155.429898] CPU: 0 PID: 2303 Comm: speaker-test Not tainted 3.14.0-rc4-bone0 #1
[ 155.437651] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 155.445821] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 155.453440] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 155.461964] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 155.471126] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 155.480293] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511b00>] (musb_cleanup_urb.isra.7+0x84/0xe4)
[ 155.490003] [<c0511b00>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 155.499451] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 155.508346] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 155.516898] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 155.527387] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 155.539911] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 155.552062] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 155.563414] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 155.572138] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 155.579666] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 155.588011] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 155.596154] ---[ end trace 19c84223d0d94f79 ]---
[ 156.599662] ------------[ cut here ]------------
[ 156.604542] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 156.614684] Could not flush host TX14 fifo: csr: 2403
[ 156.619992] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 156.647682] CPU: 0 PID: 2303 Comm: speaker-test Tainted: G W 3.14.0-rc4-bone0 #1
[ 156.656398] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 156.664559] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 156.672170] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 156.680694] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 156.689857] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 156.699023] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511290>] (musb_start_urb+0x278/0x848)
[ 156.708094] [<c0511290>] (musb_start_urb) from [<c0511b58>] (musb_cleanup_urb.isra.7+0xdc/0xe4)
[ 156.717257] [<c0511b58>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 156.726695] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 156.735588] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 156.744127] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 156.754585] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 156.767036] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 156.779178] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 156.790516] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 156.799227] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 156.806754] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 156.815096] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 156.823237] ---[ end trace 19c84223d0d94f7a ]---
[ 157.827479] ------------[ cut here ]------------
[ 157.832391] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 157.842535] Could not flush host TX14 fifo: csr: 2403
[ 157.847844] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 157.875541] CPU: 0 PID: 2303 Comm: speaker-test Tainted: G W 3.14.0-rc4-bone0 #1
[ 157.884268] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 157.892431] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 157.900043] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 157.908566] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 157.917730] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 157.926894] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511b00>] (musb_cleanup_urb.isra.7+0x84/0xe4)
[ 157.936603] [<c0511b00>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 157.946043] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 157.954933] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 157.963475] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 157.973934] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 157.986409] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 157.998550] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 158.009896] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 158.018614] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 158.026140] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 158.034484] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 158.042624] ---[ end trace 19c84223d0d94f7b ]---
[ 159.046130] ------------[ cut here ]------------
[ 159.051006] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 159.061148] Could not flush host TX14 fifo: csr: 2403
[ 159.066453] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 159.094141] CPU: 0 PID: 2303 Comm: speaker-test Tainted: G W 3.14.0-rc4-bone0 #1
[ 159.102855] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 159.111015] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 159.118627] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 159.127149] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 159.136312] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 159.145475] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511290>] (musb_start_urb+0x278/0x848)
[ 159.154546] [<c0511290>] (musb_start_urb) from [<c0511b58>] (musb_cleanup_urb.isra.7+0xdc/0xe4)
[ 159.163708] [<c0511b58>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 159.173146] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 159.182035] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 159.190573] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 159.201031] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 159.213478] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 159.225618] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 159.236954] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 159.245665] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 159.253190] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 159.261532] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 159.269671] ---[ end trace 19c84223d0d94f7c ]---
[ 160.274155] ------------[ cut here ]------------
[ 160.279062] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 160.289207] Could not flush host TX14 fifo: csr: 2403
[ 160.294515] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 160.322211] CPU: 0 PID: 2303 Comm: speaker-test Tainted: G W 3.14.0-rc4-bone0 #1
[ 160.330936] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 160.339099] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 160.346711] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 160.355233] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 160.364396] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 160.373560] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511b00>] (musb_cleanup_urb.isra.7+0x84/0xe4)
[ 160.383268] [<c0511b00>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 160.392708] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 160.401598] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 160.410139] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 160.420598] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 160.433067] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 160.445208] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 160.456550] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 160.465265] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 160.472791] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 160.481134] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 160.489274] ---[ end trace 19c84223d0d94f7d ]---
[ 161.492779] ------------[ cut here ]------------
[ 161.497657] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 161.507797] Could not flush host TX14 fifo: csr: 2403
[ 161.513104] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 161.540790] CPU: 0 PID: 2303 Comm: speaker-test Tainted: G W 3.14.0-rc4-bone0 #1
[ 161.549504] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 161.557663] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 161.565274] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 161.573796] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 161.582958] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 161.592121] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511290>] (musb_start_urb+0x278/0x848)
[ 161.601194] [<c0511290>] (musb_start_urb) from [<c0511b58>] (musb_cleanup_urb.isra.7+0xdc/0xe4)
[ 161.610356] [<c0511b58>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 161.619794] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 161.628684] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 161.637220] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 161.647678] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 161.660125] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 161.672263] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 161.683600] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 161.692310] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 161.699835] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 161.708178] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 161.716318] ---[ end trace 19c84223d0d94f7e ]---
[ 162.720549] ------------[ cut here ]------------
[ 162.725446] WARNING: CPU: 0 PID: 2303 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x58/0x84()
[ 162.735591] Could not flush host TX14 fifo: csr: 2403
[ 162.740899] Modules linked in: snd_usb_hiface snd_pcm snd_seq snd_seq_device snd_timer snd soundcore usb_f_acm u_serial usb_f_ecm g_multi usb_f_mass_storage usb_f_rndis u_ether libcomposite rpcsec_gss_krb5 nfsd omap_aes omap_sham ti_am335x_adc kfifo_buf rtc_omap industrialio uio_pdrv_genirq uio
[ 162.768589] CPU: 0 PID: 2303 Comm: speaker-test Tainted: G W 3.14.0-rc4-bone0 #1
[ 162.777312] [<c00142fc>] (unwind_backtrace) from [<c0011070>] (show_stack+0x10/0x14)
[ 162.785474] [<c0011070>] (show_stack) from [<c06db2a8>] (dump_stack+0x70/0x8c)
[ 162.793086] [<c06db2a8>] (dump_stack) from [<c003a2d8>] (warn_slowpath_common+0x64/0x88)
[ 162.801609] [<c003a2d8>] (warn_slowpath_common) from [<c003a328>] (warn_slowpath_fmt+0x2c/0x3c)
[ 162.810770] [<c003a328>] (warn_slowpath_fmt) from [<c0510b34>] (musb_h_tx_flush_fifo+0x58/0x84)
[ 162.819935] [<c0510b34>] (musb_h_tx_flush_fifo) from [<c0511b00>] (musb_cleanup_urb.isra.7+0x84/0xe4)
[ 162.829644] [<c0511b00>] (musb_cleanup_urb.isra.7) from [<c0511c54>] (musb_urb_dequeue+0xf4/0x114)
[ 162.839084] [<c0511c54>] (musb_urb_dequeue) from [<c04f9d08>] (usb_hcd_unlink_urb+0x5c/0x7c)
[ 162.847977] [<c04f9d08>] (usb_hcd_unlink_urb) from [<c04faba4>] (usb_kill_urb+0x50/0xc4)
[ 162.856516] [<c04faba4>] (usb_kill_urb) from [<bf149554>] (hiface_pcm_stream_stop+0x4c/0x5c [snd_usb_hiface])
[ 162.866976] [<bf149554>] (hiface_pcm_stream_stop [snd_usb_hiface]) from [<bf14959c>] (hiface_pcm_close+0x38/0x64 [snd_usb_hiface])
[ 162.879435] [<bf14959c>] (hiface_pcm_close [snd_usb_hiface]) from [<bf12b518>] (snd_pcm_release_substream+0x54/0xa4 [snd_pcm])
[ 162.891575] [<bf12b518>] (snd_pcm_release_substream [snd_pcm]) from [<bf12b598>] (snd_pcm_release+0x30/0x7c [snd_pcm])
[ 162.902915] [<bf12b598>] (snd_pcm_release [snd_pcm]) from [<c012ab5c>] (__fput+0xd4/0x1dc)
[ 162.911628] [<c012ab5c>] (__fput) from [<c0055594>] (task_work_run+0xb0/0xc8)
[ 162.919154] [<c0055594>] (task_work_run) from [<c0010af8>] (do_work_pending+0x88/0x9c)
[ 162.927496] [<c0010af8>] (do_work_pending) from [<c000d980>] (work_pending+0xc/0x20)
[ 162.935637] ---[ end trace 19c84223d0d94f7f ]---
