Created by Kristian Nielsen and last modified
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3454. By Kristian Nielsen

MDEV-359: Fix another case where switch-off semisync could cause a race that ended with server crash.

3453. By Sergei Golubchik

Use the portable form of INSTALL PLUGIN in rpl_mdev359.test

3452. By Sergei Golubchik

fixing the order of includes in the rpl_mdev359.test

3451. By Kristian Nielsen

MDEV-359: Server crash when SET GLOBAL rpl_semi_sync_master_enabled = OFF

The semisync code does a fast-but-unsafe check for enabled or not without lock,
followed by a slow-but-safe check under lock. However, if the slow check failed,
the code still referenced not valid data (in an assert() expression), causing a

Fixed by not running the incorrect assert when semisync is disabled.

3450. By Sergei Golubchik

MDEV-349 5.5 xtradb innodb_prefix_index_liftedlimit crash with valgrind

This is XtraDB bug lp:1015109, introduced by innodb_split_buf_pool_mutex.patch

Comment the offending assertion, until the fixed XtraDB is available

3449. By Vladislav Vaintroub

MDEV-361 - Fix handle leak in os_thread_create (Windows)

3448. By Kristian Nielsen

Fix memory leak introduced with merge of mysql 5.5.

MySQL introduced a class Deferred_log_events. This class keeps a pointer
last_added. The code was keeping this pointer around even after the memory
pointed to was freed, and later comparing the bogus pointer against other
allocated memory. This is illegal, and can randomly produce false equal
comparisons depending on whatever the malloc() subsystem decides to return.

3447. By Michael Widenius

Automatic merge

3446. By Sergey Petrunia

Merge 5.3 -> 5.5

3445. By Timour Katchaounov

Merged the fix for bug lp:944706, mdev-193

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