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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andrey Borodin <x4mmm@yandex-team.ru>
cc: Noah Misch <noah@leadboat.com>,
        PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>,
        Michael Paquier <michael@paquier.xyz>, Peter Geoghegan <pg@bowt.ie>,
        Andres Freund <andres@anarazel.de>
Subject: Re: conchuela timeouts since 2021-10-09 system upgrade
In-reply-to: <640FA6DC-A998-4499-B3B4-2773685B8C56@yandex-team.ru>
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Comments: In-reply-to Andrey Borodin <x4mmm@yandex-team.ru>
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Andrey Borodin <x4mmm@yandex-team.ru> writes:
>> 24 =D0=BE=D0=BA=D1=82. 2021 =D0=B3., =D0=B2 19:19, Noah Misch <noah@lea=
dboat.com> =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB(=D0=B0):
>> These failures started on 2021-10-09, the day conchuela updated from Dr=
agonFly
>> v4.4.3-RELEASE to DragonFly v6.0.0-RELEASE.  It smells like a kernel bu=
g.

prairiedog just reported the identical symptom:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=3Dprairiedog&dt=3D=
2021-10-24%2016%3A05%3A58

I'm thinking "timing problem" more than "kernel bug".  (I'd have also
believed "ancient IPC::Run bug", except that I assume conchuela is
running a pretty modern IPC::Run.)

I can poke into it tomorrow.

			regards, tom lane