thd: 0x262e930
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0x40c61128 thread_stack 0x30000
/usr/local/app/q4m/bin/mysqld(unsigned long+0x20) [0xa05744]
/usr/local/app/q4m/bin/mysqld(unsigned char+0x368) [0x60074c]
/lib/libpthread.so.0 [0x7f8ee0dcd7d0]
[0x10558a7]
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at 0x7f8ed04d83b0 is an invalid pointer
thd->thread_id=6339
thd->killed=NOT_KILLED