On Sun, Aug 13, 2023 at 9:00 AM Andres Freund <and...@anarazel.de> wrote: > On 2023-08-12 15:50:24 +1200, Thomas Munro wrote: > > Thanks. I realised that it's easy enough to test that theory about > > cleanup locks by hacking ConditionalLockBufferForCleanup() to return > > false randomly. Then the test occasionally fails as described. Seems > > like we'll need to fix that test, but it's not evidence of a server > > bug, and my signal handler refactoring patch is in the clear. Thanks > > for testing it! > > WRT fixing the test: I think just using VACUUM FREEZE ought to do the job? > After changing all the VACUUMs to VACUUM FREEZEs, 031_recovery_conflict.pl > passes even after I make ConditionalLockBufferForCleanup() fail 100%.
I pushed that change (master only for now, like the other change).