Public bug reported:
ubuntu@pepe:~$ uname -a
Linux pepe 4.15.0-34-lowlatency #37~16.04.1-Ubuntu SMP PREEMPT Tue Aug 28
11:33:58 UTC 2018 i686 i686 i686 GNU/Linux
The sysfs test in ubuntu_stress_smoke_test will hang on this node.
Sep 7 06:50:01 pepe stress-ng: invoked with './stress-n' by user 0
Sep 7 06:50:01 pepe stress-ng: system: 'pepe' Linux 4.15.0-34-lowlatency
#37~16.04.1-Ubuntu SMP PREEMPT Tue Aug 28 11:33:58 UTC 2018 i686
Sep 7 06:50:01 pepe stress-ng: memory (MB): total 3989.54, free 3595.64,
shared 14.70, buffer 92.63, swap 1023.99, free swap 940.58
Sep 7 06:50:01 pepe stress-ng: info: [27744] dispatching hogs: 4 sysinfo
Sep 7 06:50:06 pepe stress-ng: info: [27744] successful run completed in 5.01s
Sep 7 06:50:06 pepe stress-ng: invoked with './stress-n' by user 0
Sep 7 06:50:06 pepe stress-ng: system: 'pepe' Linux 4.15.0-34-lowlatency
#37~16.04.1-Ubuntu SMP PREEMPT Tue Aug 28 11:33:58 UTC 2018 i686
Sep 7 06:50:06 pepe stress-ng: memory (MB): total 3989.54, free 3594.25,
shared 14.70, buffer 92.64, swap 1023.99, free swap 940.58
Sep 7 06:50:06 pepe stress-ng: info: [27763] dispatching hogs: 4 sysfs
Sep 7 06:50:09 pepe kernel: [ 1014.787741] WARNING! power/level is deprecated;
use power/control instead
There are many repetitive message in dmesg right after triggering the test with:
$ ./stress-ng -t 5 --sysfs 4 --ignite-cpu --syslog --verbose --verify --oomable
[ 1655.642421] mpt2sas_cm0: _ctl_BRM_status_show: BRM attribute is only for
warpdrive
[ 1655.642429] mpt2sas_cm0: _ctl_BRM_status_show: BRM attribute is only for
warpdrive
[ 1655.642440] mpt2sas_cm0: _ctl_BRM_status_show: BRM attribute is only for
warpdrive
[ 1655.642454] mpt2sas_cm0: _ctl_BRM_status_show: BRM attribute is only for
warpdrive
[ 1655.642463] mpt2sas_cm0: _ctl_BRM_status_show: BRM attribute is only for
warpdrive
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: stress-ng (not installed)
ProcVersionSignature: User Name 4.15.0-34.37~16.04.1-lowlatency 4.15.18
Uname: Linux 4.15.0-34-lowlatency i686
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: i386
Date: Fri Sep 7 06:57:16 2018
SourcePackage: stress-ng
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
** Affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
** Affects: stress-ng (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 uec-images xenial
** Also affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
** Also affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1791246
Title:
sysfs test in ubuntu_stress_smoke_test will hang on a X-HWE lowlatency
node
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