CURRENT_TEST: main.1st
2013-08-17 18:46:47 0 [Warning] Using unique option prefix sort_buffer instead of sort_buffer_size is deprecated and will be removed in a future release. Please use the full name instead.
2013-08-17 18:46:47 0 [Warning] The syntax '--master-retry-count' is deprecated and will be removed in a future release. Please use 'CHANGE MASTER TO master_retry_count = <num>' instead.
2013-08-17 18:46:47 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2013-08-17 18:46:47 7716 [Warning] Buffered warning: Could not increase number of max_open_files to more than 1024 (request: 4161)

2013-08-17 18:46:47 7716 [Warning] Buffered warning: Changed limits: table_cache: 431 (requested 2000)

2013-08-17 18:46:47 7716 [Note] Plugin 'FEDERATED' is disabled.
2013-08-17 18:46:47 7f3d18a757e0 InnoDB: !!!!!!!! UNIV_DEBUG switched on !!!!!!!!!
2013-08-17 18:46:47 7716 [Note] InnoDB: The InnoDB memory heap is disabled
2013-08-17 18:46:47 7716 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2013-08-17 18:46:47 7716 [Note] InnoDB: Compressed tables use zlib 1.2.3
2013-08-17 18:46:47 7716 [Note] InnoDB: Using Linux native AIO
2013-08-17 18:46:47 7716 [Note] InnoDB: Using CPU crc32 instructions
2013-08-17 18:46:47 7716 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2013-08-17 18:46:47 7716 [Note] InnoDB: Completed initialization of buffer pool
2013-08-17 18:46:47 7716 [Note] InnoDB: Highest supported file format is Barracuda.
2013-08-17 18:46:47 7716 [Warning] InnoDB: last tracked LSN in './ib_modified_log_2_1625977.xdb' is 1625977, but the last checkpoint LSN is 1648140.  This might be due to a server crash or a very fast shutdown.  
2013-08-17 18:46:47 7716 [Note] InnoDB: reading the log to advance the last tracked LSN.

2013-08-17 18:46:47 7716 [Note] InnoDB: continuing tracking changed pages from LSN 1648140

2013-08-17 18:46:47 7716 [Note] InnoDB: 128 rollback segment(s) are active.
2013-08-17 18:46:47 7716 [Note] InnoDB: Waiting for purge to start
2013-08-17 18:46:47 7716 [Note] InnoDB:  Percona XtraDB (http://www.percona.com) 5.6.13-rc60.4 started; log sequence number 1648140
2013-08-17 18:46:47 7716 [Warning] /sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld: unknown option '--loose-skip-ndbcluster'
2013-08-17 18:46:47 7716 [Warning] /sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld: unknown option '--loose-debug-assert-if-crashed-table'
2013-08-17 18:46:47 7716 [Warning] /sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld: unknown option '--loose-debug-assert-on-error'
2013-08-17 18:46:47 7716 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 39992bcc-0754-11e3-b2a6-902b34625689.
2013-08-17 18:46:48 7716 [Note] RSA private key file not found: /sde/062075/current1_8/master-data//private_key.pem. Some authentication plugins will not work.
2013-08-17 18:46:48 7716 [Note] RSA public key file not found: /sde/062075/current1_8/master-data//public_key.pem. Some authentication plugins will not work.
2013-08-17 18:46:48 7716 [Note] Server hostname (bind-address): '*'; port: 13140
2013-08-17 18:46:48 7716 [Note] IPv6 is available.
2013-08-17 18:46:48 7716 [Note]   - '::' resolves to '::';
2013-08-17 18:46:48 7716 [Note] Server socket created on IP: '::'.
2013-08-17 18:46:48 7716 [Warning] 'user' entry 'root@qaserver.home' ignored in --skip-name-resolve mode.
2013-08-17 18:46:48 7716 [Warning] 'proxies_priv' entry '@ root@qaserver.home' ignored in --skip-name-resolve mode.
2013-08-17 18:46:48 7716 [Note] Event Scheduler: Loaded 0 events
2013-08-17 18:46:48 7716 [Note] /sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld: ready for connections.
Version: '5.6.13-rc60.4-debug-log'  socket: '/sde/062075/current1_8/tmp/master.sock'  port: 13140  Percona Server with XtraDB (GPL), Release rc60.4, Revision 410-debug
InnoDB: Error: 'query18053/t1' is already in tablespace memory cache
2013-08-17 18:50:24 7f3d006f2700  InnoDB: Assertion failure in thread 139899977017088 in file fil0fil.cc line 3111
InnoDB: Failing assertion: strcmp(space->name, old_name) == 0
InnoDB: We intentionally generate a memory trap.
InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
InnoDB: If you get repeated assertion failures or crashes, even
InnoDB: immediately after the mysqld startup, there may be
InnoDB: corruption in the InnoDB tablespace. Please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.6/en/forcing-innodb-recovery.html
InnoDB: about forcing recovery.
15:50:24 UTC - mysqld got signal 6 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed, 
something is definitely wrong and this may fail.
Please help us make Percona Server better by reporting any
bugs at http://bugs.percona.com/

key_buffer_size=1048576
read_buffer_size=131072
max_used_connections=31
max_threads=501
thread_count=28
connection_count=28
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 195594 K  bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x1f39c20
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 = 7f3d006f1b98 thread_stack 0x40000
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(my_print_stacktrace+0x35)[0x98b825]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(handle_fatal_signal+0x4b4)[0x687054]
/lib64/libpthread.so.0[0x340cc0f500]
/lib64/libc.so.6(gsignal+0x35)[0x340c4328a5]
/lib64/libc.so.6(abort+0x175)[0x340c434085]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld[0xbcb23a]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld[0xba1a50]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld[0xacf154]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld[0xa09cb0]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z18mysql_rename_tableP10handlertonPKcS2_S2_S2_j+0x1b7)[0x775537]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z17mysql_alter_tableP3THDPcS1_P24st_ha_create_informationP10TABLE_LISTP10Alter_infojP8st_orderb+0x3ef5)[0x7844b5]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_ZN19Sql_cmd_alter_table7executeEP3THD+0x4c7)[0x894217]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z21mysql_execute_commandP3THD+0x7fb)[0x7218eb]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x708)[0x7280d8]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x107c)[0x72923c]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z10do_commandP3THD+0x187)[0x72a437]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(_Z26threadpool_process_requestP3THD+0x77)[0x7d7817]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld[0x7da4f8]
/sde/Percona-Server-5.6.12-rc60.4-410-debug.Linux.x86_64/bin/mysqld(pfs_spawn_thread+0x12a)[0x9dfc3a]
/lib64/libpthread.so.0[0x340cc07851]
/lib64/libc.so.6(clone+0x6d)[0x340c4e890d]

Trying to get some variables.
Some pointers may be invalid and cause the dump to abort.
Query (7f3cb0005920): ALTER TABLE query18053 . `t1` DROP COLUMN `pk`
Connection ID (thread ID): 80
Status: NOT_KILLED

You may download the Percona Server operations manual by visiting
http://www.percona.com/software/percona-server/. You may find information
in the manual which will help you identify the cause of the crash.
Writing a core file