| From: | Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, James Coleman <jtc331(at)gmail(dot)com>, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: BUG #16104: Invalid DSA Memory Alloc Request in Parallel Hash |
| Date: | 2019-12-14 13:39:12 |
| Message-ID: | 20191214133912.effa4k2pwjnmplej@development |
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| Thread: | |
| 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(dot)vondra(at)2ndquadrant(dot)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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