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Diffstat (limited to 'mysql-test/t/drop.test')
| -rw-r--r-- | mysql-test/t/drop.test | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/mysql-test/t/drop.test b/mysql-test/t/drop.test index 7cd943d46da..a1451773e90 100644 --- a/mysql-test/t/drop.test +++ b/mysql-test/t/drop.test @@ -81,3 +81,44 @@ show tables; drop table t1; # End of 4.1 tests + + +# +# Test for bug#21216 "Simultaneous DROP TABLE and SHOW OPEN TABLES causes +# server to crash". Crash (caused by failed assertion in 5.0 or by null +# pointer dereference in 5.1) happened when one ran SHOW OPEN TABLES +# while concurrently doing DROP TABLE (or RENAME TABLE, CREATE TABLE LIKE +# or any other command that takes name-lock) in other connection. +# +# Also includes test for similar bug#12212 "Crash that happens during +# removing of database name from cache" reappeared in 5.1 as bug#19403 +# In its case crash happened when one concurrently executed DROP DATABASE +# and one of name-locking command. +# +--disable_warnings +drop database if exists mysqltest; +drop table if exists t1; +--enable_warnings +create table t1 (i int); +lock tables t1 read; +create database mysqltest; +connect (addconroot1, localhost, root,,); +--send drop table t1 +connect (addconroot2, localhost, root,,); +# Server should not crash in any of the following statements +--disable_result_log +show open tables; +--enable_result_log +--send drop database mysqltest +connection default; +select 1; +unlock tables; +connection addconroot1; +--reap +connection addconroot2; +--reap +disconnect addconroot1; +disconnect addconroot2; +connection default; + +--echo End of 5.0 tests |