. Thread 4 (Thread 0x7f2c87879700 (LWP 30466)): #0 0x00007f2c8c6da583 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007f2c8855fcf8 in boost::asio::detail::epoll_reactor::run(bool, boost::asio::detail::op_queue&) () from /usr/lib/x86_64-linux-gnu/libmirclient.so.3 No symbol table info available. #2 0x00007f2c885621f8 in boost::asio::detail::task_io_service::run(boost::system::error_code&) () from /usr/lib/x86_64-linux-gnu/libmirclient.so.3 No symbol table info available. #3 0x00007f2c88562946 in boost::asio::io_service::run() () from /usr/lib/x86_64-linux-gnu/libmirclient.so.3 No symbol table info available. #4 0x00007f2c8792b770 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #5 0x00007f2c8d9ccf6e in start_thread (arg=0x7f2c87879700) at pthread_create.c:311 __res = pd = 0x7f2c87879700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139829229098752, -1906285203077848617, 0, 139829346840672, 139829331191584, 4096, 2004819515515740631, 2004832514209227223}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #6 0x00007f2c8c6d9ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 3 (Thread 0x7f2c86b1b700 (LWP 30467)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007f2c86dbfaa1 in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so No symbol table info available. #2 0x00007f2c8d9ccf6e in start_thread (arg=0x7f2c86b1b700) at pthread_create.c:311 __res = pd = 0x7f2c86b1b700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139829215082240, -1906285203077848617, 0, 139829346840672, 139829331191584, 4096, 2004821835871822295, 2004832514209227223}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #3 0x00007f2c8c6d9ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 2 (Thread 0x7f2c8631a700 (LWP 30468)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 No locals. #1 0x00007f2c86dbfaa1 in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so No symbol table info available. #2 0x00007f2c8d9ccf6e in start_thread (arg=0x7f2c8631a700) at pthread_create.c:311 __res = pd = 0x7f2c8631a700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139829206689536, -1906285203077848617, 0, 139829346840672, 139829331191584, 4096, 2004822933772837335, 2004832514209227223}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = 0 pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #3 0x00007f2c8c6d9ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 No locals. . Thread 1 (Thread 0x7f2c8e89d980 (LWP 30463)): #0 0x00007f2c8c616f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 resultvar = 0 pid = 30463 selftid = 30463 #1 0x00007f2c8c61a5e8 in __GI_abort () at abort.c:90 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 140735503402136, 139829344660597, 5, 0, 0, 139829310287080, 139829244900544, 140735503402136, 139829376200016, 139829344687877, 0, 18446744073709551615, 139829351262720, 140735503401936, 0}}, sa_flags = -1903568512, sa_restorer = 0x7f2c8e89d980} sigs = {__val = {32, 0 }} #2 0x00007f2c8ea6d14e in OsAbort () No symbol table info available. #3 0x00007f2c8ea72073 in ?? () No symbol table info available. #4 0x00007f2c8ea72d58 in FatalError () No symbol table info available. #5 0x00007f2c88789c56 in xmir_window_get_fd () from /usr/lib/xorg/modules/extensions/libxmir.so No symbol table info available. #6 0x00007f2c86dc402a in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so No symbol table info available. #7 0x00007f2c887899d0 in xmir_screen_for_each_damaged_window () from /usr/lib/xorg/modules/extensions/libxmir.so No symbol table info available. #8 0x00007f2c8ea58af7 in ?? () No symbol table info available. #9 0x00007f2c8e91e054 in BlockHandler () No symbol table info available. #10 0x00007f2c8ea64704 in WaitForSomething () No symbol table info available. #11 0x00007f2c8e919d61 in ?? () No symbol table info available. #12 0x00007f2c8e90956a in ?? () No symbol table info available. #13 0x00007f2c8c601de5 in __libc_start_main (main=0x7f2c8e9091a0, argc=11, ubp_av=0x7fff89b00b38, init=, fini=, rtld_fini=, stack_end=0x7fff89b00b28) at libc-start.c:260 result = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -1906285203077848617, 139829347129478, 140735503403824, 0, 0, 1906307787746845143, 2004835711329247703}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7f2c8ea76480 <__libc_csu_init>, 0x7fff89b00b38}, data = {prev = 0x0, cleanup = 0x0, canceltype = -1901632384}}} not_first_call = #14 0x00007f2c8e9098af in _start () No symbol table info available.