Bug 616525 - savevm needs to reset block info on each new save
Summary: savevm needs to reset block info on each new save
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm   
(Show other bugs)
Version: 6.0
Hardware: All
OS: Linux
low
medium
Target Milestone: rc
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Assignee: Alex Williamson
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Keywords:
Depends On: 596328
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-07-20 17:29 UTC by Alex Williamson
Modified: 2010-11-10 22:15 UTC (History)
5 users (show)

Fixed In Version: qemu-kvm-0.12.1.2-2.98.el6
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2010-11-10 21:26:44 UTC
Type: ---
Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description Alex Williamson 2010-07-20 17:29:20 UTC
Description of problem:
savevm states continue from each other such that we can't restore from an intermediate version.

Version-Release number of selected component (if applicable):


How reproducible:
100%


Steps to Reproduce:
1.
# qemu-img create -f qcow2 test.qcow2 2G
Formatting 'test.qcow2', fmt=qcow2 size=2147483648 encryption=off cluster_size=0 

2.
# /usr/libexec/qemu-kvm -hda test.qcow2 -monitor stdio -vnc :0
QEMU 0.12.1 monitor - type 'help' for more information
(qemu) savevm
(qemu) savevm
(qemu) savevm
(qemu) info snapshots
Snapshot devices: ide0-hd0
Snapshot list (from ide0-hd0):
ID        TAG                 VM SIZE                DATE       VM CLOCK
1                                1.2M 2010-07-20 11:22:54   00:00:14.365
2                                1.2M 2010-07-20 11:23:00   00:00:16.872
3                                1.2M 2010-07-20 11:23:06   00:00:19.169
(qemu) quit

3.
# /usr/libexec/qemu-kvm -hda test.qcow2 -monitor stdio -vnc :0
QEMU 0.12.1 monitor - type 'help' for more information
(qemu) loadvm 2
Ack, bad migration stream!
Segmentation fault (core dumped)

Actual results:
loadvm failed, segfault

Expected results:
loadvm succeeds

Additional info:
This problem is introduced by bz596328

Patch posted upstream http://lists.nongnu.org/archive/html/qemu-devel/2010-07/msg01114.html

Comment 5 releng-rhel@redhat.com 2010-11-10 21:26:44 UTC
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.


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