From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: James Coleman <jtc331@gmail.com>
Cc: PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Subject: Re: BUG #16104: Invalid DSA Memory Alloc Request in Parallel Hash
Date: Sat, 14 Dec 2019 14:39:12 +0100
Message-ID: <20191214133912.effa4k2pwjnmplej@development> (raw)
In-Reply-To: <CA+hUKG+o1d5dMThbTTpCPUTJzx3FX2-TE=JRqgeEVQNo1wLfPg@mail.gmail.com>
References: <CA+hUKGJVgKknBG69fRyj_NRTjVk5mJqcZ7--uNS2C373Ry7KRg@mail.gmail.com>
<20191203170704.GA28076@alvherre.pgsql>
<20191210173224.y5vaam6ep7pjmddt@development>
<CA+hUKG+o1d5dMThbTTpCPUTJzx3FX2-TE=JRqgeEVQNo1wLfPg@mail.gmail.com>
On Sat, Dec 14, 2019 at 05:01:05PM +1300, Thomas Munro wrote:
>On Wed, Dec 11, 2019 at 6:32 AM Tomas Vondra
><tomas.vondra@2ndquadrant.com> wrote:
>> The annoying thing is that it's the workers that crash, and the leader
>> failed to notice that, so it was waiting in WaitForParallelWorkersToExit
>> forever. Not sure what the issue is.
>
>That's bad. Some edge case in
>WaitForBackgroundWorkerShutdown()/GetBackgroundWorkerPid() that is
>b0rked perhaps? Can you reproduce it, and tell us what the stack
>looks like, maybe on a new thread?
Sure. I'll try reproducing it and get this extra info. I was planning to
do that, but then I lost the data for the report because of a silly
mistake. Early next week, hopefully.
regards
--
Tomas Vondra http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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Cc: tomas.vondra@2ndquadrant.com, thomas.munro@gmail.com, alvherre@2ndquadrant.com, andres@anarazel.de, jtc331@gmail.com, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #16104: Invalid DSA Memory Alloc Request in Parallel Hash
In-Reply-To: <20191214133912.effa4k2pwjnmplej@development>
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