$ sudo strace -p 11927
Process 11927 attached
pause(


)                                 = ? ERESTARTNOHAND (To be restarted if no handler)
--- SIGINT {si_signo=SIGINT, si_code=SI_USER, si_pid=11985, si_uid=0} ---
rt_sigreturn()                          = -1 EINTR (Interrupted system call)
futex(0x3177c90, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x3177c90, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
write(4, "\1\0\0\0\0\0\0\0", 8)         = 8
write(8, "\1\0\0\0\0\0\0\0", 8)         = 8
write(10, "\1\0\0\0\0\0\0\0", 8)        = 8
poll([{fd=3, events=POLLIN}], 1, 4294967295) = 1 ([{fd=3, revents=POLLIN}])
write(6, "\1\0\0\0\0\0\0\0", 8)         = 8
futex(0x7f4813fff9d0, FUTEX_WAIT, 11941, NULL) = 0
close(7)                                = 0
close(6)                                = 0
munmap(0x7f47ef7ff000, 8392704)         = 0
close(5)                                = 0
close(4)                                = 0
close(3)                                = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=118, ...}) = 0
write(2, "2015-12-14 01:56:55,505 INFO roo"..., 61) = 61
futex(0x3177c90, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
pause()