qemu-2.0 occasionally segfaults with Windows 2012R2 This is with qemu-2.0 (KVM), linux kernel 3.10.35, using qcow2 images directly accessed via libgfapi (glusterfs-3.4.2). Such a segfaults happens roughly once every 2 weeks and only for VMs with high network and/or disk activity. Guest OS with which we could reproduce this was always Windows Server 2012R2 using virtio-win-0.1-75. vhost-net is active, the disks are attached as virtio-blk devices (see also XML definition from libvirt further below) Following are the backtraces for all threads: (gdb) threads Undefined command: "threads". Try "help". (gdb) info threads Id Target Id Frame 32 Thread 0x7f5c1affd700 (LWP 16783) 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 31 Thread 0x7f5bfe2fc700 (LWP 19906) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 30 Thread 0x7f5c45f87880 (LWP 16769) 0x00007f5c42637ff6 in __GI_ppoll (fds=0x7f5c48bcd750, nfds=74, timeout=0x7fff92d94e60, timeout@entry=0x7fff92d94f20, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:57 29 Thread 0x7f5c1bfff700 (LWP 16781) 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 28 Thread 0x7f5c28de1700 (LWP 16780) 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 27 Thread 0x7f5c1a7fc700 (LWP 16784) __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 26 Thread 0x7f5c295e2700 (LWP 16779) __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 25 Thread 0x7f57b2ffd700 (LWP 18170) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 24 Thread 0x7f57c97fa700 (LWP 31326) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 23 Thread 0x7f57b3fff700 (LWP 5016) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 22 Thread 0x7f57c9ffb700 (LWP 25116) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 21 Thread 0x7f5c31f7c700 (LWP 16776) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 20 Thread 0x7f5c1b7fe700 (LWP 16782) __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 19 Thread 0x7f57ca7fc700 (LWP 24029) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 18 Thread 0x7f57cbfff700 (LWP 19985) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 17 Thread 0x7f57c8ff9700 (LWP 31327) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 16 Thread 0x7f5bfcefa700 (LWP 19924) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 15 Thread 0x7f5c30ee7700 (LWP 16777) 0x00007f5c426421b3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 14 Thread 0x7f5c3dc17700 (LWP 16772) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 13 Thread 0x7f5bfd6fb700 (LWP 19907) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 12 Thread 0x7f5c18bff700 (LWP 16788) 0x00007f5c42637ded in poll () at ../sysdeps/unix/syscall-template.S:81 11 Thread 0x7f5c19ffb700 (LWP 16785) 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 10 Thread 0x7f57caffd700 (LWP 20235) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 9 Thread 0x7f5c2bfff700 (LWP 16778) 0x00007f5c4290e43d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 8 Thread 0x7f5bfecfd700 (LWP 17854) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 7 Thread 0x7f5c3e418700 (LWP 16771) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 6 Thread 0x7f57b37fe700 (LWP 18169) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 5 Thread 0x7f5c3bb57700 (LWP 16774) 0x00007f5c4290e43d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 4 Thread 0x7f5c3c97f700 (LWP 16773) 0x00007f5c426421b3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 3 Thread 0x7f5c3277d700 (LWP 16775) pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 2 Thread 0x7f5c197fa700 (LWP 16786) 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 * 1 Thread 0x7f57cb7fe700 (LWP 19986) event_notifier_set (e=0x124) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/util/event_notifier-posix.c:97 (gdb) bt #0 event_notifier_set (e=0x124) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/util/event_notifier-posix.c:97 #1 0x00007f5c457145d1 in ?? () from /usr/lib64/libgfapi.so.0 #2 0x00007f5c454d1d0a in synctask_wrap () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c4259d760 in ?? () from /lib64/libc.so.6 #4 0x0000000000000000 in ?? () (gdb) thread 2 [Switching to thread 2 (Thread 0x7f5c197fa700 (LWP 16786))] #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c4627b5e9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f5c48b8ccd0, type=type@entry=44672) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1790 #2 0x00007f5c4627b725 in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b8ccd0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1675 #3 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b8ccd0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #4 0x00007f5c42906fda in start_thread (arg=0x7f5c197fa700) at pthread_create.c:308 #5 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 3 [Switching to thread 3 (Thread 0x7f5c3277d700 (LWP 16775))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5c3277d700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 4 [Switching to thread 4 (Thread 0x7f5c3c97f700 (LWP 16773))] #0 0x00007f5c426421b3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c426421b3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c454ea917 in ?? () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c45712584 in ?? () from /usr/lib64/libgfapi.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5c3c97f700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 5 [Switching to thread 5 (Thread 0x7f5c3bb57700 (LWP 16774))] #0 0x00007f5c4290e43d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c4290e43d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c454b4874 in gf_timer_proc () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c42906fda in start_thread (arg=0x7f5c3bb57700) at pthread_create.c:308 #3 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 6 [Switching to thread 6 (Thread 0x7f57b37fe700 (LWP 18169))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57b37fe700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 7 [Switching to thread 7 (Thread 0x7f5c3e418700 (LWP 16771))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5c3e418700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 8 [Switching to thread 8 (Thread 0x7f5bfecfd700 (LWP 17854))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5bfecfd700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 9 [Switching to thread 9 (Thread 0x7f5c2bfff700 (LWP 16778))] #0 0x00007f5c4290e43d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c4290e43d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c454b4874 in gf_timer_proc () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c42906fda in start_thread (arg=0x7f5c2bfff700) at pthread_create.c:308 #3 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 10 [Switching to thread 10 (Thread 0x7f57caffd700 (LWP 20235))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57caffd700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 11 [Switching to thread 11 (Thread 0x7f5c19ffb700 (LWP 16785))] #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c4627b5e9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f5c48b7c720, type=type@entry=44672) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1790 #2 0x00007f5c4627b725 in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b7c720) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1675 #3 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b7c720) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #4 0x00007f5c42906fda in start_thread (arg=0x7f5c19ffb700) at pthread_create.c:308 #5 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 12 [Switching to thread 12 (Thread 0x7f5c18bff700 (LWP 16788))] #0 0x00007f5c42637ded in poll () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c42637ded in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c43521494 in ?? () from /usr/lib64/libspice-server.so.1 #2 0x00007f5c42906fda in start_thread (arg=0x7f5c18bff700) at pthread_create.c:308 #3 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 13 [Switching to thread 13 (Thread 0x7f5bfd6fb700 (LWP 19907))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5bfd6fb700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 14 [Switching to thread 14 (Thread 0x7f5c3dc17700 (LWP 16772))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5c3dc17700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 15 [Switching to thread 15 (Thread 0x7f5c30ee7700 (LWP 16777))] #0 0x00007f5c426421b3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c426421b3 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c454ea917 in ?? () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c45712584 in ?? () from /usr/lib64/libgfapi.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5c30ee7700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 16 [Switching to thread 16 (Thread 0x7f5bfcefa700 (LWP 19924))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5bfcefa700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 17 [Switching to thread 17 (Thread 0x7f57c8ff9700 (LWP 31327))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57c8ff9700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 18 [Switching to thread 18 (Thread 0x7f57cbfff700 (LWP 19985))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57cbfff700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 19 [Switching to thread 19 (Thread 0x7f57ca7fc700 (LWP 24029))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57ca7fc700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 20 [Switching to thread 20 (Thread 0x7f5c1b7fe700 (LWP 16782))] #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 135 ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: No such file or directory. (gdb) bt #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 #1 0x00007f5c4290923c in _L_lock_1001 () from /lib64/libpthread.so.0 #2 0x00007f5c4290908b in __GI___pthread_mutex_lock (mutex=0x7f5c46b87dc0 ) at pthread_mutex_lock.c:64 #3 0x00007f5c4631c6c9 in qemu_mutex_lock (mutex=mutex@entry=0x7f5c46b87dc0 ) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/util/qemu-thread-posix.c:76 #4 0x00007f5c46221c50 in qemu_mutex_lock_iothread () at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:1043 #5 0x00007f5c4627b72d in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b4b610) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1677 #6 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b4b610) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #7 0x00007f5c42906fda in start_thread (arg=0x7f5c1b7fe700) at pthread_create.c:308 #8 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 21 [Switching to thread 21 (Thread 0x7f5c31f7c700 (LWP 16776))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5c31f7c700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 22 [Switching to thread 22 (Thread 0x7f57c9ffb700 (LWP 25116))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57c9ffb700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 23 [Switching to thread 23 (Thread 0x7f57b3fff700 (LWP 5016))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57b3fff700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 24 [Switching to thread 24 (Thread 0x7f57c97fa700 (LWP 31326))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57c97fa700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 25 [Switching to thread 25 (Thread 0x7f57b2ffd700 (LWP 18170))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f57b2ffd700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 26 [Switching to thread 26 (Thread 0x7f5c295e2700 (LWP 16779))] #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 135 ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: No such file or directory. (gdb) bt #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 #1 0x00007f5c4290923c in _L_lock_1001 () from /lib64/libpthread.so.0 #2 0x00007f5c4290908b in __GI___pthread_mutex_lock (mutex=0x7f5c46b87dc0 ) at pthread_mutex_lock.c:64 #3 0x00007f5c4631c6c9 in qemu_mutex_lock (mutex=mutex@entry=0x7f5c46b87dc0 ) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/util/qemu-thread-posix.c:76 #4 0x00007f5c46221c50 in qemu_mutex_lock_iothread () at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:1043 #5 0x00007f5c4627b72d in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48aefab0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1677 #6 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48aefab0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #7 0x00007f5c42906fda in start_thread (arg=0x7f5c295e2700) at pthread_create.c:308 #8 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 27 [Switching to thread 27 (Thread 0x7f5c1a7fc700 (LWP 16784))] #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 135 in ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S (gdb) bt #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 #1 0x00007f5c4290923c in _L_lock_1001 () from /lib64/libpthread.so.0 #2 0x00007f5c4290908b in __GI___pthread_mutex_lock (mutex=0x7f5c46b87dc0 ) at pthread_mutex_lock.c:64 #3 0x00007f5c4631c6c9 in qemu_mutex_lock (mutex=mutex@entry=0x7f5c46b87dc0 ) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/util/qemu-thread-posix.c:76 #4 0x00007f5c46221c50 in qemu_mutex_lock_iothread () at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:1043 #5 0x00007f5c4627b72d in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b6c170) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1677 #6 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b6c170) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #7 0x00007f5c42906fda in start_thread (arg=0x7f5c1a7fc700) at pthread_create.c:308 #8 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 28 [Switching to thread 28 (Thread 0x7f5c28de1700 (LWP 16780))] #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c4627b5e9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f5c48b2aab0, type=type@entry=44672) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1790 #2 0x00007f5c4627b725 in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b2aab0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1675 #3 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b2aab0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #4 0x00007f5c42906fda in start_thread (arg=0x7f5c28de1700) at pthread_create.c:308 #5 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 29 [Switching to thread 29 (Thread 0x7f5c1bfff700 (LWP 16781))] #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 81 in ../sysdeps/unix/syscall-template.S (gdb) bt #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c4627b5e9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f5c48b3b060, type=type@entry=44672) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1790 #2 0x00007f5c4627b725 in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b3b060) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1675 #3 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b3b060) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #4 0x00007f5c42906fda in start_thread (arg=0x7f5c1bfff700) at pthread_create.c:308 #5 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 30 [Switching to thread 30 (Thread 0x7f5c45f87880 (LWP 16769))] #0 0x00007f5c42637ff6 in __GI_ppoll (fds=0x7f5c48bcd750, nfds=74, timeout=0x7fff92d94e60, timeout@entry=0x7fff92d94f20, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:57 57 ../sysdeps/unix/sysv/linux/ppoll.c: No such file or directory. (gdb) bt #0 0x00007f5c42637ff6 in __GI_ppoll (fds=0x7f5c48bcd750, nfds=74, timeout=0x7fff92d94e60, timeout@entry=0x7fff92d94f20, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:57 #1 0x00007f5c461d5c39 in ppoll (__ss=0x0, __timeout=0x7fff92d94f20, __nfds=, __fds=) at /usr/include/bits/poll2.h:77 #2 qemu_poll_ns (fds=, nfds=, timeout=timeout@entry=313102) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/qemu-timer.c:316 #3 0x00007f5c46199154 in os_host_main_loop_wait (timeout=313102) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/main-loop.c:229 #4 main_loop_wait (nonblocking=) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/main-loop.c:484 #5 0x00007f5c460457ae in main_loop () at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/vl.c:2051 #6 main (argc=, argv=, envp=) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/vl.c:4507 (gdb) thread 31 [Switching to thread 31 (Thread 0x7f5bfe2fc700 (LWP 19906))] #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 238 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: No such file or directory. (gdb) bt #0 pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x00007f5c454d34e3 in syncenv_task () from /usr/lib64/libglusterfs.so.0 #2 0x00007f5c454d3920 in syncenv_processor () from /usr/lib64/libglusterfs.so.0 #3 0x00007f5c42906fda in start_thread (arg=0x7f5bfe2fc700) at pthread_create.c:308 #4 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 (gdb) thread 32 [Switching to thread 32 (Thread 0x7f5c1affd700 (LWP 16783))] #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007f5c42639607 in ioctl () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5c4627b5e9 in kvm_vcpu_ioctl (cpu=cpu@entry=0x7f5c48b5bbc0, type=type@entry=44672) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1790 #2 0x00007f5c4627b725 in kvm_cpu_exec (cpu=cpu@entry=0x7f5c48b5bbc0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/kvm-all.c:1675 #3 0x00007f5c4622095c in qemu_kvm_cpu_thread_fn (arg=0x7f5c48b5bbc0) at /var/tmp/portage/app-emulation/qemu-2.0.0/work/qemu-2.0.0/cpus.c:873 #4 0x00007f5c42906fda in start_thread (arg=0x7f5c1affd700) at pthread_create.c:308 #5 0x00007f5c42641b1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 XML definition from libvirt: b1032388-abb8-4176-897b-0c30a1a73714 b1032388-abb8-4176-897b-0c30a1a73714 16777216 16777216 8 /machine hvm destroy restart destroy /usr/bin/qemu-kvm