strace--relative-timestamps-*.test fails on s390

Eugene Syromyatnikov evgsyr at
Wed Apr 7 15:00:22 UTC 2021

On Wed, Apr 7, 2021 at 4:45 PM Alexander Gordeev <agordeev at> wrote:
> Would it be possible to increase the timeout for s390 (and possibly -
> for other virtualized environments)?

Well, that would compromise the purpose of the test (further)—to check
whether the strace measures time accurately.  A possible fix is to
communicate the time passed from the test program's PoV and compare it
with the strace's notion. However, it would be nice if rather s390's
timers/scheduling be fixed/improved, half a second delay on process
wakeup is quite offending (I think the only other type of systems that
have the time-sensitive tests failing are underpowered arm systems,
most of the other environment strace is tested on, including
virtualised ones, usually can handle the process wakeup within 0.2

> Thanks!
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> Strace-devel at

Eugene Syromyatnikov
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