#0  0x00007f36ee42bf79 in do_sigtimedwait (timeout=<optimized out>, info=0x1, set=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigtimedwait.c:60
        tmpset = {__val = {0 <repeats 15 times>, 8192}}
        result = 0
#1  __GI___sigtimedwait (set=<optimized out>, info=0x1, timeout=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigtimedwait.c:75
        oldtype = <optimized out>
        result = 420771064
#2  0x0000000000000001 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.