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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2022-01-03 17:42:13 +0200 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2022-01-03 17:42:13 +0200 |
| commit | c410f7aaea400eb98f13552725b685a2513aafcb (patch) | |
| tree | 725d81b14306103063ad66569b4fe7ec20f15e9e /storage/perfschema | |
| parent | 30b917d34adc27e55a1326406a22e2a6d0a87817 (diff) | |
| download | mariadb-git-c410f7aaea400eb98f13552725b685a2513aafcb.tar.gz | |
MDEV-27414 Server may hang when innodb_undo_log_truncate=ON
trx_purge_truncate_history(): Avoid a deadlock with
buf_pool_t::release_freed_page(). Page latches are not supposed
to be waited for while holding a mutex like buf_pool.mutex or
buf_pool.flush_list_mutex.
This regression was caused by
commit aaef2e1d8c843d1e40b1ce0c5199c3abb3c5da28 (MDEV-27058).
Before that, trx_purge_truncate_history() would buffer-fix the block,
release buf_pool.flush_list_mutex, and then wait for the
exclusive page latch.
This bug led to occasional failures of the test
innodb.undo_truncate_recover.
Diffstat (limited to 'storage/perfschema')
0 files changed, 0 insertions, 0 deletions