I've pushed a fix that I believe addresses the segfault:
https://kernel.ubuntu.com/git/cking/stress-
ng.git/commit/?id=a6a41968fcf598ffacb86ee85cf5d632f0bd8d83
I was able to reproduce the error and it was clear that the alternative
signal stack was not expanded because lack of free pages causing the
segfault handler itself to segfault. Ugh.
** Changed in: stress-ng (Ubuntu)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1841916
Title:
stress-stack stressor terminates with segfault
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