8:36 p.m.
Hi,
I have a host with 6 VMs set to autostart. When this host reboots, it
starts libvirtd, pegasus cimom and libvirt-cim. It also restarts the VMs.
Intermittently we noticed a core during start up that points to the last
call made by libvirt-cim to "virInitialize". I am thinking that it is a
timing issue where virInitialize is called while libvirt is trying to
autostart the VMs.
Is this a known issue?
Thanks,
Sharad Mishra
5:16 a.m.
On Thu, Aug 11, 2011 at 11:36:51AM -0700, Sharad Mishra wrote:
Hi,
I have a host with 6 VMs set to autostart. When this host reboots, it
starts libvirtd, pegasus cimom and libvirt-cim. It also restarts the VMs.
Intermittently we noticed a core during start up that points to the last
call made by libvirt-cim to "virInitialize". I am thinking that it is a
timing issue where virInitialize is called while libvirt is trying to
autostart the VMs.
Libvirt should not crash as is, but restarting the 6 domains may take
quite some time and it's done synchronously at startup, libvirt daemon
will start processing requests only once done. The problem is that
tog-pegasus may start in the meantime, libvirt-cim virInitialize()
run ... and fails to connect. You may have a crash there, make sure
how it behaves if there is a failure to connect on startup (apparently
it may take multiple attempts).
Daniel
--
Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/
daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/
http://veillard.com/ | virtualization library http://libvirt.org/
10:58 a.m.
On Thu, Aug 11, 2011 at 11:36:51AM -0700, Sharad Mishra wrote:
Hi,
I have a host with 6 VMs set to autostart. When this host reboots, it
starts libvirtd, pegasus cimom and libvirt-cim. It also restarts the VMs.
Intermittently we noticed a core during start up that points to the last
call made by libvirt-cim to "virInitialize". I am thinking that it is a
timing issue where virInitialize is called while libvirt is trying to
autostart the VMs.
The virInitialize() API calls does very little, it merely sets up a few
internal data structures.
There is no attempt to connect to libvirtd until you call viConnectOpen,
so I can't see how virInitialize would race with libvirtd autostart.
To get more information, you really need to capture a stack trace of
the crash in GDB (or via Abrt)
Regards,
Daniel
--
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2 comments
3 participants
participants (3)
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Daniel P. Berrange -
Daniel Veillard -
Sharad Mishra