.
Thread 4 (Thread 0x7f5a37fff6c0 (LWP 2254)):
#0  0x00007f5a41b0fcff in __GI___poll (fds=0x560f4b772520, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        sc_ret = -516
        sc_cancel_oldtype = 0
#1  0x00007f5a420743de in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5a420173f0 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5a42017441 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5a42046791 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5a41a8f13a in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140025625374288, -1881387722914636601, -120, 0, 140730120732000, 140025454915584, 1970210669557210311, 1970171473838759111}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f5a41b1db50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
.
Thread 3 (Thread 0x7f5a3cc9c6c0 (LWP 2255)):
#0  0x00007f5a41b0fcff in __GI___poll (fds=0x7f5a2c0022c0, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        sc_ret = -516
        sc_cancel_oldtype = 0
#1  0x00007f5a420743de in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5a4201906f in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5a409659da in  () at /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007f5a42046791 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5a41a8f13a in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140025625374288, -1881387722914636601, -120, 11, 140730120732304, 140025535250432, 1970199797384371399, 1970171473838759111}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f5a41b1db50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
.
Thread 2 (Thread 0x7f5a3d7ff6c0 (LWP 2253)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f5a42068c53 in g_cond_wait () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f5a41fe49eb in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f5a42047fba in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f5a42046791 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f5a41a8f13a in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:444
        ret = <optimized out>
        pd = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140025625374288, -1881387722914636601, -120, 0, 140730120732192, 140025547190272, 1970198574929304775, 1970171473838759111}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#6  0x00007f5a41b1db50 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
.
Thread 1 (Thread 0x7f5a400f4d80 (LWP 2196)):
#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {94623669442512}}
        ret = <optimized out>
#1  __pthread_kill_internal (signo=6, threadid=<optimized out>) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3  0x00007f5a41a3c406 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#4  0x00007f5a41a2287c in __GI_abort () at ./stdlib/abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x20, sa_sigaction = 0x20}, sa_mask = {__val = {140025624387994, 0, 11, 94623691336544, 12, 0, 0, 94623690013152, 140025624437804, 94622424498176, 0, 94623690129616, 140730120733120, 94623690013152, 5040879277763227392, 94622424498176}}, sa_flags = 1265114480, sa_restorer = 0x560f4b6a1300}
#5  0x00007f5a41de88d0 in  () at /lib/x86_64-linux-gnu/libobt.so.2
#6  0x00007f5a41a3c4b0 in <signal handler called> () at /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000560f4a2fde61 in client_calc_layer ()
#8  0x0000560f4a3105cd in  ()
#9  0x00007f5a41dee339 in  () at /lib/x86_64-linux-gnu/libobt.so.2
#10 0x00007f5a42019afd in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f5a42074468 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f5a4201906f in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x0000560f4a2f1f8f in main ()