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* Kernel NFS boot failure
@ 2016-08-03 11:41 Grygorii Strashko
  2016-08-03 12:06 ` Vladimir Murzin
  0 siblings, 1 reply; 5+ messages in thread
From: Grygorii Strashko @ 2016-08-03 11:41 UTC (permalink / raw)
  To: netdev; +Cc: linux-omap@vger.kernel.org, Sekhar Nori, linux-arm

Hi All,

We observe Kernel boot failure while running NFS boot stress test (1000 iterations):
- Linux version 4.7.0 
- am335x-evm (TI AM335x EVM)
- failure rate 10-20 times per test.
Originally this issue was reproduced using TI Kernel 4.4
( git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git, branch: ti-linux-4.4.y)
on both am335x-evm and am57xx-beagle-x15(am57xx-evm) platforms.
This issues has not been reproduced with TI Kernel 4.1 before.

The SysRq shows that system stuck in nfs_fs_mount()

[  207.904632] [<c07ab34c>] (schedule) from [<c0783554>] (rpc_wait_bit_killable+0x2c/0xd8)
[  207.912996] [<c0783554>] (rpc_wait_bit_killable) from [<c07ab7f0>] (__wait_on_bit+0x84/0xc0)
[  207.921812] [<c07ab7f0>] (__wait_on_bit) from [<c07ab890>] (out_of_line_wait_on_bit+0x64/0x70)
[  207.930810] [<c07ab890>] (out_of_line_wait_on_bit) from [<c07843f4>] (__rpc_execute+0x18c/0x544)
[  207.939988] [<c07843f4>] (__rpc_execute) from [<c0779f24>] (rpc_run_task+0x13c/0x158)
[  207.948166] [<c0779f24>] (rpc_run_task) from [<c0779f84>] (rpc_call_sync+0x44/0xc4)
[  207.956163] [<c0779f84>] (rpc_call_sync) from [<c077a04c>] (rpc_ping+0x48/0x68)
[  207.963796] [<c077a04c>] (rpc_ping) from [<c077a158>] (rpc_create_xprt+0xec/0x164)
[  207.971702] [<c077a158>] (rpc_create_xprt) from [<c077a2c0>] (rpc_create+0xf0/0x1a0)
[  207.979794] [<c077a2c0>] (rpc_create) from [<c0393088>] (nfs_create_rpc_client+0xd4/0xec)
[  207.988338] [<c0393088>] (nfs_create_rpc_client) from [<c0394d10>] (nfs_init_client+0x20/0x78)
[  207.997332] [<c0394d10>] (nfs_init_client) from [<c03949d4>] (nfs_create_server+0xa0/0x3bc)
[  208.006057] [<c03949d4>] (nfs_create_server) from [<c03b197c>] (nfs3_create_server+0x8/0x20)
[  208.014879] [<c03b197c>] (nfs3_create_server) from [<c03a34c4>] (nfs_try_mount+0xc4/0x1f0)
[  208.023513] [<c03a34c4>] (nfs_try_mount) from [<c03a2c48>] (nfs_fs_mount+0x290/0x910)
[  208.031702] [<c03a2c48>] (nfs_fs_mount) from [<c0294d24>] (mount_fs+0x44/0x168)

Has anyone else seen this issue?

I'd be appreciated for any help or advice related to this issue?

Thanks in advance.

regards,
-grygorii

=================== kernel log =======================

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.7.0 (lcpdbld@dflsdit-build06.dal.design.ti.com) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #1 SMP Fri Jul 29 17:41:27 CDT 2016
[    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 EVM
[    0.000000] cma: Reserved 16 MiB at 0xbe800000
[    0.000000] Memory policy: Data cache writeback
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.1 (sgx neon )
[    0.000000] percpu: Embedded 15 pages/cpu @ef6b9000 s29440 r8192 d23808 u61440
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 259904
[    0.000000] Kernel command line: console=ttyO0,115200n8 earlyprintk=serial,ttyO0,115200n8 rootwait   ip=:::::eth0:dhcp  root=/dev/nfs rw nfsroot=192.168.0.1:/home/tigtfarm04/NFS_exports/linux/am335x-evm/autofs/bdb57ec4c06590e6172879867ab30d1e,nolock,v3,tcp,rsize=4096,wsize=4096 
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 999648K/1046528K available (7354K kernel code, 768K rwdata, 2360K rodata, 1024K init, 8122K bss, 30496K reserved, 16384K cma-reserved, 243712K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc0a7c8e8   (10707 kB)
[    0.000000]       .init : 0xc0b00000 - 0xc0c00000   (1024 kB)
[    0.000000]       .data : 0xc0c00000 - 0xc0cc0304   ( 769 kB)
[    0.000000]        .bss : 0xc0cc2000 - 0xc14b0a40   (8123 kB)
[    0.000000] Running RCU self tests
[    0.000000] Hierarchical RCU implementation.
[    0.000000] 	RCU lockdep checking is enabled.
[    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
[    0.000017] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000039] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000090] OMAP clocksource: timer1 at 24000000 Hz
[    0.000600] clocksource_probe: no matching clocksources found
[    0.001543] Console: colour dummy device 80x30
[    0.001605] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.001615] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.001622] ... MAX_LOCK_DEPTH:          48
[    0.001630] ... MAX_LOCKDEP_KEYS:        8191
[    0.001637] ... CLASSHASH_SIZE:          4096
[    0.001645] ... MAX_LOCKDEP_ENTRIES:     32768
[    0.001652] ... MAX_LOCKDEP_CHAINS:      65536
[    0.001659] ... CHAINHASH_SIZE:          32768
[    0.001667]  memory used by lock dependency info: 5167 kB
[    0.001675]  per task-struct memory footprint: 1536 bytes
[    0.001709] Calibrating delay loop... 996.14 BogoMIPS (lpj=4980736)
[    0.078684] pid_max: default: 32768 minimum: 301
[    0.079156] Security Framework initialized
[    0.079302] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.079317] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.082842] CPU: Testing write buffer coherency: ok
[    0.084628] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[    0.084709] Setting up static identity map for 0x80100000 - 0x80100070
[    0.089402] Brought up 1 CPUs
[    0.089425] SMP: Total of 1 processors activated (996.14 BogoMIPS).
[    0.089436] CPU: All CPU(s) started in SVC mode.
[    0.093423] devtmpfs: initialized
[    0.133262] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    0.134204] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.135944] pinctrl core: initialized pinctrl subsystem
[    0.141766] NET: Registered protocol family 16
[    0.147074] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.203979] omap_hwmod: debugss: _wait_target_disable failed
[    0.261060] cpuidle: using governor menu
[    0.274990] OMAP GPIO hardware version 0.1
[    0.301030] omap-gpmc 50000000.gpmc: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/nandflash_pins_s0, deferring probe
[    0.307161] No ATAGs?
[    0.307186] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.307435] omap4_sram_init:Unable to allocate sram needed to handle errata I688
[    0.307451] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[    0.354305] edma 49000000.edma: TI EDMA DMA engine driver
[    0.361450] SCSI subsystem initialized
[    0.363558] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
[    0.363669] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c1_pins, deferring probe
[    0.363964] pps_core: LinuxPPS API ver. 1 registered
[    0.363975] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.364026] PTP clock support registered
[    0.368809] clocksource: Switched to clocksource timer1
[    0.471686] VFS: Disk quotas dquot_6.6.0
[    0.471879] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.504828] NET: Registered protocol family 2
[    0.507032] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.507202] TCP bind hash table entries: 8192 (order: 6, 294912 bytes)
[    0.509721] TCP: Hash tables configured (established 8192 bind 8192)
[    0.510050] UDP hash table entries: 512 (order: 3, 40960 bytes)
[    0.510377] UDP-Lite hash table entries: 512 (order: 3, 40960 bytes)
[    0.511368] NET: Registered protocol family 1
[    0.513282] RPC: Registered named UNIX socket transport module.
[    0.513309] RPC: Registered udp transport module.
[    0.513320] RPC: Registered tcp transport module.
[    0.513330] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.516207] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[    0.521290] futex hash table entries: 256 (order: 2, 16384 bytes)
[    0.521519] audit: initializing netlink subsys (disabled)
[    0.521801] audit: type=2000 audit(0.510:1): initialized
[    0.525994] workingset: timestamp_bits=12 max_order=18 bucket_order=6
[    0.528964] NFS: Registering the id_resolver key type
[    0.529371] Key type id_resolver registered
[    0.529388] Key type id_legacy registered
[    0.529583] jffs2: version 2.2. (NAND) (SUMMARY)   2001-2006 Red Hat, Inc.
[    0.535376] bounce: pool size: 64 pages
[    0.535560] io scheduler noop registered
[    0.535575] io scheduler deadline registered
[    0.535632] io scheduler cfq registered (default)
[    0.538164] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[    0.543123] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.549627] omap_uart 44e09000.serial: no wakeirq for uart0
[    0.550363] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 158, base_baud = 3000000) is a OMAP UART0
[    1.280532] console [ttyO0] enabled
[    1.286200] omap_uart 48022000.serial: no wakeirq for uart1
[    1.292563] 48022000.serial: ttyO1 at MMIO 0x48022000 (irq = 159, base_baud = 3000000) is a OMAP UART1
[    1.343677] brd: module loaded
[    1.372084] loop: module loaded
[    1.378098] mtdoops: mtd device (mtddev=name/number) must be supplied
[    1.448758] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[    1.455149] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
[    1.466091] libphy: 4a101000.mdio: probed
[    1.470478] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver Atheros 8031 ethernet
[    1.481604] cpsw 4a100000.ethernet: Detected MACID = d0:ff:50:57:02:d9
[    1.494503] mousedev: PS/2 mouse device common for all mice
[    1.500507] i2c /dev entries driver
[    1.506791] omap_hsmmc 48060000.mmc: Got CD GPIO
[    1.629181] ledtrig-cpu: registered to indicate activity on CPUs
[    1.637125] oprofile: using arm/armv7
[    1.641883] Initializing XFRM netlink socket
[    1.646812] NET: Registered protocol family 10
[    1.657446] sit: IPv6 over IPv4 tunneling driver
[    1.664949] NET: Registered protocol family 17
[    1.669812] NET: Registered protocol family 15
[    1.674901] Key type dns_resolver registered
[    1.679650] omap_voltage_late_init: Voltage driver support not added
[    1.686325] sr_dev_init: No voltage domain specified for smartreflex0. Cannot initialize
[    1.694833] sr_dev_init: No voltage domain specified for smartreflex1. Cannot initialize
[    1.704103] ThumbEE CPU extension supported.
[    1.708687] Registering SWP/SWPB emulation handler
[    1.713694] SmartReflex Class3 initialized
[    1.727416] omap-gpmc 50000000.gpmc: omap_device: omap_device_enable() called from invalid state 1
[    1.736984] omap-gpmc 50000000.gpmc: use pm_runtime_put_sync_suspend() in driver?
[    1.744891] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[    1.750534] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[    1.763255] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
[    1.770059] nand: Micron MT29F2G08ABAEAWP
[    1.774253] nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
[    1.782278] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme
[    1.788157] 10 ofpart partitions found on MTD device 8000000.nand
[    1.794573] Creating 10 MTD partitions on "8000000.nand":
[    1.800255] 0x000000000000-0x000000020000 : "NAND.SPL"
[    1.813707] 0x000000020000-0x000000040000 : "NAND.SPL.backup1"
[    1.824552] 0x000000040000-0x000000060000 : "NAND.SPL.backup2"
[    1.835304] 0x000000060000-0x000000080000 : "NAND.SPL.backup3"
[    1.845935] 0x000000080000-0x0000000c0000 : "NAND.u-boot-spl-os"
[    1.856686] 0x0000000c0000-0x0000001c0000 : "NAND.u-boot"
[    1.867218] 0x0000001c0000-0x0000001e0000 : "NAND.u-boot-env"
[    1.877621] 0x0000001e0000-0x000000200000 : "NAND.u-boot-env.backup1"
[    1.888812] 0x000000200000-0x000000a00000 : "NAND.kernel"
[    1.901811] 0x000000a00000-0x000010000000 : "NAND.file-system"
[    2.029897] tps65910 0-002d: No interrupt support, no core IRQ
[    2.040322] vrtc: supplied by vbat
[    2.051821] vio: supplied by vbat
[    2.058770] vdd1: supplied by vbat
[    2.063500] vdd_mpu: Bringing 1325000uV into 1312500-1312500uV
[    2.072533] vdd2: supplied by vbat
[    2.082954] vdig1: supplied by vbat
[    2.089848] vdig2: supplied by vbat
[    2.096603] vpll: supplied by vbat
[    2.103298] vdac: supplied by vbat
[    2.110075] vaux1: supplied by vbat
[    2.116777] vaux2: supplied by vbat
[    2.123576] vaux33: supplied by vbat
[    2.130510] vmmc: supplied by vbat
[    2.137134] vbb: supplied by vbat
[    2.143675] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    2.154258] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 100 kHz
[    2.161584] omap_hsmmc 48060000.mmc: Got CD GPIO
[    2.211668] hctosys: unable to open rtc device (rtc0)
[    2.216968] sr_init: No PMIC hook to init smartreflex
[    2.222637] sr_init: platform driver register failed for SR
[    2.247587] net eth0: initializing cpsw version 1.12 (0)
[    2.286454] mmc1: host does not support reading read-only switch, assuming write-enable
[    2.296952] mmc1: new high speed SDHC card at address 59b4
[    2.306618] mmcblk1: mmc1:59b4 NCard 7.51 GiB 
[    2.315976]  mmcblk1: p1 p2 p3
[    2.329789] Atheros 8031 ethernet 4a101000.mdio:00: attached PHY driver [Atheros 8031 ethernet] (mii_bus:phy_addr=4a101000.mdio:00, irq=-1)
[    2.343148] libphy: PHY 4a101000.mdio:01 not found
[    2.348160] net eth0: phy "4a101000.mdio:01" not found on slave 1, err -19
[    2.363596] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    6.329622] cpsw 4a100000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[    6.338420] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    6.349476] Sending DHCP requests ., OK
[    6.409166] IP-Config: Got DHCP answer from 192.168.0.1, my address is 192.168.0.175
[    6.417934] IP-Config: Complete:
[    6.421439]      device=eth0, hwaddr=d0:ff:50:57:02:d9, ipaddr=192.168.0.175, mask=255.255.255.0, gw=192.168.0.1
[    6.432099]      host=192.168.0.175, domain=ti.com, nis-domain=(none)
[    6.438849]      bootserver=192.168.0.1, rootserver=192.168.0.1, rootpath=     nameserver0=192.0.2.2, nameserver1=192.0.2.3
[    6.450704] lis3_reg: disabling
[    6.453996] wlan-en-regulator: disabling
[  194.829109] random: nonblocking pool is initialized

- 20:53:45 [INFO] Boot attempt 1/1 failed
- 20:53:45 [INFO] Collecting kernel traces via sysrq...
- 20:53:55 [INFO] [  207.881249] sysrq: SysRq : Show State
[  207.885105]   task                PC stack   pid father
[  207.890567] swapper/0       D c07aaa40     0     1      0 0x00000000
[  207.897255] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  207.904632] [<c07ab34c>] (schedule) from [<c0783554>] (rpc_wait_bit_killable+0x2c/0xd8)
[  207.912996] [<c0783554>] (rpc_wait_bit_killable) from [<c07ab7f0>] (__wait_on_bit+0x84/0xc0)
[  207.921812] [<c07ab7f0>] (__wait_on_bit) from [<c07ab890>] (out_of_line_wait_on_bit+0x64/0x70)
[  207.930810] [<c07ab890>] (out_of_line_wait_on_bit) from [<c07843f4>] (__rpc_execute+0x18c/0x544)
[  207.939988] [<c07843f4>] (__rpc_execute) from [<c0779f24>] (rpc_run_task+0x13c/0x158)
[  207.948166] [<c0779f24>] (rpc_run_task) from [<c0779f84>] (rpc_call_sync+0x44/0xc4)
[  207.956163] [<c0779f84>] (rpc_call_sync) from [<c077a04c>] (rpc_ping+0x48/0x68)
[  207.963796] [<c077a04c>] (rpc_ping) from [<c077a158>] (rpc_create_xprt+0xec/0x164)
[  207.971702] [<c077a158>] (rpc_create_xprt) from [<c077a2c0>] (rpc_create+0xf0/0x1a0)
[  207.979794] [<c077a2c0>] (rpc_create) from [<c0393088>] (nfs_create_rpc_client+0xd4/0xec)
[  207.988338] [<c0393088>] (nfs_create_rpc_client) from [<c0394d10>] (nfs_init_client+0x20/0x78)
[  207.997332] [<c0394d10>] (nfs_init_client) from [<c03949d4>] (nfs_create_server+0xa0/0x3bc)
[  208.006057] [<c03949d4>] (nfs_create_server) from [<c03b197c>] (nfs3_create_server+0x8/0x20)
[  208.014879] [<c03b197c>] (nfs3_create_server) from [<c03a34c4>] (nfs_try_mount+0xc4/0x1f0)
[  208.023513] [<c03a34c4>] (nfs_try_mount) from [<c03a2c48>] (nfs_fs_mount+0x290/0x910)
[  208.031702] [<c03a2c48>] (nfs_fs_mount) from [<c0294d24>] (mount_fs+0x44/0x168)
[  208.039350] [<c0294d24>] (mount_fs) from [<c02b3420>] (vfs_kern_mount+0x54/0x134)
[  208.047171] [<c02b3420>] (vfs_kern_mount) from [<c02b6c40>] (do_mount+0x1d4/0xd30)
[  208.055078] [<c02b6c40>] (do_mount) from [<c02b7b08>] (SyS_mount+0x74/0x9c)
[  208.062363] [<c02b7b08>] (SyS_mount) from [<c0b014b4>] (mount_root+0x5c/0x124)
[  208.069910] [<c0b014b4>] (mount_root) from [<c0b016e0>] (prepare_namespace+0x164/0x1c8)
[  208.078272] [<c0b016e0>] (prepare_namespace) from [<c0b00f08>] (kernel_init_freeable+0x28c/0x2e0)
[  208.087541] [<c0b00f08>] (kernel_init_freeable) from [<c07a9418>] (kernel_init+0x8/0x118)
[  208.096092] [<c07a9418>] (kernel_init) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.103996] kthreadd        S c07aaa40     0     2      0 0x00000000
[  208.110653] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.118022] [<c07ab34c>] (schedule) from [<c015b258>] (kthreadd+0x220/0x248)
[  208.125386] [<c015b258>] (kthreadd) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.133017] ksoftirqd/0     S c07aaa40     0     3      2 0x00000000
[  208.139672] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.147037] [<c07ab34c>] (schedule) from [<c015e158>] (smpboot_thread_fn+0xd0/0x194)
[  208.155126] [<c015e158>] (smpboot_thread_fn) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.163034] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.170573] kworker/0:0     S c07aaa40     0     4      2 0x00000000
[  208.177243] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.184618] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  208.192344] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.199889] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.207428] kworker/0:0H    S c07aaa40     0     5      2 0x00000000
[  208.214088] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.221452] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  208.229177] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.236721] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.244260] kworker/u2:0    S c07aaa40     0     6      2 0x00000000
[  208.250918] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.258282] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  208.266007] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.273551] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.281090] rcu_sched       S c07aaa40     0     7      2 0x00000000
[  208.287744] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.295120] [<c07ab34c>] (schedule) from [<c01ab8b8>] (rcu_gp_kthread+0x40/0x814)
[  208.302938] [<c01ab8b8>] (rcu_gp_kthread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.310573] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.318112] rcu_bh          S c07aaa40     0     8      2 0x00000000
[  208.324766] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.332130] [<c07ab34c>] (schedule) from [<c01ab8b8>] (rcu_gp_kthread+0x40/0x814)
[  208.339946] [<c01ab8b8>] (rcu_gp_kthread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.347581] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.355120] migration/0     S c07aaa40     0     9      2 0x00000000
[  208.361774] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.369137] [<c07ab34c>] (schedule) from [<c015e158>] (smpboot_thread_fn+0xd0/0x194)
[  208.377224] [<c015e158>] (smpboot_thread_fn) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.385131] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.392670] lru-add-drain   S c07aaa40     0    10      2 0x00000000
[  208.399328] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.406692] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.414600] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.422234] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.429774] cpuhp/0         S c07aaa40     0    11      2 0x00000000
[  208.436428] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.443791] [<c07ab34c>] (schedule) from [<c015e158>] (smpboot_thread_fn+0xd0/0x194)
[  208.451879] [<c015e158>] (smpboot_thread_fn) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.459785] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.467324] kdevtmpfs       S c07aaa40     0    12      2 0x00000000
[  208.473978] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.481353] [<c07ab34c>] (schedule) from [<c052a61c>] (devtmpfsd+0x2b8/0x2e4)
[  208.488809] [<c052a61c>] (devtmpfsd) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.495990] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.503529] netns           S c07aaa40     0    13      2 0x00000000
[  208.510188] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.517553] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.525460] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.533094] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.540633] kworker/0:1     S c07aaa40     0    14      2 0x00000000
[  208.547291] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.554655] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  208.562380] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.569924] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.577463] oom_reaper      S c07aaa40     0    15      2 0x00000000
[  208.584116] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.591480] [<c07ab34c>] (schedule) from [<c0233250>] (oom_reaper+0x134/0x194)
[  208.599025] [<c0233250>] (oom_reaper) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.606297] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.613836] writeback       S c07aaa40     0    16      2 0x00000000
[  208.620494] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.627858] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.635765] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.643399] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.650939] kcompactd0      S c07aaa40     0    17      2 0x00000000
[  208.657593] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.664962] [<c07ab34c>] (schedule) from [<c025e868>] (kcompactd+0x490/0x5b0)
[  208.672417] [<c025e868>] (kcompactd) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.679598] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.687137] crypto          S c07aaa40     0    18      2 0x00000000
[  208.693795] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.701160] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.709067] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.716701] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.724240] bioset          S c07aaa40     0    19      2 0x00000000
[  208.730900] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.738264] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.746171] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.753805] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.761344] kblockd         S c07aaa40     0    20      2 0x00000000
[  208.768003] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.775367] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.783274] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.790909] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.798448] ata_sff         S c07aaa40     0    21      2 0x00000000
[  208.805105] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.812470] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.820376] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.828011] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.835550] watchdogd       S c07aaa40     0    22      2 0x00000000
[  208.842208] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.849572] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.857478] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.865112] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.872652] rpciod          S c07aaa40     0    23      2 0x00000000
[  208.879311] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.886674] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.894581] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.902216] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.909755] kswapd0         S c07aaa40     0    24      2 0x00000000
[  208.916409] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.923774] [<c07ab34c>] (schedule) from [<c024aca4>] (kswapd+0x9e4/0xb44)
[  208.930955] [<c024aca4>] (kswapd) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.937864] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.945403] vmstat          S c07aaa40     0    25      2 0x00000000
[  208.952062] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.959426] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  208.967333] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  208.974967] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  208.982506] nfsiod          S c07aaa40     0    26      2 0x00000000
[  208.989164] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  208.996528] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.004435] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.012070] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.019609] bioset          S c07aaa40     0    37      2 0x00000000
[  209.026267] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.033631] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.041537] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.049172] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.056711] bioset          S c07aaa40     0    38      2 0x00000000
[  209.063369] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.070733] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.078640] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.086274] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.093813] bioset          S c07aaa40     0    39      2 0x00000000
[  209.100472] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.107836] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.115743] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.123377] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.130916] bioset          S c07aaa40     0    40      2 0x00000000
[  209.137575] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.144939] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.152846] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.160480] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.168019] bioset          S c07aaa40     0    41      2 0x00000000
[  209.174677] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.182041] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.189948] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.197582] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.205122] bioset          S c07aaa40     0    42      2 0x00000000
[  209.211779] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.219144] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.227051] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.234685] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.242224] bioset          S c07aaa40     0    43      2 0x00000000
[  209.248883] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.256246] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.264153] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.271788] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.279327] bioset          S c07aaa40     0    44      2 0x00000000
[  209.285984] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.293348] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.301255] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.308889] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.316429] bioset          S c07aaa40     0    45      2 0x00000000
[  209.323087] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.330451] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.338358] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.345993] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.353532] bioset          S c07aaa40     0    46      2 0x00000000
[  209.360191] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.367555] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.375461] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.383096] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.390635] bioset          S c07aaa40     0    47      2 0x00000000
[  209.397293] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.404657] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.412564] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.420199] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.427738] bioset          S c07aaa40     0    48      2 0x00000000
[  209.434396] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.441760] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.449667] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.457301] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.464840] bioset          S c07aaa40     0    49      2 0x00000000
[  209.471498] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.478862] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.486768] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.494403] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.501942] bioset          S c07aaa40     0    50      2 0x00000000
[  209.508600] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.515964] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.523871] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.531505] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.539044] bioset          S c07aaa40     0    51      2 0x00000000
[  209.545702] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.553066] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.560974] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.568608] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.576147] bioset          S c07aaa40     0    52      2 0x00000000
[  209.582805] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.590169] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.598076] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.605711] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.613250] bioset          S c07aaa40     0    53      2 0x00000000
[  209.619908] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.627272] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.635179] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.642814] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.650353] bioset          S c07aaa40     0    54      2 0x00000000
[  209.657012] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.664375] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.672282] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.679917] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.687456] bioset          S c07aaa40     0    55      2 0x00000000
[  209.694115] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.701479] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.709386] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.717020] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.724559] bioset          S c07aaa40     0    56      2 0x00000000
[  209.731217] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.738581] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.746488] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.754122] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.761662] bioset          S c07aaa40     0    57      2 0x00000000
[  209.768320] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.775684] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.783590] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.791225] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.798764] bioset          S c07aaa40     0    58      2 0x00000000
[  209.805422] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.812786] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.820693] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.828327] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.835866] bioset          S c07aaa40     0    59      2 0x00000000
[  209.842524] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.849888] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.857795] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.865429] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.872969] bioset          S c07aaa40     0    60      2 0x00000000
[  209.879627] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.886991] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.894898] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.902532] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.910071] kworker/u2:1    S c07aaa40     0    61      2 0x00000000
[  209.916730] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.924094] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  209.931819] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.939363] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.946902] ipv6_addrconf   S c07aaa40     0    63      2 0x00000000
[  209.953560] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.960924] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  209.968831] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  209.976465] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  209.984005] kworker/0:2     S c07aaa40     0    64      2 0x00000000
[  209.990663] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  209.998027] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  210.005752] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.013296] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.020835] deferwq         S c07aaa40     0    65      2 0x00000000
[  210.027493] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.034857] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.042764] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.050398] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.057937] bioset          S c07aaa40     0    66      2 0x00000000
[  210.064595] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.071959] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.079866] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.087500] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.095039] bioset          S c07aaa40     0    67      2 0x00000000
[  210.101697] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.109061] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.116968] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.124602] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.132141] bioset          S c07aaa40     0    68      2 0x00000000
[  210.138799] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.146163] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.154070] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.161704] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.169243] bioset          S c07aaa40     0    69      2 0x00000000
[  210.175902] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.183266] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.191172] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.198807] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.206346] bioset          S c07aaa40     0    70      2 0x00000000
[  210.213004] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.220369] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.228275] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.235910] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.243449] bioset          S c07aaa40     0    71      2 0x00000000
[  210.250107] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.257471] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.265378] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.273012] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.280552] bioset          S c07aaa40     0    72      2 0x00000000
[  210.287210] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.294574] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.302481] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.310115] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.317654] bioset          S c07aaa40     0    73      2 0x00000000
[  210.324313] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.331677] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.339584] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.347218] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.354757] bioset          S c07aaa40     0    74      2 0x00000000
[  210.361416] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.368780] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.376687] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.384322] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.391861] bioset          S c07aaa40     0    75      2 0x00000000
[  210.398520] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.405884] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.413790] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.421425] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.428964] irq/160-44e0b00 S c07aaa40     0    76      2 0x00000000
[  210.435617] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.442990] [<c07ab34c>] (schedule) from [<c019ffc4>] (irq_thread+0xb0/0x200)
[  210.450444] [<c019ffc4>] (irq_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.457716] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.465255] irq/161-4802a00 S c07aaa40     0    77      2 0x00000000
[  210.471910] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.479273] [<c07ab34c>] (schedule) from [<c019ffc4>] (irq_thread+0xb0/0x200)
[  210.486726] [<c019ffc4>] (irq_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.493998] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.501537] irq/33-48060000 S c07aaa40     0    78      2 0x00000000
[  210.508191] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.515554] [<c07ab34c>] (schedule) from [<c019ffc4>] (irq_thread+0xb0/0x200)
[  210.523007] [<c019ffc4>] (irq_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.530279] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.537818] bioset          S c07aaa40     0    79      2 0x00000000
[  210.544477] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.551841] [<c07ab34c>] (schedule) from [<c0154da0>] (rescuer_thread+0x28c/0x300)
[  210.559748] [<c0154da0>] (rescuer_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.567382] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.574922] mmcqd/1         S c07aaa40     0    80      2 0x00000000
[  210.581575] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.588941] [<c07ab34c>] (schedule) from [<c0616eac>] (mmc_queue_thread+0x11c/0x174)
[  210.597030] [<c0616eac>] (mmc_queue_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.604846] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.612385] kworker/0:1H    S c07aaa40     0    81      2 0x00000000
[  210.619044] [<c07aaa40>] (__schedule) from [<c07ab34c>] (schedule+0x44/0x9c)
[  210.626407] [<c07ab34c>] (schedule) from [<c01546e8>] (worker_thread+0xa4/0x4d0)
[  210.634133] [<c01546e8>] (worker_thread) from [<c015a6b4>] (kthread+0xd4/0xf0)
[  210.641676] [<c015a6b4>] (kthread) from [<c01078d0>] (ret_from_fork+0x14/0x24)
[  210.649243] Sched Debug Version: v0.11, 4.7.0 #1
[  210.654064] ktime                                   : 210640.702525
[  210.660606] sched_clk                               : 210649.237069
[  210.667147] cpu_clk                                 : 210649.237403
[  210.673689] jiffies                                 : 4294958083
[  210.679956] 
[  210.681507] sysctl_sched
[  210.684148]   .sysctl_sched_latency                    : 6.000000
[  210.690508]   .sysctl_sched_min_granularity            : 0.750000
[  210.696868]   .sysctl_sched_wakeup_granularity         : 1.000000
[  210.703227]   .sysctl_sched_child_runs_first           : 0
[  210.708951]   .sysctl_sched_features                   : 44859
[  210.715038]   .sysctl_sched_tunable_scaling            : 1 (logaritmic)
[  210.721940] 
[  210.723493] cpu#0
[  210.725499]   .nr_running                    : 0
[  210.730316]   .load                          : 0
[  210.735133]   .nr_switches                   : 2637
[  210.740222]   .nr_load_updates               : 770
[  210.745221]   .nr_uninterruptible            : 1
[  210.750039]   .next_balance                  : 4294.937296
[  210.755763]   .curr->pid                     : 0
[  210.760581]   .clock                         : 207629.102789
[  210.766487]   .clock_task                    : 207629.102789
[  210.772392]   .cpu_load[0]                   : 0
[  210.777209]   .cpu_load[1]                   : 0
[  210.782026]   .cpu_load[2]                   : 0
[  210.786843]   .cpu_load[3]                   : 0
[  210.791659]   .cpu_load[4]                   : 0
[  210.796476]   .avg_idle                      : 1000000
[  210.801837]   .max_idle_balance_cost         : 500000
[  210.807541] 
[  210.807541] cfs_rq[0]:/
[  210.811644]   .exec_clock                    : 0.000000
[  210.817129]   .MIN_vruntime                  : 0.000001
[  210.822586]   .min_vruntime                  : 2219.665999
[  210.828311]   .max_vruntime                  : 0.000001
[  210.833764]   .spread                        : 0.000000
[  210.839217]   .spread0                       : 0.000000
[  210.844669]   .nr_spread_over                : 0
[  210.849486]   .nr_running                    : 0
[  210.854302]   .load                          : 0
[  210.859119]   .load_avg                      : 0
[  210.863936]   .runnable_load_avg             : 0
[  210.868753]   .util_avg                      : 0
[  210.873569]   .removed_load_avg              : 0
[  210.878386]   .removed_util_avg              : 0
[  210.883203]   .tg_load_avg_contrib           : 0
[  210.888020]   .tg_load_avg                   : 0
[  210.892836]   .throttled                     : 0
[  210.897653]   .throttle_count                : 0
[  210.902478] 
[  210.902478] rt_rq[0]:/
[  210.906482]   .rt_nr_running                 : 0
[  210.911298]   .rt_throttled                  : 0
[  210.916116]   .rt_time                       : 0.000000
[  210.921569]   .rt_runtime                    : 950.000000
[  210.927203] 
[  210.927203] dl_rq[0]:
[  210.931115]   .dl_nr_running                 : 0
[  210.935932]   .dl_bw->bw                     : 996147
[  210.941203]   .dl_bw->total_bw               : 0
[  210.946022] 
[  210.946022] runnable tasks:
[  210.946022]             task   PID         tree-key  switches  prio     wait-time             sum-exec        sum-sleep
[  210.946022] ----------------------------------------------------------------------------------------------------------
[  210.972885]        swapper/0     1      2156.149123       430   120         0.000000      1585.136238         0.000000 /
[  210.984271]         kthreadd     2      2038.321501        79   120         0.000000        14.037962         0.000000 /
[  210.995650]      ksoftirqd/0     3      2215.763039        52   120         0.000000         2.544000         0.000000 /
[  211.007028]      kworker/0:0     4      1904.921171        13   120         0.000000         1.389583         0.000000 /
[  211.018406]     kworker/0:0H     5      2041.204781         7   100         0.000000         8.077250         0.000000 /
[  211.029784]     kworker/u2:0     6      2217.179165       265   120         0.000000       381.272297         0.000000 /
[  211.041161]        rcu_sched     7      2154.556373        55   120         0.000000        21.241542         0.000000 /
[  211.052539]           rcu_bh     8        16.105444         2   120         0.000000         0.039626         0.000000 /
[  211.063916]      migration/0     9         0.000000         4     0         0.000000         0.423750         0.000000 /
[  211.075293]    lru-add-drain    10        21.168027         2   100         0.000000         0.085249         0.000000 /
[  211.086670]          cpuhp/0    11        23.208855         3   120         0.000000         0.058416         0.000000 /
[  211.098047]        kdevtmpfs    12      1928.760087       161   120         0.000000        26.371584         0.000000 /
[  211.109425]            netns    13        61.744445         2   100         0.000000         1.661750         0.000000 /
[  211.120802]      kworker/0:1    14      2219.665999       410   120         0.000000       247.404410         0.000000 /
[  211.132180]       oom_reaper    15       251.102895         2   120         0.000000         0.323084         0.000000 /
[  211.143558]        writeback    16       256.870256         2   100         0.000000         0.064208         0.000000 /
[  211.154935]       kcompactd0    17       258.964766         2   120         0.000000         0.111833         0.000000 /
[  211.166312]           crypto    18       260.919055         2   100         0.000000         0.062918         0.000000 /
[  211.177689]           bioset    19       262.941979         2   100         0.000000         0.053625         0.000000 /
[  211.189066]          kblockd    20       264.973202         2   100         0.000000         0.069207         0.000000 /
[  211.200443]          ata_sff    21       288.694669         2   100         0.000000         0.130875         0.000000 /
[  211.211820]        watchdogd    22       294.705832         2   100         0.000000         0.098167         0.000000 /
[  211.223197]           rpciod    23       428.119413         2   100         0.000000         0.182249         0.000000 /
[  211.234574]          kswapd0    24       547.316984         3   120         0.000000         0.383958         0.000000 /
[  211.245951]           vmstat    25       445.549286         2   100         0.000000         0.070042         0.000000 /
[  211.257327]           nfsiod    26       447.076801         2   100         0.000000         0.068708         0.000000 /
[  211.268704]           bioset    37      1238.234375         2   100         0.000000         0.071458         0.000000 /
[  211.280081]           bioset    38      1240.257845         2   100         0.000000         0.058250         0.000000 /
[  211.291458]           bioset    39      1242.275639         2   100         0.000000         0.048500         0.000000 /
[  211.302835]           bioset    40      1244.296648         2   100         0.000000         0.049625         0.000000 /
[  211.314212]           bioset    41      1246.314693         2   100         0.000000         0.047916         0.000000 /
[  211.325589]           bioset    42      1248.333430         2   100         0.000000         0.046458         0.000000 /
[  211.336966]           bioset    43      1250.353030         2   100         0.000000         0.048793         0.000000 /
[  211.348342]           bioset    44      1252.372277         2   100         0.000000         0.048999         0.000000 /
[  211.359719]           bioset    45      1254.392090         2   100         0.000000         0.047709         0.000000 /
[  211.371096]           bioset    46      1256.412263         2   100         0.000000         0.047791         0.000000 /
[  211.382473]           bioset    47      1258.433322         2   100         0.000000         0.051001         0.000000 /
[  211.393850]           bioset    48      1260.452184         2   100         0.000000         0.049375         0.000000 /
[  211.405227]           bioset    49      1262.471106         2   100         0.000000         0.047375         0.000000 /
[  211.416603]           bioset    50      1264.491916         2   100         0.000000         0.046917         0.000000 /
[  211.427980]           bioset    51      1266.512992         2   100         0.000000         0.051041         0.000000 /
[  211.439356]           bioset    52      1268.547806         2   100         0.000000         0.072042         0.000000 /
[  211.450734]           bioset    53      1300.699923         2   100         0.000000         0.073208         0.000000 /
[  211.462111]           bioset    54      1302.717044         2   100         0.000000         0.056417         0.000000 /
[  211.473487]           bioset    55      1304.740238         2   100         0.000000         0.063041         0.000000 /
[  211.484864]           bioset    56      1307.786364         2   100         0.000000         0.067750         0.000000 /
[  211.496241]           bioset    57      1309.803349         2   100         0.000000         0.055708         0.000000 /
[  211.507618]           bioset    58      1311.825130         2   100         0.000000         0.056334         0.000000 /
[  211.518995]           bioset    59      1313.847701         2   100         0.000000         0.060875         0.000000 /
[  211.530371]           bioset    60      1315.883544         2   100         0.000000         0.073334         0.000000 /
[  211.541749]     kworker/u2:1    61      1764.180582         3   120         0.000000         0.166875         0.000000 /
[  211.553126]    ipv6_addrconf    63      1437.655997         2   100         0.000000         0.164501         0.000000 /
[  211.564504]      kworker/0:2    64      1981.529376         7   120         0.000000         8.763625         0.000000 /
[  211.575881]          deferwq    65      1508.836081         2   100         0.000000         0.130291         0.000000 /
[  211.587258]           bioset    66      1581.328288         2   100         0.000000         0.097625         0.000000 /
[  211.598636]           bioset    67      1592.245439         2   100         0.000000         0.076042         0.000000 /
[  211.610012]           bioset    68      1602.178951         2   100         0.000000         0.074792         0.000000 /
[  211.621389]           bioset    69      1612.120004         2   100         0.000000         0.075666         0.000000 /
[  211.632766]           bioset    70      1622.244925         2   100         0.000000         0.078291         0.000000 /
[  211.644142]           bioset    71      1631.857791         2   100         0.000000         0.073042         0.000000 /
[  211.655519]           bioset    72      1641.419973         2   100         0.000000         0.073667         0.000000 /
[  211.666896]           bioset    73      1651.738637         2   100         0.000000         0.061791         0.000000 /
[  211.678273]           bioset    74      1664.070092         2   100         0.000000         0.073001         0.000000 /
[  211.689651]           bioset    75      1767.096034         2   100         0.000000         0.067125         0.000000 /
[  211.701027]  irq/160-44e0b00    76         0.000000       274    49         0.000000        13.390751         0.000000 /
[  211.712404]  irq/161-4802a00    77         0.000000         2    49         0.000000         0.099084         0.000000 /
[  211.723780]  irq/33-48060000    78         0.000000         2    49         0.000000         0.243458         0.000000 /
[  211.735156]           bioset    79      1910.880292         2   100         0.000000         0.076584         0.000000 /
[  211.746533]          mmcqd/1    80      1924.364590         4   120         0.000000         1.093001         0.000000 /
[  211.757910]     kworker/0:1H    81      2156.095694         9   100         0.000000         4.953916         0.000000 /
[  211.769289] 
[  211.770844] 
[  211.770844] Showing all locks held in the system:
[  211.777327] 
[  211.778879] =============================================
[  211.778879] 
[  211.786060] Showing busy workqueues and worker pools:


- 20:54:05 [INFO] [  218.145014] sysrq: SysRq : Show backtrace of all active CPUs
[  218.150957] Sending NMI to all CPUs:
[  218.154693] NMI backtrace for cpu 0
[  218.158341] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.7.0 #1
[  218.164430] Hardware name: Generic AM33XX (Flattened Device Tree)
[  218.170823] [<c011005c>] (unwind_backtrace) from [<c010c250>] (show_stack+0x10/0x14)
[  218.178926] [<c010c250>] (show_stack) from [<c047f49c>] (dump_stack+0xb0/0xe4)
[  218.186478] [<c047f49c>] (dump_stack) from [<c0482eb8>] (nmi_cpu_backtrace+0x7c/0x88)
[  218.194658] [<c0482eb8>] (nmi_cpu_backtrace) from [<c010dbf8>] (raise_nmi+0x60/0x70)
[  218.202746] [<c010dbf8>] (raise_nmi) from [<c0482f84>] (nmi_trigger_all_cpu_backtrace+0xc0/0xf4)
[  218.211933] [<c0482f84>] (nmi_trigger_all_cpu_backtrace) from [<c04f9424>] (__handle_sysrq+0xd4/0x248)
[  218.221662] [<c04f9424>] (__handle_sysrq) from [<c05147c8>] (serial_omap_irq+0x374/0x3bc)
[  218.230213] [<c05147c8>] (serial_omap_irq) from [<c019ea30>] (handle_irq_event_percpu+0x44/0x3fc)
[  218.239482] [<c019ea30>] (handle_irq_event_percpu) from [<c019ee20>] (handle_irq_event+0x38/0x5c)
[  218.248754] [<c019ee20>] (handle_irq_event) from [<c01a1f14>] (handle_level_irq+0xb8/0x14c)
[  218.257478] [<c01a1f14>] (handle_level_irq) from [<c019e05c>] (generic_handle_irq+0x20/0x34)
[  218.266293] [<c019e05c>] (generic_handle_irq) from [<c019e350>] (__handle_domain_irq+0x64/0xe0)
[  218.275382] [<c019e350>] (__handle_domain_irq) from [<c07b06b8>] (__irq_svc+0x58/0x78)
[  218.283661] [<c07b06b8>] (__irq_svc) from [<c010831c>] (arch_cpu_idle+0x20/0x3c)
[  218.291389] [<c010831c>] (arch_cpu_idle) from [<c01844d8>] (cpu_startup_entry+0x30c/0x3f0)
[  218.300034] [<c01844d8>] (cpu_startup_entry) from [<c0b00c08>] (start_kernel+0x340/0x3b4)
[  218.308579] [<c0b00c08>] (start_kernel) from [<8000807c>] (0x8000807c)
[  218.315407] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[  218.323853] pgd = c0004000
[  218.326675] [00000000] *pgd=00000000
[  218.330423] Internal error: Oops: 80000005 [#1] SMP ARM
[  218.335880] Modules linked in:
[  218.339074] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.7.0 #1
[  218.345162] Hardware name: Generic AM33XX (Flattened Device Tree)
[  218.351523] task: c0c065c0 ti: c0c00000 task.ti: c0c00000
[  218.357157] PC is at 0x0
[  218.359802] LR is at nmi_trigger_all_cpu_backtrace+0xc0/0xf4
[  218.365709] pc : [<00000000>]    lr : [<c0482f84>]    psr: 60000193
[  218.365709] sp : c0c01e68  ip : 00000000  fp : c0c029cc
[  218.377694] r10: 00000061  r9 : 00000000  r8 : 00000007
[  218.383146] r7 : 00000000  r6 : c010db98  r5 : c0c037f8  r4 : 00000001
[  218.389960] r3 : 00000000  r2 : 00000000  r1 : 00000007  r0 : c0c037f8
[  218.396776] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[  218.404315] Control: 10c5387d  Table: 80004019  DAC: 00000051
[  218.410312] Process swapper/0 (pid: 0, stack limit = 0xc0c00218)
[  218.416582] Stack: (0xc0c01e68 to 0xc0c02000)
[  218.421134] 1e60:                   c0c87680 c0c4456c 0000006c 00000001 00000007 c04f9424
[  218.429675] 1e80: 00000000 00000000 c04f9350 c052eb88 eebae810 00000101 00000000 00000002
[  218.438217] 1ea0: 00000005 c05147c8 00000000 60000193 ee95c510 eee72b40 ee95c560 ee95c510
[  218.446757] 1ec0: 00000000 0000009e 00000000 00000000 c0c029cc c019ea30 60000193 00000000
[  218.455298] 1ee0: 60000193 ee95c500 ee95c560 ee95c500 ee95c560 ee95c510 00000000 00000001
[  218.463839] 1f00: ee814000 c0b759f8 c0cbcc26 c019ee20 ee95c500 ee95c560 ee95c510 c01a1f14
[  218.472381] 1f20: c0b74944 0000009e c0c035fc c019e05c c0b74944 c019e350 c010831c 20000013
[  218.480921] 1f40: ffffffff c0c01f8c c0c029cc c0cbde98 c0b759f8 c07b06b8 00000001 00000001
[  218.489462] 1f60: 00000000 c0c065c0 c0c02a38 00000000 00000000 c0cbde98 c0c029cc c0cbde98
[  218.498004] 1f80: c0b759f8 c0cbcc26 00000000 c0c01fa8 c018ff64 c010831c 20000013 ffffffff
[  218.506545] 1fa0: 00000051 c0108318 c0c02a38 c01844d8 c0cc2050 c0c02900 00000000 c0b00c08
[  218.515086] 1fc0: ffffffff ffffffff 00000000 c0b00684 00000000 c0b52a48 c0cc2214 c0c029ac
[  218.523627] 1fe0: c0b52a44 c0c08228 80004059 413fc082 00000000 8000807c 00000000 00000000
[  218.532170] [<c0482f84>] (nmi_trigger_all_cpu_backtrace) from [<c04f9424>] (__handle_sysrq+0xd4/0x248)
[  218.541892] [<c04f9424>] (__handle_sysrq) from [<c05147c8>] (serial_omap_irq+0x374/0x3bc)
[  218.550436] [<c05147c8>] (serial_omap_irq) from [<c019ea30>] (handle_irq_event_percpu+0x44/0x3fc)
[  218.559703] [<c019ea30>] (handle_irq_event_percpu) from [<c019ee20>] (handle_irq_event+0x38/0x5c)
[  218.568971] [<c019ee20>] (handle_irq_event) from [<c01a1f14>] (handle_level_irq+0xb8/0x14c)
[  218.577694] [<c01a1f14>] (handle_level_irq) from [<c019e05c>] (generic_handle_irq+0x20/0x34)
[  218.586508] [<c019e05c>] (generic_handle_irq) from [<c019e350>] (__handle_domain_irq+0x64/0xe0)
[  218.595594] [<c019e350>] (__handle_domain_irq) from [<c07b06b8>] (__irq_svc+0x58/0x78)
[  218.603865] [<c07b06b8>] (__irq_svc) from [<c010831c>] (arch_cpu_idle+0x20/0x3c)
[  218.611590] [<c010831c>] (arch_cpu_idle) from [<c01844d8>] (cpu_startup_entry+0x30c/0x3f0)
[  218.620224] [<c01844d8>] (cpu_startup_entry) from [<c0b00c08>] (start_kernel+0x340/0x3b4)
[  218.628765] [<c0b00c08>] (start_kernel) from [<8000807c>] (0x8000807c)
[  218.635581] Code: bad PC value
[  218.638788] ---[ end trace 99ddf7059abf1fd2 ]---
[  218.643609] Kernel panic - not syncing: Fatal exception in interrupt
[  218.650256] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

- 20:54:16 [INFO] 
- 20:54:16 [INFO] Disconnected serial from am335x-evm
- 20:54:16 [INFO] Failed to boot on Iteration 61
- 20:54:16 [INFO] Disconnected all from am335x-evm
- 20:54:17 [INFO] Connected to am335x-evm via serial 
- 20:54:17 [INFO] Host: #check prompt
- 20:54:20 [ERROR] On command: #check prompt waiting for #check prompt.+?(?-mix:((?-mix:login:)|[Pp]assword)) >>> error: execution expired
- 20:54:20 [INFO] Target: 

- 20:54:20 [INFO] Host: #check prompt
- 20:54:22 [ERROR] On command: #check prompt waiting for #check prompt.+?(?-mix:[\w\d]+@.+[@:#]+) >>> error: execution expired
- 20:54:22 [INFO] Target: 

- 20:54:22 [INFO] Host: #check prompt
- 20:54:24 [ERROR] On command: #check prompt waiting for #check prompt.+?(?-mix:[\w\d]+@.+[@:#]+) >>> error: execution expired
- 20:54:24 [INFO] Target: 

- 20:54:24 [INFO] Host: #check prompt
- 20:54:26 [ERROR] On command: #check prompt waiting for #check prompt.+?(?-mix:[\w\d]+@.+[@:#]+) >>> error: execution expired
- 20:54:26 [INFO] Target: 

- 20:54:26 [INFO] Disconnected serial from am335x-evm
- 20:54:27 [INFO] Connected to am335x-evm via serial 
- 20:54:27 [INFO] Host: 
- 20:54:28 [INFO] Target: 
-- 

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Kernel NFS boot failure
  2016-08-03 11:41 Kernel NFS boot failure Grygorii Strashko
@ 2016-08-03 12:06 ` Vladimir Murzin
  2016-08-03 15:04   ` Grygorii Strashko
  0 siblings, 1 reply; 5+ messages in thread
From: Vladimir Murzin @ 2016-08-03 12:06 UTC (permalink / raw)
  To: Grygorii Strashko, netdev
  Cc: linux-omap@vger.kernel.org, Sekhar Nori, linux-arm

Hi,

On 03/08/16 12:41, Grygorii Strashko wrote:
> Hi All,
> 
> We observe Kernel boot failure while running NFS boot stress test (1000 iterations):
> - Linux version 4.7.0 
> - am335x-evm (TI AM335x EVM)
> - failure rate 10-20 times per test.
> Originally this issue was reproduced using TI Kernel 4.4
> ( git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git, branch: ti-linux-4.4.y)
> on both am335x-evm and am57xx-beagle-x15(am57xx-evm) platforms.
> This issues has not been reproduced with TI Kernel 4.1 before.
> 
> The SysRq shows that system stuck in nfs_fs_mount()
> 
> [  207.904632] [<c07ab34c>] (schedule) from [<c0783554>] (rpc_wait_bit_killable+0x2c/0xd8)
> [  207.912996] [<c0783554>] (rpc_wait_bit_killable) from [<c07ab7f0>] (__wait_on_bit+0x84/0xc0)
> [  207.921812] [<c07ab7f0>] (__wait_on_bit) from [<c07ab890>] (out_of_line_wait_on_bit+0x64/0x70)
> [  207.930810] [<c07ab890>] (out_of_line_wait_on_bit) from [<c07843f4>] (__rpc_execute+0x18c/0x544)
> [  207.939988] [<c07843f4>] (__rpc_execute) from [<c0779f24>] (rpc_run_task+0x13c/0x158)
> [  207.948166] [<c0779f24>] (rpc_run_task) from [<c0779f84>] (rpc_call_sync+0x44/0xc4)
> [  207.956163] [<c0779f84>] (rpc_call_sync) from [<c077a04c>] (rpc_ping+0x48/0x68)
> [  207.963796] [<c077a04c>] (rpc_ping) from [<c077a158>] (rpc_create_xprt+0xec/0x164)
> [  207.971702] [<c077a158>] (rpc_create_xprt) from [<c077a2c0>] (rpc_create+0xf0/0x1a0)
> [  207.979794] [<c077a2c0>] (rpc_create) from [<c0393088>] (nfs_create_rpc_client+0xd4/0xec)
> [  207.988338] [<c0393088>] (nfs_create_rpc_client) from [<c0394d10>] (nfs_init_client+0x20/0x78)
> [  207.997332] [<c0394d10>] (nfs_init_client) from [<c03949d4>] (nfs_create_server+0xa0/0x3bc)
> [  208.006057] [<c03949d4>] (nfs_create_server) from [<c03b197c>] (nfs3_create_server+0x8/0x20)
> [  208.014879] [<c03b197c>] (nfs3_create_server) from [<c03a34c4>] (nfs_try_mount+0xc4/0x1f0)
> [  208.023513] [<c03a34c4>] (nfs_try_mount) from [<c03a2c48>] (nfs_fs_mount+0x290/0x910)
> [  208.031702] [<c03a2c48>] (nfs_fs_mount) from [<c0294d24>] (mount_fs+0x44/0x168)
> 
> Has anyone else seen this issue?
> 
> I'd be appreciated for any help or advice related to this issue?

I did not look at details, but because it is 4.4 and __wait_on_bit
showed up you might want to look at [1]

[1] https://lkml.org/lkml/2015/11/20/472

Just my 2p.
Vladimir

> 
> Thanks in advance.
> 
> regards,
> -grygorii

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Kernel NFS boot failure
  2016-08-03 12:06 ` Vladimir Murzin
@ 2016-08-03 15:04   ` Grygorii Strashko
  2016-08-11 16:25     ` Grygorii Strashko
  0 siblings, 1 reply; 5+ messages in thread
From: Grygorii Strashko @ 2016-08-03 15:04 UTC (permalink / raw)
  To: Vladimir Murzin, netdev
  Cc: linux-omap@vger.kernel.org, Sekhar Nori, open list, linux-arm

Hi Vladimir,

On 08/03/2016 03:06 PM, Vladimir Murzin wrote:
> On 03/08/16 12:41, Grygorii Strashko wrote:
>> We observe Kernel boot failure while running NFS boot stress test (1000 iterations):
>> - Linux version 4.7.0 

I'd like to pay your attention that this issue also reproducible with
Kernel 4.7.0!
The same can be seen from the log I've provided in first e-mail:
[    0.000000] Linux version 4.7.0 (lcpdbld@dflsdit-build06.dal.design.ti.com) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #1 SMP Fri Jul 29 17:41:27 CDT 2016


I've not run the test with current master at it's not been tagged yet.

>> - am335x-evm (TI AM335x EVM)
>> - failure rate 10-20 times per test.
>> Originally this issue was reproduced using TI Kernel 4.4
>> ( git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git, branch: ti-linux-4.4.y)
>> on both am335x-evm and am57xx-beagle-x15(am57xx-evm) platforms.
>> This issues has not been reproduced with TI Kernel 4.1 before.
>>
>> The SysRq shows that system stuck in nfs_fs_mount()
>>
>> [  207.904632] [<c07ab34c>] (schedule) from [<c0783554>] (rpc_wait_bit_killable+0x2c/0xd8)
>> [  207.912996] [<c0783554>] (rpc_wait_bit_killable) from [<c07ab7f0>] (__wait_on_bit+0x84/0xc0)
>> [  207.921812] [<c07ab7f0>] (__wait_on_bit) from [<c07ab890>] (out_of_line_wait_on_bit+0x64/0x70)
>> [  207.930810] [<c07ab890>] (out_of_line_wait_on_bit) from [<c07843f4>] (__rpc_execute+0x18c/0x544)
>> [  207.939988] [<c07843f4>] (__rpc_execute) from [<c0779f24>] (rpc_run_task+0x13c/0x158)
>> [  207.948166] [<c0779f24>] (rpc_run_task) from [<c0779f84>] (rpc_call_sync+0x44/0xc4)
>> [  207.956163] [<c0779f84>] (rpc_call_sync) from [<c077a04c>] (rpc_ping+0x48/0x68)
>> [  207.963796] [<c077a04c>] (rpc_ping) from [<c077a158>] (rpc_create_xprt+0xec/0x164)
>> [  207.971702] [<c077a158>] (rpc_create_xprt) from [<c077a2c0>] (rpc_create+0xf0/0x1a0)
>> [  207.979794] [<c077a2c0>] (rpc_create) from [<c0393088>] (nfs_create_rpc_client+0xd4/0xec)
>> [  207.988338] [<c0393088>] (nfs_create_rpc_client) from [<c0394d10>] (nfs_init_client+0x20/0x78)
>> [  207.997332] [<c0394d10>] (nfs_init_client) from [<c03949d4>] (nfs_create_server+0xa0/0x3bc)
>> [  208.006057] [<c03949d4>] (nfs_create_server) from [<c03b197c>] (nfs3_create_server+0x8/0x20)
>> [  208.014879] [<c03b197c>] (nfs3_create_server) from [<c03a34c4>] (nfs_try_mount+0xc4/0x1f0)
>> [  208.023513] [<c03a34c4>] (nfs_try_mount) from [<c03a2c48>] (nfs_fs_mount+0x290/0x910)
>> [  208.031702] [<c03a2c48>] (nfs_fs_mount) from [<c0294d24>] (mount_fs+0x44/0x168)
>>
>> Has anyone else seen this issue?
>>
>> I'd be appreciated for any help or advice related to this issue?
> 
> I did not look at details, but because it is 4.4 and __wait_on_bit
> showed up you might want to look at [1]
> 
> [1] https://lkml.org/lkml/2015/11/20/472

Thanks. I'll take a look.

-- 
regards,
-grygorii

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: Kernel NFS boot failure
  2016-08-03 15:04   ` Grygorii Strashko
@ 2016-08-11 16:25     ` Grygorii Strashko
  2016-08-19 11:14       ` Grygorii Strashko
  0 siblings, 1 reply; 5+ messages in thread
From: Grygorii Strashko @ 2016-08-11 16:25 UTC (permalink / raw)
  To: netdev, Trond Myklebust, linux-nfs, Anna Schumaker
  Cc: Vladimir Murzin, linux-omap@vger.kernel.org, Sekhar Nori,
	open list, linux-arm, Neil Brown

On 08/03/2016 06:04 PM, Grygorii Strashko wrote:
> Hi Vladimir,
> 
> On 08/03/2016 03:06 PM, Vladimir Murzin wrote:
>> On 03/08/16 12:41, Grygorii Strashko wrote:
>>> We observe Kernel boot failure while running NFS boot stress test (1000 iterations):
>>> - Linux version 4.7.0 
> 
> I'd like to pay your attention that this issue also reproducible with
> Kernel 4.7.0!
> The same can be seen from the log I've provided in first e-mail:
> [    0.000000] Linux version 4.7.0 (lcpdbld@dflsdit-build06.dal.design.ti.com) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #1 SMP Fri Jul 29 17:41:27 CDT 2016
> 
> 
> I've not run the test with current master at it's not been tagged yet.

Still in progress. rc1 unstable on my platforms due to other issues :(

> 
>>> - am335x-evm (TI AM335x EVM)
>>> - failure rate 10-20 times per test.
>>> Originally this issue was reproduced using TI Kernel 4.4
>>> ( git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git, branch: ti-linux-4.4.y)
>>> on both am335x-evm and am57xx-beagle-x15(am57xx-evm) platforms.
>>> This issues has not been reproduced with TI Kernel 4.1 before.
>>>
>>> The SysRq shows that system stuck in nfs_fs_mount()
>>>
>>> [  207.904632] [<c07ab34c>] (schedule) from [<c0783554>] (rpc_wait_bit_killable+0x2c/0xd8)
>>> [  207.912996] [<c0783554>] (rpc_wait_bit_killable) from [<c07ab7f0>] (__wait_on_bit+0x84/0xc0)
>>> [  207.921812] [<c07ab7f0>] (__wait_on_bit) from [<c07ab890>] (out_of_line_wait_on_bit+0x64/0x70)
>>> [  207.930810] [<c07ab890>] (out_of_line_wait_on_bit) from [<c07843f4>] (__rpc_execute+0x18c/0x544)
>>> [  207.939988] [<c07843f4>] (__rpc_execute) from [<c0779f24>] (rpc_run_task+0x13c/0x158)
>>> [  207.948166] [<c0779f24>] (rpc_run_task) from [<c0779f84>] (rpc_call_sync+0x44/0xc4)
>>> [  207.956163] [<c0779f84>] (rpc_call_sync) from [<c077a04c>] (rpc_ping+0x48/0x68)
>>> [  207.963796] [<c077a04c>] (rpc_ping) from [<c077a158>] (rpc_create_xprt+0xec/0x164)
>>> [  207.971702] [<c077a158>] (rpc_create_xprt) from [<c077a2c0>] (rpc_create+0xf0/0x1a0)
>>> [  207.979794] [<c077a2c0>] (rpc_create) from [<c0393088>] (nfs_create_rpc_client+0xd4/0xec)
>>> [  207.988338] [<c0393088>] (nfs_create_rpc_client) from [<c0394d10>] (nfs_init_client+0x20/0x78)
>>> [  207.997332] [<c0394d10>] (nfs_init_client) from [<c03949d4>] (nfs_create_server+0xa0/0x3bc)
>>> [  208.006057] [<c03949d4>] (nfs_create_server) from [<c03b197c>] (nfs3_create_server+0x8/0x20)
>>> [  208.014879] [<c03b197c>] (nfs3_create_server) from [<c03a34c4>] (nfs_try_mount+0xc4/0x1f0)
>>> [  208.023513] [<c03a34c4>] (nfs_try_mount) from [<c03a2c48>] (nfs_fs_mount+0x290/0x910)
>>> [  208.031702] [<c03a2c48>] (nfs_fs_mount) from [<c0294d24>] (mount_fs+0x44/0x168)
>>>
>>> Has anyone else seen this issue?
>>>
>>> I'd be appreciated for any help or advice related to this issue?
>>
>> I did not look at details, but because it is 4.4 and __wait_on_bit
>> showed up you might want to look at [1]
>>
>> [1] https://lkml.org/lkml/2015/11/20/472
> 
> Thanks. I'll take a look.
> 

I've checked this thread and all three commits mentioned there are present in K4.4
>=3.17
commit 743162013d40  sched: Remove proliferation of wait_on_bit() action functions
>=4.4
commit 68985633bccb  sched/wait: Fix signal handling in bit wait helpers
>=4.4
commit dfd01f026058  sched/wait: Fix the signal handling fix


Also, It seems first patch, probably, has copy-past error.
I'm not sure and it may be that patch is correct :)
Any way, It doesn't help with this issue if I use wait_on_bit_lock_io in nfs_page_group_lock().

743162013d40 ("sched: Remove proliferation of wait_on_bit() action functions")
-- does:

diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index b6ee3a6..6104d35 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -138,12 +138,6 @@ nfs_iocounter_wait(struct nfs_io_counter *c)
        return __nfs_iocounter_wait(c);
 }
 
-static int nfs_wait_bit_uninterruptible(void *word)
-{
-       io_schedule();
-       return 0;
-}
-
 /*
  * nfs_page_group_lock - lock the head of the page group
  * @req - request in group that is to be locked
@@ -158,7 +152,6 @@ nfs_page_group_lock(struct nfs_page *req)
        WARN_ON_ONCE(head != head->wb_head);
 
        wait_on_bit_lock(&head->wb_flags, PG_HEADLOCK,
-                       nfs_wait_bit_uninterruptible,

[GS] But it seems should be wait_on_bit_lock_io() <----

                        TASK_UNINTERRUPTIBLE);
 }
 
@@ -425,9 +418,8 @@ void nfs_release_request(struct nfs_page *req)
 int
 nfs_wait_on_request(struct nfs_page *req)
 {
-       return wait_on_bit(&req->wb_flags, PG_BUSY,
-                       nfs_wait_bit_uninterruptible,
-                       TASK_UNINTERRUPTIBLE);
+       return wait_on_bit_io(&req->wb_flags, PG_BUSY,
+                             TASK_UNINTERRUPTIBLE);
 }




-- 
regards,
-grygorii

^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: Kernel NFS boot failure
  2016-08-11 16:25     ` Grygorii Strashko
@ 2016-08-19 11:14       ` Grygorii Strashko
  0 siblings, 0 replies; 5+ messages in thread
From: Grygorii Strashko @ 2016-08-19 11:14 UTC (permalink / raw)
  To: netdev, Trond Myklebust, linux-nfs, Anna Schumaker
  Cc: Vladimir Murzin, Neil Brown, Sekhar Nori, open list,
	linux-omap@vger.kernel.org, linux-arm

Hi All,
On 08/11/2016 07:25 PM, Grygorii Strashko wrote:
> On 08/03/2016 06:04 PM, Grygorii Strashko wrote:
>> Hi Vladimir,
>>
>> On 08/03/2016 03:06 PM, Vladimir Murzin wrote:
>>> On 03/08/16 12:41, Grygorii Strashko wrote:
>>>> We observe Kernel boot failure while running NFS boot stress test (1000 iterations):
>>>> - Linux version 4.7.0 
>>
>> I'd like to pay your attention that this issue also reproducible with
>> Kernel 4.7.0!
>> The same can be seen from the log I've provided in first e-mail:
>> [    0.000000] Linux version 4.7.0 (lcpdbld@dflsdit-build06.dal.design.ti.com) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #1 SMP Fri Jul 29 17:41:27 CDT 2016
>>
>>
>> I've not run the test with current master at it's not been tagged yet.
> 
> Still in progress. rc1 unstable on my platforms due to other issues :(
> 
>>
>>>> - am335x-evm (TI AM335x EVM)
>>>> - failure rate 10-20 times per test.
>>>> Originally this issue was reproduced using TI Kernel 4.4
>>>> ( git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git, branch: ti-linux-4.4.y)
>>>> on both am335x-evm and am57xx-beagle-x15(am57xx-evm) platforms.
>>>> This issues has not been reproduced with TI Kernel 4.1 before.
>>>>
>>>> The SysRq shows that system stuck in nfs_fs_mount()
>>>>
>>>> [  207.904632] [<c07ab34c>] (schedule) from [<c0783554>] (rpc_wait_bit_killable+0x2c/0xd8)
>>>> [  207.912996] [<c0783554>] (rpc_wait_bit_killable) from [<c07ab7f0>] (__wait_on_bit+0x84/0xc0)
>>>> [  207.921812] [<c07ab7f0>] (__wait_on_bit) from [<c07ab890>] (out_of_line_wait_on_bit+0x64/0x70)
>>>> [  207.930810] [<c07ab890>] (out_of_line_wait_on_bit) from [<c07843f4>] (__rpc_execute+0x18c/0x544)
>>>> [  207.939988] [<c07843f4>] (__rpc_execute) from [<c0779f24>] (rpc_run_task+0x13c/0x158)
>>>> [  207.948166] [<c0779f24>] (rpc_run_task) from [<c0779f84>] (rpc_call_sync+0x44/0xc4)
>>>> [  207.956163] [<c0779f84>] (rpc_call_sync) from [<c077a04c>] (rpc_ping+0x48/0x68)
>>>> [  207.963796] [<c077a04c>] (rpc_ping) from [<c077a158>] (rpc_create_xprt+0xec/0x164)
>>>> [  207.971702] [<c077a158>] (rpc_create_xprt) from [<c077a2c0>] (rpc_create+0xf0/0x1a0)
>>>> [  207.979794] [<c077a2c0>] (rpc_create) from [<c0393088>] (nfs_create_rpc_client+0xd4/0xec)
>>>> [  207.988338] [<c0393088>] (nfs_create_rpc_client) from [<c0394d10>] (nfs_init_client+0x20/0x78)
>>>> [  207.997332] [<c0394d10>] (nfs_init_client) from [<c03949d4>] (nfs_create_server+0xa0/0x3bc)
>>>> [  208.006057] [<c03949d4>] (nfs_create_server) from [<c03b197c>] (nfs3_create_server+0x8/0x20)
>>>> [  208.014879] [<c03b197c>] (nfs3_create_server) from [<c03a34c4>] (nfs_try_mount+0xc4/0x1f0)
>>>> [  208.023513] [<c03a34c4>] (nfs_try_mount) from [<c03a2c48>] (nfs_fs_mount+0x290/0x910)
>>>> [  208.031702] [<c03a2c48>] (nfs_fs_mount) from [<c0294d24>] (mount_fs+0x44/0x168)
>>>>

I was able to reproduce this issue with NFS/SUNRPC debug logs enabled using TI kernel 4.4.
I'd be appreciated for any help :( and be happy to run any kind of tests or check debug patches if needed.

>From the logs I found that problem happens when rpc_task 2 is freeing too late as in the below log.
(marked as [GS])


Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Linux version 4.4.18-32575-g5db1dce (lcpdbld@dflsdit-build06.dal.design.ti.com) (gcc version 4.9.3 20150413 (prerelease) (Linaro GCC 4.9-2015.05) ) #2 SMP PREEMPT Wed Aug 17 10:49:14 CDT 2016
[    0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=30c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] Machine model: TI AM5728 EVM
[    0.000000] Reserved memory: created CMA memory pool at 0x0000000095800000, size 56 MiB
[    0.000000] Reserved memory: initialized node ipu2_cma@95800000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created CMA memory pool at 0x0000000099000000, size 64 MiB
[    0.000000] Reserved memory: initialized node dsp1_cma@99000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created CMA memory pool at 0x000000009d000000, size 32 MiB
[    0.000000] Reserved memory: initialized node ipu1_cma@9d000000, compatible id shared-dma-pool
[    0.000000] Reserved memory: created CMA memory pool at 0x000000009f000000, size 8 MiB
[    0.000000] Reserved memory: initialized node dsp2_cma@9f000000, compatible id shared-dma-pool
[    0.000000] cma: Reserved 24 MiB at 0x00000000fe400000
[    0.000000] Forcing write-allocate cache policy for SMP
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] OMAP4: Map 0x00000000ffd00000 to fe600000 for dram barrier
[    0.000000] DRA752 ES1.1
[    0.000000] PERCPU: Embedded 11 pages/cpu @eed31000 s14848 r8192 d22016 u45056
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 521792
[    0.000000] Kernel command line: console=ttyO2,115200n8  earlyprintk=serial,ttyO2,115200n8 rootwait  ip=:::::eth0:dhcp  root=/dev/nfs rw nfsroot=192.168.0.1:/home/tigtfarm10/NFS_exports/linux/am57xx-evm/autofs/f1a395609921e4cdad1b0bb2ec56f877,nolock,v3,tcp,rsize=4096,wsize=4096 
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 1875576K/2094080K available (6523K kernel code, 358K rwdata, 2408K rodata, 336K init, 289K bss, 30088K reserved, 188416K cma-reserved, 1283072K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc08c106c   (8933 kB)
[    0.000000]       .init : 0xc08c2000 - 0xc0916000   ( 336 kB)
[    0.000000]       .data : 0xc0916000 - 0xc096f9a0   ( 359 kB)
[    0.000000]        .bss : 0xc0972000 - 0xc09ba6b0   ( 290 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Build-time adjustment of leaf fanout to 32.
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] OMAP clockevent source: timer1 at 32786 Hz
[    0.000000] Architected cp15 timer(s) running at 6.14MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x16af5adb9, max_idle_ns: 440795202250 ns
[    0.000004] sched_clock: 56 bits at 6MHz, resolution 162ns, wraps every 4398046511023ns
[    0.000015] Switching to timer-based delay loop, resolution 162ns
[    0.000328] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
[    0.000337] OMAP clocksource: 32k_counter at 32768 Hz
[    0.000760] Console: colour dummy device 80x30
[    0.000776] WARNING: Your 'console=ttyO2' has been replaced by 'ttyS2'
[    0.000782] This ensures that you still see kernel messages. Please
[    0.000788] update your kernel commandline.
[    0.000801] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.29 BogoMIPS (lpj=61475)
[    0.000814] pid_max: default: 32768 minimum: 301
[    0.000906] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000916] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.001461] Initializing cgroup subsys io
[    0.001478] Initializing cgroup subsys memory
[    0.001502] Initializing cgroup subsys devices
[    0.001514] Initializing cgroup subsys freezer
[    0.001525] Initializing cgroup subsys perf_event
[    0.001536] Initializing cgroup subsys pids
[    0.001562] CPU: Testing write buffer coherency: ok
[    0.001764] /cpus/cpu@0 missing clock-frequency property
[    0.001781] /cpus/cpu@1 missing clock-frequency property
[    0.001791] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.001827] Setting up static identity map for 0x800082c0 - 0x80008318
[    0.080183] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.080250] Brought up 2 CPUs
[    0.080262] SMP: Total of 2 processors activated (24.59 BogoMIPS).
[    0.080269] CPU: All CPU(s) started in SVC mode.
[    0.080643] devtmpfs: initialized
[    0.106472] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
[    0.107342] omap_hwmod: l3_main_2 using broken dt data from ocp
[    0.304568] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.308002] pinctrl core: initialized pinctrl subsystem
[    0.308848] NET: Registered protocol family 16
[    0.309801] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.340242] cpuidle: using governor ladder
[    0.370275] cpuidle: using governor menu
[    0.378776] OMAP GPIO hardware version 0.1
[    0.385225] irq: no irq domain found for /ocp/l4@4a000000/scm@2000/pinmux@1400 !
[    0.409647] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.409657] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.410122] omap4_sram_init:Unable to allocate sram needed to handle errata I688
[    0.410131] omap4_sram_init:Unable to get sram pool needed to handle errata I688
[    0.410723] OMAP DMA hardware revision 0.0
[    0.444520] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
[    0.445630] edma 43300000.edma: memcpy is disabled
[    0.450477] edma 43300000.edma: TI EDMA DMA engine driver
[    0.454327] omap-iommu 40d01000.mmu: 40d01000.mmu registered
[    0.454507] omap-iommu 40d02000.mmu: 40d02000.mmu registered
[    0.454658] omap-iommu 58882000.mmu: 58882000.mmu registered
[    0.454806] omap-iommu 55082000.mmu: 55082000.mmu registered
[    0.455061] omap-iommu 41501000.mmu: 41501000.mmu registered
[    0.455249] omap-iommu 41502000.mmu: 41502000.mmu registered
[    0.458152] palmas 0-0058: Irq flag is 0x00000008
[    0.472649] palmas 0-0058: Muxing GPIO 2f, PWM 0, LED 0
[    0.554028] omap_i2c 48070000.i2c: bus 0 rev0.12 at 400 kHz
[    0.554526] omap_i2c 48060000.i2c: bus 2 rev0.12 at 400 kHz
[    0.555103] omap_i2c 4807c000.i2c: bus 4 rev0.12 at 400 kHz
[    0.555313] media: Linux media interface: v0.10
[    0.555368] Linux video capture interface: v2.00
[    0.555410] pps_core: LinuxPPS API ver. 1 registered
[    0.555417] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.555443] PTP clock support registered
[    0.555490] EDAC MC: Ver: 3.0.0
[    0.556248] omap-mailbox 4883c000.mailbox: omap mailbox rev 0x400
[    0.556543] omap-mailbox 4883e000.mailbox: omap mailbox rev 0x400
[    0.556831] omap-mailbox 48840000.mailbox: omap mailbox rev 0x400
[    0.557123] omap-mailbox 48842000.mailbox: omap mailbox rev 0x400
[    0.557444] Advanced Linux Sound Architecture Driver Initialized.
[    0.558290] clocksource: Switched to clocksource arch_sys_counter
[    0.569416] NET: Registered protocol family 2
[    0.569913] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.569977] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.570101] TCP: Hash tables configured (established 8192 bind 8192)
[    0.570149] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.570180] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.570325] NET: Registered protocol family 1
[    0.570361] RPC:       creating workqueue rpciod
[    0.570524] RPC:       registering /proc/net/rpc
[    0.570662] svc: Adding svc transport class 'tcp'
[    0.570670] svc: Adding svc transport class 'udp'
[    0.570687] RPC: Registered named UNIX socket transport module.
[    0.570694] RPC: Registered udp transport module.
[    0.570699] RPC: Registered tcp transport module.
[    0.570705] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.571727] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
[    0.574145] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.582005] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.582247] RPC:       creating workqueue nfsiod
[    0.582620] RPC:       registering /proc/net/rpc/nfs
[    0.582669] NFS: Registering the id_resolver key type
[    0.582700] Key type id_resolver registered
[    0.582707] Key type id_legacy registered
[    0.582770] ntfs: driver 2.1.32 [Flags: R/O].
[    0.584763] bounce: pool size: 64 pages
[    0.584920] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248)
[    0.584936] io scheduler noop registered
[    0.584949] io scheduler deadline registered
[    0.584984] io scheduler cfq registered (default)
[    0.589950] pinctrl-single 4a003400.pinmux: 282 pins at pa fc003400 size 1128
[    0.593494] PCI host bridge /ocp/axi@0/pcie@51000000 ranges:
[    0.593505]   No bus range found for /ocp/axi@0/pcie@51000000, using [bus 00-ff]
[    0.593536]    IO 0x20003000..0x20012fff -> 0x00000000
[    0.593556]   MEM 0x20013000..0x2fffffff -> 0x20013000
[    0.623979] dra7-pcie 51000000.pcie: link is not up
[    0.624163] dra7-pcie 51000000.pcie: PCI host bridge to bus 0000:00
[    0.624175] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.624185] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
[    0.624195] pci_bus 0000:00: root bus resource [mem 0x20013000-0x2fffffff]
[    0.624598] PCI: bus0: Fast back to back transfers disabled
[    0.638362] PCI: bus1: Fast back to back transfers disabled
[    0.638409] irq: no irq domain found for /ocp/axi@0/pcie@51000000/interrupt-controller !
[    0.638449] irq: no irq domain found for /ocp/axi@0/pcie@51000000/interrupt-controller !
[    0.638487] pci 0000:00:00.0: BAR 0: assigned [mem 0x20100000-0x201fffff]
[    0.638502] pci 0000:00:00.0: BAR 8: assigned [mem 0x20200000-0x202fffff]
[    0.638514] pci 0000:00:00.0: BAR 9: assigned [mem 0x20300000-0x203fffff pref]
[    0.638525] pci 0000:00:00.0: BAR 1: assigned [mem 0x20020000-0x2002ffff]
[    0.638538] pci 0000:00:00.0: BAR 7: assigned [io  0x1000-0x1fff]
[    0.638553] pci 0000:01:00.0: BAR 6: assigned [mem 0x20300000-0x2030ffff pref]
[    0.638564] pci 0000:01:00.0: BAR 5: assigned [mem 0x20200000-0x202001ff]
[    0.638584] pci 0000:01:00.0: BAR 4: assigned [io  0x1000-0x101f]
[    0.638603] pci 0000:01:00.0: BAR 0: assigned [io  0x1020-0x1027]
[    0.638621] pci 0000:01:00.0: BAR 2: assigned [io  0x1028-0x102f]
[    0.638639] pci 0000:01:00.0: BAR 1: assigned [io  0x1030-0x1033]
[    0.638658] pci 0000:01:00.0: BAR 3: assigned [io  0x1034-0x1037]
[    0.638676] pci 0000:00:00.0: PCI bridge to [bus 01]
[    0.638686] pci 0000:00:00.0:   bridge window [io  0x1000-0x1fff]
[    0.638698] pci 0000:00:00.0:   bridge window [mem 0x20200000-0x202fffff]
[    0.638708] pci 0000:00:00.0:   bridge window [mem 0x20300000-0x203fffff pref]
[    0.638936] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt
[    0.638947] pci 0000:01:00.0: Signaling PME through PCIe PME interrupt
[    0.640117] backlight supply power not found, using dummy regulator
[    0.701389] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
[    0.704755] 48020000.serial: ttyS2 at MMIO 0x48020000 (irq = 301, base_baud = 3000000) is a 8250
[    1.803275] console [ttyS2] enabled
[    1.807606] 48422000.serial: ttyS7 at MMIO 0x48422000 (irq = 302, base_baud = 3000000) is a 8250
[    1.817676] [drm] Initialized drm 1.1.0 20060810
[    1.824304] OMAP DSS rev 6.1
[    1.828074] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
[    1.836561] omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops)
[    1.852730] loop: module loaded
[    1.858711] libphy: Fixed MDIO Bus: probed
[    1.908322] davinci_mdio 48485000.mdio: davinci mdio revision 1.6
[    1.914447] davinci_mdio 48485000.mdio: detected phy mask fffffff9
[    1.924982] libphy: 48485000.mdio: probed
[    1.929054] davinci_mdio 48485000.mdio: phy[1]: device 48485000.mdio:01, driver Micrel KSZ9031 Gigabit PHY
[    1.938788] davinci_mdio 48485000.mdio: phy[2]: device 48485000.mdio:02, driver Micrel KSZ9031 Gigabit PHY
[    1.949155] cpsw 48484000.ethernet: Detected MACID = 74:da:ea:47:8b:26
[    1.956425] cpsw 48484000.ethernet: cpsw: Detected MACID = 74:da:ea:47:8b:27
[    1.964968] mousedev: PS/2 mouse device common for all mice
[    1.971072] i2c /dev entries driver
[    1.977349] gpio-fan gpio_fan: GPIO fan initialized
[    1.983301] tmp102 0-0048: initialized
[    1.989999] omap_hsmmc 4809c000.mmc: Got CD GPIO
[    2.038843] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr25 mode
[    2.045225] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr12 mode
[    2.068430] vdd_3v3: supplied by regen1
[    2.149616] ledtrig-cpu: registered to indicate activity on CPUs
[    2.159632] davinci-mcasp 48468000.mcasp: ERRATA i868 workaround is enabled
[    2.167775] NET: Registered protocol family 10
[    2.183098] sit: IPv6 over IPv4 tunneling driver
[    2.188303] NET: Registered protocol family 17
[    2.192973] Key type dns_resolver registered
[    2.197370] omap_voltage_late_init: Voltage driver support not added
[    2.204273] Adding alias for supply vdd,cpu0 -> vdd,4a003b20.oppdm
[    2.210499] Adding alias for supply vbb,cpu0 -> vbb,4a003b20.oppdm
[    2.217194] Adding alias for supply vdd,cpu0 -> vdd,4a003b20.oppdm
[    2.223424] Adding alias for supply vbb,cpu0 -> vbb,4a003b20.oppdm
[    2.231589] Power Management for TI OMAP4+ devices.
[    2.236687] Registering SWP/SWPB emulation handler
[    2.243623] dmm 4e000000.dmm: initialized all PAT entries
[    2.271099] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.277741] [drm] No driver support for vblank timestamp query.
[    2.337700] mmc0: host does not support reading read-only switch, assuming write-enable
[    2.349180] mmc0: new high speed SDHC card at address aaaa
[    2.355029] mmcblk0: mmc0:aaaa SL08G 7.40 GiB 
[    2.360674]  mmcblk0: p1 p2 p3
[    2.422915] mmc1: MAN_BKOPS_EN bit is not set
[    2.435914] mmc1: new DDR MMC card at address 0001
[    2.451053] mmcblk1: mmc1:0001 S10004 3.56 GiB 
[    2.465778] mmcblk1boot0: mmc1:0001 S10004 partition 1 4.00 MiB
[    2.471891] mmcblk1boot1: mmc1:0001 S10004 partition 2 4.00 MiB
[    2.478728]  mmcblk1: p1 p2 p3
[    2.562262] [drm] Enabling DMM ywrap scrolling
[    2.600301] Console: switching to colour frame buffer device 100x30
[    2.608627] omapdrm omapdrm.0: fb0: omapdrm frame buffer device
[    2.638571] [drm] Initialized omapdrm 1.0.0 20110917 on minor 0
[    2.645862] input: gpio_keys as /devices/platform/gpio_keys/input/input0
[    2.652827] hctosys: unable to open rtc device (rtc0)
[    2.668349] net eth0: initializing cpsw version 1.15 (0)
[    2.673702] net eth0: initialized cpsw ale version 1.4
[    2.678878] net eth0: ALE Table size 1024
[    2.770336] net eth0: phy found : id is : 0x221622
[    2.781714] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    6.776920] cpsw 48484000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
[    6.784829] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    6.798309] Sending DHCP requests ., OK
[    6.848304] IP-Config: Got DHCP answer from 192.168.0.1, my address is 192.168.0.97
[    6.856129] IP-Config: Complete:
[    6.859400]      device=eth0, hwaddr=74:da:ea:47:8b:26, ipaddr=192.168.0.97, mask=255.255.255.0, gw=192.168.0.1
[    6.870013]      host=192.168.0.97, domain=ti.com, nis-domain=(none)
[    6.876395]      bootserver=0.0.0.0, rootserver=192.168.0.1, rootpath=
[    6.882795]      nameserver0=192.0.2.2, nameserver1=192.0.2.3
[    6.888933] aic_dvdd_fixed: disabling
[    6.892611] vmmcwl_fixed: disabling
[    6.896293] ldousb: disabling
[    6.899787] ALSA device list:
[    6.902765]   No soundcards found.
[    6.907052] Root-NFS: nfsroot=/home/tigtfarm10/NFS_exports/linux/am57xx-evm/autofs/f1a395609921e4cdad1b0bb2ec56f877,nolock,v3,tcp,rsize=4096,wsize=4096
[    6.920854] NFS: nfs mount opts='vers=2,udp,rsize=4096,wsize=4096,nolock,v3,tcp,rsize=4096,wsize=4096,nolock,addr=192.168.0.1'
[    6.932330] NFS:   parsing nfs mount option 'vers=2'
[    6.937399] NFS:   parsing nfs mount option 'udp'
[    6.942194] NFS:   parsing nfs mount option 'rsize=4096'
[    6.947561] NFS:   parsing nfs mount option 'wsize=4096'
[    6.952967] NFS:   parsing nfs mount option 'nolock'
[    6.957980] NFS:   parsing nfs mount option 'v3'
[    6.962725] NFS:   parsing nfs mount option 'tcp'
[    6.967607] NFS:   parsing nfs mount option 'rsize=4096'
[    6.972959] NFS:   parsing nfs mount option 'wsize=4096'
[    6.978359] NFS:   parsing nfs mount option 'nolock'
[    6.983345] NFS:   parsing nfs mount option 'addr=192.168.0.1'
[    6.989222] NFS: MNTPATH: '/home/tigtfarm10/NFS_exports/linux/am57xx-evm/autofs/f1a395609921e4cdad1b0bb2ec56f877'
[    6.999540] NFS: sending MNT request for 192.168.0.1:/home/tigtfarm10/NFS_exports/linux/am57xx-evm/autofs/f1a395609921e4cdad1b0bb2ec56f877
[    7.012046] RPC:       set up xprt to 192.168.0.1 (autobind) via tcp
[    7.018454] RPC:       created transport eddc9000 with 65536 slots
[    7.024659] RPC:       creating mount client for 192.168.0.1 (xprt eddc9000)
[    7.031785] RPC:       creating UNIX authenticator for client ee8ead00
[    7.038376] RPC:       new task initialized, procpid 1
[    7.043532] RPC:       allocated task edd8cc00
[    7.047993] RPC:     1 __rpc_execute flags=0x680
[    7.052636] RPC:     1 call_start mount3 proc NULL (sync)
[    7.058055] RPC:     1 call_reserve (status 0)
[    7.062524] RPC:     1 reserved req ee8eac00 xid 57c6e885
[    7.067944] RPC:       wake_up_first(eddc9100 "xprt_sending")
[    7.073725] RPC:     1 call_reserveresult (status 0)
[    7.078720] RPC:     1 call_refresh (status 0)
[    7.083180] RPC:     1 holding NULL cred c096c2f0
[    7.087901] RPC:     1 refreshing NULL cred c096c2f0
[    7.092894] RPC:     1 call_refreshresult (status 0)
[    7.097877] RPC:     1 call_allocate (status 0)
[    7.102432] RPC:     1 allocated buffer of size 92 at eddc9800
[    7.108302] RPC:     1 call_bind (status 0)
[    7.112502] RPC:     1 rpcb_getport_async(192.168.0.1, 100005, 3, 6)
[    7.118913] RPC:     1 sleep_on(queue "xprt_binding" time 4294938008)
[    7.125380] RPC:     1 added to queue eddc90a4 "xprt_binding"
[    7.131159] RPC:     1 setting alarm for 60000 ms
[    7.135884] RPC:     1 rpcb_getport_async: trying rpcbind version 2
[    7.142197] RPC:       set up xprt to 192.168.0.1 (port 111) via tcp
[    7.148601] RPC:       created transport eddca800 with 65536 slots
[    7.154805] RPC:       creating rpcbind client for 192.168.0.1 (xprt eddca800)
[    7.162115] RPC:       creating UNIX authenticator for client edd8f200
[    7.168679] RPC:       new task initialized, procpid 1
[    7.173835] RPC:       allocated task edd8cd00
[    7.178367] RPC:       rpc_release_client(edd8f200)
[    7.183285] RPC:     2 __rpc_execute flags=0x681
[    7.187919] RPC:     2 call_start rpcbind2 proc GETPORT (async)
[    7.193875] RPC:     2 call_reserve (status 0)
[    7.193893] RPC:     1 sync task going to sleep
[    7.202894] RPC:     2 reserved req edd8f100 xid 926299b2
[    7.208328] RPC:       wake_up_first(eddca900 "xprt_sending")
[    7.214096] RPC:     2 call_reserveresult (status 0)
[    7.219089] RPC:     2 call_refresh (status 0)
[    7.223549] RPC:     2 looking up UNIX cred
[    7.227745] RPC:       looking up UNIX cred
[    7.231958] RPC:       allocating UNIX cred for uid 0 gid 0
[    7.237553] RPC:     2 refreshing UNIX cred edd8cf00
[    7.242799] RPC:     2 call_refreshresult (status 0)
[    7.247782] RPC:     2 call_allocate (status 0)
[    7.252340] RPC:     2 allocated buffer of size 508 at eddcb000
[    7.258296] RPC:     2 call_bind (status 0)
[    7.262494] RPC:     2 call_connect xprt eddca800 is not connected
[    7.268713] RPC:     2 xprt_connect xprt eddca800 is not connected
[    7.274917] RPC:     2 sleep_on(queue "xprt_pending" time 4294938023)
[    7.281392] RPC:     2 added to queue eddca95c "xprt_pending"
[    7.287159] RPC:     2 setting alarm for 60000 ms
[    7.291939] RPC:       xs_connect scheduled xprt eddca800
[    7.297405] RPC:       worker connecting xprt eddca800 via tcp to 192.168.0.1 (port 111)
[    7.305897] RPC:       eddca800 connect status 115 connected 0 sock state 2
[    7.306109] RPC:       xs_tcp_state_change client eddca800...
[    7.306114] RPC:       state 1 conn 0 dead 0 zapped 1 sk_shutdown 0
[    7.306118] RPC:     2 __rpc_wake_up_task (now 4294938026)
[    7.306120] RPC:     2 disabling timer
[    7.306124] RPC:     2 removed from queue eddca95c "xprt_pending"
[    7.306134] RPC:       __rpc_wake_up_task done
[    7.316303] RPC:     2 __rpc_execute flags=0x681
[    7.316306] RPC:     2 xprt_connect_status: retrying
[    7.316310] RPC:     2 call_connect_status (status -11)
[    7.316313] RPC:     2 call_timeout (minor)
[    7.316315] RPC:     2 call_bind (status 0)
[    7.316319] RPC:     2 call_connect xprt eddca800 is connected
[    7.316322] RPC:     2 call_transmit (status 0)
[    7.316324] RPC:     2 xprt_prepare_transmit
[    7.316328] RPC:     2 failed to lock transport eddca800
[    7.316331] RPC:     2 sleep_on(queue "xprt_sending" time 4294938027)
[    7.316334] RPC:     2 added to queue eddca900 "xprt_sending"
[    7.400396] RPC:       wake_up_first(eddca900 "xprt_sending")
[    7.406168] RPC:     2 __rpc_wake_up_task (now 4294938036)
[    7.411684] RPC:     2 removed from queue eddca900 "xprt_sending"
[    7.417800] RPC:       __rpc_wake_up_task done
[    7.422290] RPC:     2 __rpc_execute flags=0x681
[    7.426965] RPC:     2 call_status (status -11)
[    7.431657] RPC:     2 call_transmit (status 0)
[    7.436202] RPC:     2 xprt_prepare_transmit
[    7.440498] RPC:     2 rpc_xdr_encode (status 0)
[    7.445129] RPC:     2 marshaling UNIX cred edd8cf00
[    7.450122] RPC:     2 using AUTH_UNIX cred edd8cf00 to wrap rpc data
[    7.456587] RPC:     2 encoding PMAP_GETPORT call (100005, 3, 6, 0)
[    7.462885] RPC:     2 xprt_transmit(92)
[    7.466841] RPC:       xs_tcp_send_request(92) = 0
[    7.467095] RPC:       xs_tcp_data_ready...
[    7.467130] RPC:       xs_tcp_data_recv started
[    7.467134] RPC:       reading TCP record fragment of length 28
[    7.467136] RPC:       reading XID (4 bytes)
[    7.467138] RPC:       reading request with XID 926299b2
[    7.467140] RPC:       reading CALL/REPLY flag (4 bytes)
[    7.467142] RPC:       read reply XID 926299b2
[    7.467145] RPC:       XID 926299b2 read 20 bytes
[    7.467148] RPC:       xprt = eddca800, tcp_copied = 28, tcp_offset = 28, tcp_reclen = 28
[    7.467151] RPC:     2 xid 926299b2 complete (28 bytes received)
[    7.467154] RPC:       xs_tcp_data_recv done
[    7.528985] RPC:     2 xmit complete
[    7.532571] RPC:       wake_up_first(eddca900 "xprt_sending")
[    7.538348] RPC:     2 call_status (status 28)
[    7.542806] RPC:     2 call_decode (status 28)
[    7.547263] RPC:     2 validating UNIX cred edd8cf00
[    7.552255] RPC:     2 using AUTH_UNIX cred edd8cf00 to unwrap rpc data
[    7.558920] RPC:     2 PMAP_GETPORT result: 41203
[    7.563638] RPC:     2 call_decode result 0
[    7.567834] RPC:       setting port for xprt eddc9000 to 41203
[    7.573698] RPC:     2 rpcb_getport_done(status 0, port 41203)
[    7.579561] RPC:     2 return 0, status 0
[    7.583582] RPC:     2 release task
[    7.587081] RPC:       freeing buffer of size 508 at eddcb000
[    7.592856] RPC:     2 release request edd8f100
[    7.597401] RPC:       wake_up_first(eddca9b8 "xprt_backlog")
[    7.603177] RPC:       rpc_release_client(edd8f200)
[    7.608072] RPC:       destroying rpcbind client for 192.168.0.1
[    7.614135] RPC:       destroying transport eddca800
[    7.619150] RPC:       xs_destroy xprt eddca800
[    7.623695] RPC:       xs_close xprt eddca800
[    7.628078] RPC:       xs_tcp_state_change client eddca800...
[    7.633856] RPC:       state 4 conn 1 dead 0 zapped 1 sk_shutdown 3
[    7.640180] RPC:       xs_tcp_state_change client eddca800...
[    7.645947] RPC:       state 5 conn 0 dead 0 zapped 1 sk_shutdown 3
[    7.652265] RPC:       xs_tcp_state_change client eddca800...
[    7.658031] RPC:       state 7 conn 0 dead 0 zapped 1 sk_shutdown 3
[    7.664329] RPC:       disconnected transport eddca800
[    7.669493] RPC:       xs_tcp_state_change client eddca800...
[    7.675259] RPC:       state 7 conn 0 dead 0 zapped 1 sk_shutdown 3
[    7.681556] RPC:       disconnected transport eddca800
[    7.686711] RPC:       xs_tcp_data_ready...
[    7.690938] RPC:       disconnected transport eddca800
[    7.696099] RPC:     1 __rpc_wake_up_task (now 4294938065)
[    7.701613] RPC:     1 disabling timer
[    7.705374] RPC:     1 removed from queue eddc90a4 "xprt_binding"
[    7.711499] RPC:       __rpc_wake_up_task done

[GS] In good case "RPC:     2 freeing task" can be seen here

[    7.711506] RPC:     1 sync task resuming
[    7.711510] RPC:     1 call_bind_status (status 0)
[    7.711512] RPC:     1 call_connect xprt eddc9000 is not connected
[    7.711515] RPC:     1 xprt_connect xprt eddc9000 is not connected
[    7.711519] RPC:     1 sleep_on(queue "xprt_pending" time 4294938067)
[    7.711521] RPC:     1 added to queue eddc915c "xprt_pending"
[    7.711523] RPC:     1 setting alarm for 60000 ms
[    7.711527] RPC:       xs_connect scheduled xprt eddc9000
[    7.711534] RPC:     1 sync task going to sleep
[    7.711557] RPC:       xs_bind 0.0.0.0:872: ok (0)
[    7.711560] RPC:       worker connecting xprt eddc9000 via tcp to 192.168.0.1 (port 41203)
[    7.711604] RPC:       eddc9000 connect status 115 connected 0 sock state 2
[    7.711607] RPC:       wake_up_first(eddc9100 "xprt_sending")
[    7.711733] RPC:       xs_tcp_state_change client eddc9000...
[    7.711737] RPC:       state 1 conn 0 dead 0 zapped 1 sk_shutdown 0
[    7.711740] RPC:     1 __rpc_wake_up_task (now 4294938067)
[    7.711741] RPC:     1 disabling timer
[    7.711744] RPC:     1 removed from queue eddc915c "xprt_pending"
[    7.711750] RPC:       __rpc_wake_up_task done
[    7.711790] RPC:     1 sync task resuming
[    7.711793] RPC:     1 xprt_connect_status: retrying
[    7.711796] RPC:     1 call_connect_status (status -11)
[    7.711797] RPC:     1 call_timeout (minor)
[    7.711799] RPC:     1 call_bind (status 0)
[    7.711802] RPC:     1 call_connect xprt eddc9000 is connected
[    7.711803] RPC:     1 call_transmit (status 0)
[    7.711805] RPC:     1 xprt_prepare_transmit
[    7.711808] RPC:     1 rpc_xdr_encode (status 0)

[GS] =OR= In good case "RPC:     2 freeing task" can be seen here

[    7.711809] RPC:     1 marshaling NULL cred c096c2f0
[    7.711812] RPC:     1 using AUTH_NULL cred c096c2f0 to wrap rpc data
[    7.711814] RPC:     1 xprt_transmit(44)
[    7.711839] RPC:       xs_tcp_send_request(44) = 0
[    7.711841] RPC:     1 xmit complete
[    7.711844] RPC:     1 sleep_on(queue "xprt_pending" time 4294938067)
[    7.711846] RPC:     1 added to queue eddc915c "xprt_pending"
[    7.711848] RPC:     1 setting alarm for 60000 ms
[    7.711852] RPC:       wake_up_first(eddc9100 "xprt_sending")
[    7.711855] RPC:     1 sync task going to sleep
[    7.712063] RPC:       xs_tcp_data_ready...
[    7.712091] RPC:       xs_tcp_data_recv started
[    7.712094] RPC:       reading TCP record fragment of length 24
[    7.712096] RPC:       reading XID (4 bytes)
[    7.712098] RPC:       reading request with XID 57c6e885
[    7.712101] RPC:       reading CALL/REPLY flag (4 bytes)
[    7.712102] RPC:       read reply XID 57c6e885
[    7.712105] RPC:       XID 57c6e885 read 16 bytes
[    7.712107] RPC:       xprt = eddc9000, tcp_copied = 24, tcp_offset = 24, tcp_reclen = 24
[    7.712110] RPC:     1 xid 57c6e885 complete (24 bytes received)
[    7.712113] RPC:     1 __rpc_wake_up_task (now 4294938067)
[    7.712114] RPC:     1 disabling timer
[    7.712117] RPC:     1 removed from queue eddc915c "xprt_pending"
[    7.712123] RPC:       __rpc_wake_up_task done
[    7.712129] RPC:     1 sync task resuming
[    7.712131] RPC:     1 call_status (status 24)
[    7.712134] RPC:     1 call_decode (status 24)
[    7.712136] RPC:     1 validating NULL cred c096c2f0
[    7.712140] RPC:     1 using AUTH_NULL cred c096c2f0 to unwrap rpc data
[    7.712141] RPC:     1 call_decode result 0
[    7.712144] RPC:     1 return 0, status 0
[    7.712145] RPC:     1 release task
[    7.712150] RPC:       freeing buffer of size 92 at eddc9800
[    7.712153] RPC:     1 release request ee8eac00
[    7.712154] RPC:       wake_up_first(eddc91b8 "xprt_backlog")
[    7.712157] RPC:       rpc_release_client(ee8ead00)
[    7.712160] RPC:     1 freeing task
[    7.712164] RPC:       new task initialized, procpid 1
[    7.712166] RPC:       allocated task ee257300
[    7.712169] RPC:     3 __rpc_execute flags=0x1280
[    7.712171] RPC:     3 call_start mount3 proc MOUNT (sync)
[    7.712173] RPC:     3 call_reserve (status 0)
[    7.712176] RPC:     3 reserved req ee8eac00 xid 58c6e885
[    7.712179] RPC:       wake_up_first(eddc9100 "xprt_sending")
[    7.712182] RPC:     3 call_reserveresult (status 0)
[    7.712184] RPC:     3 call_refresh (status 0)
[    7.712186] RPC:     3 looking up UNIX cred
[    7.712188] RPC:       looking up UNIX cred
[    7.712191] RPC:     3 refreshing UNIX cred edd8cf00
[    7.712193] RPC:     3 call_refreshresult (status 0)
[    7.712195] RPC:     3 call_allocate (status 0)
[    7.712198] RPC:     3 allocated buffer of size 1604 at eeb5f000
[    7.712200] RPC:     3 call_bind (status 0)
[    7.712202] RPC:     3 call_connect xprt eddc9000 is connected
[    7.712204] RPC:     3 call_transmit (status 0)
[    7.712205] RPC:     3 xprt_prepare_transmit
[    7.712208] RPC:     3 rpc_xdr_encode (status 0)
[    7.712209] RPC:     3 marshaling UNIX cred edd8cf00
[    7.712212] RPC:     3 using AUTH_UNIX cred edd8cf00 to wrap rpc data
[    7.712215] RPC:     3 xprt_transmit(168)
[    7.712222] RPC:       xs_tcp_data_recv done
[    7.712257] RPC:       xs_tcp_send_request(168) = 0
[    7.712259] RPC:     3 xmit complete
[    7.712262] RPC:     3 sleep_on(queue "xprt_pending" time 4294938067)
[    7.712264] RPC:     3 added to queue eddc915c "xprt_pending"
[    7.712266] RPC:     3 setting alarm for 60000 ms
[    7.712269] RPC:       wake_up_first(eddc9100 "xprt_sending")
[    7.712273] RPC:     3 sync task going to sleep
[    7.721103] RPC:       xs_tcp_data_ready...
[    7.721123] RPC:       xs_tcp_data_recv started
[    7.721126] RPC:       reading TCP record fragment of length 76
[    7.721127] RPC:       reading XID (4 bytes)
[    7.721129] RPC:       reading reply for XID 58c6e885
[    7.721131] RPC:       reading CALL/REPLY flag (4 bytes)
[    7.721133] RPC:       read reply XID 58c6e885
[    7.721136] RPC:       XID 58c6e885 read 68 bytes
[    7.721139] RPC:       xprt = eddc9000, tcp_copied = 76, tcp_offset = 76, tcp_reclen = 76
[    7.721141] RPC:     3 xid 58c6e885 complete (76 bytes received)
[    7.721144] RPC:     3 __rpc_wake_up_task (now 4294938068)
[    7.721145] RPC:     3 disabling timer
[    7.721147] RPC:     3 removed from queue eddc915c "xprt_pending"
[    7.721154] RPC:       __rpc_wake_up_task done
[    7.721159] RPC:     3 sync task resuming
[    7.721162] RPC:     3 call_status (status 76)
[    7.721164] RPC:     3 call_decode (status 76)
[    7.721166] RPC:     3 validating UNIX cred edd8cf00
[    7.721169] RPC:     3 using AUTH_UNIX cred edd8cf00 to unwrap rpc data
[    7.721171] NFS: received 1 auth flavors
[    7.721173] NFS:   auth flavor[0]: 1
[    7.721175] RPC:     3 call_decode result 0
[    7.721177] RPC:     3 return 0, status 0
[    7.721178] RPC:     3 release task
[    7.721182] RPC:       freeing buffer of size 1604 at eeb5f000
[    7.721186] RPC:     3 release request ee8eac00
[    7.721188] RPC:       wake_up_first(eddc91b8 "xprt_backlog")
[    7.721191] RPC:       rpc_release_client(ee8ead00)
[    7.721194] RPC:     3 freeing task
[    7.721197] RPC:       shutting down mount client for 192.168.0.1
[    7.721198] RPC:       rpc_release_client(ee8ead00)
[    7.721200] RPC:       destroying UNIX authenticator c096c324
[    7.721205] RPC:       destroying mount client for 192.168.0.1
[    7.721238] NFS: MNT request succeeded
[    7.721241] NFS: attempting to use auth flavor 1
[    7.721257] --> nfs_init_server()
[    7.721260] --> nfs_get_client(192.168.0.1,v3)
[    7.721264] RPC:       looking up machine cred for service *
[    7.721269] RPC:       allocated machine cred ee257300 for uid 0 gid 0
[    7.721279] RPC:       set up xprt to 192.168.0.1 (autobind) via tcp
[    7.721296] RPC:       created transport eeb5f800 with 65536 slots
[    7.721299] RPC:       creating nfs client for 192.168.0.1 (xprt eeb5f800)
[    7.721333] RPC:       creating UNIX authenticator for client ee24f600
[    7.721336] RPC:       new task initialized, procpid 1
[    7.721338] RPC:       allocated task ee257380
[    7.721341] RPC:     4 __rpc_execute flags=0x680
[    7.721344] RPC:     4 call_start nfs3 proc NULL (sync)
[    7.721347] RPC:     4 call_reserve (status 0)
[    7.721350] RPC:     4 reserved req ee24f500 xid 799833c3
[    7.721353] RPC:       wake_up_first(eeb5f900 "xprt_sending")
[    7.721356] RPC:     4 call_reserveresult (status 0)
[    7.721357] RPC:     4 call_refresh (status 0)
[    7.721360] RPC:     4 holding NULL cred c096c2f0
[    7.721362] RPC:     4 refreshing NULL cred c096c2f0
[    7.721364] RPC:     4 call_refreshresult (status 0)
[    7.721367] RPC:     4 call_allocate (status 0)
[    7.721369] RPC:     4 allocated buffer of size 92 at ee2ac800
[    7.721371] RPC:     4 call_bind (status 0)
[    7.721374] RPC:     4 rpcb_getport_async(192.168.0.1, 100003, 3, 6)
[    7.721376] RPC:     4 sleep_on(queue "xprt_binding" time 4294938068)
[    7.721378] RPC:     4 added to queue eeb5f8a4 "xprt_binding"
[    7.721380] RPC:     4 setting alarm for 60000 ms
[    7.721385] RPC:     4 rpcb_getport_async: trying rpcbind version 2
[    7.721393] RPC:       set up xprt to 192.168.0.1 (port 111) via tcp
[    7.721407] RPC:       created transport ee2ac000 with 65536 slots
[    7.721409] RPC:       creating rpcbind client for 192.168.0.1 (xprt ee2ac000)
[    7.721432] RPC:       creating UNIX authenticator for client ee24f900
[    7.721435] RPC:       new task initialized, procpid 1
[    7.721437] RPC:       allocated task ee257480
[    7.721440] RPC:       rpc_release_client(ee24f900)
[    7.721442] RPC:     4 sync task going to sleep
[    7.721450] RPC:       xs_tcp_data_recv done
[    7.721458] RPC:     5 __rpc_execute flags=0x681
[    7.721460] RPC:     5 call_start rpcbind2 proc GETPORT (async)
[    7.721462] RPC:     5 call_reserve (status 0)
[    7.721465] RPC:     5 reserved req ee24f800 xid 9916d160
[    7.721468] RPC:       wake_up_first(ee2ac100 "xprt_sending")
[    7.721471] RPC:     5 call_reserveresult (status 0)
[    7.721473] RPC:     5 call_refresh (status 0)
[    7.721474] RPC:     5 looking up UNIX cred
[    7.721476] RPC:       looking up UNIX cred
[    7.721478] RPC:       allocating UNIX cred for uid 0 gid 0
[    7.721480] RPC:     5 refreshing UNIX cred ee257500
[    7.721482] RPC:     5 call_refreshresult (status 0)
[    7.721485] RPC:     5 call_allocate (status 0)
[    7.721487] RPC:     5 allocated buffer of size 508 at ee2ad800
[    7.721489] RPC:     5 call_bind (status 0)
[    7.721491] RPC:     5 call_connect xprt ee2ac000 is not connected
[    7.721493] RPC:     5 xprt_connect xprt ee2ac000 is not connected
[    7.721497] RPC:     5 sleep_on(queue "xprt_pending" time 4294938068)
[    7.721498] RPC:     5 added to queue ee2ac15c "xprt_pending"
[    7.721500] RPC:     5 setting alarm for 60000 ms
[    7.721504] RPC:       xs_connect scheduled xprt ee2ac000
[    7.721514] RPC:       worker connecting xprt ee2ac000 via tcp to 192.168.0.1 (port 111)
[    7.721555] RPC:       ee2ac000 connect status 115 connected 0 sock state 2
[    7.721558] RPC:       wake_up_first(ee2ac100 "xprt_sending")
[    7.721687] RPC:       xs_tcp_state_change client ee2ac000...
[    7.721690] RPC:       state 1 conn 0 dead 0 zapped 1 sk_shutdown 0
[    7.721693] RPC:     5 __rpc_wake_up_task (now 4294938068)
[    7.721695] RPC:     5 disabling timer
[    7.721697] RPC:     5 removed from queue ee2ac15c "xprt_pending"
[    7.721703] RPC:       __rpc_wake_up_task done
[    7.721744] RPC:     5 __rpc_execute flags=0x681
[    7.721746] RPC:     5 xprt_connect_status: retrying
[    7.721748] RPC:     5 call_connect_status (status -11)
[    7.721750] RPC:     5 call_timeout (minor)
[    7.721752] RPC:     5 call_bind (status 0)
[    7.721755] RPC:     5 call_connect xprt ee2ac000 is connected
[    7.721756] RPC:     5 call_transmit (status 0)
[    7.721758] RPC:     5 xprt_prepare_transmit
[    7.721760] RPC:     5 rpc_xdr_encode (status 0)
[    7.721762] RPC:     5 marshaling UNIX cred ee257500
[    7.721765] RPC:     5 using AUTH_UNIX cred ee257500 to wrap rpc data
[    7.721768] RPC:     5 encoding PMAP_GETPORT call (100003, 3, 6, 0)
[    7.721769] RPC:     5 xprt_transmit(92)
[    7.721796] RPC:       xs_tcp_send_request(92) = 0
[    7.721798] RPC:     5 xmit complete
[    7.721800] RPC:     5 sleep_on(queue "xprt_pending" time 4294938068)
[    7.721803] RPC:     5 added to queue ee2ac15c "xprt_pending"
[    7.721805] RPC:     5 setting alarm for 60000 ms
[    7.721808] RPC:       wake_up_first(ee2ac100 "xprt_sending")
[    7.722037] RPC:       xs_tcp_data_ready...
[    7.722066] RPC:       xs_tcp_data_recv started
[    7.722069] RPC:       reading TCP record fragment of length 28
[    7.722071] RPC:       reading XID (4 bytes)
[    7.722073] RPC:       reading request with XID 9916d160
[    7.722075] RPC:       reading CALL/REPLY flag (4 bytes)
[    7.722076] RPC:       read reply XID 9916d160
[    7.722079] RPC:       XID 9916d160 read 20 bytes
[    7.722082] RPC:       xprt = ee2ac000, tcp_copied = 28, tcp_offset = 28, tcp_reclen = 28
[    7.722084] RPC:     5 xid 9916d160 complete (28 bytes received)
[    7.722087] RPC:     5 __rpc_wake_up_task (now 4294938068)
[    7.722088] RPC:     5 disabling timer
[    7.722091] RPC:     5 removed from queue ee2ac15c "xprt_pending"
[    7.722093] RPC:       __rpc_wake_up_task done
[    7.722095] RPC:       xs_tcp_data_recv done
[    7.722101] RPC:     5 __rpc_execute flags=0xe81
[    7.722103] RPC:     5 call_status (status 28)
[    7.722105] RPC:     5 call_decode (status 28)
[    7.722108] RPC:     5 validating UNIX cred ee257500
[    7.722110] RPC:     5 using AUTH_UNIX cred ee257500 to unwrap rpc data
[    7.722112] RPC:     5 PMAP_GETPORT result: 2049
[    7.722114] RPC:     5 call_decode result 0
[    7.722116] RPC:       setting port for xprt eeb5f800 to 2049
[    7.722120] RPC:     5 rpcb_getport_done(status 0, port 2049)
[    7.722122] RPC:     5 return 0, status 0
[    7.722123] RPC:     5 release task
[    7.722128] RPC:       freeing buffer of size 508 at ee2ad800
[    7.722131] RPC:     5 release request ee24f800
[    7.722132] RPC:       wake_up_first(ee2ac1b8 "xprt_backlog")
[    7.722135] RPC:       rpc_release_client(ee24f900)
[    7.722138] RPC:       destroying rpcbind client for 192.168.0.1
[    7.722165] RPC:       destroying transport ee2ac000
[    7.722185] RPC:       xs_destroy xprt ee2ac000
[    7.722188] RPC:       xs_close xprt ee2ac000
[    7.722212] RPC:       xs_tcp_state_change client ee2ac000...
[    7.722215] RPC:       state 4 conn 1 dead 0 zapped 1 sk_shutdown 3
[    7.722225] RPC:       disconnected transport ee2ac000
[    7.722232] RPC:     4 __rpc_wake_up_task (now 4294938068)
[    7.722234] RPC:     4 disabling timer
[    7.722236] RPC:     4 removed from queue eeb5f8a4 "xprt_binding"
[    7.722243] RPC:       __rpc_wake_up_task done
[    7.722249] RPC:     4 sync task resuming
[    7.722251] RPC:     4 call_bind_status (status 0)
[    7.722253] RPC:     4 call_connect xprt eeb5f800 is not connected
[    7.722255] RPC:     4 xprt_connect xprt eeb5f800 is not connected
[    7.722258] RPC:     4 sleep_on(queue "xprt_pending" time 4294938068)
[    7.722261] RPC:     4 added to queue eeb5f95c "xprt_pending"
[    7.722263] RPC:     4 setting alarm for 60000 ms
[    7.722266] RPC:       xs_connect scheduled xprt eeb5f800
[    7.722270] RPC:     4 sync task going to sleep
[    7.722276] RPC:     5 freeing task
[    7.722289] RPC:       xs_bind 0.0.0.0:936: ok (0)
[    7.722292] RPC:       worker connecting xprt eeb5f800 via tcp to 192.168.0.1 (port 2049)
[    7.722371] RPC:       eeb5f800 connect status 115 connected 0 sock state 2
[    7.722379] RPC:       wake_up_first(eeb5f900 "xprt_sending")
[    8.988298] omap_i2c 48070000.i2c: controller timed out
[    9.128222] RPC:       destroying transport eddc9000
[    9.133237] RPC:       xs_destroy xprt eddc9000
[    9.137782] RPC:       xs_close xprt eddc9000
[    9.142179] RPC:       xs_tcp_state_change client eddc9000...
[    9.147945] RPC:       state 4 conn 1 dead 0 zapped 1 sk_shutdown 3
[    9.148286] RPC:       unx_free_cred edd8cf00
[    9.158642] RPC:       xs_tcp_state_change client eddc9000...
[    9.164411] RPC:       state 5 conn 0 dead 0 zapped 1 sk_shutdown 3
[    9.170724] RPC:       xs_tcp_state_change client eddc9000...
[    9.176489] RPC:       state 7 conn 0 dead 0 zapped 1 sk_shutdown 3
[    9.182789] RPC:       disconnected transport eddc9000
[    9.187944] RPC:       xs_tcp_state_change client eddc9000...
[    9.193719] RPC:       state 7 conn 0 dead 0 zapped 1 sk_shutdown 3
[    9.200016] RPC:       disconnected transport eddc9000
[    9.205170] RPC:       xs_tcp_data_ready...
[    9.209402] RPC:       disconnected transport eddc9000
[    9.214586] RPC:     2 freeing task

[GS] This is failed sequence ^^^^^


[   62.749957] random: nonblocking pool is initialized
[   67.838287] RPC:     4 timeout
[   67.841361] RPC:     4 __rpc_wake_up_task (now 4294944080)
[   67.846868] RPC:     4 disabling timer
[   67.850647] RPC:     4 removed from queue eeb5f95c "xprt_pending"
[   67.856775] RPC:       __rpc_wake_up_task done
[   67.861262] RPC:     4 sync task resuming
[   67.865286] RPC:     4 xprt_connect_status: connect attempt timed out
[   67.871787] RPC:     4 call_connect_status (status -110)
[   67.877124] RPC:     4 call_timeout (minor)
[   67.881339] RPC:     4 call_bind (status 0)
[   67.885543] RPC:     4 call_connect xprt eeb5f800 is not connected
[   67.891766] RPC:     4 xprt_connect xprt eeb5f800 is not connected
[   67.897973] RPC:     4 sleep_on(queue "xprt_pending" time 4294944085)
[   67.904456] RPC:     4 added to queue eeb5f95c "xprt_pending"
[   67.910241] RPC:     4 setting alarm for 120000 ms
[   67.915055] RPC:     4 sync task going to sleep
[  135.038293] RPC:       xs_error_report client eeb5f800, error=110...
[  135.044676] RPC:     4 __rpc_wake_up_task (now 4294950800)
[  135.050188] RPC:     4 disabling timer
[  135.053957] RPC:     4 removed from queue eeb5f95c "xprt_pending"
[  135.060079] RPC:       __rpc_wake_up_task done
[  135.064542] RPC:       xs_tcp_state_change client eeb5f800...
[  135.070317] RPC:       state 7 conn 0 dead 0 zapped 1 sk_shutdown 3
[  135.076609] RPC:       disconnected transport eeb5f800
[  135.081790] RPC:     4 sync task resuming
[  135.085819] RPC:     4 xprt_connect_status: connect attempt timed out
[  135.092334] RPC:     4 call_connect_status (status -110)
[  135.097667] RPC:     4 call_timeout (minor)
[  135.101888] RPC:     4 call_bind (status 0)
[  135.106087] RPC:     4 call_connect xprt eeb5f800 is not connected
[  135.112305] RPC:     4 xprt_connect xprt eeb5f800 is not connected
[  135.118531] RPC:     4 sleep_on(queue "xprt_pending" time 4294950808)
[  135.125002] RPC:     4 added to queue eeb5f95c "xprt_pending"
[  135.130786] RPC:     4 setting alarm for 180000 ms
[  135.135604] RPC:       xs_connect delayed xprt eeb5f800 for 3 seconds
[  135.142083] RPC:       xs_tcp_state_change client eeb5f800...
[  135.147852] RPC:       state 7 conn 0 dead 0 zapped 1 sk_shutdown 3
[  135.154159] RPC:       disconnected transport eeb5f800
[  135.159328] RPC:     4 __rpc_wake_up_task (now 4294950812)
[  135.164833] RPC:     4 disabling timer
[  135.168614] RPC:     4 removed from queue eeb5f95c "xprt_pending"
[  135.174730] RPC:       __rpc_wake_up_task done
[  135.179231] RPC:     4 xprt_connect_status: retrying
[  135.184221] RPC:     4 call_connect_status (status -11)
[  135.189510] RPC:     4 call_timeout (minor)
[  135.193709] RPC:     4 call_bind (status 0)
[  135.197908] RPC:     4 call_connect xprt eeb5f800 is not connected
[  135.204158] RPC:     4 xprt_connect xprt eeb5f800 is not connected
[  135.210443] RPC:     4 failed to lock transport eeb5f800
[  135.215785] RPC:     4 sleep_on(queue "xprt_sending" time 4294950817)
[  135.222280] RPC:     4 added to queue eeb5f900 "xprt_sending"
[  135.228065] RPC:     4 sync task going to sleep
[  138.188320] RPC:       xs_bind 0.0.0.0:936: ok (0)
[  138.193139] RPC:       worker connecting xprt eeb5f800 via tcp to 192.168.0.1 (port 2049)
[  138.201418] RPC:       eeb5f800 connect status 115 connected 0 sock state 2
[  138.208433] RPC:       wake_up_first(eeb5f900 "xprt_sending")
[  138.214202] RPC:     4 __rpc_wake_up_task (now 4294951117)
[  138.219723] RPC:     4 removed from queue eeb5f900 "xprt_sending"
[  138.225851] RPC:       __rpc_wake_up_task done
[  138.230344] RPC:     4 sync task resuming
[  138.234369] RPC:     4 call_connect_status (status -11)
[  138.239664] RPC:     4 call_timeout (minor)
[  138.243870] RPC:     4 call_bind (status 0)
[  138.248070] RPC:     4 call_connect xprt eeb5f800 is not connected
[  138.254295] RPC:     4 xprt_connect xprt eeb5f800 is not connected
[  138.260520] RPC:     4 sleep_on(queue "xprt_pending" time 4294951122)
[  138.266987] RPC:     4 added to queue eeb5f95c "xprt_pending"
[  138.272772] RPC:     4 setting alarm for 180000 ms
[  138.277588] RPC:     4 sync task going to sleep

- 12:26:16 [INFO] Boot attempt 1/1 failed
- 12:26:16 [INFO] Collecting kernel traces via sysrq...
- 12:26:27 [INFO] [  208.203437] sysrq: SysRq : Show State
[  208.207123]   task                PC stack   pid father
[  208.212370] swapper/0       D c0660fe0     0     1      0 0x00000000
[  208.218765] Backtrace: 
[  208.221239] [<c0660cfc>] (__schedule) from [<c06613c0>] (schedule+0x54/0xc4)
[  208.228316]  r10:ee318e00 r9:fffffe00 r8:c063b54c r7:eeda1db4 r6:ee88da34 r5:00000082
[  208.236216]  r4:ee88c000
[  208.238772] [<c066136c>] (schedule) from [<c063b57c>] (rpc_wait_bit_killable+0x30/0xe4)
[  208.246808]  r5:00000082 r4:00000082
[  208.250416] [<c063b54c>] (rpc_wait_bit_killable) from [<c066195c>] (__wait_on_bit+0x8c/0xcc)
[  208.258886]  r5:00000082 r4:ee88da28
[  208.262492] [<c06618d0>] (__wait_on_bit) from [<c0661a10>] (out_of_line_wait_on_bit+0x74/0x7c)
[  208.271137]  r9:fffffe00 r8:00000000 r7:ee2573b8 r6:00000001 r5:ee890000 r4:00000000
[  208.278952] [<c066199c>] (out_of_line_wait_on_bit) from [<c063c4a0>] (__rpc_execute+0x20c/0x394)
[  208.287772]  r7:ee2573b8 r6:c096c8f4 r5:eeb5f95c r4:ee257380
[  208.293487] [<c063c294>] (__rpc_execute) from [<c063c950>] (rpc_execute+0x6c/0x70)
[  208.301085]  r9:c067b694 r8:ee2a0910 r7:c0965a40 r6:c0965a40 r5:00000000 r4:ee257380
[  208.308902] [<c063c8e4>] (rpc_execute) from [<c0634bb0>] (rpc_run_task+0xac/0xb4)
[  208.316413]  r5:ee88dad4 r4:ee257380
[  208.320017] [<c0634b04>] (rpc_run_task) from [<c0634c00>] (rpc_call_sync+0x48/0xc4)
[  208.327702]  r5:ee88dbc4 r4:ee24f600
[  208.331307] [<c0634bb8>] (rpc_call_sync) from [<c0634cd8>] (rpc_ping+0x5c/0x78)
[  208.338644]  r4:ee24f600
[  208.341194] [<c0634c7c>] (rpc_ping) from [<c0634dac>] (rpc_create_xprt+0xb8/0xd0)
[  208.348705]  r4:ee24f600
[  208.351254] [<c0634cf4>] (rpc_create_xprt) from [<c0634e78>] (rpc_create+0xb4/0x1c4)
[  208.359028]  r7:c0965a40 r6:c0965a40 r5:00000000 r4:ee88dbc4
[  208.364743] [<c0634dc4>] (rpc_create) from [<c01e1abc>] (nfs_create_rpc_client+0xdc/0x12c)
[  208.373039]  r6:ee88dc94 r5:00000001 r4:ee318e00
[  208.377698] [<c01e19e0>] (nfs_create_rpc_client) from [<c01e2778>] (nfs_init_client+0x3c/0xd8)
[  208.386343]  r6:eeafefec r5:ee88dca8 r4:ee318e00
[  208.391002] [<c01e273c>] (nfs_init_client) from [<c01e1840>] (nfs_get_client+0x254/0x3c4)
[  208.399209]  r5:ee88dca8 r4:eeafef18
[  208.402813] [<c01e15ec>] (nfs_get_client) from [<c01e2994>] (nfs_create_server+0xbc/0x4cc)
[  208.411109]  r10:c09313d4 r9:ee88ddc4 r8:ee24dcc0 r7:ee88dca8 r6:c096c8f0 r5:eeb5f000
[  208.419006]  r4:ee2a0800
[  208.421559] [<c01e28d8>] (nfs_create_server) from [<c01fa574>] (nfs3_create_server+0x10/0x28)
[  208.430117]  r10:00000001 r9:edd8ca80 r8:c09313d4 r7:c096c8f0 r6:ee88ddc4 r5:00000000
[  208.438016]  r4:ee2a0800
[  208.440568] [<c01fa564>] (nfs3_create_server) from [<c01ee8a8>] (nfs_try_mount+0xe4/0x340)
[  208.448865]  r5:00000000 r4:ee2a0800
[  208.452474] [<c01ee7c4>] (nfs_try_mount) from [<c01ee14c>] (nfs_fs_mount+0x624/0xb78)
[  208.460333]  r10:00000400 r9:00008000 r8:edd8ca8c r7:edd8ca80 r6:c096c8f0 r5:c01ee7c4
[  208.468232]  r4:c09313d4
[  208.470787] [<c01edb28>] (nfs_fs_mount) from [<c0120a90>] (mount_fs+0x1c/0xac)
[  208.478037]  r10:c0930e40 r9:c0928c94 r8:c0930e40 r7:c0930e40 r6:00008000 r5:edd8ca80
[  208.485936]  r4:c01edb28
[  208.488490] [<c0120a74>] (mount_fs) from [<c0139acc>] (vfs_kern_mount+0x50/0xf8)
[  208.495914]  r8:edd8e000 r7:c0930e40 r6:00008000 r5:edd8ca80 r4:edd71900
[  208.502681] [<c0139a7c>] (vfs_kern_mount) from [<c013cbb4>] (do_mount+0x1a8/0xc20)
[  208.510278]  r9:c0928c94 r8:edd68c40 r7:edd8ca80 r6:00008000 r5:00000020 r4:edd8e000
[  208.518094] [<c013ca0c>] (do_mount) from [<c013d9a0>] (SyS_mount+0x7c/0xa8)
[  208.525081]  r10:c090283c r9:c08c25ec r8:00008000 r7:c07eff78 r6:00000000 r5:edd8ca80
[  208.532979]  r4:edd68c40
[  208.535532] [<c013d924>] (SyS_mount) from [<c08c3494>] (mount_root+0x70/0x12c)
[  208.542781]  r8:c091071c r7:00000006 r6:00000005 r5:c091b888 r4:c0972024
[  208.549549] [<c08c3424>] (mount_root) from [<c08c36b0>] (prepare_namespace+0x160/0x1a4)
[  208.557584]  r7:c0972000 r6:c0972000 r5:c0902871 r4:c0972024
[  208.563297] [<c08c3550>] (prepare_namespace) from [<c08c2fdc>] (kernel_init_freeable+0x274/0x284)
[  208.572203]  r5:c0902838 r4:00000008
[  208.575811] [<c08c2d68>] (kernel_init_freeable) from [<c0660444>] (kernel_init+0x18/0xf0)
[  208.584019]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c066042c
[  208.591918]  r4:c0972000
[  208.594472] [<c066042c>] (kernel_init) from [<c000fa88>] (ret_from_fork+0x14/0x2c)
[  208.602070]  r5:c066042c r4:00000000

-- 
regards,
-grygorii

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2016-08-19 11:14 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-08-03 11:41 Kernel NFS boot failure Grygorii Strashko
2016-08-03 12:06 ` Vladimir Murzin
2016-08-03 15:04   ` Grygorii Strashko
2016-08-11 16:25     ` Grygorii Strashko
2016-08-19 11:14       ` Grygorii Strashko

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