diff options
Diffstat (limited to 'results/classifier/105/instruction/1268671')
| -rw-r--r-- | results/classifier/105/instruction/1268671 | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/results/classifier/105/instruction/1268671 b/results/classifier/105/instruction/1268671 new file mode 100644 index 000000000..335beb927 --- /dev/null +++ b/results/classifier/105/instruction/1268671 @@ -0,0 +1,66 @@ +instruction: 0.735 +device: 0.722 +graphic: 0.666 +semantic: 0.615 +other: 0.585 +vnc: 0.568 +network: 0.555 +KVM: 0.492 +socket: 0.488 +boot: 0.397 +mistranslation: 0.319 +assembly: 0.164 + +CentOS guest crashing due to assertion failure in qemu-char.c + +Here is the log in /var/log/libvirt/qemu/centos_heavy.log + +qemu-kvm: /builddir/build/BUILD/qemu-kvm-0.12.1.2/qemu-char.c:630: io_watch_poll_finalize: Assertion `iwp->src == ((void *)0)' failed. +2014-01-13 16:50:31.576+0000: shutting down + +The code it's failing the assertion on has an interesting comment: + + static void io_watch_poll_finalize(GSource *source) + { + /* Due to a glib bug, removing the last reference to a source + * inside a finalize callback causes recursive locking (and a + * deadlock). This is not a problem inside other callbacks, + * including dispatch callbacks, so we call io_remove_watch_poll + * to remove this source. A t this point, iwp->src must + * be NULL, or we would leak it. + * + * This would be solved much more elegantly by child sources, + * but we support older glib versions that do not have them. + */ + IOWatchPoll *iwp = io_watch_poll_from_source(source); + assert(iwp->src == NULL); + } + +------ +CPU Info: + +http://pastebin.com/U7MrzFxK + +-------- + +Relevant RPM versions: + +qemu-kvm-0.12.1.2-2.415.el6_5.3.x86_64 +libvirt-0.10.2-29.el6_5.2.x86_64 + +-------- + +Domain config: + +http://pastebin.com/Nf2VsER8 + +(Note the use of the vmchannels; I believe this is playing a part in this crash) + + + +QEMU 0.12 is completely outdated nowadays ... can you still reproduce this problem with the latest version of QEMU? + +It's a glib bug. It's fixed in RHEL 6.9 beta and in due time the fix will get to CentOS. + +https://bugzilla.redhat.com/show_bug.cgi?id=1212722 + |