Re: BUG #16104: Invalid DSA Memory Alloc Request in Parallel Hash
Tomas Vondra <tomas.vondra@2ndquadrant.com>
From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>, Andres Freund <andres@anarazel.de>, James Coleman <jtc331@gmail.com>, PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Date: 2019-12-14T13:39:12Z
Lists: pgsql-bugs
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
Commits
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Rotate instead of shifting hash join batch number.
- 5c0a132cf141 9.4.26 landed
- 893eaf0be8be 9.5.21 landed
- 15861deb65cd 9.6.17 landed
- 8e89bc6dfd3d 10.12 landed
- 9e551a14cb45 11.7 landed
- 8052aaf521e4 12.2 landed
- e69d64454778 13.0 landed