On 01/14/2015 12:14 AM, John Ferlan wrote:
On 12/06/2014 11:32 AM, Shanzhi Yu wrote:
When create inactive external snapshot, after update disk definitions,
virDomainSaveConfig is needed, if not after restart libvirtd the new snapshot
file definitions in xml will be lost.
Reproduce steps:
1. prepare a shut off guest
$ virsh domstate rhel7 && virsh domblklist rhel7
shut off
Target Source
------------------------------------------------
vda /var/lib/libvirt/images/rhel7.img
2. create external disk snapshot
$ virsh snapshot-create rhel7 --disk-only && virsh domblklist rhel7
Domain snapshot 1417882967 created
Target Source
------------------------------------------------
vda /var/lib/libvirt/images/rhel7.1417882967
3. restart libvirtd then check guest source file
$ service libvirtd restart && virsh domblklist rhel7
Redirecting to /bin/systemctl restart libvirtd.service
Target Source
------------------------------------------------
vda /var/lib/libvirt/images/rhel7.img
This was first reported by Eric Blake
http://www.redhat.com/archives/libvir-list/2014-December/msg00369.html
Signed-off-by: Shanzhi Yu <shyu@xxxxxxxxxx>
---
src/qemu/qemu_driver.c | 3 +++
1 file changed, 3 insertions(+)
Looks like this one may have been lost in the shuffle prior to the
holidays...
Seems reasonable to me - although I'll wait a bit before pushing just in
case by popping it to the top of the stack again it causes more
discussion...
John
Thanks. I almost forgot it myself.
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 9152cf5..9f8ea0a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12847,6 +12847,9 @@ qemuDomainSnapshotCreateInactiveExternal(virQEMUDriverPtr driver,
goto cleanup;
}
defdisk->src->format = snapdisk->src->format;
+
+ if (virDomainSaveConfig(cfg->configDir, vm->def) < 0)
+ goto cleanup;
}
}
--
Regards
shyu
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