Fix race condition in SSI when reading PredXact->SxactGlobalXmin

Title

CI (CFBot)

Needs rebase! Needs rebase since 2 months. Failing since 2 months.
Additional links previous successfully applied patch (outdated):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

2026-10-02 03:00:01 (50 minutes ago)

Latest email

2026-09-22 18:56:10 (1 week ago)

Status

PG20-3 (2026-11-01 – 2026-11-30): Waiting on Author

PG20-2 (2026-09-01 – 2026-09-30): Moved to different CF

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), Manuel Reyes Bravo (manu15) 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 2026-09-22 18:56:10 by Manu <manuelreyesbravo at gmail.com>
Latest attachment (nocfbot-v4-publish-xmin-after-scan.diff.txt) at 2026-09-22 18:56:10 from Manu <manuelreyesbravo at gmail.com>
    Attachment (nocfbot-v4-publish-xmin-after-scan.diff.txt) at 2026-09-22 18:56:10 from Manu <manuelreyesbravo at gmail.com> (Patch: Yes)
    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
2026-10-02 03:00:01	shihao zhong (zhong950419)	Moved from CF PG20-2 to CF PG20-3
2026-09-22 18:58:02	Manuel Reyes Bravo (manu15)	Added manu15 as reviewer
2026-08-30 16:30:16	Andrey Borodin (x4m)	New status: Waiting on Author
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

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