Thread 2 (Thread 0x7f8daad27700 (LWP 3138)):
#0  0x00007f8dac37eb17 in sigwaitinfo () from /lib64/libc.so.6
#1  0x000000000099428b in timer_notify_thread (arg=<value optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/mysys/posix_timers.c:78
#2  0x00007f8dadcc0851 in start_thread () from /lib64/libpthread.so.0
#3  0x00007f8dac43394d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f8dae0e27e0 (LWP 3136)):
#0  0x00007f8dadcc569c in pthread_kill () from /lib64/libpthread.so.0
#1  0x0000000000687c4e in handle_fatal_signal (sig=6) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/signal_handler.cc:254
#2  <signal handler called>
#3  0x00007f8dac37d8e5 in raise () from /lib64/libc.so.6
#4  0x00007f8dac37f0c5 in abort () from /lib64/libc.so.6
#5  0x0000000000a65dc1 in mem_heap_check (heap=<value optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/mem/mem0dbg.cc:680
#6  0x0000000000b80e44 in mem_heap_free_func (n_instances=<value optimized out>)
    at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/mem0mem.ic:471
#7  mem_free_func (n_instances=<value optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/include/mem0mem.ic:563
#8  buf_pool_free (n_instances=<value optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc:1460
#9  0x0000000000b80f8f in buf_pool_init (total_size=<value optimized out>, populate=1, n_instances=1)
    at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/buf/buf0buf.cc:1431
#10 0x0000000000b103b3 in innobase_start_or_create_for_mysql () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/srv/srv0start.cc:1889
#11 0x00000000009fd92a in innobase_init (p=<value optimized out>) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/storage/innobase/handler/ha_innodb.cc:3551
#12 0x00000000005b8efc in ha_initialize_handlerton (plugin=0x2b05af8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/handler.cc:691
#13 0x0000000000731469 in plugin_initialize (plugin=0x2b05af8) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_plugin.cc:1126
#14 0x00000000007353ba in plugin_init (argc=0x14ff37c, argv=0x2a13c38, flags=0) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/sql_plugin.cc:1417
#15 0x00000000005a685d in init_server_components () at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:4836
#16 0x00000000005ab3af in mysqld_main (argc=59, argv=0x2a13c38) at /bzr/5.6-QA_dbg/Percona-Server-5.6.13-rc60.5/sql/mysqld.cc:5470
#17 0x00007f8dac369cdd in __libc_start_main () from /lib64/libc.so.6
#18 0x000000000059cdf5 in _start ()