Horton

Add debugging help in OwnLatch().

Thomas Munro <tmunro@postgresql.org>

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Commit: 12e28aac8e8eb76cab13a4e9b696e3dab17f1c99
Author: Thomas Munro <tmunro@postgresql.org>
Date: 2022-05-31T00:06:11Z
Releases: 15.0 
Add debugging help in OwnLatch().

Build farm animal gharial recently failed a few times in a parallel
worker's call to OwnLatch() with "ERROR:  latch already owned".  Let's
turn that into a PANIC and show the PID of the owner, to try to learn
more.

Discussion: https://postgr.es/m/CA%2BhUKGJ_0RGcr7oUNzcHdn7zHqHSB_wLSd3JyS2YC_DYB%2B-V%3Dg%40mail.gmail.com

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PathChange+/−
src/backend/storage/ipc/latch.c modified +5 −2

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