[Xen-users] PV 32bit domU on 64bit dom0/xen

[Christian Tramnitz <chris.ace@xxxxxxx>]

Hi all,

I' m having some trouble getting a 32bit domU (converted from a physical 
CentOS 4.6 in this case) running on a 64bit dom0/Xen (Gentoo-based).
domU:

1. When I try to boot using the Xen-enabled CentOS/RHEL Kernel the 
rootfs cannot be mounted (although xenblk is injected into initrd), no 
matter if I try sdaX, hdaX, xvdaX as root.
2. Using the Xen kernel from xen.org "vmlinuz-2.6.18-xen_3.1.0" and when 
compiling a 2.6.20-xen (taken from Gentoo, PAE enabled) kernel myself, 
the system is stuck right after:
"Checking if this processor honours the WP bit even in supervisor 
mode... Ok."
(nothing happens then)

3. When using a vanilla 2.6.23 kernel (configured myself, PAE enabled or 
taken from 
http://lists.xensource.com/archives/html/xen-users/2007-10/msg00378.html) 
I can't see any kernel messages at all, xm create gives no error message 
but doesn't do anything (also tried to get the console via hvc0)...


As a last resort I tried the dom0 kernel in domU and it boots up, but 
this is a 64bit kernel (running on 32bit userland in the domU).

Any idea's?


domU/dom0:

I don't know if this is related but I'm also having those nasty "Time 
went backwards" messages described in bug #195 
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=195 .


Thanks in advance,
   Christian


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