gdb) info threads Id Target Id Frame * 3256 LWP 60631 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 3257 LWP 60632 futex_abstimed_wait_cancelable (private=0, abstime=0x7f076b7ed940, clockid=1803474960, expected=0, futex_word=0x7f076be0a5f0) at ../sysdeps/nptl/futex-internal.h:323 3258 LWP 60639 futex_abstimed_wait_cancelable (private=0, abstime=0x7f076a9ec7e0, clockid=1788790608, expected=0, futex_word=0x7f076ae35464) at ../sysdeps/nptl/futex-internal.h:323 3259 LWP 60640 futex_abstimed_wait_cancelable (private=0, abstime=0x7f076a1eb990, clockid=1780398336, expected=0, futex_word=0x7f076ae23300) at ../sysdeps/nptl/futex-internal.h:323 3260 LWP 60641 0x00007f076c12d96f in __GI___poll (fds=0x7f07699ea968, nfds=1, timeout=60000) at ../sysdeps/unix/sysv/linux/poll.c:29 3261 LWP 60645 futex_abstimed_wait_cancelable (private=0, abstime=0x7f07637ec960, clockid=1669253360, expected=0, futex_word=0x7f076ae743a0) at ../sysdeps/nptl/futex-internal.h:323 3262 LWP 60647 futex_abstimed_wait_cancelable (private=0, abstime=0x7f0762beb990, clockid=1656666384, expected=0, futex_word=0x7f076ae98d7c) at ../sysdeps/nptl/futex-internal.h:323 3263 LWP 60658 0x00007f076c139d56 in epoll_wait (epfd=24, events=0x7f076aea3480, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 3264 LWP 60659 0x00007f076c139d56 in epoll_wait (epfd=29, events=0x7f076aea3600, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 3265 LWP 60660 0x00007f076c139d56 in epoll_wait (epfd=34, events=0x7f076aea3780, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 3266 LWP 60661 0x00007f076c139d56 in epoll_wait (epfd=39, events=0x7f076aea3900, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 3267 LWP 60662 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3268 LWP 60663 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3269 LWP 60664 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3270 LWP 60665 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3271 LWP 60666 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3272 LWP 60667 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3273 LWP 60668 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3274 LWP 60669 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3275 LWP 60670 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3276 LWP 60671 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3277 LWP 60672 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3278 LWP 60673 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3279 LWP 60674 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3280 LWP 60675 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3281 LWP 60676 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3282 LWP 60677 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3283 LWP 60678 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3284 LWP 60679 0x00007f076c132f29 in __libc_cleanup_routine (f=) at ../sysdeps/nptl/libc-lockP.h:280 3285 LWP 60680 0x00007f076c139d56 in epoll_wait (epfd=44, events=0x7f076aea4080, maxevents=32, timeout=1452) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 3286 LWP 60681 0x00007f076c139d56 in epoll_wait (epfd=11, events=0x7f076aea3300, maxevents=32, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 (gdb)