Percona Server moved to https://jira.percona.com/projects/PS

Server crash if a changed page bitmap error occurs concurrently with executing FLUSH CHANGED_PAGE_BITMAPS

Bug #1651656 reported by Laurynas Biveinis
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Percona Server moved to https://jira.percona.com/projects/PS
Status tracked in 5.7
5.5
Fix Released
High
Laurynas Biveinis
Percona Server moved to https://jira.percona.com/projects/PS 5.5.55-38.8
5.6
Fix Released
High
Laurynas Biveinis
Percona Server moved to https://jira.percona.com/projects/PS 5.6.35-80.0
5.7
Fix Released
High
Laurynas Biveinis
Percona Server moved to https://jira.percona.com/projects/PS 5.7.17-11

Bug Description

If a bitmap write I/O errors happens in the background log tracking thread while a FLUSH CHANGED_PAGE_BITMAPS is executing concurrently, the two threads enter a race condition where the background thread frees the mutex while the FLUSH locks/unlocks it, resulting in a crash.

Tags: bitmap xtradb
Laurynas Biveinis (laurynas-biveinis)
tags: added: bitmap xtradb
Revision history for this message
Laurynas Biveinis (laurynas-biveinis) wrote :

     https://github.com/percona/percona-server/pull/1286
     https://github.com/percona/percona-server/pull/1269

Revision history for this message
Laurynas Biveinis (laurynas-biveinis) wrote :

Encountered on 5.5

Revision history for this message
Laurynas Biveinis (laurynas-biveinis) wrote :

     https://github.com/percona/percona-server/pull/1634

Revision history for this message
Shahriyar Rzayev (rzayev-sehriyar) wrote :

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-1041

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