diff options
Diffstat (limited to 'mysql-test/suite/rpl/t/rpl_mdev359.test')
| -rw-r--r-- | mysql-test/suite/rpl/t/rpl_mdev359.test | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/mysql-test/suite/rpl/t/rpl_mdev359.test b/mysql-test/suite/rpl/t/rpl_mdev359.test new file mode 100644 index 00000000..5b02ecd7 --- /dev/null +++ b/mysql-test/suite/rpl/t/rpl_mdev359.test @@ -0,0 +1,31 @@ +--source include/not_embedded.inc +--source include/have_debug_sync.inc +--source include/have_binlog_format_mixed_or_statement.inc +--source include/master-slave.inc + +# MDEV-359: There was a server crash when the code first checks if semisync +# is enabled without lock, then if so takes the lock and tests again. +# If semisync was disabled in-between the first and the second test, an +# assert was incorrectly made that referenced a NULL pointer. +# +# This tests uses debug_sync to pause one thread at the critical point in +# the code, disable the semisync, and then continue the paused thread. + +CREATE TABLE t1 (a INT) ENGINE=MyISAM; +SET GLOBAL rpl_semi_sync_master_enabled = ON; +--connection master1 +SET DEBUG_SYNC = "rpl_semisync_master_commit_trx_before_lock SIGNAL m1_ready WAIT_FOR m1_cont"; +--send +INSERT INTO t1 SELECT * FROM t1; +--connection master +SET DEBUG_SYNC= "now WAIT_FOR m1_ready"; +SET GLOBAL rpl_semi_sync_master_enabled = OFF; +SET DEBUG_SYNC= "now SIGNAL m1_cont"; +--connection master1 +--reap + +connection master; +DROP TABLE t1; +SET DEBUG_SYNC= "RESET"; + +--source include/rpl_end.inc |