Thread 19 (Thread 0x7ff7e67fe700 (LWP 2897022)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 18 (Thread 0x7ff8082aa700 (LWP 2897046)): #0 0x00007ff80b2f4aff in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf6ac8af in vio_io_wait () No symbol table info available. #2 0x00005648cf6aca24 in vio_socket_io_wait () No symbol table info available. #3 0x00005648cf6acb03 in vio_read () No symbol table info available. #4 0x00005648cf62d0b5 in ?? () No symbol table info available. #5 0x00005648cf62e460 in my_net_read_packet_reallen () No symbol table info available. #6 0x00005648cf62e561 in my_net_read_packet () No symbol table info available. #7 0x00005648cf2eb9a2 in do_command(THD*) () No symbol table info available. #8 0x00005648cf3f1341 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #9 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #10 0x00005648cf74fc66 in ?? () No symbol table info available. #11 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #12 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 17 (Thread 0x7ff80817e700 (LWP 2898143)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf3f1490 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #2 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #3 0x00005648cf74fc66 in ?? () No symbol table info available. #4 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #5 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 16 (Thread 0x7ff8082f5700 (LWP 2897031)): #0 0x00007ff80b719376 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf2dbdeb in handle_manager () No symbol table info available. #2 0x00005648cf74fc66 in ?? () No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 15 (Thread 0x7ff808214700 (LWP 2897327)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf3f1490 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #2 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #3 0x00005648cf74fc66 in ?? () No symbol table info available. #4 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #5 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 14 (Thread 0x7ff808340700 (LWP 2897030)): #0 0x00007ff80b226322 in sigtimedwait () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf216654 in signal_hand () No symbol table info available. #2 0x00005648cf74fc66 in ?? () No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 13 (Thread 0x7ff7cffff700 (LWP 2897027)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 12 (Thread 0x7ff7f5d1a700 (LWP 2897020)): #0 0x00007ff80b2fa89d in syscall () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cfa37298 in tpool::aio_linux::getevent_thread_routine(tpool::aio_linux*) () No symbol table info available. #2 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 11 (Thread 0x7ff808f63700 (LWP 2897018)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf6e6131 in ?? () No symbol table info available. #2 0x00005648cf6de345 in ?? () No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 10 (Thread 0x7ff7cf7fe700 (LWP 2897028)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 9 (Thread 0x7ff7e6fff700 (LWP 2897021)): #0 0x00007ff80b719376 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf97c50a in ?? () No symbol table info available. #2 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #3 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 8 (Thread 0x7ff8081c9700 (LWP 2897521)): #0 0x00007ff80b2f4aff in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf6ac8af in vio_io_wait () No symbol table info available. #2 0x00005648cf6aca24 in vio_socket_io_wait () No symbol table info available. #3 0x00005648cf6acb03 in vio_read () No symbol table info available. #4 0x00005648cf62d0b5 in ?? () No symbol table info available. #5 0x00005648cf62e460 in my_net_read_packet_reallen () No symbol table info available. #6 0x00005648cf62e561 in my_net_read_packet () No symbol table info available. #7 0x00005648cf2eb9a2 in do_command(THD*) () No symbol table info available. #8 0x00005648cf3f1341 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #9 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #10 0x00005648cf74fc66 in ?? () No symbol table info available. #11 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #12 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 7 (Thread 0x7ff7ceffd700 (LWP 2897029)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 6 (Thread 0x7ff7e5ffd700 (LWP 2897024)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 5 (Thread 0x7ff80b048800 (LWP 2897013)): #0 0x00007ff80b2f4aff in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf21eaaf in handle_connections_sockets() () No symbol table info available. #2 0x00005648cf21f911 in mysqld_main(int, char**) () No symbol table info available. #3 0x00007ff80b2060b3 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #4 0x00005648cf21401e in _start () No symbol table info available. Thread 4 (Thread 0x7ff7e57fc700 (LWP 2897025)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 3 (Thread 0x7ff7e4ffb700 (LWP 2897026)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 2 (Thread 0x7ff80aef6700 (LWP 2897015)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfaa7ee2 in ?? () No symbol table info available. #2 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #3 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 1 (Thread 0x7ff80825f700 (LWP 2897057)): #0 0x00007ff80b71af08 in pthread_kill () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf4f9710 in handle_fatal_signal () No symbol table info available. #2 No symbol table info available. #3 0x00005648cf18ccae in ?? () No symbol table info available. #4 0x00005648cf640333 in ?? () No symbol table info available. #5 0x00005648cf640c7f in ?? () No symbol table info available. #6 0x00005648cf641141 in SEL_IMERGE::and_sel_tree(RANGE_OPT_PARAM*, SEL_TREE*, SEL_IMERGE*) () No symbol table info available. #7 0x00005648cf6412a4 in ?? () No symbol table info available. #8 0x00005648cf64149d in ?? () No symbol table info available. #9 0x00005648cf6418e2 in Item_cond_and::get_mm_tree(RANGE_OPT_PARAM*, Item**) () No symbol table info available. #10 0x00005648cf648266 in SQL_SELECT::test_quick_select(THD*, Bitmap<64u>, unsigned long long, unsigned long long, bool, bool, bool, bool) () No symbol table info available. #11 0x00005648cf353043 in JOIN::optimize_inner() () No symbol table info available. #12 0x00005648cf353b73 in JOIN::optimize() () No symbol table info available. #13 0x00005648cf353c37 in mysql_select(THD*, TABLE_LIST*, List&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) () No symbol table info available. #14 0x00005648cf354657 in handle_select(THD*, LEX*, select_result*, unsigned long) () No symbol table info available. #15 0x00005648cf2e2f11 in ?? () No symbol table info available. #16 0x00005648cf2f11a7 in mysql_execute_command(THD*) () No symbol table info available. #17 0x00005648cf2dda9f in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () No symbol table info available. #18 0x00005648cf2e965f in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () No symbol table info available. #19 0x00005648cf2eba37 in do_command(THD*) () No symbol table info available. #20 0x00005648cf3f1341 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #21 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #22 0x00005648cf74fc66 in ?? () No symbol table info available. #23 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #24 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 19 (Thread 0x7ff7e67fe700 (LWP 2897022)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 18 (Thread 0x7ff8082aa700 (LWP 2897046)): #0 0x00007ff80b2f4aff in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf6ac8af in vio_io_wait () No symbol table info available. #2 0x00005648cf6aca24 in vio_socket_io_wait () No symbol table info available. #3 0x00005648cf6acb03 in vio_read () No symbol table info available. #4 0x00005648cf62d0b5 in ?? () No symbol table info available. #5 0x00005648cf62e460 in my_net_read_packet_reallen () No symbol table info available. #6 0x00005648cf62e561 in my_net_read_packet () No symbol table info available. #7 0x00005648cf2eb9a2 in do_command(THD*) () No symbol table info available. #8 0x00005648cf3f1341 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #9 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #10 0x00005648cf74fc66 in ?? () No symbol table info available. #11 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #12 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 17 (Thread 0x7ff80817e700 (LWP 2898143)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf3f1490 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #2 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #3 0x00005648cf74fc66 in ?? () No symbol table info available. #4 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #5 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 16 (Thread 0x7ff8082f5700 (LWP 2897031)): #0 0x00007ff80b719376 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf2dbdeb in handle_manager () No symbol table info available. #2 0x00005648cf74fc66 in ?? () No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 15 (Thread 0x7ff808214700 (LWP 2897327)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf3f1490 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #2 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #3 0x00005648cf74fc66 in ?? () No symbol table info available. #4 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #5 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 14 (Thread 0x7ff808340700 (LWP 2897030)): #0 0x00007ff80b226322 in sigtimedwait () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf216654 in signal_hand () No symbol table info available. #2 0x00005648cf74fc66 in ?? () No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 13 (Thread 0x7ff7cffff700 (LWP 2897027)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 12 (Thread 0x7ff7f5d1a700 (LWP 2897020)): #0 0x00007ff80b2fa89d in syscall () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cfa37298 in tpool::aio_linux::getevent_thread_routine(tpool::aio_linux*) () No symbol table info available. #2 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 11 (Thread 0x7ff808f63700 (LWP 2897018)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf6e6131 in ?? () No symbol table info available. #2 0x00005648cf6de345 in ?? () No symbol table info available. #3 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #4 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 10 (Thread 0x7ff7cf7fe700 (LWP 2897028)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 9 (Thread 0x7ff7e6fff700 (LWP 2897021)): #0 0x00007ff80b719376 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf97c50a in ?? () No symbol table info available. #2 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #3 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 8 (Thread 0x7ff8081c9700 (LWP 2897521)): #0 0x00007ff80b2f4aff in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf6ac8af in vio_io_wait () No symbol table info available. #2 0x00005648cf6aca24 in vio_socket_io_wait () No symbol table info available. #3 0x00005648cf6acb03 in vio_read () No symbol table info available. #4 0x00005648cf62d0b5 in ?? () No symbol table info available. #5 0x00005648cf62e460 in my_net_read_packet_reallen () No symbol table info available. #6 0x00005648cf62e561 in my_net_read_packet () No symbol table info available. #7 0x00005648cf2eb9a2 in do_command(THD*) () No symbol table info available. #8 0x00005648cf3f1341 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #9 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #10 0x00005648cf74fc66 in ?? () No symbol table info available. #11 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #12 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 7 (Thread 0x7ff7ceffd700 (LWP 2897029)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 6 (Thread 0x7ff7e5ffd700 (LWP 2897024)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 5 (Thread 0x7ff80b048800 (LWP 2897013)): #0 0x00007ff80b2f4aff in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00005648cf21eaaf in handle_connections_sockets() () No symbol table info available. #2 0x00005648cf21f911 in mysqld_main(int, char**) () No symbol table info available. #3 0x00007ff80b2060b3 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #4 0x00005648cf21401e in _start () No symbol table info available. Thread 4 (Thread 0x7ff7e57fc700 (LWP 2897025)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 3 (Thread 0x7ff7e4ffb700 (LWP 2897026)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfa33c14 in tpool::thread_pool_generic::wait_for_tasks(std::unique_lock&, tpool::worker_data*) () No symbol table info available. #2 0x00005648cfa33f51 in tpool::thread_pool_generic::get_task(tpool::worker_data*, tpool::task**) () No symbol table info available. #3 0x00005648cfa35595 in tpool::thread_pool_generic::worker_main(tpool::worker_data*) () No symbol table info available. #4 0x00007ff80b5f8d84 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 2 (Thread 0x7ff80aef6700 (LWP 2897015)): #0 0x00007ff80b7197b1 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cfaa7ee2 in ?? () No symbol table info available. #2 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #3 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. Thread 1 (Thread 0x7ff80825f700 (LWP 2897057)): #0 0x00007ff80b71af08 in pthread_kill () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00005648cf4f9710 in handle_fatal_signal () No symbol table info available. #2 No symbol table info available. #3 0x00005648cf18ccae in ?? () No symbol table info available. #4 0x00005648cf640333 in ?? () No symbol table info available. #5 0x00005648cf640c7f in ?? () No symbol table info available. #6 0x00005648cf641141 in SEL_IMERGE::and_sel_tree(RANGE_OPT_PARAM*, SEL_TREE*, SEL_IMERGE*) () No symbol table info available. #7 0x00005648cf6412a4 in ?? () No symbol table info available. #8 0x00005648cf64149d in ?? () No symbol table info available. #9 0x00005648cf6418e2 in Item_cond_and::get_mm_tree(RANGE_OPT_PARAM*, Item**) () No symbol table info available. #10 0x00005648cf648266 in SQL_SELECT::test_quick_select(THD*, Bitmap<64u>, unsigned long long, unsigned long long, bool, bool, bool, bool) () No symbol table info available. #11 0x00005648cf353043 in JOIN::optimize_inner() () No symbol table info available. #12 0x00005648cf353b73 in JOIN::optimize() () No symbol table info available. #13 0x00005648cf353c37 in mysql_select(THD*, TABLE_LIST*, List&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) () No symbol table info available. #14 0x00005648cf354657 in handle_select(THD*, LEX*, select_result*, unsigned long) () No symbol table info available. #15 0x00005648cf2e2f11 in ?? () No symbol table info available. #16 0x00005648cf2f11a7 in mysql_execute_command(THD*) () No symbol table info available. #17 0x00005648cf2dda9f in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () No symbol table info available. #18 0x00005648cf2e965f in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () No symbol table info available. #19 0x00005648cf2eba37 in do_command(THD*) () No symbol table info available. #20 0x00005648cf3f1341 in do_handle_one_connection(CONNECT*, bool) () No symbol table info available. #21 0x00005648cf3f17bd in handle_one_connection () No symbol table info available. #22 0x00005648cf74fc66 in ?? () No symbol table info available. #23 0x00007ff80b712609 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #24 0x00007ff80b301293 in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available.