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|
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 <qemu_global_mutex>) at pthread_mutex_lock.c:64
#3 0x00007f5c4631c6c9 in qemu_mutex_lock (mutex=mutex@entry=0x7f5c46b87dc0 <qemu_global_mutex>)
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 <qemu_global_mutex>) at pthread_mutex_lock.c:64
#3 0x00007f5c4631c6c9 in qemu_mutex_lock (mutex=mutex@entry=0x7f5c46b87dc0 <qemu_global_mutex>)
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 <qemu_global_mutex>) at pthread_mutex_lock.c:64
#3 0x00007f5c4631c6c9 in qemu_mutex_lock (mutex=mutex@entry=0x7f5c46b87dc0 <qemu_global_mutex>)
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=<optimized out>, __fds=<optimized out>)
at /usr/include/bits/poll2.h:77
#2 qemu_poll_ns (fds=<optimized out>, nfds=<optimized out>, 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=<optimized out>) 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=<optimized out>, argv=<optimized out>, envp=<optimized out>)
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:
<domain type='kvm' id='9'>
<name>b1032388-abb8-4176-897b-0c30a1a73714</name>
<uuid>b1032388-abb8-4176-897b-0c30a1a73714</uuid>
<memory unit='KiB'>16777216</memory>
<currentMemory unit='KiB'>16777216</currentMemory>
<vcpu placement='static'>8</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='x86_64' machine='pc-i440fx-1.5'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<pae/>
<hap/>
</features>
<cpu mode='host-model'>
<model fallback='allow'/>
</cpu>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-kvm</emulator>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/var/virtualization/iso/571196f0-4b29-48c9-b250-50697cbe4317.iso'/>
<backingStore/>
<target dev='hdb' bus='ide'/>
<readonly/>
<alias name='ide0-0-1'/>
<address type='drive' controller='0' bus='0' target='0' unit='1'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/var/virtualization/iso/85d7e9f5-4288-4a3f-b209-c12ff11c61f3.iso'/>
<backingStore/>
<target dev='hdc' bus='ide'/>
<readonly/>
<alias name='ide0-1-0'/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source protocol='gluster' name='virtualization/vm-persistent/0f83f084-8080-413e-b558-b678e504836e/d35a6600-91bf-4fd1-aba4-1fe6a813d481.qcow2'>
<host name='1.2.3.4'/>
</source>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source protocol='gluster' name='virtualization/vm-persistent/0f83f084-8080-413e-b558-b678e504836e/V5qtOlCs-8PgV-64tQ-a79N-j4ko4GIBijT4.qcow2'>
<host name='1.2.3.4'/>
</source>
<backingStore/>
<target dev='vdb' bus='virtio'/>
<alias name='virtio-disk1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
<controller type='usb' index='0' model='ich9-ehci1'>
<alias name='usb0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<alias name='usb0'/>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
<alias name='usb0'/>
<master startport='2'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
<alias name='usb0'/>
<master startport='4'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'>
<alias name='pci.0'/>
</controller>
<controller type='ide' index='0'>
<alias name='ide0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='virtio-serial' index='0'>
<alias name='virtio-serial0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</controller>
<interface type='bridge'>
<mac address='XX.XX.XX.XX:XX:XX'/>
<source bridge='vmbr0'/>
<target dev='kvm-XYZ_0'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<channel type='spicevmc'>
<target type='virtio' name='com.redhat.spice.0'/>
<alias name='channel0'/>
<address type='virtio-serial' controller='0' bus='0' port='1'/>
</channel>
<channel type='unix'>
<source mode='bind' path='/var/lib/libvirt/qemu/channel/target/b1032388-abb8-4176-897b-0c30a1a73714.org.qemu.guest_agent.0'/>
<target type='virtio' name='org.qemu.guest_agent.0'/>
<alias name='channel1'/>
<address type='virtio-serial' controller='0' bus='0' port='2'/>
</channel>
<input type='tablet' bus='usb'>
<alias name='input0'/>
</input>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='spice' port='5900' autoport='no' listen='1.2.3.4'>
<listen type='address' address='1.2.3.4'/>
</graphics>
<sound model='ac97'>
<alias name='sound0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</sound>
<video>
<model type='qxl' ram='65536' vram='65536' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<redirdev bus='usb' type='spicevmc'>
<alias name='redir0'/>
</redirdev>
<redirdev bus='usb' type='spicevmc'>
<alias name='redir1'/>
</redirdev>
<redirdev bus='usb' type='spicevmc'>
<alias name='redir2'/>
</redirdev>
<redirfilter>
<usbdev allow='no'/>
</redirfilter>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
</memballoon>
<rng model='virtio'>
<rate bytes='1024' period='1000'/>
<backend model='random'>/dev/random</backend>
<alias name='rng0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
</rng>
</devices>
<seclabel type='none'/>
</domain>
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