.
Thread 5 (LWP 3385):
#0  0x00007fc65986474d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fc65a2c6d34 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 4 (LWP 3378):
#0  0x00007fc65986474d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fc65a2c6d34 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (LWP 3383):
#0  0x00007fc65986474d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fc65a2c6d34 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 3381):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
No locals.
#1  0x00007fc65a307a05 in ?? ()
No symbol table info available.
#2  0x000000000000013b in ?? ()
No symbol table info available.
#3  0x00000000167b43a8 in ?? ()
No symbol table info available.
#4  0x00007fc64b7ad700 in ?? ()
No symbol table info available.
#5  0x0000000000de14b8 in ?? ()
No symbol table info available.
#6  0x0000000000de14a0 in ?? ()
No symbol table info available.
#7  0x00007fc65a29cf21 in ?? ()
No symbol table info available.
#8  0x0000000000de1440 in ?? ()
No symbol table info available.
#9  0x0000000000d9fac0 in ?? ()
No symbol table info available.
#10 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 3372):
#0  0x00007fc6597adf39 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 3372
        selftid = 3372
#1  0x00007fc6597b1348 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x4fe7c1, sa_sigaction = 0x4fe7c1}, sa_mask = {__val = {4294967186, 140489895965600, 140489951511607, 140733193388037, 0, 72057594037927936, 140489881279784, 16074544, 140489895965600, 104, 140489951540213, 0, 0, 140489885185936, 4294967295, 140489885185888}}, sa_flags = 5, sa_restorer = 0x7fc659b377b8 <main_arena+88>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fc65a2eaeb5 in ?? ()
No symbol table info available.
#3  0x00007fc65a3143a5 in ?? ()
No symbol table info available.
#4  0x00000000004feee0 in ?? ()
No symbol table info available.
#5  0x00007fc65a3143a5 in ?? ()
No symbol table info available.
#6  0x00007fc65a35c1bf in ?? ()
No symbol table info available.
#7  0x0000000000f54640 in ?? ()
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.