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  1. MariaDB Server
  2. MDEV-15272

rpl.rpl_mdev6020, rpl.rpl_parallel_conflicts failed in buildbot, server crashed

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    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 10.2
    • Fix Version/s: 10.2
    • Component/s: Replication, Tests
    • Labels:
      None

      Description

      http://buildbot.askmonty.org/buildbot/builders/p8-rhel7-bintar-debug/builds/3351/steps/test/logs/stdio
      10.2 30289a2713807dbca9b2560634379a5b p8-rhel7-bintar-debug 2018-01-19 06:31:15 3351 nm Normal run, no --ps-protocol rpl.rpl_mdev6020 innodb,row

      rpl.rpl_mdev6020 'innodb,row'            w4 [ fail ]
              Test ended at 2018-01-18 23:47:39
       
      CURRENT_TEST: rpl.rpl_mdev6020
      mysqltest: In included file "./include/start_slave.inc": 
      included from /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysql-test/suite/rpl/t/rpl_mdev6020.test at line 37:
      At line 34: query 'START SLAVE' failed: 2013: Lost connection to MySQL server during query
       
      The result from queries just before the failure was:
      < snip >
      [connection master]
      connection slave;
      include/stop_slave.inc
      connection master;
      include/rpl_stop_server.inc [server_number=1]
      include/rpl_start_server.inc [server_number=1]
      connection slave;
      SET SQL_LOG_BIN=0;
      ALTER TABLE mysql.gtid_slave_pos ENGINE = InnoDB;
      SET SQL_LOG_BIN=1;
      SET @old_engine= @@GLOBAL.default_storage_engine;
      SET GLOBAL default_storage_engine=InnoDB;
      SET @old_parallel= @@GLOBAL.slave_parallel_threads;
      SET GLOBAL slave_parallel_threads=12;
      CHANGE MASTER TO master_host='127.0.0.1', master_port=SERVER_MYPORT_1, master_user='root', master_log_file='master-bin.000001', master_log_pos=4;
      include/start_slave.inc
       
      More results from queries before failure can be found in /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysql-test/var/4/log/rpl_mdev6020.log
       
       
      Server [mysqld.2 - pid: 14899, winpid: 14899, exit: 256] failed during test run
      Server log from this test:
      ----------SERVER LOG START-----------
      2018-01-18 23:47:29 70366585536800 [Note] /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld (mysqld 10.2.13-MariaDB-debug-log) starting as process 14900 ...
      2018-01-18 23:47:29 70366585536800 [Warning] Could not increase number of max_open_files to more than 1024 (request: 4162)
      2018-01-18 23:47:29 70366585536800 [Note] Plugin 'SEQUENCE' is disabled.
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: !!!!!!!! UNIV_DEBUG switched on !!!!!!!!!
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Uses event mutexes
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Compressed tables use zlib 1.2.7
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Using Linux native AIO
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Number of pools: 1
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Using generic crc32 instructions
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Initializing buffer pool, total size = 8M, instances = 1, chunk size = 8M
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Completed initialization of buffer pool
      2018-01-18 23:47:29 70366345031856 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Highest supported file format is Barracuda.
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: 128 out of 128 rollback segments are active.
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Creating shared tablespace for temporary tables
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
      2018-01-18 23:47:29 70366585536800 [Note] InnoDB: File './ibtmp1' size is now 12 MB.
      2018-01-18 23:47:30 70366585536800 [Note] InnoDB: Waiting for purge to start
      2018-01-18 23:47:30 70366585536800 [Note] InnoDB: 5.7.20 started; log sequence number 1627873
      2018-01-18 23:47:30 70366051430576 [Note] InnoDB: Loading buffer pool(s) from /dev/shm/var_auto_RJzJ/4/mysqld.2/data/ib_buffer_pool
      2018-01-18 23:47:30 70366051430576 [Note] InnoDB: Buffer pool(s) load completed at 180118 23:47:30
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_SYS_DATAFILES' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_SYS_TABLESTATS' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_MUTEXES' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_CMP' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_FT_DELETED' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_CMP_RESET' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_LOCK_WAITS' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_TABLESPACES_ENCRYPTION' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_CMPMEM_RESET' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'FEEDBACK' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_FT_INDEX_TABLE' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_CMP_PER_INDEX_RESET' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'user_variables' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_FT_INDEX_CACHE' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_FT_BEING_DELETED' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_FT_DEFAULT_STOPWORD' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_FT_CONFIG' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_SYS_TABLESPACES' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_TABLESPACES_SCRUBBING' is disabled.
      2018-01-18 23:47:30 70366585536800 [Note] Plugin 'INNODB_SYS_SEMAPHORE_WAITS' is disabled.
      2018-01-18 23:47:30 70366585536800 [Warning] /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld: unknown option '--loose-pam-debug'
      2018-01-18 23:47:30 70366585536800 [Note] Server socket created on IP: '127.0.0.1'.
      2018-01-18 23:47:30 70366585536800 [Note] Reading of all Master_info entries succeded
      2018-01-18 23:47:30 70366585536800 [Note] Added new Master_info '' to hash table
      2018-01-18 23:47:30 70366585536800 [Note] /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld: ready for connections.
      Version: '10.2.13-MariaDB-debug-log'  socket: '/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysql-test/var/tmp/4/mysqld.2.sock'  port: 16061  Source distribution
      2018-01-18 23:47:31 70366470766768 [Note] Deleted Master_info file '/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysql-test/var/4/mysqld.2/data/master.info'.
      2018-01-18 23:47:31 70366470766768 [Note] Deleted Master_info file '/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysql-test/var/4/mysqld.2/data/relay-log.info'.
      2018-01-18 23:47:31 70366470766768 [Note] Master connection name: ''  Master_info_file: 'master.info'  Relay_info_file: 'relay-log.info'
      2018-01-18 23:47:31 70366470766768 [Note] 'CHANGE MASTER TO executed'. Previous state master_host='', master_port='3306', master_log_file='', master_log_pos='4'. New state master_host='127.0.0.1', master_port='16060', master_log_file='master-bin.000001', master_log_pos='4'.
      2018-01-18 23:47:31 70366469980336 [Note] Slave I/O thread: connected to master 'root@127.0.0.1:16060',replication started in log 'master-bin.000001' at position 4
      2018-01-18 23:47:31 70366467227824 [Note] Slave SQL thread initialized, starting replication in log 'master-bin.000001' at position 4, relay log './slave-relay-bin.000001' position: 4
      2018-01-18 23:47:32 70366467227824 [Note] Error reading relay log event: slave SQL thread was killed
      2018-01-18 23:47:32 70366467227824 [Note] Slave SQL thread exiting, replication stopped in log 'master-bin.000001' at position 329
      2018-01-18 23:47:32 70366469980336 [Note] Slave I/O thread exiting, read up to log 'master-bin.000001', position 329
      2018-01-18 23:47:37 70366466834608 [Note] Master connection name: ''  Master_info_file: 'master.info'  Relay_info_file: 'relay-log.info'
      2018-01-18 23:47:37 70366466834608 [Note] 'CHANGE MASTER TO executed'. Previous state master_host='127.0.0.1', master_port='16060', master_log_file='master-bin.000001', master_log_pos='329'. New state master_host='127.0.0.1', master_port='16060', master_log_file='master-bin.000001', master_log_pos='4'.
      2018-01-18 23:47:37 70366469980336 [Note] Slave I/O thread: connected to master 'root@127.0.0.1:16060',replication started in log 'master-bin.000001' at position 4
      180118 23:47:37 [ERROR] mysqld got signal 11 ;
      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.
       
      To report this bug, see https://mariadb.com/kb/en/reporting-bugs
       
      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.
       
      Server version: 10.2.13-MariaDB-debug-log
      key_buffer_size=1048576
      read_buffer_size=131072
      max_used_connections=4
      max_threads=153
      thread_count=16
      It is possible that mysqld could use up to 
      key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 63124 K  bytes of memory
      Hope that's ok; if not, decrease some variables in the equation.
       
      Thread pointer: 0x0
      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 = 0x0 thread_stack 0x49000
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(my_print_stacktrace-0x8a352c)[0x3fc51a34]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(handle_fatal_signal-0x1210070)[0x3f26a060]
      [0x3fff7f4f0478]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(_db_enter_-0x8734e8)[0x3fc843a8]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(safe_mutex_init-0x89d2f4)[0x3fc580fc]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(+0x152d234)[0x3fc4d234]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(+0x152dd00)[0x3fc4dd00]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(my_thread_init-0x8a6a5c)[0x3fc4e2c4]
      /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld(handle_rpl_parallel_thread-0x12fae8c)[0x3f172c34]
      mysys/stacktrace.c:267(my_print_stacktrace)[0x3fbd7ba8]
      sql/signal_handler.cc:166(handle_fatal_signal)[0x3fff7f4ac23c]
      /lib64/power8/libc.so.6(clone-0xb25cc)[0x3fff7ec092a4]
      The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
      information that should help you find out what is causing the crash.
      ----------SERVER LOG END-------------
      

      [Thread debugging using libthread_db enabled]
      Using host libthread_db library "/lib64/power8/libthread_db.so.1".
      Core was generated by `/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld --default'.
      Program terminated with signal 11, Segmentation fault.
      #0  0x000000003fc843f8 in _db_enter_ (_func_=0x3fffed48 "my_getwd", _file_=0x3fffed58 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_getwd.c", _line_=50, _stack_frame_=0x3fff78065fb0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/dbug/dbug.c:1110
      1110	  _stack_frame_->func= cs->func;
      #0  0x000000003fc843f8 in _db_enter_ (_func_=0x3fffed48 "my_getwd", _file_=0x3fffed58 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_getwd.c", _line_=50, _stack_frame_=0x3fff78065fb0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/dbug/dbug.c:1110
      #1  0x000000003fc433bc in my_getwd (buf=0x3fff780660b8 "", size=80, MyFlags=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_getwd.c:50
      #2  0x000000003f26a568 in handle_fatal_signal (sig=11) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/signal_handler.cc:302
      #3  <signal handler called>
      #4  0x000000003fc843f8 in _db_enter_ (_func_=0x40000c60 "safe_mutex_init", _file_=0x40000c70 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c", _line_=188, _stack_frame_=0x3fff780672a0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/dbug/dbug.c:1110
      #5  0x000000003fc580fc in safe_mutex_init (mp=0x3fff78000050, attr=0x40fb6444 <my_fast_mutexattr>, name=0x40000320 "&var->mutex", file=0x40000228 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c", line=109) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:188
      #6  0x000000003fc4d234 in inline_mysql_mutex_init (key=75, that=0x3fff78000050, attr=0x40fb6444 <my_fast_mutexattr>, src_name=0x40000320 "&var->mutex", src_file=0x40000228 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c", src_line=109) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:619
      #7  0x000000003fc4dd00 in my_thread_init_thr_mutex (var=0x3fff78000010) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c:109
      #8  0x000000003fc4e2c4 in my_thread_init () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c:302
      #9  0x000000003f172c34 in handle_rpl_parallel_thread (arg=0x3fff1c0089c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:991
      #10 0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c00aac0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #11 0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #12 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 45 (Thread 0x3fff7f55c120 (LWP 14900)):
      #0  0x00003fff7ebf9910 in .__GI___poll () from /lib64/power8/libc.so.6
      #1  0x000000003ee138f0 in handle_connections_sockets () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld.cc:6576
      #2  0x000000003ee127c4 in mysqld_main (argc=157, argv=0x100088e8770) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld.cc:6042
      #3  0x000000003ee02618 in main (argc=26, argv=0x3fffea51c5c8) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/main.cc:25
       
      Thread 44 (Thread 0x3fff5f7ff0b0 (LWP 14950)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f66132c in os_event::wait (this=0x10008afcb30) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:166
      #2  0x000000003f6608dc in os_event::wait_low (this=0x10008afcb30, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:336
      #3  0x000000003f660eb8 in os_event_wait_low (event=0x10008afcb30, reset_sig_count=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:535
      #4  0x000000003f8af0d0 in buf_dump_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/buf/buf0dump.cc:777
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 43 (Thread 0x3fff784280b0 (LWP 14999)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x100090949a0, mp=0x100090948f0, file=0x3fd32d20 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003ee466a4 in inline_mysql_cond_wait (that=0x100090949a0, mutex=0x100090948f0, src_file=0x3fd33758 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc", src_line=965) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003ee49dbc in start_slave_thread (thread_key=36, h_func=@0x4044f9c0: 0x3ee574a0 <handle_slave_sql(void*)>, start_lock=0x100090948f0, cond_lock=0x100090948f0, start_cond=0x100090949a0, slave_running=0x100090953cc, slave_run_id=0x100090952c8, mi=0x10009090be0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc:965
      #4  0x000000003ee4a208 in start_slave_threads (thd=0x3fff14000b00, need_slave_mutex=true, wait_for_start=true, mi=0x10009090be0, master_info_fname=0x3fff78425668 "master.info", slave_info_fname=0x3fff78425868 "relay-log.info", thread_mask=3) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc:1063
      #5  0x000000003ef80950 in start_slave (thd=0x3fff14000b00, mi=0x10009090be0, net_report=true) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_repl.cc:3119
      #6  0x000000003ef397ac in mysql_execute_command (thd=0x3fff14000b00) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:4055
      #7  0x000000003ef467b4 in mysql_parse (thd=0x3fff14000b00, rawbuf=0x3fff140112b8 "START SLAVE", length=11, parser_state=0x3fff784267f0, is_com_multi=false, is_next_command=false) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:7891
      #8  0x000000003ef32bfc in dispatch_command (command=COM_QUERY, thd=0x3fff14000b00, packet=0x3fff14008a41 "START SLAVE", packet_length=11, is_com_multi=false, is_next_command=false) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:1806
      #9  0x000000003ef313d4 in do_command (thd=0x3fff14000b00) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:1360
      #10 0x000000003f0d70d0 in do_handle_one_connection (connect=0x10008ff23b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1335
      #11 0x000000003f0d6d24 in handle_one_connection (arg=0x10008ff23b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1241
      #12 0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008a7f980) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #13 0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #14 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 42 (Thread 0x3fff787880b0 (LWP 14983)):
      #0  0x00003fff7ebf9910 in .__GI___poll () from /lib64/power8/libc.so.6
      #1  0x000000003fce1e60 in vio_io_wait (vio=0x10008fd44a0, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:945
      #2  0x000000003fcdfda0 in vio_socket_io_wait (vio=0x10008fd44a0, event=VIO_IO_EVENT_READ) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:108
      #3  0x000000003fcdffec in vio_read (vio=0x10008fd44a0, buf=0x3fff24008a40 "\001", size=4) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:184
      #4  0x000000003ee20ac0 in my_real_read (net=0x3fff24000de8, complen=0x3fff78786ed0, header=1 '\001') at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:888
      #5  0x000000003ee216f0 in my_net_read_packet_reallen (net=0x3fff24000de8, read_from_server=1 '\001', reallen=0x3fff78786f98) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:1158
      #6  0x000000003ee21664 in my_net_read_packet (net=0x3fff24000de8, read_from_server=1 '\001') at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:1142
      #7  0x000000003ef30e90 in do_command (thd=0x3fff24000b00) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:1242
      #8  0x000000003f0d70d0 in do_handle_one_connection (connect=0x1000908ba20) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1335
      #9  0x000000003f0d6d24 in handle_one_connection (arg=0x1000908ba20) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1241
      #10 0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10009096cf0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #11 0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #12 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 41 (Thread 0x3fff5efff0b0 (LWP 14951)):
      #0  0x00003fff7f4b6934 in .__libc_nanosleep () from /lib64/power8/libpthread.so.0
      #1  0x000000003f6618ec in os_thread_sleep (tm=1000000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0thread.cc:230
      #2  0x000000003f882e10 in btr_defragment_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/btr/btr0defragment.cc:762
      #3  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #4  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 40 (Thread 0x3fff5ffff0b0 (LWP 14943)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f66132c in os_event::wait (this=0x10008afc9b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:166
      #2  0x000000003f6608dc in os_event::wait_low (this=0x10008afc9b0, reset_sig_count=8) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:336
      #3  0x000000003f660eb8 in os_event_wait_low (event=0x10008afc9b0, reset_sig_count=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:535
      #4  0x000000003f78e810 in srv_resume_thread (slot=0x40538ff0 <srv_sys+496>, sig_count=0, wait=true, timeout_usec=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:938
      #5  0x000000003f7938e4 in srv_worker_thread (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2604
      #6  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #7  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 39 (Thread 0x3fff5e7ff0b0 (LWP 14952)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f66132c in os_event::wait (this=0x10008afcc30) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:166
      #2  0x000000003f6608dc in os_event::wait_low (this=0x10008afcc30, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:336
      #3  0x000000003f660eb8 in os_event_wait_low (event=0x10008afcc30, reset_sig_count=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:535
      #4  0x000000003f89373c in buf_resize_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/buf/buf0buf.cc:3083
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 38 (Thread 0x3fff780c80b0 (LWP 15163)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008870, mp=0x3fff1c0087c0, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008870, mutex=0x3fff1c0087c0, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c0087b8) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c00a5e0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 37 (Thread 0x3fff687ff0b0 (LWP 14942)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f66132c in os_event::wait (this=0x10008afc8b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:166
      #2  0x000000003f6608dc in os_event::wait_low (this=0x10008afc8b0, reset_sig_count=12) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:336
      #3  0x000000003f660eb8 in os_event_wait_low (event=0x10008afc8b0, reset_sig_count=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:535
      #4  0x000000003f78e810 in srv_resume_thread (slot=0x40538f80 <srv_sys+384>, sig_count=0, wait=true, timeout_usec=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:938
      #5  0x000000003f7938e4 in srv_worker_thread (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2604
      #6  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #7  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 36 (Thread 0x3fff781280b0 (LWP 15162)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008668, mp=0x3fff1c0085b8, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008668, mutex=0x3fff1c0085b8, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c0085b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c00a100) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 35 (Thread 0x3fff788480b0 (LWP 14974)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x406f9208 <COND_slave_background>, mp=0x406fc268 <LOCK_slave_background>, file=0x3fd32d20 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003ee466a4 in inline_mysql_cond_wait (that=0x406f9208 <COND_slave_background>, mutex=0x406fc268 <LOCK_slave_background>, src_file=0x3fd33758 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc", src_line=334) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003ee47bec in handle_slave_background (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc:334
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x100090515e0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 34 (Thread 0x3fff789080b0 (LWP 14963)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x40727f90 <mysql_bin_log+4168>, mp=0x40727ee0 <mysql_bin_log+3992>, file=0x3fe33338 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f3e2fb4 in inline_mysql_cond_wait (that=0x40727f90 <mysql_bin_log+4168>, mutex=0x40727ee0 <mysql_bin_log+3992>, src_file=0x3fe33980 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/log.cc", src_line=9857) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f403bac in binlog_background_thread (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/log.cc:9857
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008fa5030) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 33 (Thread 0x3fff781880b0 (LWP 15161)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008460, mp=0x3fff1c0083b0, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008460, mutex=0x3fff1c0083b0, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c0083a8) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c009c20) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 32 (Thread 0x3fff697ff0b0 (LWP 14940)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f66132c in os_event::wait (this=0x10008afc830) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:166
      #2  0x000000003f6608dc in os_event::wait_low (this=0x10008afc830, reset_sig_count=3) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:336
      #3  0x000000003f660eb8 in os_event_wait_low (event=0x10008afc830, reset_sig_count=3) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:535
      #4  0x000000003f78e810 in srv_resume_thread (slot=0x40538f48 <srv_sys+328>, sig_count=3, wait=true, timeout_usec=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:938
      #5  0x000000003f793fd0 in srv_purge_coordinator_suspend (slot=0x40538f48 <srv_sys+328>, rseg_history_len=4) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2757
      #6  0x000000003f7944c8 in srv_purge_coordinator_thread (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2844
      #7  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #8  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 31 (Thread 0x3fff788a80b0 (LWP 14973)):
      #0  0x00003fff7f4b7448 in .__libc_sigwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003ee0bbfc in signal_hand (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/mysqld.cc:3499
      #2  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008fce0b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #3  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #4  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 30 (Thread 0x3fff782a80b0 (LWP 15158)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c007e48, mp=0x3fff1c007d98, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c007e48, mutex=0x3fff1c007d98, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c007d90) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c0099b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 29 (Thread 0x3fff6afff0b0 (LWP 14937)):
      #0  0x00003fff7f4b6934 in .__libc_nanosleep () from /lib64/power8/libpthread.so.0
      #1  0x000000003f6618ec in os_thread_sleep (tm=1000000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0thread.cc:230
      #2  0x000000003f792ff4 in srv_master_sleep () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2415
      #3  0x000000003f7931fc in srv_master_thread (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2460
      #4  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #5  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 28 (Thread 0x3fff787e80b0 (LWP 14980)):
      #0  0x00003fff7ebf9910 in .__GI___poll () from /lib64/power8/libc.so.6
      #1  0x000000003fce1e60 in vio_io_wait (vio=0x10009096810, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:945
      #2  0x000000003fcdfda0 in vio_socket_io_wait (vio=0x10009096810, event=VIO_IO_EVENT_READ) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:108
      #3  0x000000003fcdffec in vio_read (vio=0x10009096810, buf=0x3fff20091740 "\001", size=4) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:184
      #4  0x000000003ee20ac0 in my_real_read (net=0x3fff20000de8, complen=0x3fff787e6ed0, header=1 '\001') at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:888
      #5  0x000000003ee216f0 in my_net_read_packet_reallen (net=0x3fff20000de8, read_from_server=1 '\001', reallen=0x3fff787e6f98) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:1158
      #6  0x000000003ee21664 in my_net_read_packet (net=0x3fff20000de8, read_from_server=1 '\001') at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:1142
      #7  0x000000003ef30e90 in do_command (thd=0x3fff20000b00) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:1242
      #8  0x000000003f0d70d0 in do_handle_one_connection (connect=0x10008ff23b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1335
      #9  0x000000003f0d6d24 in handle_one_connection (arg=0x10008ff23b0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1241
      #10 0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10009096810) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #11 0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #12 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 27 (Thread 0x3fff783080b0 (LWP 15157)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c007c40, mp=0x3fff1c007b90, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c007c40, mutex=0x3fff1c007b90, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c007b88) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c0094d0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 26 (Thread 0x3fff5d04f0b0 (LWP 14962)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc591f4 in safe_cond_timedwait (cond=0x40fa1320 <COND_checkpoint>, mp=0x40fa1270 <LOCK_checkpoint>, abstime=0x3fff5d04e4b0, file=0x3ffc2050 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1175) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:545
      #2  0x000000003fa658d0 in inline_mysql_cond_timedwait (that=0x40fa1320 <COND_checkpoint>, mutex=0x40fa1270 <LOCK_checkpoint>, abstime=0x3fff5d04e4b0, src_file=0x3ffc20d0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/maria/ma_servicethread.c", src_line=116) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1175
      #3  0x000000003fa65fc4 in my_service_thread_sleep (control=0x4053bb40 <checkpoint_control>, sleep_time=29000000000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/maria/ma_servicethread.c:115
      #4  0x000000003fa56408 in ma_checkpoint_background (arg=0x1e) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/maria/ma_checkpoint.c:709
      #5  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008f9d710) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #6  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #7  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 25 (Thread 0x3fff6bfff0b0 (LWP 14923)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f660714 in os_event::timed_wait (this=0x10008afca30, abstime=0x3fff6bffe3a0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:286
      #2  0x000000003f660b20 in os_event::wait_time_low (this=0x10008afca30, time_in_usec=1000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:413
      #3  0x000000003f660e68 in os_event_wait_time_low (event=0x10008afca30, time_in_usec=1000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:518
      #4  0x000000003f79173c in srv_error_monitor_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:1926
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 24 (Thread 0x3fff783680b0 (LWP 15156)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c007a38, mp=0x3fff1c007988, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c007a38, mutex=0x3fff1c007988, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c007980) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c016390) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 23 (Thread 0x3fff783c80b0 (LWP 15000)):
      #0  0x00003fff7ebf9910 in .__GI___poll () from /lib64/power8/libc.so.6
      #1  0x000000003fce1e60 in vio_io_wait (vio=0x10008a7f980, event=VIO_IO_EVENT_READ, timeout=28800000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:945
      #2  0x000000003fcdfda0 in vio_socket_io_wait (vio=0x10008a7f980, event=VIO_IO_EVENT_READ) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:108
      #3  0x000000003fcdffec in vio_read (vio=0x10008a7f980, buf=0x3fff08008a40 "\001", size=4) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/vio/viosocket.c:184
      #4  0x000000003ee20ac0 in my_real_read (net=0x3fff08000de8, complen=0x3fff783c6ed0, header=1 '\001') at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:888
      #5  0x000000003ee216f0 in my_net_read_packet_reallen (net=0x3fff08000de8, read_from_server=1 '\001', reallen=0x3fff783c6f98) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:1158
      #6  0x000000003ee21664 in my_net_read_packet (net=0x3fff08000de8, read_from_server=1 '\001') at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/net_serv.cc:1142
      #7  0x000000003ef30e90 in do_command (thd=0x3fff08000b00) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_parse.cc:1242
      #8  0x000000003f0d70d0 in do_handle_one_connection (connect=0x10009032410) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1335
      #9  0x000000003f0d6d24 in handle_one_connection (arg=0x10009032410) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/sql_connect.cc:1241
      #10 0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008a7fe60) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #11 0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #12 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 22 (Thread 0x3fff5dfff0b0 (LWP 14953)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff5dffe4d0, mp=0x3fff5dffe508, file=0x3fe5e608 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1149) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f54d630 in inline_mysql_cond_wait (that=0x3fff5dffe4d0, mutex=0x3fff5dffe508, src_file=0x3fe60380 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/handler/ha_innodb.cc", src_line=341) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1149
      #3  0x000000003f5544e4 in thd_destructor_proxy () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/handler/ha_innodb.cc:341
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008cbde70) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 21 (Thread 0x3fff68fff0b0 (LWP 14941)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f66132c in os_event::wait (this=0x10008afc930) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:166
      #2  0x000000003f6608dc in os_event::wait_low (this=0x10008afc930, reset_sig_count=10) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:336
      #3  0x000000003f660eb8 in os_event_wait_low (event=0x10008afc930, reset_sig_count=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:535
      #4  0x000000003f78e810 in srv_resume_thread (slot=0x40538fb8 <srv_sys+440>, sig_count=0, wait=true, timeout_usec=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:938
      #5  0x000000003f7938e4 in srv_worker_thread (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:2604
      #6  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #7  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 20 (Thread 0x3fff69fff0b0 (LWP 14939)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f660714 in os_event::timed_wait (this=0x10008c95b80, abstime=0x3fff69ffe2f0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:286
      #2  0x000000003f660b20 in os_event::wait_time_low (this=0x10008c95b80, time_in_usec=5000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:413
      #3  0x000000003f660e68 in os_event_wait_time_low (event=0x10008c95b80, time_in_usec=5000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:518
      #4  0x000000003f8200bc in ib_wqueue_timedwait (wq=0x10008c82bd0, wait_in_usecs=5000000) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/ut/ut0wqueue.cc:163
      #5  0x000000003f9a80f0 in fts_optimize_thread (arg=0x10008c82bd0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fts/fts0opt.cc:3032
      #6  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #7  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 19 (Thread 0x3fff6a7ff0b0 (LWP 14938)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f660714 in os_event::timed_wait (this=0x10008c4d650, abstime=0x3fff6a7fe540) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:286
      #2  0x000000003f660b20 in os_event::wait_time_low (this=0x10008c4d650, time_in_usec=10000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:413
      #3  0x000000003f660e68 in os_event_wait_time_low (event=0x10008c4d650, time_in_usec=10000000, reset_sig_count=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:518
      #4  0x000000003f92eeb8 in dict_stats_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/dict/dict0stats_bg.cc:458
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 18 (Thread 0x3fff784880b0 (LWP 15154)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008a78, mp=0x3fff1c0089c8, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008a78, mutex=0x3fff1c0089c8, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1580) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f174990 in rpl_parallel_change_thread_count (pool=0x40721df0 <global_rpl_thread_pool>, new_count=12, force=false) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1580
      #4  0x000000003f174c5c in rpl_parallel_activate_pool (pool=0x40721df0 <global_rpl_thread_pool>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1631
      #5  0x000000003ee57734 in handle_slave_sql (arg=0x10009090be0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc:4900
      #6  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1402b250) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #7  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #8  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 17 (Thread 0x3fff71fff0b0 (LWP 14914)):
      #0  0x00003fff7f3e0998 in .__io_getevents_0_4 () from /lib64/libaio.so.1
      #1  0x00003fff7f3e09f8 in .io_getevents () from /lib64/libaio.so.1
      #2  0x000000003f64f41c in LinuxAIOHandler::collect (this=0x3fff71ffe2c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:1893
      #3  0x000000003f64f990 in LinuxAIOHandler::poll (this=0x3fff71ffe2c0, m1=0x3fff71ffe400, m2=0x3fff71ffe408, request=0x3fff71ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2038
      #4  0x000000003f64fb1c in os_aio_linux_handler (global_segment=4, m1=0x3fff71ffe400, m2=0x3fff71ffe408, request=0x3fff71ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2092
      #5  0x000000003f655744 in os_aio_handler (segment=4, m1=0x3fff71ffe400, m2=0x3fff71ffe408, request=0x3fff71ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:5720
      #6  0x000000003f94ea68 in fil_aio_wait (segment=4) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fil/fil0fil.cc:5325
      #7  0x000000003f79830c in io_handler_thread (arg=0x40787cf0 <n+32>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0start.cc:343
      #8  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #9  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 16 (Thread 0x3fff6b7ff0b0 (LWP 14924)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f660714 in os_event::timed_wait (this=0x10008afcab0, abstime=0x3fff6b7fe510) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:286
      #2  0x000000003f660b20 in os_event::wait_time_low (this=0x10008afcab0, time_in_usec=5000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:413
      #3  0x000000003f660e68 in os_event_wait_time_low (event=0x10008afcab0, time_in_usec=5000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:518
      #4  0x000000003f791060 in srv_monitor_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0srv.cc:1757
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 15 (Thread 0x3fff782480b0 (LWP 15159)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008050, mp=0x3fff1c007fa0, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008050, mutex=0x3fff1c007fa0, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c007f98) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c0094d0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 14 (Thread 0x3fff781e80b0 (LWP 15160)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008258, mp=0x3fff1c0081a8, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008258, mutex=0x3fff1c0081a8, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1054) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172f64 in handle_rpl_parallel_thread (arg=0x3fff1c0081a0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1054
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c009c20) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 13 (Thread 0x3fff72fff0b0 (LWP 14912)):
      #0  0x00003fff7f3e0998 in .__io_getevents_0_4 () from /lib64/libaio.so.1
      #1  0x00003fff7f3e09f8 in .io_getevents () from /lib64/libaio.so.1
      #2  0x000000003f64f41c in LinuxAIOHandler::collect (this=0x3fff72ffe2c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:1893
      #3  0x000000003f64f990 in LinuxAIOHandler::poll (this=0x3fff72ffe2c0, m1=0x3fff72ffe400, m2=0x3fff72ffe408, request=0x3fff72ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2038
      #4  0x000000003f64fb1c in os_aio_linux_handler (global_segment=2, m1=0x3fff72ffe400, m2=0x3fff72ffe408, request=0x3fff72ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2092
      #5  0x000000003f655744 in os_aio_handler (segment=2, m1=0x3fff72ffe400, m2=0x3fff72ffe408, request=0x3fff72ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:5720
      #6  0x000000003f94ea68 in fil_aio_wait (segment=2) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fil/fil0fil.cc:5325
      #7  0x000000003f79830c in io_handler_thread (arg=0x40787ce0 <n+16>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0start.cc:343
      #8  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #9  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 12 (Thread 0x3fff717ff0b0 (LWP 14915)):
      #0  0x00003fff7f3e0998 in .__io_getevents_0_4 () from /lib64/libaio.so.1
      #1  0x00003fff7f3e09f8 in .io_getevents () from /lib64/libaio.so.1
      #2  0x000000003f64f41c in LinuxAIOHandler::collect (this=0x3fff717fe2c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:1893
      #3  0x000000003f64f990 in LinuxAIOHandler::poll (this=0x3fff717fe2c0, m1=0x3fff717fe400, m2=0x3fff717fe408, request=0x3fff717fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2038
      #4  0x000000003f64fb1c in os_aio_linux_handler (global_segment=5, m1=0x3fff717fe400, m2=0x3fff717fe408, request=0x3fff717fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2092
      #5  0x000000003f655744 in os_aio_handler (segment=5, m1=0x3fff717fe400, m2=0x3fff717fe408, request=0x3fff717fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:5720
      #6  0x000000003f94ea68 in fil_aio_wait (segment=5) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fil/fil0fil.cc:5325
      #7  0x000000003f79830c in io_handler_thread (arg=0x40787cf8 <n+40>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0start.cc:343
      #8  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #9  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 11 (Thread 0x3fff70fff0b0 (LWP 14916)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f660714 in os_event::timed_wait (this=0x10008afcbb0, abstime=0x3fff70ffe290) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:286
      #2  0x000000003f660b20 in os_event::wait_time_low (this=0x10008afcbb0, time_in_usec=1000000, reset_sig_count=2) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:413
      #3  0x000000003f660e68 in os_event_wait_time_low (event=0x10008afcbb0, time_in_usec=1000000, reset_sig_count=2) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:518
      #4  0x000000003f8baed4 in pc_sleep_if_needed (next_loop_time=1516337257920, sig_count=2, cur_time=1516337256920) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/buf/buf0flu.cc:2718
      #5  0x000000003f8bc5f8 in buf_flush_page_cleaner_coordinator () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/buf/buf0flu.cc:3214
      #6  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #7  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 10 (Thread 0x3fff73fff0b0 (LWP 14910)):
      #0  0x00003fff7f3e0998 in .__io_getevents_0_4 () from /lib64/libaio.so.1
      #1  0x00003fff7f3e09f8 in .io_getevents () from /lib64/libaio.so.1
      #2  0x000000003f64f41c in LinuxAIOHandler::collect (this=0x3fff73ffe2c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:1893
      #3  0x000000003f64f990 in LinuxAIOHandler::poll (this=0x3fff73ffe2c0, m1=0x3fff73ffe400, m2=0x3fff73ffe408, request=0x3fff73ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2038
      #4  0x000000003f64fb1c in os_aio_linux_handler (global_segment=0, m1=0x3fff73ffe400, m2=0x3fff73ffe408, request=0x3fff73ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2092
      #5  0x000000003f655744 in os_aio_handler (segment=0, m1=0x3fff73ffe400, m2=0x3fff73ffe408, request=0x3fff73ffe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:5720
      #6  0x000000003f94ea68 in fil_aio_wait (segment=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fil/fil0fil.cc:5325
      #7  0x000000003f79830c in io_handler_thread (arg=0x40787cd0 <n>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0start.cc:343
      #8  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #9  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 9 (Thread 0x3fff707ff0b0 (LWP 14922)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003f660714 in os_event::timed_wait (this=0x10008c39970, abstime=0x3fff707fe530) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:286
      #2  0x000000003f660b20 in os_event::wait_time_low (this=0x10008c39970, time_in_usec=1000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:413
      #3  0x000000003f660e68 in os_event_wait_time_low (event=0x10008c39970, time_in_usec=1000000, reset_sig_count=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0event.cc:518
      #4  0x000000003f61d09c in lock_wait_timeout_thread () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/lock/lock0wait.cc:547
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 8 (Thread 0x3fff727ff0b0 (LWP 14913)):
      #0  0x00003fff7f3e0998 in .__io_getevents_0_4 () from /lib64/libaio.so.1
      #1  0x00003fff7f3e09f8 in .io_getevents () from /lib64/libaio.so.1
      #2  0x000000003f64f41c in LinuxAIOHandler::collect (this=0x3fff727fe2c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:1893
      #3  0x000000003f64f990 in LinuxAIOHandler::poll (this=0x3fff727fe2c0, m1=0x3fff727fe400, m2=0x3fff727fe408, request=0x3fff727fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2038
      #4  0x000000003f64fb1c in os_aio_linux_handler (global_segment=3, m1=0x3fff727fe400, m2=0x3fff727fe408, request=0x3fff727fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2092
      #5  0x000000003f655744 in os_aio_handler (segment=3, m1=0x3fff727fe400, m2=0x3fff727fe408, request=0x3fff727fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:5720
      #6  0x000000003f94ea68 in fil_aio_wait (segment=3) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fil/fil0fil.cc:5325
      #7  0x000000003f79830c in io_handler_thread (arg=0x40787ce8 <n+24>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0start.cc:343
      #8  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #9  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 7 (Thread 0x3fff5c7880b0 (LWP 15167)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c009090, mp=0x3fff1c008fe0, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c009090, mutex=0x3fff1c008fe0, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1024) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172e34 in handle_rpl_parallel_thread (arg=0x3fff1c008fd8) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1024
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c00afa0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 6 (Thread 0x3fff737ff0b0 (LWP 14911)):
      #0  0x00003fff7f3e0998 in .__io_getevents_0_4 () from /lib64/libaio.so.1
      #1  0x00003fff7f3e09f8 in .io_getevents () from /lib64/libaio.so.1
      #2  0x000000003f64f41c in LinuxAIOHandler::collect (this=0x3fff737fe2c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:1893
      #3  0x000000003f64f990 in LinuxAIOHandler::poll (this=0x3fff737fe2c0, m1=0x3fff737fe400, m2=0x3fff737fe408, request=0x3fff737fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2038
      #4  0x000000003f64fb1c in os_aio_linux_handler (global_segment=1, m1=0x3fff737fe400, m2=0x3fff737fe408, request=0x3fff737fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:2092
      #5  0x000000003f655744 in os_aio_handler (segment=1, m1=0x3fff737fe400, m2=0x3fff737fe408, request=0x3fff737fe438) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/os/os0file.cc:5720
      #6  0x000000003f94ea68 in fil_aio_wait (segment=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/fil/fil0fil.cc:5325
      #7  0x000000003f79830c in io_handler_thread (arg=0x40787cd8 <n+8>) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/innobase/srv/srv0start.cc:343
      #8  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #9  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 5 (Thread 0x3fff5c7e80b0 (LWP 15166)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008e88, mp=0x3fff1c008dd8, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008e88, mutex=0x3fff1c008dd8, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1024) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172e34 in handle_rpl_parallel_thread (arg=0x3fff1c008dd0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1024
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c009c20) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 4 (Thread 0x3fff7a22f0b0 (LWP 14902)):
      #0  0x00003fff7f4b1b84 in .pthread_cond_timedwait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc591f4 in safe_cond_timedwait (cond=0x40fb2ba8 <COND_timer>, mp=0x40fb2af8 <LOCK_timer>, abstime=0x3fff7a22e5b0, file=0x40001558 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1175) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:545
      #2  0x000000003fc5a91c in inline_mysql_cond_timedwait (that=0x40fb2ba8 <COND_timer>, mutex=0x40fb2af8 <LOCK_timer>, abstime=0x3fff7a22e5b0, src_file=0x400015c8 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_timer.c", src_line=292) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1175
      #3  0x000000003fc5b890 in timer_handler (arg=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_timer.c:292
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x10008a7d480) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 3 (Thread 0x3fff787280b0 (LWP 15153)):
      #0  0x000000003ee008e0 in 00000018.plt_call.pthread_getspecific@@GLIBC_2.3 ()
      #1  0x000000003fbdaf4c in get_thread_file_descriptor_locker_v1 (state=0x3fff78725928, file=72, op=PSI_FILE_TELL) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:2981
      #2  0x000000003fc1ec34 in inline_mysql_file_tell (src_file=0x3fffa478 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/mf_iocache.c", src_line=1929, file=72, flags=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_file.h:1244
      #3  0x000000003fc22d0c in my_b_flush_io_cache (info=0x10009093118, need_append_buffer_lock=1) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/mf_iocache.c:1929
      #4  0x000000003f3f55d4 in MYSQL_BIN_LOG::flush_and_sync (this=0x10009092d80, synced=0x0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/log.cc:5352
      #5  0x000000003f3f53d4 in MYSQL_BIN_LOG::write_event_buffer (this=0x10009092d80, buf=0x3fff18010351 "'\275GS\031\001", len=49) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/log.cc:5335
      #6  0x000000003ee5cac0 in queue_event (mi=0x10009090be0, buf=0x3fff18010351 "'\275GS\031\001", event_len=49) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc:6493
      #7  0x000000003ee56590 in handle_slave_io (arg=0x10009090be0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/slave.cc:4550
      #8  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1402b040) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #9  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #10 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 2 (Thread 0x3fff5c8480b0 (LWP 15165)):
      #0  0x00003fff7f4b17a0 in .pthread_cond_wait () from /lib64/power8/libpthread.so.0
      #1  0x000000003fc58e84 in safe_cond_wait (cond=0x3fff1c008c80, mp=0x3fff1c008bd0, file=0x3fd9d248 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h", line=1138) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:491
      #2  0x000000003f16fb44 in inline_mysql_cond_wait (that=0x3fff1c008c80, mutex=0x3fff1c008bd0, src_file=0x3fd9d4f0 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc", src_line=1024) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:1138
      #3  0x000000003f172e34 in handle_rpl_parallel_thread (arg=0x3fff1c008bc8) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:1024
      #4  0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c00afa0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #5  0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #6  0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
       
      Thread 1 (Thread 0x3fff780680b0 (LWP 15164)):
      #0  0x000000003fc843f8 in _db_enter_ (_func_=0x3fffed48 "my_getwd", _file_=0x3fffed58 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_getwd.c", _line_=50, _stack_frame_=0x3fff78065fb0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/dbug/dbug.c:1110
      #1  0x000000003fc433bc in my_getwd (buf=0x3fff780660b8 "", size=80, MyFlags=0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_getwd.c:50
      #2  0x000000003f26a568 in handle_fatal_signal (sig=11) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/signal_handler.cc:302
      #3  <signal handler called>
      #4  0x000000003fc843f8 in _db_enter_ (_func_=0x40000c60 "safe_mutex_init", _file_=0x40000c70 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c", _line_=188, _stack_frame_=0x3fff780672a0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/dbug/dbug.c:1110
      #5  0x000000003fc580fc in safe_mutex_init (mp=0x3fff78000050, attr=0x40fb6444 <my_fast_mutexattr>, name=0x40000320 "&var->mutex", file=0x40000228 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c", line=109) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/thr_mutex.c:188
      #6  0x000000003fc4d234 in inline_mysql_mutex_init (key=75, that=0x3fff78000050, attr=0x40fb6444 <my_fast_mutexattr>, src_name=0x40000320 "&var->mutex", src_file=0x40000228 "/home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c", src_line=109) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/include/mysql/psi/mysql_thread.h:619
      #7  0x000000003fc4dd00 in my_thread_init_thr_mutex (var=0x3fff78000010) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c:109
      #8  0x000000003fc4e2c4 in my_thread_init () at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/mysys/my_thr_init.c:302
      #9  0x000000003f172c34 in handle_rpl_parallel_thread (arg=0x3fff1c0089c0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/sql/rpl_parallel.cc:991
      #10 0x000000003fbd7ba8 in pfs_spawn_thread (arg=0x3fff1c00aac0) at /home/buildbot/maria-slave/power8-vlp03-bintar-debug/build/storage/perfschema/pfs.cc:1862
      #11 0x00003fff7f4ac23c in .start_thread () from /lib64/power8/libpthread.so.0
      #12 0x00003fff7ec092a4 in .__clone () from /lib64/power8/libc.so.6
      

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              Assignee:
              Elkin Andrei Elkin
              Reporter:
              elenst Elena Stepanova
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                Updated:

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