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From:Marc Alff Date:June 8 2010 12:41pm
Subject:bzr commit into mysql-trunk-bugfixing branch (marc.alff:3092) Bug#54334
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#At file:///Users/malff/BZR_TREE/mysql-trunk-bugfixing-54334/ based on revid:davi.arnaut@stripped

 3092 Marc Alff	2010-06-08
      Bug#54334 Double initialization of mysys mutexes
      Prior to this fix, mysys mutexes such as THR_LOCK_lock could be initialized
      twice by a call to my_init().
      The root cause was out of place initialization in my_basic_init(),
      calling my_thread_global_init().
      With this fix,
      - my_basic_init() properly initializes the mutex implementation itself,
      for SAFE or FAST mutexes, and for platform dependent initializations,
      before initialiazing a mutex.
      - my_init() properly initializes mysys mutexes once,
      when making the first call to my_thread_global_init().

=== modified file 'mysys/my_init.c'
--- a/mysys/my_init.c	2010-05-28 22:53:26 +0000
+++ b/mysys/my_init.c	2010-06-08 12:41:48 +0000
@@ -104,8 +104,6 @@ my_bool my_basic_init(void)
   mysql_stdin= & instrumented_stdin;
 #if defined(THREAD)
-  if (my_thread_global_init())
-    return 1;
 #  if defined(SAFE_MUTEX)
   safe_mutex_global_init();		/* Must be called early */
 #  endif

Attachment: [text/bzr-bundle] bzr/
bzr commit into mysql-trunk-bugfixing branch (marc.alff:3092) Bug#54334Marc Alff8 Jun