Re: assertion failures on BuildFarm that happened in slab.c

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: "Takamichi Osumi (Fujitsu)" <osumi.takamichi@fujitsu.com>
Cc: "'pgsql-hackers@lists.postgresql.org'" <pgsql-hackers@lists.postgresql.org>, David Rowley <dgrowleyml@gmail.com>
Date: 2022-12-21T05:04:00Z
Lists: pgsql-hackers
On Wed, Dec 21, 2022 at 03:28:01AM +0000, Takamichi Osumi (Fujitsu) wrote:
> The last failure for subscriptionCheck before those for HEAD happened 66 days ago [3]
> and I checked all failures there within 90 days. There is no similar failure.
> 
> I'm not sure, but this could be related to a recent commit (d21ded75fd) in [4].
> 
> [1] - https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=butterflyfish&dt=2022-12-20%2013%3A00%3A19
> [2] - https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=grassquit&dt=2022-12-20%2010%3A34%3A39
> [3] - https://buildfarm.postgresql.org/cgi-bin/show_failures.pl?max_days=90&stage=subscriptionCheck&filter=Submit
> [4] - https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=d21ded75fdbc18d68be6e6c172f0f842c50e9263

Good catch.  Yes, d21ded7 looks to have issues.  I am adding David in
CC.
--
Michael

Commits

  1. Fix newly introduced bug in slab.c

  2. Improve the performance of the slab memory allocator