Thread 29 (Thread 0x2b4ce4a57700 (LWP 8737)): #0 0x00002b4ce42c97fa in sigwaitinfo () from /lib64/libc.so.6 #1 0x0000000000ec138b in timer_notify_thread_func (arg=) at /local/mysql-5.7.16.R2/mysys/posix_timers.c:77 #2 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #3 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 28 (Thread 0x2b4ff1e00700 (LWP 8744)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff1dffdb0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff1dffdb0, m1=m1@entry=0x2b4ff1dffe50, m2=m2@entry=0x2b4ff1dffe58, request=request@entry=0x2b4ff1dffe60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff1dffe60, m2=0x2b4ff1dffe58, m1=0x2b4ff1dffe50, global_segment=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=0, m1=m1@entry=0x2b4ff1dffe50, m2=m2@entry=0x2b4ff1dffe58, request=request@entry=0x2b4ff1dffe60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 27 (Thread 0x2b4ff2001700 (LWP 8745)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2000db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2000db0, m1=m1@entry=0x2b4ff2000e50, m2=m2@entry=0x2b4ff2000e58, request=request@entry=0x2b4ff2000e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2000e60, m2=0x2b4ff2000e58, m1=0x2b4ff2000e50, global_segment=1) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=1, m1=m1@entry=0x2b4ff2000e50, m2=m2@entry=0x2b4ff2000e58, request=request@entry=0x2b4ff2000e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=1) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 26 (Thread 0x2b4ff2202700 (LWP 8746)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2201db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2201db0, m1=m1@entry=0x2b4ff2201e50, m2=m2@entry=0x2b4ff2201e58, request=request@entry=0x2b4ff2201e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2201e60, m2=0x2b4ff2201e58, m1=0x2b4ff2201e50, global_segment=2) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=2, m1=m1@entry=0x2b4ff2201e50, m2=m2@entry=0x2b4ff2201e58, request=request@entry=0x2b4ff2201e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=2) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 25 (Thread 0x2b4ff2403700 (LWP 8747)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2402db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2402db0, m1=m1@entry=0x2b4ff2402e50, m2=m2@entry=0x2b4ff2402e58, request=request@entry=0x2b4ff2402e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2402e60, m2=0x2b4ff2402e58, m1=0x2b4ff2402e50, global_segment=3) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=3, m1=m1@entry=0x2b4ff2402e50, m2=m2@entry=0x2b4ff2402e58, request=request@entry=0x2b4ff2402e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=3) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 24 (Thread 0x2b4ff2604700 (LWP 8748)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2603db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2603db0, m1=m1@entry=0x2b4ff2603e50, m2=m2@entry=0x2b4ff2603e58, request=request@entry=0x2b4ff2603e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2603e60, m2=0x2b4ff2603e58, m1=0x2b4ff2603e50, global_segment=4) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=4, m1=m1@entry=0x2b4ff2603e50, m2=m2@entry=0x2b4ff2603e58, request=request@entry=0x2b4ff2603e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=4) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 23 (Thread 0x2b4ff2805700 (LWP 8749)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2804db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2804db0, m1=m1@entry=0x2b4ff2804e50, m2=m2@entry=0x2b4ff2804e58, request=request@entry=0x2b4ff2804e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2804e60, m2=0x2b4ff2804e58, m1=0x2b4ff2804e50, global_segment=5) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=5, m1=m1@entry=0x2b4ff2804e50, m2=m2@entry=0x2b4ff2804e58, request=request@entry=0x2b4ff2804e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=5) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 22 (Thread 0x2b4ff2a06700 (LWP 8750)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2a05db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2a05db0, m1=m1@entry=0x2b4ff2a05e50, m2=m2@entry=0x2b4ff2a05e58, request=request@entry=0x2b4ff2a05e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2a05e60, m2=0x2b4ff2a05e58, m1=0x2b4ff2a05e50, global_segment=6) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=6, m1=m1@entry=0x2b4ff2a05e50, m2=m2@entry=0x2b4ff2a05e58, request=request@entry=0x2b4ff2a05e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=6) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 21 (Thread 0x2b4ff2c07700 (LWP 8751)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2c06db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2c06db0, m1=m1@entry=0x2b4ff2c06e50, m2=m2@entry=0x2b4ff2c06e58, request=request@entry=0x2b4ff2c06e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2c06e60, m2=0x2b4ff2c06e58, m1=0x2b4ff2c06e50, global_segment=7) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=7, m1=m1@entry=0x2b4ff2c06e50, m2=m2@entry=0x2b4ff2c06e58, request=request@entry=0x2b4ff2c06e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=7) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 20 (Thread 0x2b4ff2e08700 (LWP 8752)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff2e07db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff2e07db0, m1=m1@entry=0x2b4ff2e07e50, m2=m2@entry=0x2b4ff2e07e58, request=request@entry=0x2b4ff2e07e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff2e07e60, m2=0x2b4ff2e07e58, m1=0x2b4ff2e07e50, global_segment=8) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=8, m1=m1@entry=0x2b4ff2e07e50, m2=m2@entry=0x2b4ff2e07e58, request=request@entry=0x2b4ff2e07e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=8) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 19 (Thread 0x2b4ff3009700 (LWP 8753)): #0 0x00002b4ce3029614 in ?? () from /lib64/libaio.so.1 #1 0x0000000000f67542 in LinuxAIOHandler::collect (this=this@entry=0x2b4ff3008db0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2495 #2 0x0000000000f67efd in LinuxAIOHandler::poll (this=this@entry=0x2b4ff3008db0, m1=m1@entry=0x2b4ff3008e50, m2=m2@entry=0x2b4ff3008e58, request=request@entry=0x2b4ff3008e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2641 #3 0x0000000000f6a3d6 in os_aio_linux_handler (request=0x2b4ff3008e60, m2=0x2b4ff3008e58, m1=0x2b4ff3008e50, global_segment=9) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:2697 #4 os_aio_handler (segment=segment@entry=9, m1=m1@entry=0x2b4ff3008e50, m2=m2@entry=0x2b4ff3008e58, request=request@entry=0x2b4ff3008e60) at /local/mysql-5.7.16.R2/storage/innobase/os/os0file.cc:6249 #5 0x000000000112c770 in fil_aio_wait (segment=segment@entry=9) at /local/mysql-5.7.16.R2/storage/innobase/fil/fil0fil.cc:5815 #6 0x0000000001017158 in io_handler_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0start.cc:308 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x2b4ff320a700 (LWP 8754)): #0 0x00002b4ce2e18a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6ba33 in os_event::timed_wait (this=this@entry=0x2b4ce67fc1b8, abstime=abstime@entry=0x2b4ff3209bc0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:285 #2 0x0000000000f6bc41 in os_event::wait_time_low (this=0x2b4ce67fc1b8, time_in_usec=, reset_sig_count=, reset_sig_count@entry=2) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:412 #3 0x0000000000f6be9a in os_event_wait_time_low (event=, time_in_usec=, reset_sig_count=reset_sig_count@entry=2) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:517 #4 0x00000000010d14ff in pc_sleep_if_needed (sig_count=2, next_loop_time=1574035126268) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0flu.cc:2690 #5 buf_flush_page_cleaner_coordinator (arg=) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0flu.cc:3191 #6 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #7 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 17 (Thread 0x2b4ff340b700 (LWP 8755)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6bb61 in wait (this=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:165 #2 os_event::wait_low (this=0x2b4fd378a578, reset_sig_count=, reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:335 #3 0x0000000000f6beaa in os_event_wait_low (event=, reset_sig_count=reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:534 #4 0x00000000010d40f7 in buf_flush_page_cleaner_worker (arg=) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0flu.cc:3496 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x2b4ff360c700 (LWP 8756)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6bb61 in wait (this=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:165 #2 os_event::wait_low (this=0x2b4fd378a578, reset_sig_count=, reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:335 #3 0x0000000000f6beaa in os_event_wait_low (event=, reset_sig_count=reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:534 #4 0x00000000010d40f7 in buf_flush_page_cleaner_worker (arg=) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0flu.cc:3496 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 15 (Thread 0x2b4ff380d700 (LWP 8757)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6bb61 in wait (this=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:165 #2 os_event::wait_low (this=0x2b4fd378a578, reset_sig_count=, reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:335 #3 0x0000000000f6beaa in os_event_wait_low (event=, reset_sig_count=reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:534 #4 0x00000000010d40f7 in buf_flush_page_cleaner_worker (arg=) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0flu.cc:3496 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 14 (Thread 0x2b4ff3a0e700 (LWP 8770)): #0 0x00002b4ce2e18a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6ba33 in os_event::timed_wait (this=this@entry=0x2b4fd378a438, abstime=abstime@entry=0x2b4ff3a0dd20) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:285 #2 0x0000000000f6bc41 in os_event::wait_time_low (this=this@entry=0x2b4fd378a438, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=, reset_sig_count@entry=1) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:412 #3 0x0000000000f6be9a in os_event_wait_time_low (event=event@entry=0x2b4fd378a438, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=reset_sig_count@entry=1) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:517 #4 0x0000000000f38497 in lock_wait_timeout_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/lock/lock0wait.cc:501 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 13 (Thread 0x2b4ff7600700 (LWP 8771)): #0 0x00002b4ce2e18a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6ba33 in os_event::timed_wait (this=this@entry=0x2b4ce67fbfd8, abstime=abstime@entry=0x2b4ff75ffc90) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:285 #2 0x0000000000f6bc41 in os_event::wait_time_low (this=0x2b4ce67fbfd8, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:412 #3 0x0000000000f6be9a in os_event_wait_time_low (event=, time_in_usec=time_in_usec@entry=1000000, reset_sig_count=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:517 #4 0x0000000001011512 in srv_error_monitor_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:1737 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 12 (Thread 0x2b4ff7801700 (LWP 8772)): #0 0x00002b4ce2e18a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6ba33 in os_event::timed_wait (this=this@entry=0x2b4ce67fc078, abstime=abstime@entry=0x2b4ff7800df0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:285 #2 0x0000000000f6bc41 in os_event::wait_time_low (this=0x2b4ce67fc078, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:412 #3 0x0000000000f6be9a in os_event_wait_time_low (event=, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:517 #4 0x0000000001011081 in srv_monitor_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:1571 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x2b4ff7a02700 (LWP 8773)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6bb61 in wait (this=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:165 #2 os_event::wait_low (this=0x2b4fd37f6b78, reset_sig_count=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:335 #3 0x0000000000f6beaa in os_event_wait_low (event=, reset_sig_count=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:534 #4 0x0000000001024a98 in sync_array_wait_event (arr=arr@entry=0x2b4ce53664d8, cell=@0x2b4ff7a01d50: 0x2b4ce66f1058) at /local/mysql-5.7.16.R2/storage/innobase/sync/sync0arr.cc:475 #5 0x0000000001026cc6 in rw_lock_x_lock_wait_func (line=1968, file_name=0x15d74f0 "/local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc", threshold=0, lock=0x2b4fd37f6998) at /local/mysql-5.7.16.R2/storage/innobase/sync/sync0rw.cc:510 #6 rw_lock_x_lock_low (line=1968, file_name=0x15d74f0 "/local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc", pass=0, lock=0x2b4fd37f6998) at /local/mysql-5.7.16.R2/storage/innobase/sync/sync0rw.cc:566 #7 rw_lock_x_lock_func (lock=lock@entry=0x2b4fd37f6998, pass=pass@entry=0, file_name=file_name@entry=0x15d74f0 "/local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc", line=line@entry=1968) at /local/mysql-5.7.16.R2/storage/innobase/sync/sync0rw.cc:729 #8 0x000000000100e606 in pfs_rw_lock_x_lock_func (pass=0, file_name=0x15d74f0 "/local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc", line=1968, lock=0x2b4fd37f6998) at /local/mysql-5.7.16.R2/storage/innobase/include/sync0rw.ic:711 #9 srv_master_evict_from_table_cache (pct_check=pct_check@entry=100) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:1968 #10 0x0000000001012db4 in srv_master_do_idle_tasks () at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:2216 #11 srv_master_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:2371 #12 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #13 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x2b4ff7c03700 (LWP 8774)): #0 0x0000000000f947c1 in cmp_data (len2=32, data2=, len1=32, data1=, prtype=3583, mtype=14) at /local/mysql-5.7.16.R2/storage/innobase/rem/rem0cmp.cc:431 #1 cmp_rec_rec_with_match (rec1=rec1@entry=0x2b4e0048417a "", rec2=rec2@entry=0x2b4e0048017a "", offsets1=offsets1@entry=0x2b4ff7c006c0, offsets2=offsets2@entry=0x2b4ff7c009e0, index=index@entry=0x2b4ff70db008, nulls_unequal=nulls_unequal@entry=false, matched_fields=matched_fields@entry=0x2b4ff7c00560) at /local/mysql-5.7.16.R2/storage/innobase/rem/rem0cmp.cc:1228 #2 0x000000000118f50e in rtr_page_copy_rec_list_end_no_locks (new_block=new_block@entry=0x2b4e00008ce0, block=block@entry=0x2b4e00008e68, rec=rec@entry=0x2b4e00484063 "infimum", index=index@entry=0x2b4ff70db008, heap=heap@entry=0x2b4ff7018398, rec_move=0x2b4ff71f4088, max_move=187, num_moved=num_moved@entry=0x2b4ff7c00da0, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/gis/gis0rtree.cc:1476 #3 0x0000000000f77a74 in page_copy_rec_list_end (new_block=0x2b4e00008ce0, block=block@entry=0x2b4e00008e68, rec=0x2b4e00484063 "infimum", index=0x2b4ff70db008, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/page/page0page.cc:661 #4 0x000000000108545f in btr_compress (cursor=cursor@entry=0x2b4ff7c016b0, adjust=adjust@entry=0, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/btr/btr0btr.cc:3597 #5 0x0000000001092a1c in btr_cur_compress_if_useful (cursor=cursor@entry=0x2b4ff7c016b0, adjust=adjust@entry=0, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/btr/btr0cur.cc:5067 #6 0x00000000010987a9 in btr_cur_pessimistic_delete (err=err@entry=0x2b4ff7c01530, has_reserved_extents=has_reserved_extents@entry=1, cursor=cursor@entry=0x2b4ff7c016b0, flags=flags@entry=16, rollback=rollback@entry=false, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/btr/btr0cur.cc:5377 #7 0x000000000119103d in rtr_node_ptr_delete (index=, cursor=cursor@entry=0x2b4ff7c016b0, block=block@entry=0x2b4e00009798, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/gis/gis0rtree.cc:1762 #8 0x000000000119110b in rtr_merge_and_update_mbr (cursor=cursor@entry=0x2b4ff7c017f0, cursor2=cursor2@entry=0x2b4ff7c016b0, offsets=0x2b4ff71ca050, offsets2=offsets2@entry=0x2b4ff70eae88, child_page=0x2b4f767a4000 "\vx", , merge_block=, block=0x2b4e00009798, index=0x2b4ff70db008, mtr=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/gis/gis0rtree.cc:1741 #9 0x000000000108584e in btr_compress (cursor=cursor@entry=0x2b4ff7c01d60, adjust=adjust@entry=0, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/btr/btr0btr.cc:3686 #10 0x0000000001092a1c in btr_cur_compress_if_useful (cursor=cursor@entry=0x2b4ff7c01d60, adjust=adjust@entry=0, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/btr/btr0cur.cc:5067 #11 0x00000000010987a9 in btr_cur_pessimistic_delete (err=err@entry=0x2b4ff7c01d20, has_reserved_extents=has_reserved_extents@entry=0, cursor=cursor@entry=0x2b4ff7c01d60, flags=flags@entry=0, rollback=rollback@entry=false, mtr=mtr@entry=0x2b4ff7c01fc0) at /local/mysql-5.7.16.R2/storage/innobase/btr/btr0cur.cc:5377 #12 0x0000000000fdca89 in row_purge_remove_sec_if_poss_tree (node=node@entry=0x2b4fd3b81488, index=index@entry=0x2b4ff70db008, entry=entry@entry=0x2b4ff702f688) at /local/mysql-5.7.16.R2/storage/innobase/row/row0purge.cc:375 #13 0x0000000000fde0c8 in row_purge_remove_sec_if_poss (entry=0x2b4ff702f688, index=0x2b4ff70db008, node=0x2b4fd3b81488) at /local/mysql-5.7.16.R2/storage/innobase/row/row0purge.cc:592 #14 row_purge_upd_exist_or_extern_func (node=node@entry=0x2b4fd3b81488, undo_rec=undo_rec@entry=0x2b4ff70d6f18 "\021\026\f\026\201@") at /local/mysql-5.7.16.R2/storage/innobase/row/row0purge.cc:709 #15 0x0000000000fde5ea in row_purge_record_func (updated_extern=, undo_rec=0x2b4ff70d6f18 "\021\026\f\026\201@", node=) at /local/mysql-5.7.16.R2/storage/innobase/row/row0purge.cc:987 #16 row_purge (thr=0x2b4ff7c02b60, undo_rec=, node=) at /local/mysql-5.7.16.R2/storage/innobase/row/row0purge.cc:1031 #17 row_purge_step (thr=thr@entry=0x2b4ce519ec58) at /local/mysql-5.7.16.R2/storage/innobase/row/row0purge.cc:1110 #18 0x0000000000f8eb29 in que_thr_step (thr=) at /local/mysql-5.7.16.R2/storage/innobase/que/que0que.cc:1056 #19 que_run_threads_low (thr=) at /local/mysql-5.7.16.R2/storage/innobase/que/que0que.cc:1118 #20 que_run_threads (thr=) at /local/mysql-5.7.16.R2/storage/innobase/que/que0que.cc:1158 #21 0x000000000103c6fe in trx_purge (n_purge_threads=, batch_size=, truncate=) at /local/mysql-5.7.16.R2/storage/innobase/trx/trx0purge.cc:1860 #22 0x0000000001015317 in srv_do_purge (n_total_purged=, n_threads=1) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:2617 #23 srv_purge_coordinator_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/srv/srv0srv.cc:2789 #24 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #25 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x2b4ff7e04700 (LWP 8775)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6bb61 in wait (this=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:165 #2 os_event::wait_low (this=0x2b4ce67fc118, reset_sig_count=, reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:335 #3 0x0000000000f6beaa in os_event_wait_low (event=, reset_sig_count=reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:534 #4 0x00000000010c80b4 in buf_dump_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0dump.cc:781 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x2b4ff8005700 (LWP 8776)): #0 0x00002b4ce2e18a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6ba33 in os_event::timed_wait (this=this@entry=0x2b4fd378ae38, abstime=abstime@entry=0x2b4ff8004d40) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:285 #2 0x0000000000f6bc41 in os_event::wait_time_low (this=0x2b4fd378ae38, time_in_usec=time_in_usec@entry=10000000, reset_sig_count=, reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:412 #3 0x0000000000f6be9a in os_event_wait_time_low (event=, time_in_usec=time_in_usec@entry=10000000, reset_sig_count=reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:517 #4 0x0000000001125396 in dict_stats_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/dict/dict0stats_bg.cc:421 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x2b4ff8206700 (LWP 8777)): #0 0x00002b4ce2e18a82 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6ba33 in os_event::timed_wait (this=this@entry=0x2b4fec7b9e98, abstime=abstime@entry=0x2b4ff8205c00) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:285 #2 0x0000000000f6bc41 in os_event::wait_time_low (this=0x2b4fec7b9e98, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=, reset_sig_count@entry=1) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:412 #3 0x0000000000f6be9a in os_event_wait_time_low (event=, time_in_usec=time_in_usec@entry=5000000, reset_sig_count=reset_sig_count@entry=1) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:517 #4 0x0000000001075e18 in ib_wqueue_timedwait (wq=wq@entry=0x2b4fec6f4338, wait_in_usecs=wait_in_usecs@entry=5000000) at /local/mysql-5.7.16.R2/storage/innobase/ut/ut0wqueue.cc:160 #5 0x000000000117b033 in fts_optimize_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/fts/fts0opt.cc:3045 #6 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #7 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x2b4ff8407700 (LWP 8778)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000f6bb61 in wait (this=) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:165 #2 os_event::wait_low (this=0x2b4ce67fc258, reset_sig_count=, reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:335 #3 0x0000000000f6beaa in os_event_wait_low (event=, reset_sig_count=reset_sig_count@entry=0) at /local/mysql-5.7.16.R2/storage/innobase/os/os0event.cc:534 #4 0x00000000010bbd72 in buf_resize_thread (arg=) at /local/mysql-5.7.16.R2/storage/innobase/buf/buf0buf.cc:3009 #5 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #6 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x2b4ce2a45700 (LWP 8779)): #0 0x00002b4ce2e1be91 in sigwait () from /lib64/libpthread.so.0 #1 0x00000000007a1d2b in signal_hand (arg=arg@entry=0x0) at /local/mysql-5.7.16.R2/sql/mysqld.cc:2099 #2 0x00000000011c3c5f in pfs_spawn_thread (arg=0x2b4fd3bfb7e0) at /local/mysql-5.7.16.R2/storage/perfschema/pfs.cc:2188 #3 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #4 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x2b4ff8814700 (LWP 8780)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000e275c3 in native_cond_wait (mutex=, cond=) at /local/mysql-5.7.16.R2/include/thr_cond.h:140 #2 my_cond_wait (mp=, cond=) at /local/mysql-5.7.16.R2/include/thr_cond.h:195 #3 inline_mysql_cond_wait (that=, mutex=, src_file=0x15a8b50 "/local/mysql-5.7.16.R2/sql/rpl_gtid_persist.cc", src_line=852) at /local/mysql-5.7.16.R2/include/mysql/psi/mysql_thread.h:1199 #4 compress_gtid_table (p_thd=p_thd@entry=0x2b4fd3a37000) at /local/mysql-5.7.16.R2/sql/rpl_gtid_persist.cc:852 #5 0x00000000011c3c5f in pfs_spawn_thread (arg=0x2b4fd3bfbee0) at /local/mysql-5.7.16.R2/storage/perfschema/pfs.cc:2188 #6 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #7 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x2b4ce2a86700 (LWP 8781)): #0 0x00002b4ce437f64d in poll () from /lib64/libc.so.6 #1 0x00000000012863f3 in vio_io_wait (vio=vio@entry=0x2b4fe200e0a0, event=event@entry=VIO_IO_EVENT_READ, timeout=28800000) at /local/mysql-5.7.16.R2/vio/viosocket.c:786 #2 0x0000000001286468 in vio_socket_io_wait (vio=vio@entry=0x2b4fe200e0a0, event=event@entry=VIO_IO_EVENT_READ) at /local/mysql-5.7.16.R2/vio/viosocket.c:77 #3 0x0000000001286547 in vio_read (vio=0x2b4fe200e0a0, buf=0x2b4fe2046020 "\001", size=4) at /local/mysql-5.7.16.R2/vio/viosocket.c:132 #4 0x0000000000bf5e1f in net_read_raw_loop (net=net@entry=0x2b4fe20177a0, count=count@entry=4) at /local/mysql-5.7.16.R2/sql/net_serv.cc:672 #5 0x0000000000bf6114 in net_read_packet_header (net=0x2b4fe20177a0) at /local/mysql-5.7.16.R2/sql/net_serv.cc:756 #6 net_read_packet (net=0x2b4fe20177a0, complen=0x2b4ce2a85d00) at /local/mysql-5.7.16.R2/sql/net_serv.cc:822 #7 0x0000000000bf6edc in my_net_read (net=0x2b4fe20177a0) at /local/mysql-5.7.16.R2/sql/net_serv.cc:899 #8 0x0000000000c026ac in Protocol_classic::read_packet (this=0x2b4fe2017050) at /local/mysql-5.7.16.R2/sql/protocol_classic.cc:808 #9 0x0000000000c0253b in Protocol_classic::get_command (this=0x2b4fe2017050, com_data=0x2b4ce2a85dc0, cmd=0x2b4ce2a85db0) at /local/mysql-5.7.16.R2/sql/protocol_classic.cc:965 #10 0x0000000000c9e19c in do_command (thd=thd@entry=0x2b4fe2016000) at /local/mysql-5.7.16.R2/sql/sql_parse.cc:934 #11 0x0000000000d582f0 in handle_connection (arg=arg@entry=0x2b4fe1c89060) at /local/mysql-5.7.16.R2/sql/conn_handler/connection_handler_per_thread.cc:300 #12 0x00000000011c3c5f in pfs_spawn_thread (arg=0x2b4fd3bfc0a0) at /local/mysql-5.7.16.R2/storage/perfschema/pfs.cc:2188 #13 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #14 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x2b4ce2ac7700 (LWP 8875)): #0 0x00002b4ce2e186d5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x0000000000d58063 in native_cond_wait (mutex=0x1e38bc0 , cond=0x1e38b80 ) at /local/mysql-5.7.16.R2/include/thr_cond.h:140 #2 my_cond_wait (mp=0x1e38bc0 , cond=0x1e38b80 ) at /local/mysql-5.7.16.R2/include/thr_cond.h:195 #3 inline_mysql_cond_wait (mutex=0x1e38bc0 , src_file=0x153f0c0 "/local/mysql-5.7.16.R2/sql/conn_handler/connection_handler_per_thread.cc", src_line=145, that=0x1e38b80 ) at /local/mysql-5.7.16.R2/include/mysql/psi/mysql_thread.h:1199 #4 Per_thread_connection_handler::block_until_new_connection () at /local/mysql-5.7.16.R2/sql/conn_handler/connection_handler_per_thread.cc:145 #5 0x0000000000d581af in handle_connection (arg=arg@entry=0x2b4fe1c89080) at /local/mysql-5.7.16.R2/sql/conn_handler/connection_handler_per_thread.cc:329 #6 0x00000000011c3c5f in pfs_spawn_thread (arg=0x2b4fd3bfc260) at /local/mysql-5.7.16.R2/storage/perfschema/pfs.cc:2188 #7 0x00002b4ce2e14dc5 in start_thread () from /lib64/libpthread.so.0 #8 0x00002b4ce4389c9d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x2b4ce29d5680 (LWP 8736)): #0 0x00002b4ce437f64d in poll () from /lib64/libc.so.6 #1 0x0000000000d59e6d in Mysqld_socket_listener::listen_for_connection_event (this=0x2b4fec7ba880) at /local/mysql-5.7.16.R2/sql/conn_handler/socket_connection.cc:848 #2 0x00000000007a9d79 in connection_event_loop (this=0x2b4ce50251b8) at /local/mysql-5.7.16.R2/sql/conn_handler/connection_acceptor.h:66 #3 mysqld_main (argc=68, argv=0x2b4ce503e588) at /local/mysql-5.7.16.R2/sql/mysqld.cc:4998 #4 0x00002b4ce42b4b15 in __libc_start_main () from /lib64/libc.so.6 #5 0x000000000079efd1 in _start () $1 = (rw_lock_t *) 0x2b4fd37f6998 $2 = {m_impl = {m_lock_word = 0, m_waiters = 0, m_event = 0x2b4fd37f6a38, m_policy = {m_count = {m_spins = 0, m_waits = 0, m_calls = 0, m_enabled = false}, m_id = LATCH_ID_DICT_SYS}}, m_ptr = 0x0}