Re: build-oss-fuzz CI job often times out

[Alexander Bulekov]

On 220131 0806, Thomas Huth wrote:
> > On 29/1/22 14:34, Peter Maydell wrote:
> > > Hi; the build-oss-fuzz gitlab CI job seems to intermittently
> > > but quite commonly hit the 1 hour timeout mark and get killed.
> > > Examples from the last couple of days:
> > > 
> > > https://gitlab.com/qemu-project/qemu/-/jobs/2030815488
> > > https://gitlab.com/qemu-project/qemu/-/jobs/2029246068
> > > https://gitlab.com/qemu-project/qemu/-/jobs/2029013479
> > > https://gitlab.com/qemu-project/qemu/-/jobs/2024871970
> > > https://gitlab.com/qemu-project/qemu/-/jobs/2022584981
> > > 
> > > Can we do anything to cut down on the runtime of this job
> > > and make it reliably complete inside the time limit?
> 
> All the jobs that you've listed hang in the very same test
> (qtest-i386/boot-serial-test), so I assume it's rather a test that now hangs
> occasionally, and not a generic slowness (otherwise the jobs would fail
> sometimes earlier, sometimes later).
> 

Judging by this job, from one of those pipelines, the big qos-test is
next up after boot-serial-test (the last test that finishes
successfully):
https://gitlab.com/qemu-project/qemu/-/jobs/2024872156#L57

So something is likely timing out there, when built with ASAN..
-Alex


> Thus we likely have a regression in the code that only shows up occasionally
> in these builds... Can you mark a point in time when these issues first
> happened?
> 
>  Thomas
>