vacuum_set_xid_limits() can set multiXactCutoff to an unsafe value

Title

CI (CFBot)

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Stats (from CFBot)

Unknown

Topic

Bug Fixes

Tags

Created

2019-09-06 17:05:16

Last modified

2019-10-17 02:10:10 (6 years ago)

Latest email

2019-10-16 23:25:08 (6 years ago)

Status

2019-11 (2019-11-01 – 2019-11-30): Committed

Target version

Authors

Nathan Bossart (bossartn), Jeremy Schneider (jer)

Reviewers

Thomas Munro (macdice)Become reviewer

Committer

Thomas Munro (macdice)

Links

Emails

ERROR: multixact X from before cutoff Y found to be still running: First at 2019-09-05 00:37:40 by "Bossart, Nathan" <bossartn at amazon.com>
Latest at 2019-10-16 23:25:08 by Thomas Munro <thomas.munro at gmail.com>
Latest attachment (0001-Fix-bug-that-could-try-to-freeze-running-multixacts.patch) at 2019-10-16 06:10:48 from Thomas Munro <thomas.munro at gmail.com>
    Attachment (0001-Fix-bug-that-could-try-to-freeze-running-multixacts.patch) at 2019-10-16 06:10:48 from Thomas Munro <thomas.munro at gmail.com> (Patch: Yes)
    Attachment (fix_multixact_limit_v2.patch) at 2019-09-05 01:01:05 from Jeremy Schneider <schnjere at amazon.com> (Patch: Yes)
    Attachment (fix_multixact_limit.patch) at 2019-09-05 00:37:40 from "Bossart, Nathan" <bossartn at amazon.com> (Patch: Yes)

History

When	Who	What
2019-10-17 02:10:10	Thomas Munro (macdice)	Closed in commitfest 2019-11 with status: Committed
2019-10-17 02:10:10	Thomas Munro (macdice)	Changed committer to macdice
2019-09-06 17:05:54	Nathan Bossart (bossartn)	Changed reviewers to Thomas Munro (macdice)
2019-09-06 17:05:54	Nathan Bossart (bossartn)	Changed authors to Nathan Bossart (bossartn), Jeremy Schneider (jer)
2019-09-06 17:05:16	Nathan Bossart (bossartn)	Attached mail thread DAFB8AFF-2F05-4E33-AD7F-FF8B0F760C17@amazon.com
2019-09-06 17:05:16	Nathan Bossart (bossartn)	Created patch record