(gdb) thread apply all bt Thread 30 (Thread 0x7f50454f6700 (LWP 47271)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7f50c044dbc0) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 do_futex_wait (sem=sem@entry=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007f50e8ce1098 in __new_sem_wait_slow (sem=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007f50bbac8b42 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbc32ac5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbc31a41 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 29 (Thread 0x7f50455f8700 (LWP 47270)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7f50c044dbc0) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 do_futex_wait (sem=sem@entry=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007f50e8ce1098 in __new_sem_wait_slow (sem=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007f50bbac8b42 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbc32ac5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbc31a41 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 28 (Thread 0x7f50456fa700 (LWP 47269)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7f50c044dbc0) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 do_futex_wait (sem=sem@entry=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007f50e8ce1098 in __new_sem_wait_slow (sem=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007f50bbac8b42 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbc32ac5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbc31a41 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 27 (Thread 0x7f50457fb700 (LWP 47268)): #0 0x00007f50bb3b46b8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #1 0x00007f50bb3b547d in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #2 0x00007f50bb463415 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #3 0x00007f50bb4670e7 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb391871 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb46f5f1 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb4707c8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bbb9d3bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb9d790 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #11 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #12 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 26 (Thread 0x7f5059b10700 (LWP 47202)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x5620045e2318) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5620045e22c8, cond=0x5620045e22f0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5620045e22f0, mutex=0x5620045e22c8) at pthread_cond_wait.c:638 #3 0x00007f505b8059fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007f505b805617 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 25 (Thread 0x7f505a311700 (LWP 47201)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x5620045e2318) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5620045e22c8, cond=0x5620045e22f0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5620045e22f0, mutex=0x5620045e22c8) at pthread_cond_wait.c:638 #3 0x00007f505b8059fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007f505b805617 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 24 (Thread 0x7f505ab12700 (LWP 47200)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x5620045e231c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5620045e22c8, cond=0x5620045e22f0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5620045e22f0, mutex=0x5620045e22c8) at pthread_cond_wait.c:638 #3 0x00007f505b8059fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007f505b805617 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 23 (Thread 0x7f505b313700 (LWP 47199)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x5620045e231c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x5620045e22c8, cond=0x5620045e22f0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x5620045e22f0, mutex=0x5620045e22c8) at pthread_cond_wait.c:638 #3 0x00007f505b8059fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #4 0x00007f505b805617 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 22 (Thread 0x7f50a0645700 (LWP 47195)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f50a061f870, clockid=, expected=0, futex_word=0x7f50c068177c) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 __pthread_cond_wait_common (abstime=0x7f50a061f870, clockid=, mutex=0x7f50c0681728, cond=0x7f50c0681750) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f50c0681750, mutex=0x7f50c0681728, abstime=0x7f50a061f870) at pthread_cond_wait.c:656 #3 0x00007f50bba12f56 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7f99 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c89b9 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb92481 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bbb92529 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #11 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 21 (Thread 0x7f508cffd700 (LWP 47194)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x7f50c067f07c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f50c067f028, cond=0x7f50c067f050) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f50c067f050, mutex=0x7f50c067f028) at pthread_cond_wait.c:638 #3 0x00007f50bba154c3 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7ed8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c89b9 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbac9321 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bbb9d3bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb9d790 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #11 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #12 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 20 (Thread 0x7f508d7fe700 (LWP 47193)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f508d7d8130, clockid=, expected=0, futex_word=0x7f50c065f07c) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 __pthread_cond_wait_common (abstime=0x7f508d7d8130, clockid=, mutex=0x7f50c065f028, cond=0x7f50c065f050) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f50c065f050, mutex=0x7f50c065f028, abstime=0x7f508d7d8130) at pthread_cond_wait.c:656 #3 0x00007f50bba12f56 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9e7a04 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbb5b9b2 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb751366 in JVM_MonitorWait () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50a37b271b in ?? () #8 0x00007f508d7d8380 in ?? () #9 0x00007f508d7d8330 in ?? () #10 0x0000000000000000 in ?? () Thread 19 (Thread 0x7f508dfff700 (LWP 47192)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f508dfd97d0, clockid=, expected=0, futex_word=0x7f50c0627b78) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 __pthread_cond_wait_common (abstime=0x7f508dfd97d0, clockid=, mutex=0x7f50c0627b28, cond=0x7f50c0627b50) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f50c0627b50, mutex=0x7f50c0627b28, abstime=0x7f508dfd97d0) at pthread_cond_wait.c:656 #3 0x00007f50bba12f56 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7f99 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c89b9 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb53820 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bbb9d3bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb9d790 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #11 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #12 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 18 (Thread 0x7f50a0777700 (LWP 47191)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f50a07516c0, clockid=, expected=0, futex_word=0x7f50c0625a7c) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 __pthread_cond_wait_common (abstime=0x7f50a07516c0, clockid=, mutex=0x7f50c0625a28, cond=0x7f50c0625a50) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f50c0625a50, mutex=0x7f50c0625a28, abstime=0x7f50a07516c0) at pthread_cond_wait.c:656 #3 0x00007f50bba12f56 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7f99 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c8abe in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb46d721 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bb4706bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb9d3bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bbb9d790 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #11 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #12 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #13 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 17 (Thread 0x7f50a0878700 (LWP 47190)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x7f50c062387c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f50c0623828, cond=0x7f50c0623850) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f50c0623850, mutex=0x7f50c0623828) at pthread_cond_wait.c:638 #3 0x00007f50bba154c3 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7c30 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c8488 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbabb899 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bbb9397c in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bb3ca597 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bbbb880b in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50bbbaec16 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #11 0x00007f50bb3a8306 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #12 0x00007f50bba62f5c in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #13 0x00007f50bba5f905 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #14 0x00007f50bb8f4216 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #15 0x00007f50bb4657e7 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #16 0x00007f50bb4668b5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #17 0x00007f50bb391871 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #18 0x00007f50bb46f5f1 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #19 0x00007f50bb4707c8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #20 0x00007f50bbb9d3bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #21 0x00007f50bbb9d790 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #22 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #23 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #24 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #25 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 16 (Thread 0x7f50ddc5e700 (LWP 47189)): #0 0x00007f50e8ce1fdf in __libc_accept (fd=21, addr=..., len=0x7f50ddc3877c) at ../sysdeps/unix/sysv/linux/accept.c:26 #1 0x00007f50bb2afcaf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #2 0x00007f50bb2afe33 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #3 0x00007f50bb2ae9e5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbb9d3bf in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbb9d790 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 15 (Thread 0x7f50dd45d700 (LWP 47188)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x7f50c061d87c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f50c061d828, cond=0x7f50c061d850) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f50c061d850, mutex=0x7f50c061d828) at pthread_cond_wait.c:638 #3 0x00007f50bba154c3 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9e8125 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbb5b9b2 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb751366 in JVM_MonitorWait () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50a37b271b in ?? () #8 0x00007f50dd4373e0 in ?? () #9 0x00000000000000b6 in ?? () #10 0x00007f50c061c800 in ?? () #11 0x00007f50dd437388 in ?? () #12 0x0000000000000000 in ?? () Thread 14 (Thread 0x7f50dac5c700 (LWP 47187)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x7f50c061bd78) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f50c061bd28, cond=0x7f50c061bd50) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f50c061bd50, mutex=0x7f50c061bd28) at pthread_cond_wait.c:638 #3 0x00007f50bba154c3 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7ed8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c8abe in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb758d26 in JVM_WaitForReferencePendingList () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50a37b271b in ?? () #8 0x00007f50dac36498 in ?? () #9 0x00007f50dac36448 in ?? () #10 0x0000000000000000 in ?? () Thread 13 (Thread 0x7f50a097a700 (LWP 47186)): #0 0x00007f50e8bf0927 in sched_yield () at ../sysdeps/unix/syscall-template.S:78 #1 0x00007f50bbabe999 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #2 0x00007f50bbc0c54a in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #3 0x00007f50bbc0cb72 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #7 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7f50a1358700 (LWP 47185)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f50a1332880, clockid=, expected=0, futex_word=0x7f50c059e37c) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 __pthread_cond_wait_common (abstime=0x7f50a1332880, clockid=, mutex=0x7f50c059e328, cond=0x7f50c059e350) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f50c059e350, mutex=0x7f50c059e328, abstime=0x7f50a1332880) at pthread_cond_wait.c:656 #3 0x00007f50bba12f56 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7f99 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c89b9 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb5f31e1 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bb483742 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #11 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 11 (Thread 0x7f50a145a700 (LWP 47184)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x7f50c059c57c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f50c059c528, cond=0x7f50c059c550) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f50c059c550, mutex=0x7f50c059c528) at pthread_cond_wait.c:638 #3 0x00007f50bba154c3 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7ed8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c89b9 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb5ad084 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bb483742 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #11 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 10 (Thread 0x7f50a1960700 (LWP 47183)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7f50c04ac140) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 do_futex_wait (sem=sem@entry=0x7f50c04ac140, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007f50e8ce1098 in __new_sem_wait_slow (sem=0x7f50c04ac140, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007f50bbac8b42 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbc32ac5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbc31a41 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 9 (Thread 0x7f50a1a62700 (LWP 47182)): #0 futex_wait_cancelable (private=0, expected=0, futex_word=0x7f50c04abb7c) at ../sysdeps/unix/sysv/linux/futex-internal.h:80 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f50c04abb28, cond=0x7f50c04abb50) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f50c04abb50, mutex=0x7f50c04abb28) at pthread_cond_wait.c:638 #3 0x00007f50bba154c3 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bb9c7ed8 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bb9c89b9 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bb5aa563 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bb483742 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #9 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #10 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #11 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7f50a36b7700 (LWP 47181)): #0 futex_abstimed_wait_cancelable (private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7f50c044dbc0) at ../sysdeps/unix/sysv/linux/futex-internal.h:208 #1 do_futex_wait (sem=sem@entry=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:112 #2 0x00007f50e8ce1098 in __new_sem_wait_slow (sem=0x7f50c044dbc0, abstime=0x0, clockid=0) at sem_waitcommon.c:184 #3 0x00007f50bbac8b42 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #4 0x00007f50bbc32ac5 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #5 0x00007f50bbc31a41 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #6 0x00007f50bbb98474 in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #7 0x00007f50bba0c01e in ?? () from /usr/lib/jvm/java-11-openjdk-amd64/lib/server/libjvm.so #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7f50d0a29700 (LWP 47109)): #0 0x00007f50e8b484b2 in __GI___sigtimedwait (set=set@entry=0x7f50ea10bcc0 , info=info@entry=0x7f50d0a039e0, timeout=timeout@entry=0x0) at ../sysdeps/unix/sysv/linux/sigtimedwait.c:29 #1 0x00007f50e8ce2c5c in __sigwait (set=set@entry=0x7f50ea10bcc0 , sig=sig@entry=0x7f50d0a03a9c) at ../sysdeps/unix/sysv/linux/sigwait.c:28 #2 0x00007f50e9e68782 in signal_watcher (arg=0x7f50eaf88430 ) at /home/jwe/src/octave-stable/liboctave/wrappers/signal-wrappers.c:697 #3 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #4 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7f50d13a4700 (LWP 47108)): #0 0x00007f50ab2a00b3 in ?? () #1 0x00007f50ab28e280 in ?? () #2 0x00000007e2c24a43 in ?? () #3 0x000000070fc20898 in ?? () #4 0x000000070fc209a0 in ?? () #5 0x000000070fc209c0 in ?? () #6 0x0000000700000001 in ?? () #7 0x000000070fc20898 in ?? () #8 0x000000070fc1e668 in ?? () #9 0x0000000300000002 in ?? () #10 0x0000000470dd3438 in ?? () #11 0x000000070fc200c0 in ?? () #12 0x000000070fc20348 in ?? () #13 0x000000070fc1eb50 in ?? () #14 0x0000000000000000 in ?? () Thread 5 (Thread 0x7f50d1cd1700 (LWP 47106)): #0 0x00007f50e8bfeb4f in __GI___poll (fds=0x7f50bc00ed40, nfds=4, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f50e15e711e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f50e15e723f in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f50e72d8801 in QEventDispatcherGlib::processEvents(QFlags) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f50e728171b in QEventLoop::exec(QFlags) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f50e70c2731 in QThread::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f50d5f504e6 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x00007f50e70c38b2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #9 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7f50d27c4700 (LWP 47105)): #0 0x00007f50e8bfeb4f in __GI___poll (fds=0x5620045ebe50, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f50e15e711e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f50e15e7483 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f50d3804f36 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0 #4 0x00007f50e160fd5d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7f50d2fc5700 (LWP 47104)): #0 0x00007f50e8bfeb4f in __GI___poll (fds=0x5620045d8940, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f50e15e711e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f50e15e723f in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f50e15e7291 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f50e160fd5d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7f50d50fe700 (LWP 47103)): #0 0x00007f50e8bfeb4f in __GI___poll (fds=0x7f50d50d8928, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f50e0597cf2 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007f50e05998ea in xcb_wait_for_event () from /lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007f50d6043ca0 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #4 0x00007f50e70c38b2 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f50e8cd7f27 in start_thread (arg=) at pthread_create.c:479 #6 0x00007f50e8c092ef in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7f50ddc97b80 (LWP 46971)): #0 0x00007f50e8bfeb4f in __GI___poll (fds=0x5620046240b0, nfds=5, timeout=9492) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f50e15e711e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f50e15e723f in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f50e72d8801 in QEventDispatcherGlib::processEvents(QFlags) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f50e728171b in QEventLoop::exec(QFlags) () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f50e72891c2 in QCoreApplication::exec() () from /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f50eb5a3d7d in octave::qt_application::execute (this=this@entry=0x7ffef42287f0) at /home/jwe/src/octave-stable/libgui/src/qt-application.cc:73 #7 0x00005620035f4396 in main (argc=8, argv=0x7ffef4228b08) at /home/jwe/src/octave-stable/src/main-gui.cc:106