Hi, On 2023-02-08 14:11:45 -0800, Andres Freund wrote: > On 2023-02-07 17:10:21 -0800, Andres Freund wrote: > I don't really understand how GetSafeSnapshotBlockingPids() can end up finding > deadlock-hard's sessions being blocked by a safe snapshot. Afaict nothing uses > serializable in that test. How can SXACT_FLAG_DEFERRABLE_WAITING be set for > the sxact of a backend that never did serializable? Are we possibly forgetting > to clear it or such? > > > I don't think it should affect the reports here, but I did break something > when removing SHMQueue - GetSafeSnapshotBlockingPids() doesn't check > output_size anymore. Will fix. Thomas, any chance you could do a pass through > 96003717645 to see if I screwed up other things? I stared a lot at that > change, but I obviously did miss at least one thing.
Argh, it's actually caused by 96003717645 as well: Previously loop iteration without finding a matching pid ends with sxact == NULL, now it doesn't. Greetings, Andres Freund
