Thread 26 (Thread 0x7f5e8b503300 (LWP 26940)): #0 do_sigwait (sig=0x7f5e8b502828, set=) at ../sysdeps/unix/sysv/linux/sigwait.c:64 #1 __sigwait (set=set@entry=0x7f5e8b502880, sig=sig@entry=0x7f5e8b502828) at ../sysdeps/unix/sysv/linux/sigwait.c:96 #2 0x0000564a97d31293 in signal_hand (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc:3558 #3 0x00007f5e899e76fa in start_thread (arg=0x7f5e8b503300) at pthread_create.c:333 #4 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 25 (Thread 0x7f5e8b54d300 (LWP 26939)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000564a97fd837f in inline_mysql_cond_wait (src_file=0x564a9840dfb8 "/home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/log.cc", src_line=9571, mutex=0x564a98baeb30 , that=0x564a98baeb60 ) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/include/mysql/psi/mysql_thread.h:1149 #2 binlog_background_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/log.cc:9571 #3 0x00007f5e899e76fa in start_thread (arg=0x7f5e8b54d300) at pthread_create.c:333 #4 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 24 (Thread 0x7f5e5ebfc700 (LWP 26938)): #0 0x00007f5e89088d13 in select () at ../sysdeps/unix/syscall-template.S:84 #1 0x0000564a980d0c8b in os_thread_sleep (tm=tm@entry=1000000) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0thread.cc:278 #2 0x0000564a9818b1dd in btr_defragment_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/btr/btr0defragment.cc:758 #3 0x00007f5e899e76fa in start_thread (arg=0x7f5e5ebfc700) at pthread_create.c:333 #4 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 23 (Thread 0x7f5e5f7fd700 (LWP 26937)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a980d053e in os_cond_wait_timed (abstime=0x7f5e5f7fcc20, fast_mutex=0x7f5e87c4ddd0, cond=0x7f5e87c4de08) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:131 #2 os_event_wait_time_low (event=0x7f5e87c4ddd0, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=reset_sig_count@entry=1) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:450 #3 0x0000564a9815f086 in ib_wqueue_timedwait (wq=wq@entry=0x7f5e87c53ce8, wait_in_usecs=wait_in_usecs@entry=5000000) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/ut/ut0wqueue.cc:154 #4 0x0000564a98216416 in fts_optimize_thread (arg=0x7f5e87c53ce8) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fts/fts0opt.cc:3054 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e5f7fd700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 22 (Thread 0x7f5e5fffe700 (LWP 26936)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a980d053e in os_cond_wait_timed (abstime=0x7f5e5fffdc60, fast_mutex=0x7f5e87c4dc10, cond=0x7f5e87c4dc48) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:131 #2 os_event_wait_time_low (event=0x7f5e87c4dc10, time_in_usec=time_in_usec@entry=10000000, reset_sig_count=1, reset_sig_count@entry=0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:450 #3 0x0000564a981da8d3 in dict_stats_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/dict/dict0stats_bg.cc:546 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e5fffe700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 21 (Thread 0x7f5e607ff700 (LWP 26935)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000564a980d03db in os_cond_wait (fast_mutex=0x7f5e87c4c2b0, cond=0x7f5e87c4c2e8) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:167 #2 os_event_wait_low (event=0x7f5e87c4c2b0, reset_sig_count=1, reset_sig_count@entry=0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:362 #3 0x0000564a9819e293 in buf_dump_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/buf/buf0dump.cc:703 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e607ff700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 20 (Thread 0x7f5e617f9700 (LWP 26934)): #0 0x00007f5e89088d13 in select () at ../sysdeps/unix/syscall-template.S:84 #1 0x0000564a980d0c8b in os_thread_sleep (tm=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0thread.cc:278 #2 0x0000564a9819e37e in page_cleaner_sleep_if_needed (next_loop_time=next_loop_time@entry=1470912177810) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/buf/buf0flu.cc:2638 #3 0x0000564a981a4e57 in buf_flush_lru_manager_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/buf/buf0flu.cc:2912 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e617f9700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 19 (Thread 0x7f5e61ffa700 (LWP 26933)): #0 0x00007f5e89088d13 in select () at ../sysdeps/unix/syscall-template.S:84 #1 0x0000564a980d0c8b in os_thread_sleep (tm=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0thread.cc:278 #2 0x0000564a9819e37e in page_cleaner_sleep_if_needed (next_loop_time=next_loop_time@entry=1470912177811) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/buf/buf0flu.cc:2638 #3 0x0000564a981a3e25 in buf_flush_page_cleaner_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/buf/buf0flu.cc:2762 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e61ffa700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 18 (Thread 0x7f5e627fb700 (LWP 26932)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000564a980d03db in os_cond_wait (fast_mutex=0x7f5e87c4c080, cond=0x7f5e87c4c0b8) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:167 #2 os_event_wait_low (event=0x7f5e87c4c080, reset_sig_count=reset_sig_count@entry=1) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:362 #3 0x0000564a98134951 in srv_purge_coordinator_suspend (rseg_history_len=, slot=0x7f5e87c19788) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0srv.cc:3541 #4 srv_purge_coordinator_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0srv.cc:3663 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e627fb700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 17 (Thread 0x7f5e62ffc700 (LWP 26931)): #0 0x00007f5e89088d13 in select () at ../sysdeps/unix/syscall-template.S:84 #1 0x0000564a980d0c8b in os_thread_sleep (tm=tm@entry=1000000) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0thread.cc:278 #2 0x0000564a981332b0 in srv_master_sleep () at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0srv.cc:3181 #3 srv_master_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0srv.cc:3231 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e62ffc700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 16 (Thread 0x7f5e637fd700 (LWP 26930)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a980d053e in os_cond_wait_timed (abstime=0x7f5e637fcca0, fast_mutex=0x7f5e87c4c240, cond=0x7f5e87c4c278) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:131 #2 os_event_wait_time_low (event=0x7f5e87c4c240, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=1) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:450 #3 0x0000564a9813190c in srv_monitor_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0srv.cc:2129 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e637fd700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 15 (Thread 0x7f5e63ffe700 (LWP 26929)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a980d053e in os_cond_wait_timed (abstime=0x7f5e63ffdc10, fast_mutex=0x7f5e87c4c0f0, cond=0x7f5e87c4c128) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:131 #2 os_event_wait_time_low (event=0x7f5e87c4c0f0, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=1) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:450 #3 0x0000564a98131ee4 in srv_error_monitor_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0srv.cc:2405 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e63ffe700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 14 (Thread 0x7f5e647ff700 (LWP 26928)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a980d053e in os_cond_wait_timed (abstime=0x7f5e647fec60, fast_mutex=0x7f5e87c4da50, cond=0x7f5e87c4da88) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:131 #2 os_event_wait_time_low (event=event@entry=0x7f5e87c4da50, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=reset_sig_count@entry=1) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0sync.cc:450 #3 0x0000564a980aa075 in lock_wait_timeout_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/lock/lock0wait.cc:536 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e647ff700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 13 (Thread 0x7f5e65ff6700 (LWP 26927)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c78240) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=9, message1=message1@entry=0x7f5e65ff5d00, message2=message2@entry=0x7f5e65ff5d08, type=type@entry=0x7f5e65ff5d10, space_id=space_id@entry=0x7f5e65ff5d18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=9) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e65ff6700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 12 (Thread 0x7f5e667f7700 (LWP 26926)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c78240) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=8, message1=message1@entry=0x7f5e667f6d00, message2=message2@entry=0x7f5e667f6d08, type=type@entry=0x7f5e667f6d10, space_id=space_id@entry=0x7f5e667f6d18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=8) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e667f7700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 11 (Thread 0x7f5e66ff8700 (LWP 26925)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c78240) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=7, message1=message1@entry=0x7f5e66ff7d00, message2=message2@entry=0x7f5e66ff7d08, type=type@entry=0x7f5e66ff7d10, space_id=space_id@entry=0x7f5e66ff7d18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=7) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e66ff8700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 10 (Thread 0x7f5e677f9700 (LWP 26924)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c78240) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=6, message1=message1@entry=0x7f5e677f8d00, message2=message2@entry=0x7f5e677f8d08, type=type@entry=0x7f5e677f8d10, space_id=space_id@entry=0x7f5e677f8d18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=6) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e677f9700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 9 (Thread 0x7f5e67ffa700 (LWP 26923)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c780b0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=5, message1=message1@entry=0x7f5e67ff9d00, message2=message2@entry=0x7f5e67ff9d08, type=type@entry=0x7f5e67ff9d10, space_id=space_id@entry=0x7f5e67ff9d18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=5) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e67ffa700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 8 (Thread 0x7f5e687fb700 (LWP 26922)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c780b0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=4, message1=message1@entry=0x7f5e687fad00, message2=message2@entry=0x7f5e687fad08, type=type@entry=0x7f5e687fad10, space_id=space_id@entry=0x7f5e687fad18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=4) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e687fb700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7f5e68ffc700 (LWP 26921)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c780b0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=3, message1=message1@entry=0x7f5e68ffbd00, message2=message2@entry=0x7f5e68ffbd08, type=type@entry=0x7f5e68ffbd10, space_id=space_id@entry=0x7f5e68ffbd18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=3) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e68ffc700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7f5e697fd700 (LWP 26920)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c780b0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=2, message1=message1@entry=0x7f5e697fcd00, message2=message2@entry=0x7f5e697fcd08, type=type@entry=0x7f5e697fcd10, space_id=space_id@entry=0x7f5e697fcd18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=2) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e697fd700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7f5e69ffe700 (LWP 26919)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c78060) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=1, message1=message1@entry=0x7f5e69ffdd00, message2=message2@entry=0x7f5e69ffdd08, type=type@entry=0x7f5e69ffdd10, space_id=space_id@entry=0x7f5e69ffdd18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=1) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e69ffe700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7f5e6a7ff700 (LWP 26918)): #0 0x00007f5e8adbe64a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000564a980cf653 in os_aio_linux_collect (seg_size=256, segment=, array=0x7f5e87c781f0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5432 #2 os_aio_linux_handle (global_seg=global_seg@entry=0, message1=message1@entry=0x7f5e6a7fed00, message2=message2@entry=0x7f5e6a7fed08, type=type@entry=0x7f5e6a7fed10, space_id=space_id@entry=0x7f5e6a7fed18) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/os/os0file.cc:5585 #3 0x0000564a981e1a88 in fil_aio_wait (segment=segment@entry=0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/fil/fil0fil.cc:6077 #4 0x0000564a98135a78 in io_handler_thread (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/xtradb/srv/srv0start.cc:545 #5 0x00007f5e899e76fa in start_thread (arg=0x7f5e6a7ff700) at pthread_create.c:333 #6 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7f5e75fff700 (LWP 26917)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a98292d3e in inline_mysql_cond_timedwait (src_file=0x564a984689a0 "/home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/maria/ma_servicethread.c", src_line=116, abstime=0x7f5e75ffec50, mutex=0x564a993ed240 , that=0x564a993ed200 ) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/include/mysql/psi/mysql_thread.h:1186 #2 my_service_thread_sleep (control=control@entry=0x564a98b0ebe0 , sleep_time=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/maria/ma_servicethread.c:115 #3 0x0000564a9828c6d7 in ma_checkpoint_background (arg=0x1e) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/storage/maria/ma_checkpoint.c:708 #4 0x00007f5e899e76fa in start_thread (arg=0x7f5e75fff700) at pthread_create.c:333 #5 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7f5e87bff700 (LWP 26916)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x0000564a9834db96 in inline_mysql_cond_timedwait (that=0x564a993f6580 , mutex=0x564a993f65c0 , src_file=0x564a98471f20 "/home/hartmut/projects/mariadb/releases/mariadb-10.2.1/mysys/thr_timer.c", src_line=292, abstime=0x7f5e87bfecd0) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/include/mysql/psi/mysql_thread.h:1186 #2 timer_handler (arg=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/mysys/thr_timer.c:292 #3 0x00007f5e899e76fa in start_thread (arg=0x7f5e87bff700) at pthread_create.c:333 #4 0x00007f5e89092b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f5e8b559900 (LWP 26915)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000564a97d3105b in inline_mysql_cond_wait (src_file=0x564a98383b88 "/home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc", src_line=6324, mutex=0x564a98b87240 , that=0x564a98b86b40 ) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/include/mysql/psi/mysql_thread.h:1149 #2 bootstrap (file=) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc:6324 #3 0x0000564a97d3ac37 in mysqld_main (argc=14, argv=0x7f5e87c7c4e8) at /home/hartmut/projects/mariadb/releases/mariadb-10.2.1/sql/mysqld.cc:5965 #4 0x00007f5e88fac830 in __libc_start_main (main=0x564a97d1cc10 , argc=11, argv=0x7fff6b209d38, init=, fini=, rtld_fini=, stack_end=0x7fff6b209d28) at ../csu/libc-start.c:291 #5 0x0000564a97d2e669 in _start ()