Bug #58746 lock_number_of_rows_locked() is not thread safe
Submitted: 6 Dec 2010 5:57 Modified: 13 Feb 2012 3:30
Reporter: Sunny Bains Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: InnoDB storage engine Severity:S2 (Serious)
Version:trunk OS:Any
Assigned to: Sunny Bains CPU Architecture:Any

[6 Dec 2010 5:57] Sunny Bains 
Description:
lock_number_of_rows_locked() can be called without holding either the lock_sys_t::mutex
and the trx_t::mutex.

How to repeat:
Code inspection.

Suggested fix:
Acquire the trx_t::mutex in the lock_number_of_rows_locked() function.
[22 Dec 2010 21:31] Bugs System 
Pushed into mysql-trunk 5.6.1 (revid:alexander.nozdrin@oracle.com-20101222212842-y0t3ibtd32wd9qaw) (version source revid:alexander.nozdrin@oracle.com-20101222212842-y0t3ibtd32wd9qaw) (merge vers: 5.6.1) (pib:24)