This was introduced with upstream stress-ng commit:
commit f954db3afe8ae2dc9474908250d3a2c595200a94
Author: Colin Ian King <[email protected]>
Date: Wed Jun 7 20:01:16 2017 +0100
stress-vforkmany: remove as many calls as possible
We should remove as many function calls so we don't clobber the stack.
Signed-off-by: Colin Ian King <[email protected]>
..the code added a wrapper process to ensure that kill'd vfork children
were respawned, however, the non-OOM-able setting on the vfork processes
were causing the OOM killer to reap everything except the vfork
children.
I've fixed this with upstream fix:
http://kernel.ubuntu.com/git/cking/stress-
ng.git/commit/?id=5f3c93335def9985d479e891f3eb5939c1dd3797
This now makes vfork processes OOM-able by default.
** Package changed: linux (Ubuntu) => stress-ng (Ubuntu)
** Changed in: stress-ng (Ubuntu)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1698747
Title:
"vforkmany" test in the smoke test test suite will stuck on Xenial
i386
Status in stress-ng package in Ubuntu:
Fix Committed
Bug description:
I tried it twice on our node "gonzo" for regression-testing, but it
always stuck on the same task (over 1 day)
ERROR - 06:10:35 DEBUG| [stdout] urandom RETURNED 0
ERROR - 06:10:35 DEBUG| [stdout] urandom PASSED
ERROR - 06:10:35 DEBUG| [stdout] userfaultfd STARTING
ERROR - 06:10:45 DEBUG| [stdout] userfaultfd RETURNED 0
ERROR - 06:10:45 DEBUG| [stdout] userfaultfd PASSED
ERROR - 06:10:45 DEBUG| [stdout] utime STARTING
ERROR - 06:10:55 DEBUG| [stdout] utime RETURNED 0
ERROR - 06:10:55 DEBUG| [stdout] utime PASSED
ERROR - 06:10:55 DEBUG| [stdout] vfork STARTING
ERROR - 06:11:05 DEBUG| [stdout] vfork RETURNED 0
ERROR - 06:11:05 DEBUG| [stdout] vfork PASSED
ERROR - 06:11:05 DEBUG| [stdout] vforkmany STARTING
ERROR - Killed
ERROR -
ERROR - Due to the above error(s), this script is unable to continue and is
terminating.
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