Horton

Re: BUG #19490: Streaming standby on 16.14 stops applying WAL on MultiXactOffsetSLRU when primary is 16.8

Andrey Borodin <x4mmm@yandex-team.ru>

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From: Andrey Borodin <x4mmm@yandex-team.ru>
To: Marko Tiikkaja <marko@joh.to>
Cc: radim@boringsql.com, PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Date: 2026-05-21T07:25:05Z
Lists: pgsql-hackers 

> On 21 May 2026, at 00:12, Marko Tiikkaja <marko@joh.to> wrote:
> 
> #8  0x0000654c8ae2acba in SimpleLruWriteAll (ctl=0x654c8b63e400

Thanks!

This clearly points to SimpleLruWriteAll() added in 77dff5d937b1.
If by chance you will have a backtrace of another deadlocking process -
please post it.

But it's not strictly necessary for analysis, I think we can figure out what
happened from the backtrace you already posted.


Best regards, Andrey Borodin.