Thread 16 (Thread 0x7f1ca900f700 (LWP 8070)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 15 (Thread 0x7f1ca880e700 (LWP 8071)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 14 (Thread 0x7f1c20eff700 (LWP 8072)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 13 (Thread 0x7f1c206fe700 (LWP 8073)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 12 (Thread 0x7f1c1fefd700 (LWP 8074)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x7f1c1f6fc700 (LWP 8075)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x7f1c1eefb700 (LWP 8076)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x7f1c1e6fa700 (LWP 8077)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7f1c1def9700 (LWP 8078)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7f1c1d6f8700 (LWP 8079)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x00000000012f326b in os_aio_handler(unsigned long, fil_node_t**, void**, IORequest*) () #3  0x00000000011b0472 in fil_aio_wait(unsigned long) () #4  0x00000000013abcb8 in io_handler_thread () #5  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #6  0x00000000021cc0af in execute_native_thread_routine () #7  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #8  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7f1c1cef7700 (LWP 8080)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x0000000001111561 in buf_flush_page_coordinator_thread(unsigned long) () #3  0x0000000000b99913 in std::thread::_State_impl > >::_M_run() () #4  0x00000000021cc0af in execute_native_thread_routine () #5  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #6  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7f1c17fff700 (LWP 8081)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x0000000001110967 in buf_flush_page_cleaner_thread() () #3  0x0000000000b9980e in std::thread::_State_impl > >::_M_run() () #4  0x00000000021cc0af in execute_native_thread_routine () #5  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #6  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7f1c177fe700 (LWP 8082)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x0000000001110967 in buf_flush_page_cleaner_thread() () #3  0x0000000000b9980e in std::thread::_State_impl > >::_M_run() () #4  0x00000000021cc0af in execute_native_thread_routine () #5  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #6  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7f1c16ffd700 (LWP 8083)): #0  0x00007f1cacbe7965 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1  0x00000000012f8760 in os_event::wait_low(long) () #2  0x0000000001110967 in buf_flush_page_cleaner_thread() () #3  0x0000000000b9980e in std::thread::_State_impl > >::_M_run() () #4  0x00000000021cc0af in execute_native_thread_routine () #5  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #6  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7f1be7fff700 (LWP 8084)): #0  0x00007f1cacbeae3d in nanosleep () from /lib64/libpthread.so.0 #1  0x00000000012cfc25 in recv_writer_thread() () #2  0x0000000000b9980e in std::thread::_State_impl > >::_M_run() () #3  0x00000000021cc0af in execute_native_thread_routine () #4  0x00007f1cacbe3dd5 in start_thread () from /lib64/libpthread.so.0 #5  0x00007f1caa92df6d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f1cacff5940 (LWP 8051)): #0  0x00007f1caa912e07 in sched_yield () from /lib64/libc.so.6 #1  0x00000000011c069d in Fil_shard::mutex_acquire_and_get_space(unsigned int, fil_space_t*&) () #2  0x00000000011c0934 in Fil_shard::space_extend(fil_space_t*, unsigned int) () #3  0x00000000011c1345 in Fil_shard::get_file_for_io(IORequest const&, fil_space_t*, unsigned int*, fil_node_t*&) () #4  0x00000000011c1e79 in Fil_shard::do_io(IORequest const&, bool, page_id_t const&, page_size_t const&, unsigned long, unsigned long, void*, void*) () #5  0x00000000011c277b in fil_io(IORequest const&, bool, page_id_t const&, page_size_t const&, unsigned long, unsigned long, void*, void*) () #6  0x0000000001120e53 in buf_read_page_low(dberr_t*, bool, unsigned long, unsigned long, page_id_t const&, page_size_t const&, bool) () #7  0x0000000001123215 in buf_read_recv_pages(bool, unsigned int, unsigned int const*, unsigned long) () #8  0x00000000012d42ce in recv_apply_hashed_log_recs(log_t&, bool) () #9  0x00000000012d74cd in recv_recovery_from_checkpoint_start(log_t&, unsigned long, unsigned long) () #10 0x00000000013b7e8d in srv_start(bool, std::string const&, unsigned long) () #11 0x0000000000ba10fc in innodb_init(bool, bool) () #12 0x0000000000ba8990 in xtrabackup_prepare_func(int, char**) () #13 0x0000000000b6abb0 in main ()