[libvirt] Cannot dump core: error: Requested operation is not valid: domain is marked for auto destroy
Daniel P. Berrange
berrange at redhat.com
Thu Oct 8 11:08:58 UTC 2015
On Thu, Oct 08, 2015 at 12:06:09PM +0100, Richard W.M. Jones wrote:
> I wonder if there's a reason why it is not possible to dump the core
> of a KVM domain which is set to autodestroy.
> $ virsh dump guestfs-4xe592eyqq4rfnk9 /tmp/guestfs-4xe592eyqq4rfnk9.core
> error: Failed to core dump domain guestfs-4xe592eyqq4rfnk9 to /tmp/guestfs-4xe592eyqq4rfnk9.core
> error: Requested operation is not valid: domain is marked for auto destroy
> All libguestfs domains have the autodestroy flag, but I am trying to
> debug one which is crashing in the guest (RHBZ#1269779) and having the
> ability to dump it would be very helpful.
> I added the following patch to libvirt, which allowed me to dump the
> domain with no apparent ill effects.
Yep, I see no reason to block use of the core dump API. Looking at the
patch I think this is probably just an over-sight - ie it is merely
blocked as an accidental side-effect of us blocking migration.
|: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org -o- http://virt-manager.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
More information about the libvir-list