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@alexmullins
Last active March 28, 2017 02:48
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kernel panic trying to unload univ-bbgw with "echo -5 > $SLOTS"
root@beaglebone:/sys/class/pwm/pwmchip0/pwm1# cat $SLOTS
0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
4: P-O-L- 0 Override Board Name,00A0,Override Manuf,BB-PWM1
5: P-O-L- 1 Override Board Name,00A0,Override Manuf,univ-bbgw
root@beaglebone:/sys/class/pwm/pwmchip0/pwm1# echo -4 > $SLOTS
root@beaglebone:/sys/class/pwm/pwmchip0/pwm1# cat $SLOTS
0: PF---- -1
1: PF---- -1
2: PF---- -1
3: PF---- -1
5: P-O-L- 1 Override Board Name,00A0,Override Manuf,univ-bbgw
root@beaglebone:/sys/class/pwm/pwmchip0/pwm1# echo -5 > $SLOTS
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.500908] Internal error: Oops: 17 [#1] SMP ARM
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.633883] Process bash (pid: 2891, stack limit = 0xdb5c6218)
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.639744] Stack: (0xdb5c7b60 to 0xdb5c8000)
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.644134] 7b60: c0030250 db798210 db798210 c0f97140 db5c7b94 db5c7b80 c0030270 c00301bc
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.652358] 7b80: c0030250 db798210 db5c7bac db5c7b98 c06f17e0 c003025c 00400100 db798210
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.660584] 7ba0: db5c7bc4 db5c7bb0 c06f188c c06f17a4 dc1f0c10 c0030250 db5c7c1c db5c7bc8
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.668809] 7bc0: c06f2b34 c06f1838 dc1f0c10 c0f97a88 db798298 db5c6008 c023da9c c024080c
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.677035] 7be0: db5c7c04 db5c7bf0 c05d8fb8 dc8ba637 dc01fa5d db798210 00000004 db798274
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.685259] 7c00: 60000013 db798218 dc1f0c10 db37bd00 db5c7c3c db5c7c20 c06f2ed4 c06f2740
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.693483] 7c20: db798210 bf46a2e8 c102a9f8 c11406a4 db5c7c54 db5c7c40 c06e7504 c06f2e70
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.701708] 7c40: db798244 db798210 db5c7c6c db5c7c58 c06e7600 c06e74d0 dc01fa30 db798210
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.709932] 7c60: db5c7c8c db5c7c70 c06e62a0 c06e75e0 00000000 db798200 db798210 c0f97a88
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.718156] 7c80: db5c7ccc db5c7c90 c06e2778 c06e61b0 db5ca140 c0a54340 db5c7cc4 db5c7ca8
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.726380] 7ca0: c0a54350 dc8ba637 db798200 db798200 db798200 ffffffff 00000000 c103a0f0
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.734605] 7cc0: db5c7cec db5c7cd0 c06e93a0 c06e2658 c102a9f8 db798200 db798200 00000005
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.742829] 7ce0: db5c7d04 db5c7cf0 c06e9428 c06e9388 c102a9f8 db798210 db5c7d1c db5c7d08
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.751055] 7d00: c08b4264 c06e9418 dc8ba637 c0f97a88 db5c7d44 db5c7d20 c08b4704 c08b41d4
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.759280] 7d20: c0827ca8 dc8ba637 ffffffff db5c7db0 00000005 ffffffff db5c7d6c db5c7d48
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.767504] 7d40: c0065fcc c08b4684 ffffffff c104b328 db5c7db0 00000005 c1077bd8 daacfc20
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.775729] 7d60: db5c7d94 db5c7d70 c0066428 c0065f84 00000000 da9d9f30 c0f97a88 df946c18
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.783953] 7d80: 00000000 c0f97a88 db5c7dac db5c7d98 c0066468 c00663dc 00000000 c05bd684
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.792178] 7da0: db5c7dd4 db5c7db0 c08b596c c006644c df946a3c df946c18 db5e7640 dc8ba637
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.800401] 7dc0: c0f97a88 db5c7de4 db5c7e14 db5c7dd8 c08b59f0 c08b58f4 daacfc20 db37bd00
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.808626] 7de0: db5c7e14 db5e7800 db5e7600 00000005 df946a3c df946c18 db5e7640 dc8ba637
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.816851] 7e00: db5e7700 db251598 db5c7e5c db5c7e18 c08b6594 c08b5990 c024080c db5da1c0
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.825074] 7e20: db251598 00000002 da9d9f00 00000000 00000000 dc8ba637 db5c7e5c db251580
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.833299] 7e40: 00000001 db2515a0 db251598 dc218e10 db5c7e7c db5c7e60 c08bc0e4 c08b64fc
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.841524] 7e60: db0be410 dc218e10 00000004 db5ed8c0 db5c7e94 db5c7e80 c071118c c08bc058
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.849748] 7e80: db0be410 c0f97a88 db5c7ecc db5c7e98 c0711a20 c0711118 00000004 024000c0
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.857973] 7ea0: 00000005 dc8ba637 db5ed8c0 db37bd0c 00000003 db5c7f70 00000000 00000000
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.866198] 7ec0: db5c7edc db5c7ed0 c06e17b0 c071177c db5c7ef4 db5c7ee0 c023f10c c06e1794
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.874422] 7ee0: c023f0b8 db5ed8c0 db5c7f2c db5c7ef8 c023e89c c023f0c4 00000000 00000000
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.882646] 7f00: c01c36a4 db7df0c0 00000003 0198cc08 db5c7f70 0198cc08 db5c6000 00000000
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.890871] 7f20: db5c7f3c db5c7f30 c01c3098 c023e7e0 db5c7f6c db5c7f40 c01c396c c01c307c
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.899095] 7f40: 00000000 c01e3068 db7df0c0 c0f97a88 db7df0c0 00000003 0198cc08 db5c6000
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.907319] 7f60: db5c7fa4 db5c7f70 c01c4374 c01c38d8 00000000 00000000 db596180 dc8ba637
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.915543] 7f80: 00000000 00000003 0198cc08 b6f30b50 00000004 c0011024 00000000 db5c7fa8
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.923768] 7fa0: c0010e60 c01c431c 00000003 0198cc08 00000001 0198cc08 00000003 00000000
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.931991] 7fc0: 00000003 0198cc08 b6f30b50 00000004 00000003 00000000 000c5758 00000000
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 380.940216] 7fe0: 00000000 befdb914 b6e93c85 b6ecef26 40000030 00000001 9fde6861 9fde6c61
Message from syslogd@beaglebone at Mar 28 02:36:21 ...
kernel:[ 381.200893] Code: e8bd4000 e3500000 159061bc 01a06000 (e5d6300d)
debian@beaglebone:~$ dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Initializing cgroup subsys cpuacct
[ 0.000000] Linux version 4.4.55-ti-r94 (root@b3-jetson-tk1-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1 SMP Tue Mar 21 09:54:06 UTC 2017
[ 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 Green Wireless
[ 0.000000] cma: Reserved 48 MiB at 0x9c800000
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 130560
[ 0.000000] free_area_init_node: node 0, pgdat c105f300, node_mem_map df961000
[ 0.000000] Normal zone: 1152 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 130560 pages, LIFO batch:31
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (sgx neon )
[ 0.000000] PERCPU: Embedded 13 pages/cpu @df920000 s24320 r8192 d20736 u53248
[ 0.000000] pcpu-alloc: s24320 r8192 d20736 u53248 alloc=13*4096
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129408
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/mmcblk0p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet cape_universal=enable
[ 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] Memory: 444668K/522240K available (11374K kernel code, 917K rwdata, 3800K rodata, 744K init, 907K bss, 28420K reserved, 49152K cma-reserved, 0K highmem)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xe0800000 - 0xff800000 ( 496 MB)
lowmem : 0xc0000000 - 0xe0000000 ( 512 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc0ed9b54 (15175 kB)
.init : 0xc0eda000 - 0xc0f94000 ( 744 kB)
.data : 0xc0f94000 - 0xc10795d0 ( 918 kB)
.bss : 0xc107c000 - 0xc115efa8 ( 908 kB)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] Build-time adjustment of leaf fanout to 32.
[ 0.000000] RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=32, 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] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000014] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000037] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000049] OMAP clocksource: timer1 at 24000000 Hz
[ 0.001031] clocksource_probe: no matching clocksources found
[ 0.001237] Console: colour dummy device 80x30
[ 0.001266] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.001273] This ensures that you still see kernel messages. Please
[ 0.001280] update your kernel commandline.
[ 0.001300] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
[ 0.046803] pid_max: default: 32768 minimum: 301
[ 0.046951] Security Framework initialized
[ 0.046965] Yama: becoming mindful.
[ 0.047001] AppArmor: AppArmor disabled by boot time parameter
[ 0.047181] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.047194] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.048052] Initializing cgroup subsys io
[ 0.048085] Initializing cgroup subsys memory
[ 0.048132] Initializing cgroup subsys devices
[ 0.048151] Initializing cgroup subsys freezer
[ 0.048167] Initializing cgroup subsys net_cls
[ 0.048182] Initializing cgroup subsys perf_event
[ 0.048197] Initializing cgroup subsys net_prio
[ 0.048222] Initializing cgroup subsys pids
[ 0.048280] CPU: Testing write buffer coherency: ok
[ 0.048342] ftrace: allocating 34653 entries in 102 pages
[ 0.146445] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[ 0.146566] Setting up static identity map for 0x80008280 - 0x800082e0
[ 0.150683] Brought up 1 CPUs
[ 0.150708] SMP: Total of 1 processors activated (995.32 BogoMIPS).
[ 0.150716] CPU: All CPU(s) started in SVC mode.
[ 0.152371] devtmpfs: initialized
[ 0.171261] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.191002] omap_hwmod: debugss: _wait_target_disable failed
[ 0.244980] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.245015] futex hash table entries: 256 (order: 2, 16384 bytes)
[ 0.249049] xor: measuring software checksum speed
[ 0.286803] arm4regs : 1219.000 MB/sec
[ 0.326797] 8regs : 1091.000 MB/sec
[ 0.366797] 32regs : 1089.000 MB/sec
[ 0.406796] neon : 1739.000 MB/sec
[ 0.406804] xor: using function: neon (1739.000 MB/sec)
[ 0.406923] pinctrl core: initialized pinctrl subsystem
[ 0.408964] NET: Registered protocol family 16
[ 0.412669] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[ 0.413914] cpuidle: using governor ladder
[ 0.413937] cpuidle: using governor menu
[ 0.419767] OMAP GPIO hardware version 0.1
[ 0.422281] GPIO line 112 (MCASP0_AXR0) hogged as output/low
[ 0.431479] No ATAGs?
[ 0.431512] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.432048] omap4_sram_init:Unable to allocate sram needed to handle errata I688
[ 0.432063] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[ 0.511058] raid6: int32x1 gen() 230 MB/s
[ 0.578808] raid6: int32x1 xor() 175 MB/s
[ 0.646974] raid6: int32x2 gen() 304 MB/s
[ 0.714835] raid6: int32x2 xor() 198 MB/s
[ 0.782931] raid6: int32x4 gen() 284 MB/s
[ 0.850906] raid6: int32x4 xor() 199 MB/s
[ 0.918907] raid6: int32x8 gen() 282 MB/s
[ 0.986923] raid6: int32x8 xor() 186 MB/s
[ 1.054828] raid6: neonx1 gen() 1464 MB/s
[ 1.122828] raid6: neonx1 xor() 846 MB/s
[ 1.190812] raid6: neonx2 gen() 1884 MB/s
[ 1.258797] raid6: neonx2 xor() 1174 MB/s
[ 1.326825] raid6: neonx4 gen() 1928 MB/s
[ 1.394811] raid6: neonx4 xor() 1205 MB/s
[ 1.462846] raid6: neonx8 gen() 1188 MB/s
[ 1.530803] raid6: neonx8 xor() 844 MB/s
[ 1.530811] raid6: using algorithm neonx4 gen() 1928 MB/s
[ 1.530818] raid6: .... xor() 1205 MB/s, rmw enabled
[ 1.530826] raid6: using intx1 recovery algorithm
[ 1.540358] edma 49000000.edma: TI EDMA DMA engine driver
[ 1.545351] SCSI subsystem initialized
[ 1.545784] libata version 3.00 loaded.
[ 1.546123] usbcore: registered new interface driver usbfs
[ 1.546200] usbcore: registered new interface driver hub
[ 1.546322] usbcore: registered new device driver usb
[ 1.547004] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
[ 1.547059] omap_i2c 4819c000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c2_pins, deferring probe
[ 1.547181] media: Linux media interface: v0.10
[ 1.547247] Linux video capture interface: v2.00
[ 1.547361] pps_core: LinuxPPS API ver. 1 registered
[ 1.547370] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 1.547399] PTP clock support registered
[ 1.548323] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 1.549763] NetLabel: Initializing
[ 1.549781] NetLabel: domain hash size = 128
[ 1.549788] NetLabel: protocols = UNLABELED CIPSOv4
[ 1.549862] NetLabel: unlabeled traffic allowed by default
[ 1.550284] clocksource: Switched to clocksource timer1
[ 1.661768] NET: Registered protocol family 2
[ 1.662728] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[ 1.662786] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[ 1.662846] TCP: Hash tables configured (established 4096 bind 4096)
[ 1.662927] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 1.662948] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 1.663278] NET: Registered protocol family 1
[ 1.663882] RPC: Registered named UNIX socket transport module.
[ 1.663897] RPC: Registered udp transport module.
[ 1.663904] RPC: Registered tcp transport module.
[ 1.663910] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 1.664560] Unpacking initramfs...
[ 2.055753] Freeing initrd memory: 5212K (cfae9000 - d0000000)
[ 2.056549] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 2.059490] audit: initializing netlink subsys (disabled)
[ 2.059600] audit: type=2000 audit(1.996:1): initialized
[ 2.070381] zbud: loaded
[ 2.071119] VFS: Disk quotas dquot_6.6.0
[ 2.071420] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 2.074125] NFS: Registering the id_resolver key type
[ 2.074215] Key type id_resolver registered
[ 2.074223] Key type id_legacy registered
[ 2.074348] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 2.074744] fuse init (API version 7.23)
[ 2.075395] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[ 2.084041] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[ 2.084312] io scheduler noop registered
[ 2.084330] io scheduler deadline registered
[ 2.084404] io scheduler cfq registered (default)
[ 2.085771] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[ 2.087778] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[ 2.089106] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[ 2.092607] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 158, base_baud = 3000000) is a 8250
[ 2.106068] console [ttyS0] enabled
[ 2.107188] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 159, base_baud = 3000000) is a 8250
[ 2.108691] [drm] Initialized drm 1.1.0 20060810
[ 2.113761] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.113808] ehci-platform: EHCI generic platform driver
[ 2.113989] ehci-omap: OMAP-EHCI Host Controller driver
[ 2.114651] usbcore: registered new interface driver usb-storage
[ 2.116866] 47401300.usb-phy supply vcc not found, using dummy regulator
[ 2.119594] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 2.119615] musb-hdrc: MHDRC RTL version 2.0
[ 2.119625] musb-hdrc: setup fifo_mode 4
[ 2.119644] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 2.121287] 47401b00.usb-phy supply vcc not found, using dummy regulator
[ 2.123722] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 2.123740] musb-hdrc: MHDRC RTL version 2.0
[ 2.123748] musb-hdrc: setup fifo_mode 4
[ 2.123763] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 2.123922] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 2.123957] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[ 2.124301] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 2.124314] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 2.124324] usb usb1: Product: MUSB HDRC host driver
[ 2.124333] usb usb1: Manufacturer: Linux 4.4.55-ti-r94 musb-hcd
[ 2.124342] usb usb1: SerialNumber: musb-hdrc.1.auto
[ 2.125279] hub 1-0:1.0: USB hub found
[ 2.125341] hub 1-0:1.0: 1 port detected
[ 2.135723] mousedev: PS/2 mouse device common for all mice
[ 2.138173] omap_rtc 44e3e000.rtc: rtc core: registered 44e3e000.rtc as rtc0
[ 2.139189] i2c /dev entries driver
[ 2.140811] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 2.141230] cpuidle: enable-method property 'ti,am3352' found operations
[ 2.141908] omap_hsmmc 48060000.mmc: Got CD GPIO
[ 2.242944] mmc0: host does not support reading read-only switch, assuming write-enable
[ 2.246709] mmc0: new high speed SDHC card at address aaaa
[ 2.247686] mmcblk0: mmc0:aaaa SL16G 14.8 GiB
[ 2.249302] mmcblk0: p1
[ 2.288011] mmc1: MAN_BKOPS_EN bit is not set
[ 2.291362] mmc1: new high speed MMC card at address 0001
[ 2.292327] mmcblk1: mmc1:0001 Q2J54A 3.64 GiB
[ 2.292749] mmcblk1boot0: mmc1:0001 Q2J54A partition 1 2.00 MiB
[ 2.293156] mmcblk1boot1: mmc1:0001 Q2J54A partition 2 2.00 MiB
[ 2.294764] mmcblk1: p1
[ 2.315940] hidraw: raw HID events driver (C) Jiri Kosina
[ 2.316843] usbcore: registered new interface driver usbhid
[ 2.316856] usbhid: USB HID core driver
[ 2.318358] ashmem: initialized
[ 2.319232] remoteproc0: wkup_m3 is available
[ 2.319248] remoteproc0: Note: remoteproc is still under development and considered experimental.
[ 2.319256] remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[ 2.323640] omap_hsmmc 47810000.mmc: card claims to support voltages below defined range
[ 2.325120] NET: Registered protocol family 10
[ 2.326863] mip6: Mobile IPv6
[ 2.326894] NET: Registered protocol family 17
[ 2.327047] Key type dns_resolver registered
[ 2.327122] mpls_gso: MPLS GSO support
[ 2.327461] omap_voltage_late_init: Voltage driver support not added
[ 2.335466] PM: Cannot get wkup_m3_ipc handle
[ 2.340046] ThumbEE CPU extension supported.
[ 2.340079] Registering SWP/SWPB emulation handler
[ 2.341306] registered taskstats version 1
[ 2.341532] zswap: loaded using pool lzo/zbud
[ 2.346622] mmc2: queuing unknown CIS tuple 0x91 (3 bytes)
[ 2.347711] mmc2: new high speed SDIO card at address 0001
[ 2.350172] Btrfs loaded
[ 2.374220] Key type encrypted registered
[ 2.377414] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/input/input0
[ 2.400527] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[ 2.401140] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 2.401197] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 2.403376] at24 2-0054: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 2.403804] at24 2-0055: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 2.404197] at24 2-0056: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 2.404580] at24 2-0057: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[ 2.404624] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[ 2.405910] remoteproc0: powering up wkup_m3
[ 2.405986] remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217148
[ 2.406247] remoteproc0: remote processor wkup_m3 is now up
[ 2.406345] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x192
[ 2.411981] bone_capemgr bone_capemgr: Baseboard: 'A335BNLT,GW1A,BBGW16062420'
[ 2.412015] bone_capemgr bone_capemgr: compatible-baseboard=ti,beaglebone-black - #slots=4
[ 2.450296] bone_capemgr bone_capemgr: slot #0: No cape found
[ 2.490302] bone_capemgr bone_capemgr: slot #1: No cape found
[ 2.514305] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 2.530293] bone_capemgr bone_capemgr: slot #2: No cape found
[ 2.554339] bone_capemgr bone_capemgr: Invalid signature 'ffffffff' at slot 3
[ 2.561545] bone_capemgr bone_capemgr: slot #3: No cape found
[ 2.561655] bone_capemgr bone_capemgr: initialized OK.
[ 2.564110] PM: bootloader does not support rtc-only!
[ 2.565121] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:00 UTC (946684800)
[ 2.565152] of_cfs_init
[ 2.565280] of_cfs_init: OK
[ 2.571145] PM: Hibernation image not present or could not be loaded.
[ 2.572750] Freeing unused kernel memory: 744K (c0eda000 - c0f94000)
[ 2.644103] usb 1-1: New USB device found, idVendor=05e3, idProduct=0610
[ 2.644127] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 2.644137] usb 1-1: Product: USB2.0 Hub
[ 2.645398] hub 1-1:1.0: USB hub found
[ 2.645790] hub 1-1:1.0: 4 ports detected
[ 2.694210] random: systemd-udevd: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.695440] random: systemd-udevd: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.695580] random: systemd-udevd: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.708941] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.709390] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.709569] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.710578] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.711306] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.711861] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 2.712484] random: udevadm: uninitialized urandom read (16 bytes read, 18 bits of entropy available)
[ 4.916954] ti-pruss 4a300000.pruss: creating PRU cores and other child platform devices
[ 4.918211] irq: no irq domain found for /ocp/pruss@4a300000/intc@4a320000 !
[ 4.935470] irq: no irq domain found for /ocp/pruss@4a300000/intc@4a320000 !
[ 4.969083] remoteproc1: 4a334000.pru0 is available
[ 4.969111] remoteproc1: Note: remoteproc is still under development and considered experimental.
[ 4.969119] remoteproc1: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[ 4.969407] remoteproc1: Direct firmware load for am335x-pru0-fw failed with error -2
[ 4.969428] remoteproc1: failed to load am335x-pru0-fw
[ 5.000453] pru-rproc 4a334000.pru0: booting the PRU core manually
[ 5.000487] remoteproc1: powering up 4a334000.pru0
[ 5.000596] remoteproc1: Direct firmware load for am335x-pru0-fw failed with error -2
[ 5.000614] remoteproc1: request_firmware failed: -2
[ 5.005841] pru-rproc 4a334000.pru0: rproc_boot failed
[ 5.110655] remoteproc1: releasing 4a334000.pru0
[ 5.110836] pru-rproc: probe of 4a334000.pru0 failed with error -2
[ 5.111232] remoteproc1: 4a338000.pru1 is available
[ 5.111245] remoteproc1: Note: remoteproc is still under development and considered experimental.
[ 5.111253] remoteproc1: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[ 5.111512] remoteproc1: Direct firmware load for am335x-pru1-fw failed with error -2
[ 5.111532] remoteproc1: failed to load am335x-pru1-fw
[ 5.124514] pru-rproc 4a338000.pru1: booting the PRU core manually
[ 5.124545] remoteproc1: powering up 4a338000.pru1
[ 5.124647] remoteproc1: Direct firmware load for am335x-pru1-fw failed with error -2
[ 5.124664] remoteproc1: request_firmware failed: -2
[ 5.129882] pru-rproc 4a338000.pru1: rproc_boot failed
[ 5.246611] remoteproc1: releasing 4a338000.pru1
[ 5.246789] pru-rproc: probe of 4a338000.pru1 failed with error -2
[ 6.579133] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[ 7.107449] systemd[1]: System time before build time, advancing clock.
[ 7.159050] systemd[1]: Failed to insert module 'kdbus': Function not implemented
[ 7.202196] systemd[1]: systemd 230 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[ 7.203141] systemd[1]: Detected architecture arm.
[ 7.204601] systemd[1]: Set hostname to <beaglebone>.
[ 7.815063] systemd[1]: Created slice User and Session Slice.
[ 7.816005] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 7.816396] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ 7.816691] systemd[1]: Listening on Syslog Socket.
[ 7.816966] systemd[1]: Listening on udev Kernel Socket.
[ 7.817099] systemd[1]: Reached target Remote File Systems (Pre).
[ 7.817443] systemd[1]: Listening on Journal Socket.
[ 7.818636] systemd[1]: Created slice System Slice.
[ 7.822829] systemd[1]: Mounting /sys/kernel/debug...
[ 7.832171] systemd[1]: Mounting POSIX Message Queue File System...
[ 7.913301] systemd[1]: Starting Load Kernel Modules...
[ 7.938852] systemd[1]: Created slice system-serial\x2dgetty.slice.
[ 7.940178] systemd[1]: Created slice system-getty.slice.
[ 7.940664] systemd[1]: Listening on Journal Socket (/dev/log).
[ 7.941093] systemd[1]: Listening on udev Control Socket.
[ 7.941599] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[ 7.951782] systemd[1]: Listening on Journal Audit Socket.
[ 7.956973] systemd[1]: Starting Journal Service...
[ 7.991291] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 8.039793] systemd[1]: Reached target Encrypted Volumes.
[ 8.057210] systemd[1]: Starting Remount Root and Kernel File Systems...
[ 8.057929] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 8.058160] systemd[1]: Reached target Remote File Systems.
[ 8.095425] systemd[1]: Reached target Paths.
[ 8.144681] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[ 8.144825] systemd[1]: Reached target Swap.
[ 8.144963] systemd[1]: Reached target Slices.
[ 8.232164] systemd[1]: Mounted POSIX Message Queue File System.
[ 8.232515] systemd[1]: Mounted /sys/kernel/debug.
[ 8.252324] systemd[1]: Started Load Kernel Modules.
[ 8.264744] systemd[1]: Started Create list of required static device nodes for the current kernel.
[ 8.272974] EXT4-fs (mmcblk0p1): re-mounted. Opts: errors=remount-ro
[ 8.298749] systemd[1]: Started Remount Root and Kernel File Systems.
[ 8.325955] systemd[1]: Starting Load/Save Random Seed...
[ 8.361880] systemd[1]: Starting udev Coldplug all Devices...
[ 8.448155] systemd[1]: Starting Create Static Device Nodes in /dev...
[ 8.480679] systemd[1]: Mounting FUSE Control File System...
[ 8.614096] systemd[1]: Mounting Configuration File System...
[ 8.669964] systemd[1]: Starting Apply Kernel Variables...
[ 8.825266] systemd[1]: Mounted FUSE Control File System.
[ 8.849899] systemd[1]: Mounted Configuration File System.
[ 8.867321] systemd[1]: Started Journal Service.
[ 9.389756] systemd-journald[546]: Received request to flush runtime journal from PID 1
[ 10.074443] random: nonblocking pool is initialized
[ 16.141515] using random self ethernet address
[ 16.141547] using random host ethernet address
[ 16.233630] using random self ethernet address
[ 16.233663] using random host ethernet address
[ 16.376808] Mass Storage Function, version: 2009/09/11
[ 16.376841] LUN: removable file: (no medium)
[ 16.528155] usb0: HOST MAC 04:a3:16:ed:d8:82
[ 16.529637] usb0: MAC 04:a3:16:ed:d8:83
[ 16.544149] usb1: HOST MAC 04:a3:16:ed:d8:85
[ 16.544798] usb1: MAC 04:a3:16:ed:d8:86
[ 17.157587] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 17.338109] IPv6: ADDRCONF(NETDEV_UP): usb1: link is not ready
[ 25.196246] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20
[ 26.312702] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[ 26.366875] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[ 29.544624] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
[ 29.764938] wlcore: loaded
[ 30.264763] wlcore: PHY firmware version: Rev 8.2.0.0.236
[ 30.309114] wlcore: firmware booted (Rev 8.9.0.0.69)
[ 30.328532] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 31.034684] IPv6: ADDRCONF(NETDEV_UP): SoftAp0: link is not ready
[ 31.145014] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 31.179444] nf_conntrack version 0.5.0 (7809 buckets, 31236 max)
[ 31.484355] wlan0: authenticate with 84:61:a0:17:40:c0
[ 31.496053] wlan0: send auth to 84:61:a0:17:40:c0 (try 1/3)
[ 31.528868] wlan0: authenticated
[ 31.534024] wlan0: associate with 84:61:a0:17:40:c0 (try 1/3)
[ 31.538063] wlan0: RX AssocResp from 84:61:a0:17:40:c0 (capab=0x411 status=0 aid=3)
[ 31.555799] wlan0: associated
[ 31.555874] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 32.006513] wlcore: Association completed.
[ 32.536562] Bluetooth: Core ver 2.21
[ 32.536804] NET: Registered protocol family 31
[ 32.536817] Bluetooth: HCI device and connection manager initialized
[ 32.536846] Bluetooth: HCI socket layer initialized
[ 32.536863] Bluetooth: L2CAP socket layer initialized
[ 32.536913] Bluetooth: SCO socket layer initialized
[ 32.573602] Bluetooth: HCI UART driver ver 2.3
[ 32.573632] Bluetooth: HCI UART protocol H4 registered
[ 32.573640] Bluetooth: HCI UART protocol BCSP registered
[ 32.573647] Bluetooth: HCI UART protocol LL registered
[ 32.573654] Bluetooth: HCI UART protocol ATH3K registered
[ 32.573662] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 32.573959] Bluetooth: HCI UART protocol BCM registered
[ 32.573971] Bluetooth: HCI UART protocol QCA registered
[ 34.672277] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 34.672310] Bluetooth: BNEP filters: protocol multicast
[ 34.672348] Bluetooth: BNEP socket layer initialized
[ 63.999312] wlcore: down
[ 69.069806] IPv6: ADDRCONF(NETDEV_CHANGE): SoftAp0: link becomes ready
[ 137.129572] bone_capemgr bone_capemgr: part_number 'BB-PWM1', version 'N/A'
[ 137.129658] bone_capemgr bone_capemgr: slot #4: override
[ 137.129703] bone_capemgr bone_capemgr: Using override eeprom data at slot 4
[ 137.129752] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,BB-PWM1'
[ 137.167896] bone_capemgr bone_capemgr: slot #4: dtbo 'BB-PWM1-00A0.dtbo' loaded; overlay id #0
[ 316.691586] bone_capemgr bone_capemgr: part_number 'univ-bbgw', version 'N/A'
[ 316.691631] bone_capemgr bone_capemgr: slot #5: override
[ 316.691655] bone_capemgr bone_capemgr: Using override eeprom data at slot 5
[ 316.691681] bone_capemgr bone_capemgr: slot #5: 'Override Board Name,00A0,Override Manuf,univ-bbgw'
[ 317.004831] pinctrl-single 44e10800.pinmux: pin 44e10848.0 already requested by ocp:helper; cannot claim for ocp:P9_14_pinmux
[ 317.016362] pinctrl-single 44e10800.pinmux: pin-18 (ocp:P9_14_pinmux) status -22
[ 317.023865] pinctrl-single 44e10800.pinmux: could not request pin 18 (44e10848.0) from group pinmux_P9_14_default_pin on device pinctrl-single
[ 317.036820] bone-pinmux-helper ocp:P9_14_pinmux: Error applying setting, reverse things back
[ 317.096393] pinctrl-single 44e10800.pinmux: pin 44e10848.0 already requested by ocp:helper; cannot claim for ocp:P9_14_pinmux
[ 317.107929] pinctrl-single 44e10800.pinmux: pin-18 (ocp:P9_14_pinmux) status -22
[ 317.115428] pinctrl-single 44e10800.pinmux: could not request pin 18 (44e10848.0) from group pinmux_P9_14_default_pin on device pinctrl-single
[ 317.128382] bone-pinmux-helper ocp:P9_14_pinmux: Error applying setting, reverse things back
[ 317.136882] bone-pinmux-helper ocp:P9_14_pinmux: Failed to select default state
[ 317.205296] ------------[ cut here ]------------
[ 317.205361] WARNING: CPU: 0 PID: 4687 at drivers/base/devres.c:888 devm_kfree+0x44/0x48()
[ 317.205370] Modules linked in: pwm_tiehrpwm ipt_REJECT nf_reject_ipv4 xt_TCPMSS xt_REDIRECT nf_nat_redirect xt_tcpudp xt_mark iptable_mangle bnep hci_uart btbcm btqca bluetooth ccm iptable_filter xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables arc4 wl18xx wlcore mac80211 cfg80211 rfkill omap_aes_driver omap_sham omap_rng rng_core wlcore_sdio evdev uio_pdrv_genirq uio usb_f_mass_storage usb_f_acm u_serial usb_f_ecm usb_f_rndis u_ether libcomposite pru_rproc pruss_intc pruss
[ 317.205541] CPU: 0 PID: 4687 Comm: python Not tainted 4.4.55-ti-r94 #1
[ 317.205548] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 317.205590] [<c001ad48>] (unwind_backtrace) from [<c0015a50>] (show_stack+0x20/0x24)
[ 317.205616] [<c0015a50>] (show_stack) from [<c05bb178>] (dump_stack+0x9c/0xb0)
[ 317.205638] [<c05bb178>] (dump_stack) from [<c0042f44>] (warn_slowpath_common+0x98/0xc8)
[ 317.205653] [<c0042f44>] (warn_slowpath_common) from [<c0043078>] (warn_slowpath_null+0x2c/0x34)
[ 317.205667] [<c0043078>] (warn_slowpath_null) from [<c06eb880>] (devm_kfree+0x44/0x48)
[ 317.205690] [<c06eb880>] (devm_kfree) from [<c070ed24>] (bone_pinmux_helper_probe+0x1c8/0x268)
[ 317.205705] [<c070ed24>] (bone_pinmux_helper_probe) from [<c06e957c>] (platform_drv_probe+0x5c/0xc0)
[ 317.205720] [<c06e957c>] (platform_drv_probe) from [<c06e7104>] (driver_probe_device+0x240/0x47c)
[ 317.205733] [<c06e7104>] (driver_probe_device) from [<c06e74b8>] (__device_attach_driver+0x90/0x9c)
[ 317.205756] [<c06e74b8>] (__device_attach_driver) from [<c06e4e00>] (bus_for_each_drv+0x88/0xcc)
[ 317.205771] [<c06e4e00>] (bus_for_each_drv) from [<c06e6da8>] (__device_attach+0xd4/0x168)
[ 317.205784] [<c06e6da8>] (__device_attach) from [<c06e7628>] (device_initial_probe+0x1c/0x20)
[ 317.205795] [<c06e7628>] (device_initial_probe) from [<c06e619c>] (bus_probe_device+0x94/0x9c)
[ 317.205809] [<c06e619c>] (bus_probe_device) from [<c06e3d28>] (device_add+0x450/0x5f0)
[ 317.205831] [<c06e3d28>] (device_add) from [<c08b3cf0>] (of_device_add+0x44/0x4c)
[ 317.205848] [<c08b3cf0>] (of_device_add) from [<c08b4620>] (of_platform_device_create_pdata+0x94/0xc8)
[ 317.205863] [<c08b4620>] (of_platform_device_create_pdata) from [<c08b4758>] (of_platform_notify+0xe0/0x11c)
[ 317.205888] [<c08b4758>] (of_platform_notify) from [<c0065fcc>] (notifier_call_chain+0x54/0x94)
[ 317.205904] [<c0065fcc>] (notifier_call_chain) from [<c0066428>] (__blocking_notifier_call_chain+0x58/0x70)
[ 317.205918] [<c0066428>] (__blocking_notifier_call_chain) from [<c0066468>] (blocking_notifier_call_chain+0x28/0x30)
[ 317.205934] [<c0066468>] (blocking_notifier_call_chain) from [<c08b5a38>] (__of_changeset_entry_notify+0xb4/0x108)
[ 317.205949] [<c08b5a38>] (__of_changeset_entry_notify) from [<c08b63d4>] (__of_changeset_apply+0x98/0x170)
[ 317.205965] [<c08b63d4>] (__of_changeset_apply) from [<c08bbb94>] (__of_overlay_create+0x42c/0x618)
[ 317.205978] [<c08bbb94>] (__of_overlay_create) from [<c08bbda0>] (of_overlay_create+0x20/0x24)
[ 317.205991] [<c08bbda0>] (of_overlay_create) from [<c070fa48>] (capemgr_load_slot+0x3f4/0x5ec)
[ 317.206006] [<c070fa48>] (capemgr_load_slot) from [<c07118bc>] (slots_store+0x14c/0x328)
[ 317.206021] [<c07118bc>] (slots_store) from [<c06e17b0>] (dev_attr_store+0x28/0x34)
[ 317.206038] [<c06e17b0>] (dev_attr_store) from [<c023f10c>] (sysfs_kf_write+0x54/0x58)
[ 317.206053] [<c023f10c>] (sysfs_kf_write) from [<c023e89c>] (kernfs_fop_write+0xc8/0x1cc)
[ 317.206078] [<c023e89c>] (kernfs_fop_write) from [<c01c3098>] (__vfs_write+0x28/0x48)
[ 317.206094] [<c01c3098>] (__vfs_write) from [<c01c396c>] (vfs_write+0xa0/0x1a8)
[ 317.206106] [<c01c396c>] (vfs_write) from [<c01c4374>] (SyS_write+0x64/0xcc)
[ 317.206126] [<c01c4374>] (SyS_write) from [<c0010e60>] (ret_fast_syscall+0x0/0x44)
[ 317.206313] ---[ end trace 31ee799287d80d6b ]---
[ 317.214451] bone-pinmux-helper: probe of ocp:P9_14_pinmux failed with error -22
[ 317.220211] pinctrl-single 44e10800.pinmux: pin 44e1084c.0 already requested by ocp:helper; cannot claim for ocp:P9_16_pinmux
[ 317.231750] pinctrl-single 44e10800.pinmux: pin-19 (ocp:P9_16_pinmux) status -22
[ 317.239240] pinctrl-single 44e10800.pinmux: could not request pin 19 (44e1084c.0) from group pinmux_P9_16_default_pin on device pinctrl-single
[ 317.252219] bone-pinmux-helper ocp:P9_16_pinmux: Error applying setting, reverse things back
[ 317.327415] pinctrl-single 44e10800.pinmux: pin 44e1084c.0 already requested by ocp:helper; cannot claim for ocp:P9_16_pinmux
[ 317.338932] pinctrl-single 44e10800.pinmux: pin-19 (ocp:P9_16_pinmux) status -22
[ 317.346432] pinctrl-single 44e10800.pinmux: could not request pin 19 (44e1084c.0) from group pinmux_P9_16_default_pin on device pinctrl-single
[ 317.359399] bone-pinmux-helper ocp:P9_16_pinmux: Error applying setting, reverse things back
[ 317.367901] bone-pinmux-helper ocp:P9_16_pinmux: Failed to select default state
[ 317.434427] ------------[ cut here ]------------
[ 317.434492] WARNING: CPU: 0 PID: 4687 at drivers/base/devres.c:888 devm_kfree+0x44/0x48()
[ 317.434501] Modules linked in: pwm_tiehrpwm ipt_REJECT nf_reject_ipv4 xt_TCPMSS xt_REDIRECT nf_nat_redirect xt_tcpudp xt_mark iptable_mangle bnep hci_uart btbcm btqca bluetooth ccm iptable_filter xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables arc4 wl18xx wlcore mac80211 cfg80211 rfkill omap_aes_driver omap_sham omap_rng rng_core wlcore_sdio evdev uio_pdrv_genirq uio usb_f_mass_storage usb_f_acm u_serial usb_f_ecm usb_f_rndis u_ether libcomposite pru_rproc pruss_intc pruss
[ 317.434671] CPU: 0 PID: 4687 Comm: python Tainted: G W 4.4.55-ti-r94 #1
[ 317.434679] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 317.434720] [<c001ad48>] (unwind_backtrace) from [<c0015a50>] (show_stack+0x20/0x24)
[ 317.434747] [<c0015a50>] (show_stack) from [<c05bb178>] (dump_stack+0x9c/0xb0)
[ 317.434768] [<c05bb178>] (dump_stack) from [<c0042f44>] (warn_slowpath_common+0x98/0xc8)
[ 317.434783] [<c0042f44>] (warn_slowpath_common) from [<c0043078>] (warn_slowpath_null+0x2c/0x34)
[ 317.434798] [<c0043078>] (warn_slowpath_null) from [<c06eb880>] (devm_kfree+0x44/0x48)
[ 317.434821] [<c06eb880>] (devm_kfree) from [<c070ed24>] (bone_pinmux_helper_probe+0x1c8/0x268)
[ 317.434837] [<c070ed24>] (bone_pinmux_helper_probe) from [<c06e957c>] (platform_drv_probe+0x5c/0xc0)
[ 317.434851] [<c06e957c>] (platform_drv_probe) from [<c06e7104>] (driver_probe_device+0x240/0x47c)
[ 317.434865] [<c06e7104>] (driver_probe_device) from [<c06e74b8>] (__device_attach_driver+0x90/0x9c)
[ 317.434888] [<c06e74b8>] (__device_attach_driver) from [<c06e4e00>] (bus_for_each_drv+0x88/0xcc)
[ 317.434904] [<c06e4e00>] (bus_for_each_drv) from [<c06e6da8>] (__device_attach+0xd4/0x168)
[ 317.434916] [<c06e6da8>] (__device_attach) from [<c06e7628>] (device_initial_probe+0x1c/0x20)
[ 317.434928] [<c06e7628>] (device_initial_probe) from [<c06e619c>] (bus_probe_device+0x94/0x9c)
[ 317.434942] [<c06e619c>] (bus_probe_device) from [<c06e3d28>] (device_add+0x450/0x5f0)
[ 317.434964] [<c06e3d28>] (device_add) from [<c08b3cf0>] (of_device_add+0x44/0x4c)
[ 317.434980] [<c08b3cf0>] (of_device_add) from [<c08b4620>] (of_platform_device_create_pdata+0x94/0xc8)
[ 317.434995] [<c08b4620>] (of_platform_device_create_pdata) from [<c08b4758>] (of_platform_notify+0xe0/0x11c)
[ 317.435020] [<c08b4758>] (of_platform_notify) from [<c0065fcc>] (notifier_call_chain+0x54/0x94)
[ 317.435036] [<c0065fcc>] (notifier_call_chain) from [<c0066428>] (__blocking_notifier_call_chain+0x58/0x70)
[ 317.435050] [<c0066428>] (__blocking_notifier_call_chain) from [<c0066468>] (blocking_notifier_call_chain+0x28/0x30)
[ 317.435065] [<c0066468>] (blocking_notifier_call_chain) from [<c08b5a38>] (__of_changeset_entry_notify+0xb4/0x108)
[ 317.435081] [<c08b5a38>] (__of_changeset_entry_notify) from [<c08b63d4>] (__of_changeset_apply+0x98/0x170)
[ 317.435096] [<c08b63d4>] (__of_changeset_apply) from [<c08bbb94>] (__of_overlay_create+0x42c/0x618)
[ 317.435110] [<c08bbb94>] (__of_overlay_create) from [<c08bbda0>] (of_overlay_create+0x20/0x24)
[ 317.435123] [<c08bbda0>] (of_overlay_create) from [<c070fa48>] (capemgr_load_slot+0x3f4/0x5ec)
[ 317.435138] [<c070fa48>] (capemgr_load_slot) from [<c07118bc>] (slots_store+0x14c/0x328)
[ 317.435154] [<c07118bc>] (slots_store) from [<c06e17b0>] (dev_attr_store+0x28/0x34)
[ 317.435171] [<c06e17b0>] (dev_attr_store) from [<c023f10c>] (sysfs_kf_write+0x54/0x58)
[ 317.435186] [<c023f10c>] (sysfs_kf_write) from [<c023e89c>] (kernfs_fop_write+0xc8/0x1cc)
[ 317.435211] [<c023e89c>] (kernfs_fop_write) from [<c01c3098>] (__vfs_write+0x28/0x48)
[ 317.435226] [<c01c3098>] (__vfs_write) from [<c01c396c>] (vfs_write+0xa0/0x1a8)
[ 317.435238] [<c01c396c>] (vfs_write) from [<c01c4374>] (SyS_write+0x64/0xcc)
[ 317.435257] [<c01c4374>] (SyS_write) from [<c0010e60>] (ret_fast_syscall+0x0/0x44)
[ 317.435268] ---[ end trace 31ee799287d80d6c ]---
[ 317.435314] bone-pinmux-helper: probe of ocp:P9_16_pinmux failed with error -22
[ 317.503302] gpio-of-helper ocp:cape-universal: Allocated GPIO id=0
[ 317.503516] gpio-of-helper ocp:cape-universal: Allocated GPIO id=1
[ 317.503678] gpio-of-helper ocp:cape-universal: Allocated GPIO id=2
[ 317.503834] gpio-of-helper ocp:cape-universal: Allocated GPIO id=3
[ 317.503999] gpio-of-helper ocp:cape-universal: Allocated GPIO id=4
[ 317.504163] gpio-of-helper ocp:cape-universal: Allocated GPIO id=5
[ 317.504344] gpio-of-helper ocp:cape-universal: Allocated GPIO id=6
[ 317.504500] gpio-of-helper ocp:cape-universal: Allocated GPIO id=7
[ 317.504660] gpio-of-helper ocp:cape-universal: Allocated GPIO id=8
[ 317.504830] gpio-of-helper ocp:cape-universal: Allocated GPIO id=9
[ 317.504985] gpio-of-helper ocp:cape-universal: Allocated GPIO id=10
[ 317.505141] gpio-of-helper ocp:cape-universal: Allocated GPIO id=11
[ 317.505306] gpio-of-helper ocp:cape-universal: Allocated GPIO id=12
[ 317.505467] gpio-of-helper ocp:cape-universal: Allocated GPIO id=13
[ 317.505628] gpio-of-helper ocp:cape-universal: Allocated GPIO id=14
[ 317.505794] gpio-of-helper ocp:cape-universal: Allocated GPIO id=15
[ 317.505952] gpio-of-helper ocp:cape-universal: Allocated GPIO id=16
[ 317.519395] gpio-of-helper ocp:cape-universal: Allocated GPIO id=17
[ 317.519726] gpio-of-helper ocp:cape-universal: Allocated GPIO id=18
[ 317.519899] gpio-of-helper ocp:cape-universal: Allocated GPIO id=19
[ 317.520085] gpio-of-helper ocp:cape-universal: Allocated GPIO id=20
[ 317.520252] gpio-of-helper ocp:cape-universal: Allocated GPIO id=21
[ 317.520421] gpio-of-helper ocp:cape-universal: Allocated GPIO id=22
[ 317.520580] gpio-of-helper ocp:cape-universal: Allocated GPIO id=23
[ 317.520748] gpio-of-helper ocp:cape-universal: Allocated GPIO id=24
[ 317.520913] gpio-of-helper ocp:cape-universal: Allocated GPIO id=25
[ 317.521080] gpio-of-helper ocp:cape-universal: Allocated GPIO id=26
[ 317.521240] gpio-of-helper ocp:cape-universal: Allocated GPIO id=27
[ 317.521410] gpio-of-helper ocp:cape-universal: Allocated GPIO id=28
[ 317.521577] gpio-of-helper ocp:cape-universal: Allocated GPIO id=29
[ 317.521732] gpio-of-helper ocp:cape-universal: Allocated GPIO id=30
[ 317.521879] gpio-of-helper ocp:cape-universal: Allocated GPIO id=31
[ 317.522033] gpio-of-helper ocp:cape-universal: Allocated GPIO id=32
[ 317.531116] gpio-of-helper ocp:cape-universal: Allocated GPIO id=33
[ 317.531339] gpio-of-helper ocp:cape-universal: Allocated GPIO id=34
[ 317.531496] gpio-of-helper ocp:cape-universal: Allocated GPIO id=35
[ 317.531667] gpio-of-helper ocp:cape-universal: Allocated GPIO id=36
[ 317.531819] gpio-of-helper ocp:cape-universal: Allocated GPIO id=37
[ 317.531977] gpio-of-helper ocp:cape-universal: Allocated GPIO id=38
[ 317.532132] gpio-of-helper ocp:cape-universal: Allocated GPIO id=39
[ 317.532289] gpio-of-helper ocp:cape-universal: Allocated GPIO id=40
[ 317.532465] gpio-of-helper ocp:cape-universal: Allocated GPIO id=41
[ 317.532619] gpio-of-helper ocp:cape-universal: Allocated GPIO id=42
[ 317.532771] gpio-of-helper ocp:cape-universal: Allocated GPIO id=43
[ 317.532783] gpio-of-helper ocp:cape-universal: ready
[ 317.546549] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 194, base_baud = 3000000) is a 8250
[ 317.553019] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 195, base_baud = 3000000) is a 8250
[ 317.560700] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 196, base_baud = 3000000) is a 8250
[ 317.568455] 481aa000.serial: ttyS5 at MMIO 0x481aa000 (irq = 197, base_baud = 3000000) is a 8250
[ 317.597896] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[ 317.609505] bone_capemgr bone_capemgr: slot #5: dtbo 'univ-bbgw-00A0.dtbo' loaded; overlay id #1
[ 319.016781] CAN device driver interface
[ 319.109382] c_can_platform 481cc000.can: c_can_platform device registered (regs=fa1cc000, irq=203)
[ 319.141387] c_can_platform 481d0000.can: c_can_platform device registered (regs=fa1d0000, irq=204)
[ 365.398709] overlay_is_topmost: #0 clashes #1 @/ocp/epwmss@48302000
[ 365.405192] overlay_removal_is_ok: overlay #0 is not topmost
[ 365.411096] of_overlay_destroy: removal check failed for overlay #0
[ 365.427182] bone_capemgr bone_capemgr: Removed slot #4
[ 380.483327] Unable to handle kernel NULL pointer dereference at virtual address 0000000d
[ 380.491655] pgd = db5d4000
[ 380.494384] [0000000d] *pgd=9b533831, *pte=00000000, *ppte=00000000
[ 380.500908] Internal error: Oops: 17 [#1] SMP ARM
[ 380.505641] Modules linked in: spidev c_can_platform c_can can_dev spi_omap2_mcspi pwm_tiecap pwm_tiehrpwm ipt_REJECT nf_reject_ipv4 xt_TCPMSS xt_REDIRECT nf_nat_redirect xt_tcpudp xt_mark iptable_mangle bnep hci_uart btbcm btqca bluetooth ccm iptable_filter xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables arc4 wl18xx wlcore mac80211 cfg80211 rfkill omap_aes_driver omap_sham omap_rng rng_core wlcore_sdio evdev uio_pdrv_genirq uio usb_f_mass_storage usb_f_acm u_serial usb_f_ecm usb_f_rndis u_ether libcomposite pru_rproc pruss_intc pruss
[ 380.562387] CPU: 0 PID: 2891 Comm: bash Tainted: G W 4.4.55-ti-r94 #1
[ 380.569992] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 380.576118] task: db596180 ti: db5c6000 task.ti: db5c6000
[ 380.581571] PC is at omap_device_enable+0x20/0xa0
[ 380.586303] LR is at _od_runtime_resume+0x20/0x34
[ 380.591032] pc : [<c00301d0>] lr : [<c0030270>] psr: a0000013
sp : db5c7b60 ip : db5c7b80 fp : db5c7b7c
[ 380.602566] r10: db798210 r9 : 00000000 r8 : c008b2cc
[ 380.607816] r7 : 00000004 r6 : 00000000 r5 : db798210 r4 : db798210
[ 380.614375] r3 : c0030250 r2 : 0000000e r1 : db798210 r0 : db798200
[ 380.620937] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 380.628108] Control: 10c5387d Table: 9b5d4019 DAC: 00000051
[ 380.633883] Process bash (pid: 2891, stack limit = 0xdb5c6218)
[ 380.639744] Stack: (0xdb5c7b60 to 0xdb5c8000)
[ 380.644134] 7b60: c0030250 db798210 db798210 c0f97140 db5c7b94 db5c7b80 c0030270 c00301bc
[ 380.652358] 7b80: c0030250 db798210 db5c7bac db5c7b98 c06f17e0 c003025c 00400100 db798210
[ 380.660584] 7ba0: db5c7bc4 db5c7bb0 c06f188c c06f17a4 dc1f0c10 c0030250 db5c7c1c db5c7bc8
[ 380.668809] 7bc0: c06f2b34 c06f1838 dc1f0c10 c0f97a88 db798298 db5c6008 c023da9c c024080c
[ 380.677035] 7be0: db5c7c04 db5c7bf0 c05d8fb8 dc8ba637 dc01fa5d db798210 00000004 db798274
[ 380.685259] 7c00: 60000013 db798218 dc1f0c10 db37bd00 db5c7c3c db5c7c20 c06f2ed4 c06f2740
[ 380.693483] 7c20: db798210 bf46a2e8 c102a9f8 c11406a4 db5c7c54 db5c7c40 c06e7504 c06f2e70
[ 380.701708] 7c40: db798244 db798210 db5c7c6c db5c7c58 c06e7600 c06e74d0 dc01fa30 db798210
[ 380.709932] 7c60: db5c7c8c db5c7c70 c06e62a0 c06e75e0 00000000 db798200 db798210 c0f97a88
[ 380.718156] 7c80: db5c7ccc db5c7c90 c06e2778 c06e61b0 db5ca140 c0a54340 db5c7cc4 db5c7ca8
[ 380.726380] 7ca0: c0a54350 dc8ba637 db798200 db798200 db798200 ffffffff 00000000 c103a0f0
[ 380.734605] 7cc0: db5c7cec db5c7cd0 c06e93a0 c06e2658 c102a9f8 db798200 db798200 00000005
[ 380.742829] 7ce0: db5c7d04 db5c7cf0 c06e9428 c06e9388 c102a9f8 db798210 db5c7d1c db5c7d08
[ 380.751055] 7d00: c08b4264 c06e9418 dc8ba637 c0f97a88 db5c7d44 db5c7d20 c08b4704 c08b41d4
[ 380.759280] 7d20: c0827ca8 dc8ba637 ffffffff db5c7db0 00000005 ffffffff db5c7d6c db5c7d48
[ 380.767504] 7d40: c0065fcc c08b4684 ffffffff c104b328 db5c7db0 00000005 c1077bd8 daacfc20
[ 380.775729] 7d60: db5c7d94 db5c7d70 c0066428 c0065f84 00000000 da9d9f30 c0f97a88 df946c18
[ 380.783953] 7d80: 00000000 c0f97a88 db5c7dac db5c7d98 c0066468 c00663dc 00000000 c05bd684
[ 380.792178] 7da0: db5c7dd4 db5c7db0 c08b596c c006644c df946a3c df946c18 db5e7640 dc8ba637
[ 380.800401] 7dc0: c0f97a88 db5c7de4 db5c7e14 db5c7dd8 c08b59f0 c08b58f4 daacfc20 db37bd00
[ 380.808626] 7de0: db5c7e14 db5e7800 db5e7600 00000005 df946a3c df946c18 db5e7640 dc8ba637
[ 380.816851] 7e00: db5e7700 db251598 db5c7e5c db5c7e18 c08b6594 c08b5990 c024080c db5da1c0
[ 380.825074] 7e20: db251598 00000002 da9d9f00 00000000 00000000 dc8ba637 db5c7e5c db251580
[ 380.833299] 7e40: 00000001 db2515a0 db251598 dc218e10 db5c7e7c db5c7e60 c08bc0e4 c08b64fc
[ 380.841524] 7e60: db0be410 dc218e10 00000004 db5ed8c0 db5c7e94 db5c7e80 c071118c c08bc058
[ 380.849748] 7e80: db0be410 c0f97a88 db5c7ecc db5c7e98 c0711a20 c0711118 00000004 024000c0
[ 380.857973] 7ea0: 00000005 dc8ba637 db5ed8c0 db37bd0c 00000003 db5c7f70 00000000 00000000
[ 380.866198] 7ec0: db5c7edc db5c7ed0 c06e17b0 c071177c db5c7ef4 db5c7ee0 c023f10c c06e1794
[ 380.874422] 7ee0: c023f0b8 db5ed8c0 db5c7f2c db5c7ef8 c023e89c c023f0c4 00000000 00000000
[ 380.882646] 7f00: c01c36a4 db7df0c0 00000003 0198cc08 db5c7f70 0198cc08 db5c6000 00000000
[ 380.890871] 7f20: db5c7f3c db5c7f30 c01c3098 c023e7e0 db5c7f6c db5c7f40 c01c396c c01c307c
[ 380.899095] 7f40: 00000000 c01e3068 db7df0c0 c0f97a88 db7df0c0 00000003 0198cc08 db5c6000
[ 380.907319] 7f60: db5c7fa4 db5c7f70 c01c4374 c01c38d8 00000000 00000000 db596180 dc8ba637
[ 380.915543] 7f80: 00000000 00000003 0198cc08 b6f30b50 00000004 c0011024 00000000 db5c7fa8
[ 380.923768] 7fa0: c0010e60 c01c431c 00000003 0198cc08 00000001 0198cc08 00000003 00000000
[ 380.931991] 7fc0: 00000003 0198cc08 b6f30b50 00000004 00000003 00000000 000c5758 00000000
[ 380.940216] 7fe0: 00000000 befdb914 b6e93c85 b6ecef26 40000030 00000001 9fde6861 9fde6c61
[ 380.948461] [<c00301d0>] (omap_device_enable) from [<c0030270>] (_od_runtime_resume+0x20/0x34)
[ 380.957136] [<c0030270>] (_od_runtime_resume) from [<c06f17e0>] (__rpm_callback+0x48/0x94)
[ 380.965451] [<c06f17e0>] (__rpm_callback) from [<c06f188c>] (rpm_callback+0x60/0x90)
[ 380.973242] [<c06f188c>] (rpm_callback) from [<c06f2b34>] (rpm_resume+0x400/0x730)
[ 380.980858] [<c06f2b34>] (rpm_resume) from [<c06f2ed4>] (__pm_runtime_resume+0x70/0x90)
[ 380.988911] [<c06f2ed4>] (__pm_runtime_resume) from [<c06e7504>] (__device_release_driver+0x40/0x110)
[ 380.998183] [<c06e7504>] (__device_release_driver) from [<c06e7600>] (device_release_driver+0x2c/0x38)
[ 381.007542] [<c06e7600>] (device_release_driver) from [<c06e62a0>] (bus_remove_device+0xfc/0x154)
[ 381.016473] [<c06e62a0>] (bus_remove_device) from [<c06e2778>] (device_del+0x12c/0x248)
[ 381.024529] [<c06e2778>] (device_del) from [<c06e93a0>] (platform_device_del+0x24/0x90)
[ 381.032582] [<c06e93a0>] (platform_device_del) from [<c06e9428>] (platform_device_unregister+0x1c/0x30)
[ 381.042038] [<c06e9428>] (platform_device_unregister) from [<c08b4264>] (of_platform_device_destroy+0x9c/0xa0)
[ 381.052099] [<c08b4264>] (of_platform_device_destroy) from [<c08b4704>] (of_platform_notify+0x8c/0x11c)
[ 381.061560] [<c08b4704>] (of_platform_notify) from [<c0065fcc>] (notifier_call_chain+0x54/0x94)
[ 381.070312] [<c0065fcc>] (notifier_call_chain) from [<c0066428>] (__blocking_notifier_call_chain+0x58/0x70)
[ 381.080108] [<c0066428>] (__blocking_notifier_call_chain) from [<c0066468>] (blocking_notifier_call_chain+0x28/0x30)
[ 381.090691] [<c0066468>] (blocking_notifier_call_chain) from [<c08b596c>] (of_property_notify+0x84/0x9c)
[ 381.100226] [<c08b596c>] (of_property_notify) from [<c08b59f0>] (__of_changeset_entry_notify+0x6c/0x108)
[ 381.109761] [<c08b59f0>] (__of_changeset_entry_notify) from [<c08b6594>] (__of_changeset_revert+0xa4/0x170)
[ 381.119559] [<c08b6594>] (__of_changeset_revert) from [<c08bc0e4>] (of_overlay_destroy+0x98/0x124)
[ 381.128576] [<c08bc0e4>] (of_overlay_destroy) from [<c071118c>] (capemgr_remove_slot_no_lock+0x80/0xd4)
[ 381.138026] [<c071118c>] (capemgr_remove_slot_no_lock) from [<c0711a20>] (slots_store+0x2b0/0x328)
[ 381.147038] [<c0711a20>] (slots_store) from [<c06e17b0>] (dev_attr_store+0x28/0x34)
[ 381.154743] [<c06e17b0>] (dev_attr_store) from [<c023f10c>] (sysfs_kf_write+0x54/0x58)
[ 381.162708] [<c023f10c>] (sysfs_kf_write) from [<c023e89c>] (kernfs_fop_write+0xc8/0x1cc)
[ 381.170945] [<c023e89c>] (kernfs_fop_write) from [<c01c3098>] (__vfs_write+0x28/0x48)
[ 381.178825] [<c01c3098>] (__vfs_write) from [<c01c396c>] (vfs_write+0xa0/0x1a8)
[ 381.186177] [<c01c396c>] (vfs_write) from [<c01c4374>] (SyS_write+0x64/0xcc)
[ 381.193276] [<c01c4374>] (SyS_write) from [<c0010e60>] (ret_fast_syscall+0x0/0x44)
[ 381.200893] Code: e8bd4000 e3500000 159061bc 01a06000 (e5d6300d)
[ 381.207554] ---[ end trace 31ee799287d80d6d ]---
debian@beaglebone:~$
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