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From: Andrey Borodin <x4mmm@yandex-team.ru>
To: Marko Tiikkaja <marko@joh.to>
Cc: radim@boringsql.com
Cc: PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Subject: Re: BUG #19490: Streaming standby on 16.14 stops applying WAL on MultiXactOffsetSLRU when primary is 16.8
Date: Thu, 21 May 2026 00:25:05 -0700
Message-ID: <46DB3CAB-EA1C-41A5-9D6D-5F913A2AAF66@yandex-team.ru> (raw)
In-Reply-To: <CAL9smLBMxKBCmsA9UGcmf93bT2_MsZ+POH-oHREuwKdmMU7jfQ@mail.gmail.com>
References: <19490-9c59c6a583513b99@postgresql.org>
	<46FE61C9-F273-45FD-BED7-0F8CDA6EB992@yandex-team.ru>
	<CAL9smLBMxKBCmsA9UGcmf93bT2_MsZ+POH-oHREuwKdmMU7jfQ@mail.gmail.com>



> 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.

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