Re: seawasp failing, maybe in glibc allocator

From: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>
To: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: seawasp failing, maybe in glibc allocator
Date: 2021-05-18 17:02:20
Message-ID: alpine.DEB.2.22.394.2105181858580.371742@pseudo
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>> The issue is non-deterministically triggered in contrib checks, either in
>> int or ltree, but not elsewhere. This suggests issues specific to these
>> modules, or triggered by these modules. Hmmm…
>
> Hmm, yeah. A couple of different ways that ltreetest fails without crashing:
>
> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=seawasp&dt=2021-05-13%2001%3A17%3A15
> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=seawasp&dt=2021-05-12%2017%3A17%3A15
>
> Otherwise it's mostly free() blowing up, and one case of an assertion
> failure in llvm::StringMapImpl::RemoveKey, I guess before free() is
> reached:
>
> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=seawasp&dt=2021-05-14%2009%3A17%3A15

It seems that the upload of the valgrind run (many hours…) failed on "413
request entity too large", and everything seems to have been cleaned
despite the "--keepall" I think I put when I started the run.

Not sure about the best way to proceed.

--
Fabien.

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