Bug 229016 - Virtual console unavailable after DomU migration
Virtual console unavailable after DomU migration
Status: CLOSED DUPLICATE of bug 211921
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: virt-manager (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Daniel Berrange
Depends On:
  Show dependency treegraph
Reported: 2007-02-16 10:21 EST by Jim Klein
Modified: 2007-11-30 17:07 EST (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2007-02-22 14:40:34 EST
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
dest debug log (1.51 KB, application/octet-stream)
2007-02-21 12:34 EST, Jim Klein
no flags Details
src debug log (1.59 KB, application/octet-stream)
2007-02-21 12:34 EST, Jim Klein
no flags Details
dst log (45.87 KB, application/octet-stream)
2007-02-21 12:35 EST, Jim Klein
no flags Details
src log (39.18 KB, text/plain)
2007-02-21 12:36 EST, Jim Klein
no flags Details

  None (edit)
Description Jim Klein 2007-02-16 10:21:18 EST
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 11:35:41 EST
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 12:34:05 EST
Created attachment 148506 [details]
dest debug log
Comment 3 Jim Klein 2007-02-21 12:34:47 EST
Created attachment 148507 [details]
src debug log
Comment 4 Jim Klein 2007-02-21 12:35:21 EST
Created attachment 148508 [details]
dst log
Comment 5 Jim Klein 2007-02-21 12:36:00 EST
Created attachment 148509 [details]
src log
Comment 6 Jim Klein 2007-02-21 12:38:13 EST
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 14:40:34 EST
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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