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Message #43617
[Bug 1274479] Re: Call Traces found while executing fsracer tests
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Andy Whitcroft (apw)
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https://bugs.launchpad.net/bugs/1274479
Title:
Call Traces found while executing fsracer tests
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Host machine : 9.3.189.114(roo/.pasroot)
run "virsh console harini" to get the console access
Description:
-----------------
fs racer test from ltp test suite was being run on ubuntu alpha 1
guest. After couple of hours of testing got some errors on the
command prompt along with call trace in dmesg.
Location for fsracer test : /root/ltp-
full-20140115/testcases/kernel/fs/racer/
Ran :
nohup /root/ltp-full-20140115/testcases/kernel/fs/racer/fs_racer.sh
-t 10000000 &
=========================================================================================
On command prompt:
---------------------------------
root@ubuntu:~# [88680.412397] INFO: task ln:16792 blocked for more than 120 seconds.
[88680.412527] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.412595] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.412992] INFO: task mkdir:16801 blocked for more than 120 seconds.
[88680.413079] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.413145] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.413290] INFO: task dd:17882 blocked for more than 120 seconds.
[88680.413401] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.413468] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.413625] INFO: task fs_racer_file_c:29630 blocked for more than 120 seconds.
[88680.413726] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.413793] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.414025] INFO: task fs_racer_file_c:29631 blocked for more than 120 seconds.
[88680.414127] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.414196] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.414341] INFO: task ln:29635 blocked for more than 120 seconds.
[88680.414425] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.414491] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.414632] INFO: task ln:29637 blocked for more than 120 seconds.
[88680.414715] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.414782] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.415139] INFO: task fs_racer_file_c:29641 blocked for more than 120 seconds.
[88680.415243] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.415311] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.415456] INFO: task mkdir:29646 blocked for more than 120 seconds.
[88680.415539] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.415605] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.415748] INFO: task mkdir:29647 blocked for more than 120 seconds.
[88680.415835] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.415983] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
==============================================================================
Call trace:
-------------
[88680.412397] INFO: task ln:16792 blocked for more than 120 seconds.
[88680.412527] Not tainted 3.13.0-5-generic #20-Ubuntu
[88680.412595] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[88680.412696] ln D 00003fff9b89ea68 0 16792 25258 0x00040000
[88680.412703] Call Trace:
[88680.412732] [c000000c76ad74b0] [c000000c765eeae0] 0xc000000c765eeae0 (unreliable)
[88680.412852] [c000000c76ad7680] [c0000000000154c0] .__switch_to+0x1d0/0x340
[88680.412917] [c000000c76ad7730] [c000000000abd968] .__schedule+0x368/0x8c0
[88680.412922] [c000000c76ad79b0] [c000000000abe498] .schedule_preempt_disabled+0x18/0x30
[88680.412926] [c000000c76ad7a20] [c000000000ac078c] .__mutex_lock_slowpath+0x18c/0x2c0
[88680.412930] [c000000c76ad7af0] [c000000000ac0924] .mutex_lock+0x64/0x68
[88680.412975] [c000000c76ad7b70] [c0000000002303e0] .kern_path_create+0xb0/0x1e0
[88680.412979] [c000000c76ad7cd0] [c000000000232a48] .user_path_create+0x68/0xa0
[88680.412983] [c000000c76ad7d60] [c000000000233c88] .SyS_symlinkat+0x78/0x140
[88680.412989] [c000000c76ad7e30] [c000000000009e58] syscall_exit+0x0/0x98
===================================================================================
File system status at that moment
--------------------------------------
root@ubuntu:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda 50G 18G 29G 39% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
devtmpfs 25G 8.0K 25G 1% /dev
none 5.0G 216K 5.0G 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 25G 0 25G 0% /run/shm
none 100M 0 100M 0% /run/user
root@ubuntu:~#
root@ubuntu:~# uname -a
Linux ubuntu 3.13.0-5-generic #20-Ubuntu SMP Mon Jan 20 20:03:57 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
root@ubuntu:~#
---
ApportVersion: 2.13.2-0ubuntu2
Architecture: ppc64el
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 14.04
IwConfig:
lo no wireless extensions.
tunl0 no wireless extensions.
eth0 no wireless extensions.
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Package: linux (not installed)
ProcEnviron:
TERM=vt102
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: root=/dev/sda
ProcModules:
dm_crypt 29694 0 - Live 0xd000000006b36000
pseries_rng 3309 0 - Live 0xd000000006a7f000
rtc_generic 2711 0 - Live 0xd000000006a33000
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-5-generic N/A
linux-backports-modules-3.13.0-5-generic N/A
linux-firmware 1.122
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty uec-images
Uname: Linux 3.13.0-5-generic ppc64le
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
---
ApportVersion: 2.13.2-0ubuntu2
Architecture: ppc64el
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
DistroRelease: Ubuntu 14.04
IwConfig:
lo no wireless extensions.
tunl0 no wireless extensions.
eth0 no wireless extensions.
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Package: linux (not installed)
ProcEnviron:
TERM=vt102
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: root=/dev/sda
ProcModules:
dm_crypt 29694 0 - Live 0xd000000006b36000
pseries_rng 3309 0 - Live 0xd000000006a7f000
rtc_generic 2711 0 - Live 0xd000000006a33000
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
RelatedPackageVersions:
linux-restricted-modules-3.13.0-5-generic N/A
linux-backports-modules-3.13.0-5-generic N/A
linux-firmware 1.122
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty uec-images
Uname: Linux 3.13.0-5-generic ppc64le
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
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