(gdb) thread apply all bt

Thread  (Thread 0x7f5430627940 (LWP )):

#  0x00007f5497db1019 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.

#  0x0000000000baaa63 in os_cond_wait (cond=0x42b5d40, fast_mutex=0x42b5d00) at /usr/src/mysql-5.6./storage/innobase/os/os0sync.cc:

#  0x0000000000baaadf in os_event_wait_low (event=0x42b5d00, reset_sig_count=) at /usr/src/mysql-5.6./storage/innobase/os/os0sync.cc:

#  0x0000000000c6ff5d in sync_array_wait_event (arr=0x1943d60, index=) at /usr/src/mysql-5.6./storage/innobase/sync/sync0arr.cc:

#  0x0000000000c71bbe in rw_lock_s_lock_spin (lock=0x7f543a683530, pass=, file_name=0x1071be0 "/usr/src/mysql-5.6.28/storage/innobase/buf/buf0flu.cc", line=) at /usr/src/mysql-5.6./storage/innobase/sync/sync0rw.cc:

#  0x0000000000cf9c64 in rw_lock_s_lock_func (lock=0x7f543a683530, pass=, file_name=0x1071be0 "/usr/src/mysql-5.6.28/storage/innobase/buf/buf0flu.cc", line=) at /usr/src/mysql-5.6./storage/innobase/include/sync0rw.ic:

#  0x0000000000cf9d10 in pfs_rw_lock_s_lock_func (lock=0x7f543a683530, pass=, file_name=0x1071be0 "/usr/src/mysql-5.6.28/storage/innobase/buf/buf0flu.cc", line=) at /usr/src/mysql-5.6./storage/innobase/include/sync0rw.ic:

#  0x0000000000cfb7a4 in buf_flush_page (buf_pool=0x19a61a8, bpage=0x7f543a683400, flush_type=BUF_FLUSH_LIST, sync=false) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

#  0x0000000000cfbb7c in buf_flush_try_neighbors (space=, offset=, flush_type=BUF_FLUSH_LIST, n_flushed=, n_to_flush=) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

#  0x0000000000cfbe60 in buf_flush_page_and_try_neighbors (bpage=0x7f543a683400, flush_type=BUF_FLUSH_LIST, n_to_flush=, count=0x7f5430626f70) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

# 0x0000000000cfc453 in buf_do_flush_list_batch (buf_pool=0x19a61a8, min_n=, lsn_limit=) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

# 0x0000000000cfc833 in buf_flush_batch (buf_pool=0x19a61a8, flush_type=BUF_FLUSH_LIST, min_n=, lsn_limit=) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

# 0x0000000000cfcc88 in buf_flush_list (min_n=, lsn_limit=, n_processed=0x7f5430627068) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

# 0x0000000000cfcdf5 in page_cleaner_do_flush_batch (n_to_flush=, lsn_limit=) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

# 0x0000000000cfd85f in buf_flush_page_cleaner_thread (arg=0x0) at /usr/src/mysql-5.6./storage/innobase/buf/buf0flu.cc:

# 0x00007f5497dac83d in start_thread () from /lib64/libpthread.so.

# 0x00007f5497259fdd in clone () from /lib64/libc.so.

# 0x0000000000000000 in ?? ()

Thread  (Thread 0x7f542e5e1940 (LWP )):

#  0x0000000000c73635 in sync_thread_levels_g (arr=0x4ab7330, limit=, warn=) at /usr/src/mysql-5.6./storage/innobase/sync/sync0sync.cc:

#  0x0000000000c7456d in sync_thread_add_level (latch=0x7f5442ed5cb0, level=, relock=) at /usr/src/mysql-5.6./storage/innobase/sync/sync0sync.cc:

#  0x0000000000c74f2c in mutex_set_debug_info (mutex=0x7f5442ed5cb0, file_name=0x106d580 "/usr/src/mysql-5.6.28/storage/innobase/buf/buf0buf.cc", line=) at /usr/src/mysql-5.6./storage/innobase/sync/sync0sync.cc:

#  0x0000000000ce43c5 in mutex_enter_func (mutex=0x7f5442ed5cb0, file_name=0x106d580 "/usr/src/mysql-5.6.28/storage/innobase/buf/buf0buf.cc", line=) at /usr/src/mysql-5.6./storage/innobase/include/sync0sync.ic:

#  0x0000000000ce4478 in pfs_mutex_enter_func (mutex=0x7f5442ed5cb0, file_name=0x106d580 "/usr/src/mysql-5.6.28/storage/innobase/buf/buf0buf.cc", line=) at /usr/src/mysql-5.6./storage/innobase/include/sync0sync.ic:

#  0x0000000000ce6f0f in buf_pool_validate_instance (buf_pool=0x19a5d38) at /usr/src/mysql-5.6./storage/innobase/buf/buf0buf.cc:

#  0x0000000000ce7d58 in buf_validate () at /usr/src/mysql-5.6./storage/innobase/buf/buf0buf.cc:

#  0x0000000000ceedc0 in buf_page_get_gen (space=, zip_size=, offset=, rw_latch=, guess=0x0, mode=, file=0x10862e0 "/usr/src/mysql-5.6.28/storage/innobase/fsp/fsp0fsp.cc", line=, mtr=0x7f542e5dd6a0) at /usr/src/mysql-5.6./storage/innobase/buf/buf0buf.cc:

#  0x0000000000d5a2dd in fsp_get_space_header (id=, zip_size=, mtr=0x7f542e5dd6a0) at /usr/src/mysql-5.6./storage/innobase/fsp/fsp0fsp.cc:

#  0x0000000000d60d37 in fsp_reserve_free_extents (n_reserved=0x7f542e5dd5f0, space=, n_ext=, alloc_type=, mtr=0x7f542e5dd6a0) at /usr/src/mysql-5.6./storage/innobase/fsp/fsp0fsp.cc:

# 0x0000000000ccb028 in btr_cur_pessimistic_delete (err=0x7f542e5ddb84, has_reserved_extents=, cursor=0x4943f78, flags=, rb_ctx=RB_NORMAL, mtr=0x7f542e5dd6a0) at /usr/src/mysql-5.6./storage/innobase/btr/btr0cur.cc:

# 0x0000000000d94dcc in row_undo_ins_remove_clust_rec (node=0x4943f08) at /usr/src/mysql-5.6./storage/innobase/row/row0uins.cc:

# 0x0000000000d950c8 in row_undo_ins (node=0x4943f08) at /usr/src/mysql-5.6./storage/innobase/row/row0uins.cc:

# 0x0000000000c4c9d1 in row_undo (node=0x4943f08, thr=0x486e500) at /usr/src/mysql-5.6./storage/innobase/row/row0undo.cc:

# 0x0000000000c4cb06 in row_undo_step (thr=0x486e500) at /usr/src/mysql-5.6./storage/innobase/row/row0undo.cc:

# 0x0000000000bd8a99 in que_thr_step (thr=0x486e500) at /usr/src/mysql-5.6./storage/innobase/que/que0que.cc:

# 0x0000000000bd8cb4 in que_run_threads_low (thr=0x486e500) at /usr/src/mysql-5.6./storage/innobase/que/que0que.cc:

# 0x0000000000bd8e5c in que_run_threads (thr=0x486e500) at /usr/src/mysql-5.6./storage/innobase/que/que0que.cc:

# 0x0000000000c8c5e4 in trx_rollback_to_savepoint_low (trx=0x495b098, savept=0x495b410) at /usr/src/mysql-5.6./storage/innobase/trx/trx0roll.cc:

# 0x0000000000c8cdea in trx_rollback_to_savepoint (trx=0x495b098, savept=0x495b410) at /usr/src/mysql-5.6./storage/innobase/trx/trx0roll.cc:

# 0x0000000000c8d33d in trx_rollback_last_sql_stat_for_mysql (trx=0x495b098) at /usr/src/mysql-5.6./storage/innobase/trx/trx0roll.cc:

# 0x0000000000b329de in innobase_rollback (hton=0x194f7c0, thd=0x1934550, rollback_trx=false) at /usr/src/mysql-5.6./storage/innobase/handler/ha_innodb.cc:

# 0x0000000000625cd2 in ha_rollback_low (thd=0x1934550, all=false) at /usr/src/mysql-5.6./sql/handler.cc:

# 0x0000000000a4bd26 in MYSQL_BIN_LOG::rollback (this=0x180f380 <mysql_bin_log>, thd=0x1934550, all=false) at /usr/src/mysql-5.6./sql/binlog.cc:

# 0x0000000000625b51 in ha_rollback_trans (thd=0x1934550, all=false) at /usr/src/mysql-5.6./sql/handler.cc:

# 0x000000000089eb79 in trans_rollback_stmt (thd=0x1934550) at /usr/src/mysql-5.6./sql/transaction.cc:

# 0x00000000007d6090 in mysql_execute_command (thd=0x1934550) at /usr/src/mysql-5.6./sql/sql_parse.cc:

# 0x00000000007d67c4 in mysql_parse (thd=0x1934550, rawbuf=0x49b8380 "insert into big_table select * from big_table", length=, parser_state=0x7f542e5e0910) at /usr/src/mysql-5.6./sql/sql_parse.cc:

# 0x00000000007d83f4 in dispatch_command (command=COM_QUERY, thd=0x1934550, packet=0x48e8fb1 "insert into big_table select * from big_table", packet_length=) at /usr/src/mysql-5.6./sql/sql_parse.cc:

# 0x00000000007d9c80 in do_command (thd=0x1934550) at /usr/src/mysql-5.6./sql/sql_parse.cc:

# 0x000000000078e3fb in do_handle_one_connection (thd_arg=0x1934550) at /usr/src/mysql-5.6./sql/sql_connect.cc:

# 0x000000000078e4c1 in handle_one_connection (arg=0x1934550) at /usr/src/mysql-5.6./sql/sql_connect.cc:

# 0x0000000000b11172 in pfs_spawn_thread (arg=0x47889a0) at /usr/src/mysql-5.6./storage/perfschema/pfs.cc:

# 0x00007f5497dac83d in start_thread () from /lib64/libpthread.so.

# 0x00007f5497259fdd in clone () from /lib64/libc.so.

# 0x0000000000000000 in ?? ()
Thread  (Thread 0x7f542e5a0940 (LWP )):

#  0x00007f5497db1280 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.

#  0x0000000000abe163 in safe_cond_timedwait (cond=0x49523e8, mp=0x4952378, abstime=0x7f542e59dba0, file=0xf07240 "/usr/src/mysql-5.6.28/include/mysql/psi/mysql_thread.h", line=) at /usr/src/mysql-5.6./mysys/thr_mutex.c:

#  0x000000000070497e in inline_mysql_cond_timedwait (that=0x49523e8, mutex=0x4952378, abstime=0x7f542e59dba0, src_file=0xf070a8 "/usr/src/mysql-5.6.28/sql/mdl.cc", src_line=) at /usr/src/mysql-5.6./include/mysql/psi/mysql_thread.h:

#  0x0000000000704a42 in MDL_wait::timed_wait (this=0x4952378, owner=0x4952290, abs_timeout=0x7f542e59dba0, set_status_on_timeout=false, wait_state_name=0x14f4b30 <MDL_key::m_namespace_to_wait_state_name+>) at /usr/src/mysql-5.6./sql/mdl.cc:

#4  0x0000000000706a0d in MDL_context::acquire_lock (this=0x4952378, mdl_request=0x4891f90, lock_wait_timeout=31536000) at /usr/src/mysql-5.6.28/sql/mdl.cc:2246

#5  0x00000000007070d4 in MDL_context::acquire_locks (this=0x4952378, mdl_requests=0x7f542e59df20, lock_wait_timeout=) at /usr/src/mysql-5.6./sql/mdl.cc:

#  0x000000000075fd46 in lock_table_names (thd=0x4952290, tables_start=0x4891bf0, tables_end=0x0, lock_wait_timeout=, flags=) at /usr/src/mysql-5.6./sql/sql_base.cc:

#  0x0000000000843260 in mysql_rm_table (thd=0x4952290, tables=0x4891bf0, if_exists= '\000', drop_temporary= '\000') at /usr/src/mysql-5.6./sql/sql_table.cc:

#  0x00000000007d1e63 in mysql_execute_command (thd=0x4952290) at /usr/src/mysql-5.6./sql/sql_parse.cc:

#9  0x00000000007d67c4 in mysql_parse (thd=0x4952290, rawbuf=0x4891b00 "drop table big_table", length=20, parser_state=0x7f542e59f910) at /usr/src/mysql-5.6.28/sql/sql_parse.cc:6386

# 0x00000000007d83f4 in dispatch_command (command=COM_QUERY, thd=0x4952290, packet=0x49bc971 "drop table big_table", packet_length=) at /usr/src/mysql-5.6./sql/sql_parse.cc:

# 0x00000000007d9c80 in do_command (thd=0x4952290) at /usr/src/mysql-5.6./sql/sql_parse.cc:

# 0x000000000078e3fb in do_handle_one_connection (thd_arg=0x496bfa0) at /usr/src/mysql-5.6./sql/sql_connect.cc:

# 0x000000000078e4c1 in handle_one_connection (arg=0x496bfa0) at /usr/src/mysql-5.6./sql/sql_connect.cc:

# 0x0000000000b11172 in pfs_spawn_thread (arg=0x49200f0) at /usr/src/mysql-5.6./storage/perfschema/pfs.cc:

# 0x00007f5497dac83d in start_thread () from /lib64/libpthread.so.

# 0x00007f5497259fdd in clone () from /lib64/libc.so.

# 0x0000000000000000 in ?? ()

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