lp:~laurynas-biveinis/percona-server/bug1100178-1100643-5.1

Branch merges

Merged into lp:percona-server/5.1 at revision 524

Stewart Smith (community): Approve on 2013-02-06

George Ormond Lorch III: Approve (g2) on 2013-02-05

Diff: 62 lines (+17/-7)

3 files modified

Percona-Server/storage/innodb_plugin/buf/buf0buf.c (+3/-1)
Percona-Server/storage/innodb_plugin/include/buf0buf.h (+4/-0)
Percona-Server/storage/innodb_plugin/lock/lock0lock.c (+10/-6)

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Related bugs

Bug #1100178: InnoDB: Failing assertion: mode == BUF_GET_POSSIBLY_FREED || !block->page.file_page_was_freed in file buf0buf.c line 2910	High	Fix Released
Bug #1100643: InnoDB monitor reads in data pages needlessly	Medium	Fix Released

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514. By Laurynas Biveinis on 2013-01-18

Fix

bug 1100178 (InnoDB: Failing assertion: mode ==
BUF_GET_POSSIBLY_FREED || !block->page.file_page_was_freed in file
buf0buf.c line 2910) which is also upstream bug
http://bugs.mysql.com/bug.php?id=68116

and bug 1100643 (InnoDB monitor reads in data pages needlessly).

The 1st bug issue is that lock_print_info_all_transactions prefetches
the data pages for the subsequent lock info print without holding any
locks. Thus, these pages might become unlocked and freed, making
their prefetch fail with the assertion error. Fixed by backporting
the BUF_GET_POSSIBLY_FREED flag for buf_page_get_gen() and using it
for the prefetch.

The 2nd bug issue is that the prefetch itself is not required for the
innodb_show_verbose_locks=0 case, as the pages won't be read in this
case. Fixed by checking the flag value.

513. By <email address hidden> on 2013-01-17

Merge lp:~hrvojem/percona-server/bug1092106-5.1

512. By <email address hidden> on 2013-01-09

Merge lp:~hrvojem/percona-server/rn-5.1.66-14.2-r2

511. By <email address hidden> on 2013-01-08

Merge lp:~laurynas-biveinis/percona-server/BT-16274-bug1087202-1087218-5.1

510. By <email address hidden> on 2013-01-03

Merge lp:~vlad-lesin/percona-server/5.1-bug1049871-injections-gca

509. By <email address hidden> on 2012-12-27

Merge lp:~hrvojem/percona-server/rn-5.1.66-14.2

508. By <email address hidden> on 2012-12-19

Merge lp:~hrvojem/percona-server/bug1057031-5.1

507. By <email address hidden> on 2012-12-19

Merge lp:~stewart/percona-server/5.1-bug1090596

506. By <email address hidden> on 2012-12-18

Merge lp:~vlad-lesin/percona-server/5.1-bug1083377-gca

505. By <email address hidden> on 2012-12-14

Merge lp:~laurynas-biveinis/percona-server/xtradb-multiple-bmp-files-51