Thread 16 (Thread 0x7f4496ffd700 (LWP 2569)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f44c395f6c8 in futex (val3=0, uaddr2=0x0, timeout=0x0, val=-1, op=0, uaddr=0x7f44c3b64288 ) at ../include/urcu/futex.h:65 #2 futex_noasync (timeout=0x0, uaddr2=0x0, val3=0, val=-1, op=0, uaddr=0x7f44c3b64288 ) at ../include/urcu/futex.h:74 #3 wait_gp () at urcu.c:256 #4 wait_for_readers (input_readers=input_readers@entry=0x7f4496ffcba0, cur_snap_readers=cur_snap_readers@entry=0x0, qsreaders=qsreaders@entry=0x7f4496ffcbb0) at urcu.c:339 #5 0x00007f44c395fe49 in synchronize_rcu_memb () at urcu.c:480 #6 0x00007f44c396054d in call_rcu_thread (arg=0x7f4484000be0) at urcu-call-rcu-impl.h:363 #7 0x00007f44c29216db in start_thread (arg=0x7f4496ffd700) at pthread_create.c:463 #8 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 15 (Thread 0x7f44977fe700 (LWP 2560)): #0 __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 #1 0x00007f44c2924023 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x7f4480062590) at ../nptl/pthread_mutex_lock.c:78 #2 0x000055c8f4a08e81 in ust_consumer_metadata_request (socket=socket@entry=0x55c8f4c806a8 ) at ust-consumer.c:536 #3 0x000055c8f49f1fdf in thread_consumer_management (data=) at manage-consumer.c:340 #4 0x000055c8f49eb17e in launch_thread (data=0x7f44a0003980) at thread.c:75 #5 0x00007f44c29216db in start_thread (arg=0x7f44977fe700) at pthread_create.c:463 #6 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 14 (Thread 0x7f4497fff700 (LWP 2540)): #0 0x00007f44c264abb7 in epoll_wait (epfd=63, events=events@entry=0x7f448c000c00, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f4497ffeb60, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f49f0601 in thread_kernel_management (data=0x55c8f5cc32a0) at manage-kernel.c:242 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc3330) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f4497fff700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 13 (Thread 0x7f44acff9700 (LWP 2539)): #0 0x00007f44c264abb7 in epoll_wait (epfd=55, events=events@entry=0x7f4498000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44acff8b60, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f4a0bc0b in thread_agent_management (data=) at agent-thread.c:387 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc30c0) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44acff9700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7f44ad7fa700 (LWP 2538)): #0 0x00007f44c264abb7 in epoll_wait (epfd=59, events=events@entry=0x7f4490009d60, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44ad7f9b60, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f4a095b8 in thread_application_notification (data=) at notify-apps.c:89 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc2e40) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44ad7fa700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 11 (Thread 0x7f44adffb700 (LWP 2537)): #0 __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 #1 0x00007f44c2924023 in __GI___pthread_mutex_lock (mutex=0x55c8f4c80708 ) at ../nptl/pthread_mutex_lock.c:78 #2 0x000055c8f49c1987 in consumer_close_metadata (socket=0x7f44a00151d0, metadata_key=268) at consumer.c:1319 #3 0x000055c8f49fa495 in close_metadata (registry=registry@entry=0x7f4480062590, consumer=0x7f44a001b9a0) at ust-app.c:771 #4 0x000055c8f49fe972 in ust_app_unregister (sock=sock@entry=64) at ust-app.c:3512 #5 0x000055c8f49eff65 in thread_application_management (data=) at manage-apps.c:181 #6 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc2bd0) at thread.c:75 #7 0x00007f44c29216db in start_thread (arg=0x7f44adffb700) at pthread_create.c:463 #8 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 10 (Thread 0x7f44ae7fc700 (LWP 2536)): #0 0x00007f44c264abb7 in epoll_wait (epfd=50, events=events@entry=0x7f44a4000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44ae7fb540, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f49ef118 in thread_application_registration (data=0x55c8f5cc28b0) at register.c:221 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc2960) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44ae7fc700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 9 (Thread 0x7f44aeffd700 (LWP 2535)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x000055c8f4a1c777 in futex (val3=0, uaddr2=0x0, timeout=0x0, val=-1, op=0, uaddr=0x55c8f4c80cc0 ) at /usr/local/include/urcu/futex.h:65 #2 futex_async (timeout=0x0, uaddr2=0x0, val3=0, val=-1, op=0, uaddr=0x55c8f4c80cc0 ) at /usr/local/include/urcu/futex.h:97 #3 futex_nto1_wait (futex=0x55c8f4c80cc0 ) at futex.c:90 #4 0x000055c8f49ee181 in thread_dispatch_ust_registration (data=0x55c8f5cc26b0) at dispatch.c:453 #5 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc26d0) at thread.c:75 #6 0x00007f44c29216db in start_thread (arg=0x7f44aeffd700) at pthread_create.c:463 #7 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7f44af7fe700 (LWP 2534)): #0 0x00007f44c292c567 in __libc_recvmsg (fd=fd@entry=69, msg=msg@entry=0x7f44af7e8e80, flags=flags@entry=16384) at ../sysdeps/unix/sysv/linux/recvmsg.c:28 #1 0x000055c8f4a1fe08 in lttng_recvmsg_nosigpipe (msg=0x7f44af7e8e80, sockfd=69) at ../../src/common/compat/socket.h:36 #2 lttcomm_recv_unix_sock (sock=sock@entry=69, buf=buf@entry=0x7f44af7e901c, len=len@entry=4) at unix.c:202 #3 0x000055c8f49be578 in consumer_socket_recv (socket=socket@entry=0x7f44a00151d0, msg=msg@entry=0x7f44af7e901c, len=len@entry=4) at consumer.c:106 #4 0x000055c8f49c12b0 in consumer_is_data_pending (session_id=36, consumer=0x7f44a001b9a0) at consumer.c:1213 #5 0x000055c8f49ce90c in cmd_data_pending (session=0x7f44a0007e00) at cmd.c:3513 #6 0x000055c8f49af3c8 in process_client_msg (cmd_ctx=0x7f44a0002e50, sock=sock@entry=72, sock_error=sock_error@entry=0x7f44af7fd464) at client.c:1701 #7 0x000055c8f49ed18e in thread_manage_clients (data=) at client.c:2270 #8 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc24d0) at thread.c:75 #9 0x00007f44c29216db in start_thread (arg=0x7f44af7fe700) at pthread_create.c:463 #10 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7f44affff700 (LWP 2533)): #0 0x00007f44c264abb7 in epoll_wait (epfd=42, events=events@entry=0x7f44a8000b20, maxevents=3, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44afffeb60, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f49e7b47 in thread_rotation (data=0x55c8f5cc21f0) at rotation-thread.c:958 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc2280) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44affff700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7f44bcdf5700 (LWP 2532)): #0 0x00007f44c256926c in __GI___sigtimedwait (set=, set@entry=0x7f44bcdf4a80, info=info@entry=0x7f44bcdf4b00, timeout=timeout@entry=0x0) at ../sysdeps/unix/sysv/linux/sigtimedwait.c:42 #1 0x00007f44c25692e7 in __GI___sigwaitinfo (set=set@entry=0x7f44bcdf4a80, info=info@entry=0x7f44bcdf4b00) at ../sysdeps/unix/sysv/linux/sigwaitinfo.c:25 #2 0x000055c8f49ea50e in thread_timer (data=0x7ffc52196608) at timer.c:370 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc2010) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44bcdf5700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7f44bd5f6700 (LWP 2531)): #0 0x00007f44c264abb7 in epoll_wait (epfd=37, events=events@entry=0x7f44b40036a0, maxevents=6, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44bd5f5b28, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f49dbf6c in thread_notification (data=0x55c8f5cc1d40) at notification-thread.c:546 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc1e30) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44bd5f6700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7f44bddf7700 (LWP 2530)): #0 0x00007f44c264abb7 in epoll_wait (epfd=32, events=events@entry=0x7f44b0000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44bddf6b60, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f49ebd79 in thread_manage_health (data=) at health.c:143 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cc1b60) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44bddf7700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7f44bee3a700 (LWP 2382)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f44c2d4369d in futex (val3=0, uaddr2=0x0, timeout=0x0, val=-1, op=0, uaddr=0x55c8f5cbc660) at ../include/urcu/futex.h:65 #2 futex_async (timeout=0x0, uaddr2=0x0, val3=0, val=-1, op=0, uaddr=0x55c8f5cbc660) at ../include/urcu/futex.h:97 #3 futex_wait (futex=0x55c8f5cbc660) at workqueue.c:141 #4 0x00007f44c2d43bb5 in futex_wait (futex=0x55c8f5cbc660) at ../include/urcu/static/wfcqueue.h:255 #5 workqueue_thread (arg=0x55c8f5cbc620) at workqueue.c:242 #6 0x00007f44c29216db in start_thread (arg=0x7f44bee3a700) at pthread_create.c:463 #7 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7f44bf63b700 (LWP 2381)): #0 0x00007f44c264abb7 in epoll_wait (epfd=19, events=events@entry=0x7f44b8000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x000055c8f4a2dd64 in compat_epoll_wait (events=events@entry=0x7f44bf63ab60, timeout=timeout@entry=-1) at compat-epoll.c:275 #2 0x000055c8f49d4603 in thread_ht_cleanup (data=) at ht-cleanup.c:134 #3 0x000055c8f49eb17e in launch_thread (data=0x55c8f5cbc210) at thread.c:75 #4 0x00007f44c29216db in start_thread (arg=0x7f44bf63b700) at pthread_create.c:463 #5 0x00007f44c264a88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7f44c41b1980 (LWP 2379)): #0 0x00007f44c264003f in __GI___select (nfds=10, readfds=readfds@entry=0x7ffc52196450, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x0) at ../sysdeps/unix/sysv/linux/select.c:41 #1 0x000055c8f49eaf95 in sessiond_wait_for_quit_pipe (timeout_us=) at thread-utils.c:89 #2 0x000055c8f49b2d1b in main (argc=, argv=) at main.c:1823