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Bug 229016 - Virtual console unavailable after DomU migration
Summary: Virtual console unavailable after DomU migration
Status: CLOSED DUPLICATE of bug 211921
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: virt-manager
Version: 5.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Daniel Berrange
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2007-02-16 15:21 UTC by Jim Klein
Modified: 2007-11-30 22:07 UTC (History)
0 users

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-02-22 19:40:34 UTC
Target Upstream Version:

Attachments (Terms of Use)
dest debug log (deleted)
2007-02-21 17:34 UTC, Jim Klein
no flags Details
src debug log (deleted)
2007-02-21 17:34 UTC, Jim Klein
no flags Details
dst log (deleted)
2007-02-21 17:35 UTC, Jim Klein
no flags Details
src log (deleted)
2007-02-21 17:36 UTC, Jim Klein
no flags Details

Description Jim Klein 2007-02-16 15:21:18 UTC
Virtual console no longer works after migrating a domain from one box to
another. DomU is still fully functional in every other respect and accessible
via xm, ssh, etc.

Comment 1 Daniel Berrange 2007-02-21 16:35:41 UTC
Not enough info to diagnose the problem - please provide at the very least

 - RPM versions for  'xen', 'libvirt' and 'virt-manager' in your Dom0
 - The kernel version used in the guest DomU
 - The '/var/log/xend.log' & xend-debug.log from both source & destination
machine involved in the migration
 - The /etc/xen/<name>  config file for the guest VM being migrated

Are you referring to the graphical console, or the text (serial) console of the VM ?

Comment 2 Jim Klein 2007-02-21 17:34:05 UTC
Created attachment 148506 [details]
dest debug log

Comment 3 Jim Klein 2007-02-21 17:34:47 UTC
Created attachment 148507 [details]
src debug log

Comment 4 Jim Klein 2007-02-21 17:35:21 UTC
Created attachment 148508 [details]
dst log

Comment 5 Jim Klein 2007-02-21 17:36:00 UTC
Created attachment 148509 [details]
src log

Comment 6 Jim Klein 2007-02-21 17:38:13 UTC
libvirt-0.1.7-2, virt-manager-0.2.6-3, xen-3.0.3-0.1.rc3, kernels
2.6.18-1.2747,2.6.18-1.2798, 2.6.18-1.2869

Logs attached. These are fresh logs after a RHEL5 migrate from source to dest
and back again. Problem also occurs with Fedora domUs running any of the above

Graphical console.

Comment 7 Daniel Berrange 2007-02-22 19:40:34 UTC
Ok, these package versions show you're using a version of the kernel/xen with
the old style paravirt framebuffer protocol. This original implemnetation did
not support migration. Prior to RHEL-5  GA we merged a new style framebuffer
implementation which does support migration.

The fix is in the following versions (or later):


They will be included in the RHEL-5  GA release.

*** This bug has been marked as a duplicate of 211921 ***

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