Red Hat Bugzilla – Bug 217702
HVM save and restore fails with obscure error message
Last modified: 2007-11-30 17:07:38 EST
Cloning for virt-manager, which needs the same fix as the core xen tools.
+++ This bug was initially created as a clone of Bug #217701 +++
fv save/restore is not supported, but xen tries to do it anyway and fails with
an obscure error message. The tools really need to fail cleanly in this case.
+++ This bug was initially created as a clone of Bug #217610 +++
Description of problem:
I am unable to save a running guest on a full virt system. My test case has a
guest installed with rhel3u8. Turned SELinux off to eliminate issues and xm save
Test system is and AMD tyan i686 - Cpus:4 Memory:1803 MB
# xm list
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 1803 4 r----- 26086.1
rhel3u8-i386 164 600 1 -b---- 21.0
# xm save rhel3u8-i386 /var/lib/xen/images/save.img
Error: /usr/lib/xen/bin/xc_save 21 164 0 0 0 failed
Usage: xm save <Domain> <CheckpointFile>
Save a domain state to restore later.
Version-Release number of selected component (if applicable):
Clean install of RHEL5-Beta2 tree.
Linux amd-tyan-03.lab.boston.redhat.com 2.6.18-1.2747.el5xen #1 SMP Thu Nov 9
19:33:10 EST 2006 i686 athlon i386 GNU/Linux
# rpm -q xen xen-libs
Steps to Reproduce:
1. install rhel3u8 full virt guest
2. xm create guest
unable to save running guest.
guest should be saved ready for restore later
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release. Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release. This request is not yet committed for
This requires that bug #217701 is first addressed, otherwise virt-manager will
never even be given the error message. Once that bug is addressed, I believe
that virt-manager will already 'do the right thing' and pass the message upto
the user. At worst case we need to add in a error dialog. So, assuming bug
#217701 is first addressed, this should be doable for RHEL 5.1
In bug 214995, xen-3.0.3-27.el5 gained ability to do save/restore of HVM guests.
Thus virt-manager should now 'just work(tm)' for HVM guests without any further
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.