Fix race condition in SSI when reading PredXact->SxactGlobalXmin

Title

CI (CFBot)

Needs rebase! Needs rebase since 12 hours. Failing since 3 weeks.
Additional links previous successfully applied patch (outdated):

Stats (from CFBot)

Unknown

Tags

Backport Bugfix My First Patch

Created

2025-09-05 18:58:49

Last modified

2026-08-01 00:28:06 (12 hours ago)

Latest email

2026-06-12 01:04:38 (1 month ago)

Status

PG20-2 (2026-09-01 – 2026-09-30): Ready for Committer

PG20-1 (2026-07-01 – 2026-07-31): Moved to different CF

PG19-Final (2026-03-01 – 2026-04-09): Moved to different CF

PG19-4 (2026-01-01 – 2026-01-31): Moved to different CF

PG19-3 (2025-11-01 – 2025-11-30): Moved to different CF

Target version

stable

Authors

Josh Curtis (joshcurtis)

Reviewers

Mihail Nikalayeu (mihailnikalayeu) Become reviewer

Committer

Links

Emails

Fix race condition in SSI when reading PredXact->SxactGlobalXmin: First at 2025-09-04 22:09:57 by Josh Curtis <jcurtis825 at gmail.com>
Latest at 2026-06-12 01:04:38 by Josh Curtis <jcurtis825 at gmail.com>
Latest attachment (v4-0001-Fix-race-condition-when-reading-PredXact-SxactGlo.patch) at 2026-06-12 01:04:38 from Josh Curtis <jcurtis825 at gmail.com>
    Attachment (v4-0001-Fix-race-condition-when-reading-PredXact-SxactGlo.patch) at 2026-06-12 01:04:38 from Josh Curtis <jcurtis825 at gmail.com> (Patch: Yes)
    Attachment (v3-0001-Fix-race-condition-when-reading-PredXact-SxactGlo.patch) at 2026-03-28 13:07:00 from Mihail Nikalayeu <mihailnikalayeu at gmail.com> (Patch: Yes)
    Attachment (v2-0001-PATCH-v2-Add-test-to-demonstrate-bug-in-SSI.patch) at 2026-03-08 19:21:00 from Mihail Nikalayeu <mihailnikalayeu at gmail.com> (Patch: Yes)
    Attachment (v1-0001-Add-test-to-demonstrate-bug-in-SSI.patch) at 2026-02-21 21:15:32 from Josh Curtis <jcurtis825 at gmail.com> (Patch: Yes)
    Attachment (v1-0001-Fix-race-condition-when-reading-PredXact-SxactGlo.patch) at 2025-09-04 22:09:57 from Josh Curtis <jcurtis825 at gmail.com> (Patch: Yes)

History

When	Who	What
2026-08-01 00:59:31	CFbot	Patch needs rebase
2026-08-01 00:28:06	Mihail Nikalayeu (mihailnikalayeu)	Moved from CF PG20-1 to CF PG20-2
2026-06-12 01:40:29	CFbot	Patch does not need rebase anymore
2026-04-10 00:00:06	CFbot	Moved from CF PG19-Final to CF PG20-1
2026-04-07 02:12:57	CFbot	Patch needs rebase
2026-02-21 21:16:24	Josh Curtis (joshcurtis)	New status: Ready for Committer
2026-02-03 22:10:12	Álvaro Herrera (alvherre)	Moved from CF PG19-4 to CF PG19-Final
2025-12-29 20:23:50	Josh Curtis (joshcurtis)	Moved from CF PG19-3 to CF PG19-4
2025-10-22 05:05:53	Mihail Nikalayeu (mihailnikalayeu)	Added mihailnikalayeu as reviewer
2025-09-05 18:58:50	Josh Curtis (joshcurtis)	Attached mail thread CAEkjoh2X8yL9TKrQKx6SL6gtMNuZsyH8K-+rE78EwdOv4oXjSA@mail.gmail.com
2025-09-05 18:58:49	Josh Curtis (joshcurtis)	Created patch record