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help / color / mirror / Atom feedFrom: Michael Paquier <[email protected]>
To: Chris Hofstaedtler <[email protected]>
Cc: Thomas Munro <[email protected]>
Cc: [email protected]
Subject: Re: BUG #19416: Backend SIGSEGV in ExecShutdownHashJoin/ExecHashTableDetach/dsa_free
Date: Wed, 8 Apr 2026 11:06:14 +0900
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
<CA+hUKG+u6BCEJH27qTJd-SPxtehEpt=RbLc_ON7itYvrfVTc8A@mail.gmail.com>
<[email protected]>
On Tue, Apr 07, 2026 at 10:53:36AM +0200, Chris Hofstaedtler wrote:
> Sorry for the lack of followup. Currently we are thinking our problem
> matches the bug described in
> https://postgr.es/m/[email protected]
> ("[BUG + PATCH] DSA pagemap out-of-bounds in make_new_segment odd-sized
> path").
That smells like the same problem to me.
> For now our plan is to wait for the next 18.x stable release, and then reenable
> enable_parallel_hash. Then see if it occours again.
The next minor release is planned for the 14th of May, as per:
https://www.postgresql.org/developer/roadmap/
Please let us know how it goes, in case we have a different problem at
hand. You could as well cherry-pick 4da2afd01f93 in your builds of
v18, and give it a try in a non-production environment.
--
Michael
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To: [email protected]
Cc: [email protected], [email protected], [email protected], [email protected]
Subject: Re: BUG #19416: Backend SIGSEGV in ExecShutdownHashJoin/ExecHashTableDetach/dsa_free
In-Reply-To: <[email protected]>
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