Re: Using Valgrind to detect faulty buffer accesses (no pin or buffer content lock held)

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, Daniel Gustafsson <daniel(at)yesql(dot)se>, Andres Freund <andres(at)anarazel(dot)de>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Using Valgrind to detect faulty buffer accesses (no pin or buffer content lock held)
Date: 2020-07-19 02:45:42
Message-ID: CAH2-WzmF0ECfd04uy6ONBBE6RYfTXB3=wxzO36C4rKrWygvKsQ@mail.gmail.com
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On Sat, Jul 18, 2020 at 7:36 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> I wonder whether skink's failure today is due to this change:
>
> https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=skink&dt=2020-07-18%2018%3A01%3A10

That seems extremely likely. I think that I need to do something like
what you see in the attached.

Anyway, I'll take care of it tomorrow. Sorry for missing it before my commit.

--
Peter Geoghegan

Attachment Content-Type Size
0001-Mark-buffers-as-defined-to-Valgrind-consistently.patch application/octet-stream 1.7 KB

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