Package: linux-image-2.6.26-2-xen-amd64
Version: 2.6.26-15
Severity: normal

Using the linux kernel from xen.org it is possible to save/migrate a 32-bit
domU on a 64-bit dom0. With the lenny kernel it is not possible! The error
message in /var/log/xen/xend.log:
[2009-04-30 09:58:15 5118] INFO (XendCheckpoint:373) All memory is saved
[2009-04-30 09:58:15 5118] ERROR (XendCheckpoint:144) Save failed on domain 
dns3 (1).
Traceback (most recent call last):
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendCheckpoint.py", line 112, in 
save
    forkHelper(cmd, fd, saveInputHandler, False)
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendCheckpoint.py", line 361, in 
forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib/xen-3.2-1/bin/xc_save 5 1 0 0 1 failed
[2009-04-30 09:58:36 5118] DEBUG (XendDomainInfo:1897) XendDomainInfo.destroy: 
domid=1

See also http://readlist.com/lists/lists.xensource.com/xen-users/4/24225.html

To make it clear that it seems to be a issue with the dom0 kernel i've tested
a plain Debian 5.0 installation as dom0 (xen-linux-system-2.6.26-2-xen-amd64)
only with packages from Debian 5.0. Changing only the dom0 kernel to the
kernel from xen.org live migration is possible!

Another workaround is to use a 64-bit hypervisor on a 32-bit dom0
(http://lists.xensource.com/archives/html/xen-users/2008-12/msg00404.html).


-- System Information:
Debian Release: 5.0.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.18 (SMP w/8 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages linux-image-2.6.26-2-xen-amd64 depends on:
ii  initramfs-tools               0.92o      tools for generating an initramfs
ii  linux-modules-2.6.26-2-xen-am 2.6.26-15  Linux 2.6.26 modules on AMD64

linux-image-2.6.26-2-xen-amd64 recommends no packages.

Versions of packages linux-image-2.6.26-2-xen-amd64 suggests:
ii  grub                       0.97-47lenny2 GRand Unified Bootloader (Legacy v
pn  linux-doc-2.6.26           <none>        (no description available)

-- no debconf information



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