Re: [Xen-users] Problems converting FC8 HVM guest to PV

To:	Evan Lavelle <sa212+xen@xxxxxxxxxxx>
Subject:	Re: [Xen-users] Problems converting FC8 HVM guest to PV
From:	Nico Kadel-Garcia <nkadel@xxxxxxxxx>
Date:	Fri, 28 Dec 2007 14:34:23 +0000
Cc:	Xen <xen-users@xxxxxxxxxxxxxxxxxxx>
Delivery-date:	Fri, 28 Dec 2007 06:32:14 -0800
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Evan Lavelle wrote:

Thanks guys - the good news is that I can boot the PV DomU with yourfixes:
title Fedora (PV boot, Xen kernel, 2952)
    root (hd0,0)
    kernel /vmlinuz-2.6.21-2952.fc8xen ro root=LABEL=/ rhgb quiet
    initrd /initrd-2.6.21-2952.fc8xen.pv.img

name   = "fc8-32-001"
memory = 1024
vcpus  = 1
vif  = [ 'mac=00:0f:b5:ae:4f:2a, bridge=xenbr0' ]
disk = [ 'phy:/dev/VG_Guests/FC8-32-001,hda,w'  ];
bootloader="/usr/bin/pygrub"
boot = "cd"
sdl  = 1
vnc  = 0
I got rid of the root line with no problems. I couldn't boot at allwith the original ramdisk (I got a "mount: could not find filesystem'dev/root'" error), but had no problem with the xenblk andxenblock/xennet ramdisks.
The *bad* news is, well, bad. The DomU appears to be Ok at firstsight, but crashes when I run a specific program (wine, which is aWindows-on-Unix emulator [yes, I know that's crazy, but I need it fortesting]). I get a kernel bug:
kernel BUG at include/linux/tracehook.h:369!
invalid opcode: 0000 [#1]
Should I bother reporting this? The Dom0 appears flakey after this soI need to restart the entire machine.

Can you do a fast, clean FC8 PV install and test Wine on it?

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