.
Thread 1 (Thread 0x7f48f58a4880 (LWP 213)):
#0  0x00007f48f46914d3 in __epoll_wait_nocancel () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00005619d2f8eef3 in ?? ()
No symbol table info available.
#2  0x00005619d2f8387d in ?? ()
No symbol table info available.
#3  0x00007f48f45aaa40 in __libc_start_main (main=0x5619d2f83440, argc=1, argv=0x7ffefd5037b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffefd5037a8) at libc-start.c:289
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -8807161808830916871, 94668913657952, 140733148313520, 0, 0, -3023899242463815943, -2925965659400628487}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffefd5037c8, 0x7f48f58d0188}, data = {prev = 0x0, cleanup = 0x0, canceltype = -45074488}}}
        not_first_call = <optimized out>
#4  0x00005619d2f84889 in ?? ()
No symbol table info available.