Thread 16 (Thread 0x7f1008ff9700 (LWP 29604)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f1028f446c8 in futex (val3=0, uaddr2=0x0, timeout=0x0, val=-1, op=0, uaddr=0x7f1029149288 <rcu_gp_memb+8>) at ../include/urcu/futex.h:65
#2  futex_noasync (timeout=0x0, uaddr2=0x0, val3=0, val=-1, op=0, uaddr=0x7f1029149288 <rcu_gp_memb+8>) at ../include/urcu/futex.h:74
#3  wait_gp () at urcu.c:256
#4  wait_for_readers (input_readers=input_readers@entry=0x7f1008ff8ba0, cur_snap_readers=cur_snap_readers@entry=0x0, qsreaders=qsreaders@entry=0x7f1008ff8bb0) at urcu.c:339
#5  0x00007f1028f44e49 in synchronize_rcu_memb () at urcu.c:480
#6  0x00007f1028f4554d in call_rcu_thread (arg=0x7f0fec000be0) at urcu-call-rcu-impl.h:363
#7  0x00007f1027f066db in start_thread (arg=0x7f1008ff9700) at pthread_create.c:463
#8  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f10097fa700 (LWP 29574)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f1027f09023 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x7f0fe8001c80) at ../nptl/pthread_mutex_lock.c:78
#2  0x0000562bcc186e81 in ust_consumer_metadata_request (socket=socket@entry=0x562bcc3fe6a8 <ustconsumer64_data+72>) at ust-consumer.c:536
#3  0x0000562bcc16ffdf in thread_consumer_management (data=<optimized out>) at manage-consumer.c:340
#4  0x0000562bcc16917e in launch_thread (data=0x7f1010003980) at thread.c:75
#5  0x00007f1027f066db in start_thread (arg=0x7f10097fa700) at pthread_create.c:463
#6  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f1009ffb700 (LWP 28810)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=65, events=events@entry=0x7f0ff8000c00, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f1009ffab60, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc16e601 in thread_kernel_management (data=0x562bcc5062a0) at manage-kernel.c:242
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc506330) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f1009ffb700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f100a7fc700 (LWP 28809)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=59, events=events@entry=0x7f0ff4000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f100a7fbb60, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc189c0b in thread_agent_management (data=<optimized out>) at agent-thread.c:387
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc5060c0) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f100a7fc700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f100affd700 (LWP 28808)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=55, events=events@entry=0x7f1000014ed0, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f100affcb60, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc1875b8 in thread_application_notification (data=<optimized out>) at notify-apps.c:89
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc505e40) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f100affd700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f100b7fe700 (LWP 28807)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f1027f09023 in __GI___pthread_mutex_lock (mutex=0x562bcc3fe708 <ustconsumer64_data+168>) at ../nptl/pthread_mutex_lock.c:78
#2  0x0000562bcc13f987 in consumer_close_metadata (socket=0x7f1010015950, metadata_key=22) at consumer.c:1319
#3  0x0000562bcc178495 in close_metadata (registry=registry@entry=0x7f0fe8001c80, consumer=0x7f101001b9a0) at ust-app.c:771
#4  0x0000562bcc17c972 in ust_app_unregister (sock=sock@entry=63) at ust-app.c:3512
#5  0x0000562bcc16df65 in thread_application_management (data=<optimized out>) at manage-apps.c:181
#6  0x0000562bcc16917e in launch_thread (data=0x562bcc505bd0) at thread.c:75
#7  0x00007f1027f066db in start_thread (arg=0x7f100b7fe700) at pthread_create.c:463
#8  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f100bfff700 (LWP 28806)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=50, events=events@entry=0x7f1004000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f100bffe540, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc16d118 in thread_application_registration (data=0x562bcc5058b0) at register.c:221
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc505960) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f100bfff700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f1020bd7700 (LWP 28805)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f1027f09023 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x562bcc3fd020 <ltt_session_list>) at ../nptl/pthread_mutex_lock.c:78
#2  0x0000562bcc1416ac in session_lock_list () at session.c:153
#3  0x0000562bcc16bd50 in thread_dispatch_ust_registration (data=0x562bcc5056b0) at dispatch.c:385
#4  0x0000562bcc16917e in launch_thread (data=0x562bcc5056d0) at thread.c:75
#5  0x00007f1027f066db in start_thread (arg=0x7f1020bd7700) at pthread_create.c:463
#6  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f10213d8700 (LWP 28804)):
#0  0x00007f1027f11567 in __libc_recvmsg (fd=fd@entry=69, msg=msg@entry=0x7f10213c2e80, flags=flags@entry=16384) at ../sysdeps/unix/sysv/linux/recvmsg.c:28
#1  0x0000562bcc19de08 in lttng_recvmsg_nosigpipe (msg=0x7f10213c2e80, sockfd=69) at ../../src/common/compat/socket.h:36
#2  lttcomm_recv_unix_sock (sock=sock@entry=69, buf=buf@entry=0x7f10213c301c, len=len@entry=4) at unix.c:202
#3  0x0000562bcc13c578 in consumer_socket_recv (socket=socket@entry=0x7f1010015950, msg=msg@entry=0x7f10213c301c, len=len@entry=4) at consumer.c:106
#4  0x0000562bcc13f2b0 in consumer_is_data_pending (session_id=10, consumer=0x7f101001b9a0) at consumer.c:1213
#5  0x0000562bcc14c90c in cmd_data_pending (session=0x7f1010007f40) at cmd.c:3513
#6  0x0000562bcc12d3c8 in process_client_msg (cmd_ctx=0x7f101001a310, sock=sock@entry=72, sock_error=sock_error@entry=0x7f10213d7464) at client.c:1701
#7  0x0000562bcc16b18e in thread_manage_clients (data=<optimized out>) at client.c:2270
#8  0x0000562bcc16917e in launch_thread (data=0x562bcc5054d0) at thread.c:75
#9  0x00007f1027f066db in start_thread (arg=0x7f10213d8700) at pthread_create.c:463
#10 0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f1021bd9700 (LWP 28803)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=43, events=events@entry=0x7f100c000b20, maxevents=3, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f1021bd8b60, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc165b47 in thread_rotation (data=0x562bcc5051f0) at rotation-thread.c:958
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc505280) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f1021bd9700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f10223da700 (LWP 28802)):
#0  0x00007f1027b4e26c in __GI___sigtimedwait (set=<optimized out>, set@entry=0x7f10223d9a80, info=info@entry=0x7f10223d9b00, timeout=timeout@entry=0x0) at ../sysdeps/unix/sysv/linux/sigtimedwait.c:42
#1  0x00007f1027b4e2e7 in __GI___sigwaitinfo (set=set@entry=0x7f10223d9a80, info=info@entry=0x7f10223d9b00) at ../sysdeps/unix/sysv/linux/sigwaitinfo.c:25
#2  0x0000562bcc16850e in thread_timer (data=0x7fff4931eb28) at timer.c:370
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc505010) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f10223da700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f1022bdb700 (LWP 28801)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=37, events=events@entry=0x7f10180036a0, maxevents=6, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f1022bdab28, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc159f6c in thread_notification (data=0x562bcc504d40) at notification-thread.c:546
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc504e30) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f1022bdb700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f10233dc700 (LWP 28800)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=32, events=events@entry=0x7f1014000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f10233dbb60, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc169d79 in thread_manage_health (data=<optimized out>) at health.c:143
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc504b60) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f10233dc700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f102441f700 (LWP 28645)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f102832869d in futex (val3=0, uaddr2=0x0, timeout=0x0, val=-1, op=0, uaddr=0x562bcc4ff660) at ../include/urcu/futex.h:65
#2  futex_async (timeout=0x0, uaddr2=0x0, val3=0, val=-1, op=0, uaddr=0x562bcc4ff660) at ../include/urcu/futex.h:97
#3  futex_wait (futex=0x562bcc4ff660) at workqueue.c:141
#4  0x00007f1028328bb5 in futex_wait (futex=0x562bcc4ff660) at ../include/urcu/static/wfcqueue.h:255
#5  workqueue_thread (arg=0x562bcc4ff620) at workqueue.c:242
#6  0x00007f1027f066db in start_thread (arg=0x7f102441f700) at pthread_create.c:463
#7  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f1024c20700 (LWP 28644)):
#0  0x00007f1027c2fbb7 in epoll_wait (epfd=19, events=events@entry=0x7f101c000b20, maxevents=2, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1  0x0000562bcc1abd64 in compat_epoll_wait (events=events@entry=0x7f1024c1fb60, timeout=timeout@entry=-1) at compat-epoll.c:275
#2  0x0000562bcc152603 in thread_ht_cleanup (data=<optimized out>) at ht-cleanup.c:134
#3  0x0000562bcc16917e in launch_thread (data=0x562bcc4ff210) at thread.c:75
#4  0x00007f1027f066db in start_thread (arg=0x7f1024c20700) at pthread_create.c:463
#5  0x00007f1027c2f88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f1029796980 (LWP 28642)):
#0  0x00007f1027c2503f in __GI___select (nfds=10, readfds=readfds@entry=0x7fff4931e970, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x0) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x0000562bcc168f95 in sessiond_wait_for_quit_pipe (timeout_us=<optimized out>) at thread-utils.c:89
#2  0x0000562bcc130d1b in main (argc=<optimized out>, argv=<optimized out>) at main.c:1823