enosys test in ubuntu_stress_smoke will failed on Artful

[Po-Hsu Lin]

The ubuntu_stress_smoke test will fail with enosys on node "gonzo" with Artful kernel (only on this node)

This can be reproduced in 4.13.0-32 and 4.13.0-36

enosys STARTING
enosys RETURNED 2
enosys FAILED
stress-ng: debug: [22679] 6 processors online, 6 processors configured
stress-ng: info: [22679] dispatching hogs: 4 enosys
stress-ng: debug: [22679] cache allocate: default cache size: 8192K
stress-ng: debug: [22679] starting stressors
stress-ng: debug: [22680] stress-ng-enosys: started [22680] (instance 0)
stress-ng: debug: [22681] stress-ng-enosys: started [22681] (instance 1)
stress-ng: debug: [22679] 4 stressors spawned
stress-ng: debug: [22682] stress-ng-enosys: started [22682] (instance 2)
stress-ng: debug: [22683] stress-ng-enosys: started [22683] (instance 3)
stress-ng: debug: [22682] stress-ng-enosys: exited [22682] (instance 2)
stress-ng: debug: [22680] stress-ng-enosys: exited [22680] (instance 0)
stress-ng: debug: [22679] process [22680] terminated
stress-ng: debug: [22679] process [22681] (stress-ng-enosys) terminated on signal: 9 (Killed)
stress-ng: debug: [22679] process [22681] terminated
stress-ng: debug: [22679] process [22682] terminated
stress-ng: debug: [22679] process [22683] (stress-ng-enosys) terminated on signal: 9 (Killed)
stress-ng: debug: [22679] process [22683] terminated
stress-ng: info: [22679] unsuccessful run completed in 7.40s

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-32-generic 4.13.0-32.35
ProcVersionSignature: User Name 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Feb 21 10:59 seq
 crw-rw---- 1 root audio 116, 33 Feb 21 10:59 timer
AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.13.0-32-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Wed Feb 21 11:03:28 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
MachineType: Dell Inc. PowerEdge R415
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-32-generic root=UUID=3e0e190e-d425-4d00-a9a9-deb0c452399b ro
RelatedPackageVersions:
 linux-restricted-modules-4.13.0-32-generic N/A
 linux-backports-modules-4.13.0-32-generic N/A
 linux-firmware 1.169.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/26/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.9.3
dmi.board.name: 08WNM9
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.9.3:bd04/26/2012:svnDellInc.:pnPowerEdgeR415:pvr:rvnDellInc.:rn08WNM9:rvrA02:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R415
dmi.sys.vendor: Dell Inc.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Colin Ian King (colin-king)]

Looks like the enosys stressor was being prematurely killed by the OOM killer, I'll add some extra wrapping to detect this and try to re-start the stressor when it gets OOM'd. This does not appear to be a kernel bug per se.

[Colin Ian King (colin-king)]

Fix committed: http://kernel.ubuntu.com/git/cking/stress-ng.git/commit/?id=696311ca2f4fe42863807e73bec1212b0799dce8

[Colin Ian King (colin-king)]

Do you mind re-running the test to see if my fix addressed the issue?

[Po-Hsu Lin (cypressyew)]

The very same node has passed the enosys test with Artful kernel.
Thanks!

[Colin Ian King (colin-king)]

Fix will land in the stress-ng 0.09.17 release in the next 24 hours

[Launchpad Janitor (janitor)]

This bug was fixed in the package stress-ng - 0.09.17-1

---------------
stress-ng (0.09.17-1) unstable; urgency=medium

  * Makefile: bump version
  * Manual: update date
  * stress-rawdev: make some functions static
  * stress-funcall: fix -Wmissing-declarations warning message
  * stress-file-ioctl: remove extraneous shadowed variable 'ret'
  * stress-madvise: make ret non-clobberable for gcc 4.2.1
  * Add minimum GCC version for Pragma push/pop
  * shim: older gcc required pragmas outside of functions
  * stress-enosys: older gcc required pragmas outside of functions
  * Check for clang version when using pragmas
  * stress-file-ioctl: remove debug printf
  * Add new file-ioctl stressor
  * shim: disable warnings for brk and sbrk for OS X
  * Swap ordering on compiler detection on pragmas
  * stress-enosys: turn off warning on syscall, cleans up OS X warning
  * Add no warning pragma macros
  * Makefile: force sync after build in case reboot loses executable
  * stress-enosys: add syscall7 shim
  * stress-dirdeep: only print info message on instance #0
  * stress-enosys: wrap with OOM catcher (LP: #1750787)
  * stress-dev: add bug reference to hpet failure
  * stress-enosys: exercise more arguments in syscall
  * Manual: udp-lite should be for ipv6 as well as ipv4
  * Manual: update arch specific limitations on lockbus and memthrash
    stressors
  * Return EXIT_NOT_IMPLEMENTED when system call returns ENOSYS
  * stress-userfaultfd: don't fail with an error if ENOSYS is returned
  * stress-membarrier: don't fail with an error if ENOSYS is returned
  * stress-getrandom: don't fail with an error if ENOSYS is returned
  * helper: make zero more obscure so that optimizer won't optimize
    zero out
  * stress-filename: remove shadowed redundant variable ret
  * Makefile: build perf-event with $(CC) rather gcc
  * stress-wcstr: fix warning on systems without wcs functions
  * job: make fp non-clobberable, cleans up build warning on gcc 4.8.4
  * stress-softlock: clean up clobbering warning on gcc 4.9.2
  * mwc: add more information into the reseed mix
  * stress-filename: don't closedir on a NULL dir pointer
  * Move LIB_DL headers to stress-ng.h
  * stress-dynlib: try to read the function memory to force page fault
  * Manual: fix enosys-ops entry, missing e from enosys-ops
  * Add new dynlib shared library dynamic loading stressor
  * stress-tree: make nodes align naturally with padding
  * stress-tree: move data to start of struct, ensures natural alignment
  * stress-tree: clean splay nodes at removal time
  * stress-tree: ensure splay tree data is cleared
  * stress-exec: drop all capabilities before exec'ing
  * stack-mmap: add MAP_STACK flag

 -- Colin King <email address hidden> Thu, 22 Feb 2018 14:04:11 +0000