Bug 217701

Summary:	HVM save and restore fails with obscure error message
Product:	Red Hat Enterprise Linux 5	Reporter:	Stephen Tweedie <sct>
Component:	xen	Assignee:	Daniel Berrangé <berrange>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.0	CC:	xen-maint
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-06-14 19:04:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	217610
Bug Blocks:

Description Stephen Tweedie 2006-11-29 14:45:24 UTC

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
still fails.

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.
# getenforce
Permissive

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
xen-3.0.3-8.el5
xen-libs-3.0.3-8.el5

How reproducible:
always

Steps to Reproduce:
1. install rhel3u8 full virt guest
2. xm create guest
3.
  
Actual results:
unable to save running guest.

Expected results:
guest should be saved ready for restore later

Additional info:

Comment 1 RHEL Program Management 2006-11-29 15:01:11 UTC

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
inclusion.

Comment 2 Daniel Berrangé 2007-06-14 19:04:03 UTC

HVM save & restore is already implemented as a result of bug 214995, so this bug
is no longer relevant.

* Thu Jun 14 2007 Daniel P. Berrange <berrange> - 3.0.3-27.el5
- Back-port 3.1.0  HVM save/restore changes to XenD (rhbz#214995)


*** This bug has been marked as a duplicate of 214995 ***