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[Xen-devel] Aieee! CPU0 is toast...

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Aieee! CPU0 is toast...
From: Thomas Kofler <xen@xxxxxxxxxxxxx>
Date: Tue, 30 Aug 2005 14:55:35 +0200
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we use xen (bundled with Fedora Core 4) successfully on  a few servers.
But on one machine after installing then xen dom0 kernel the machines crashes.

We also tried to reduce the physical RAM to 1GByte, booting with the acpi=off 
and ignorebiostables and nosmp kernel options, and searched in the user/devel 
xen mailing lists - but didnt found any further information we could 

We hope for help,
Thanks in advance,

- kernel-xenU-2.6.12-1.1447_FC4, xen-2-20050522, kernel-xen0-2.6.12-1.1447_FC4
- SELinux is fully disabled
- No X-Window system is installed

IBM NetFinity 5500, Dual Xeon-PIII 600 MHz, 1.5GByte RAM, ServRAID RAID1, 
QLogic 2200 HBA

Crash Dump:

(XEN) [<ff105f11>] [<ff105f09>] [ff136aa5>]

CPU0 Fatal Trap: vector = 6 (invalid operand)
Aieee! CPU0 is toast...


title Fedora Core (2.6.12-1.1447_FC4xen0)
        root (hd0,0)
        kernel /xen.gz dom0_mem=131072
        module /vmlinuz-2.6.12-1.1447_FC4xen0 ro root=/dev/VolGroup00/LogVol00
        module /initrd-2.6.12-1.1447_FC4xen0.img
title Fedora Core (2.6.12-1.1398_FC4)
        root (hd0,0)
        kernel /vmlinuz-2.6.12-1.1398_FC4 ro root=/dev/VolGroup00/LogVol00
        initrd /initrd-2.6.12-1.1398_FC4.img
title Fedora Core (2.6.12-1.1398_FC4smp)
        root (hd0,0)
        kernel /vmlinuz-2.6.12-1.1398_FC4smp ro root=/dev/VolGroup00/LogVol00
        initrd /initrd-2.6.12-1.1398_FC4smp.img

/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
/dev/proc on /proc type proc (rw)
/dev/sys on /sys type sysfs (rw)
/dev/devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda1 on /boot type ext3 (rw)
/dev/shm on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
automount(pid1741) on /misc type autofs 
automount(pid1778) on /net type autofs 


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