Public bug reported:
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)
---------
uname -a:
Linux blizzard 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
---------
CLI to start guest (included in attached dump):
http://pastebin.com/W01Xzyb0
---------
** Affects: qemu
Importance: Undecided
Status: New
** Attachment added: "kvm_assert.tgz"
https://bugs.launchpad.net/bugs/1268671/+attachment/3947851/+files/kvm_assert.tgz
** Description changed:
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);
- }
+ 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)
+
+
+ ---------
+
+ uname -a:
+
+ Linux blizzard 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC
+ 2014 x86_64 x86_64 x86_64 GNU/Linux
+
+ ---------
+
+ CLI to start guest (included in attached dump):
+
+ http://pastebin.com/W01Xzyb0
+
+ ---------
--
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https://bugs.launchpad.net/bugs/1268671
Title:
CentOS guest crashing due to assertion failure in qemu-char.c
Status in QEMU:
New
Bug description:
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)
---------
uname -a:
Linux blizzard 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
---------
CLI to start guest (included in attached dump):
http://pastebin.com/W01Xzyb0
---------
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https://bugs.launchpad.net/qemu/+bug/1268671/+subscriptions
