Bug #50721 crashes in myrg_attach_children
Submitted: 29 Jan 2010 9:58 Modified: 11 Feb 2011 7:08
Reporter: Shane Bester (Platinum Quality Contributor) Email Updates:
Status: Can't repeat Impact on me:
None 
Category:MySQL Server: Merge storage engine Severity:S1 (Critical)
Version:5.1.42 OS:Windows
Assigned to: CPU Architecture:Any

[29 Jan 2010 9:58] Shane Bester
Description:
might be similar to bug #45796

when updating some base tables, merge code is crashing randomly.

mysqld.exe!myrg_attach_children()[myrg_open.c:447]                 
mysqld.exe!ha_myisammrg::attach_children()[ha_myisammrg.cc:549]    
mysqld.exe!ha_myisammrg::extra()[ha_myisammrg.cc:950]              
mysqld.exe!attach_merge_children()[sql_base.cc:4168]               
mysqld.exe!open_tables()[sql_base.cc:4730]                         
mysqld.exe!mysql_update()[sql_update.cc:331]                       
mysqld.exe!mysql_execute_command()[sql_parse.cc:3065]              
mysqld.exe!mysql_parse()[sql_parse.cc:5974]                        
mysqld.exe!dispatch_command()[sql_parse.cc:1233]                   
mysqld.exe!do_command()[sql_parse.cc:872]                          
mysqld.exe!handle_one_connection()[sql_connect.cc:1127]            
mysqld.exe!pthread_start()[my_winthread.c:85]                      
mysqld.exe!_callthreadstart()[thread.c:295]                        
mysqld.exe!_threadstart()[thread.c:275]                            
kernel32.dll!BaseThreadStart()                                     

How to repeat:
repeatable in a single thread, but no definite testcase exists yet.
[3 Feb 2010 8:15] MySQL Verification Team
i will need to check if this is a duplicate of bug #48438 which i couldn't find because it was marked private.