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[Xen-devel] Kernel Panic with xenU on Athlon XP


Running xen-devel with the fedora-devel kernel on a Athlon XP results in
the following panic for xenU guests. Strangely, xen0 boots up fine and
runs without any problems. Additionally, the same kernel binary was tested
on a system running an Intel Pentium-M and it works fine.

Any ideas or anything else I can do to help?




Linux version 2.6.10-1.1143ak_FC3xenU (root@xxxxxxxxxxxxxxxxxxxxx) (gcc
version 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)) #1 SMP Thu Feb 17 12:59:56
GMT 2005 BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000010000000 (usable)
256MB LOWMEM available.
Using x86 segment limits to approximate NX protection DMI not present.
IRQ lockup detection disabled
Built 1 zonelists
Kernel command line:  root=/dev/sda1 rw selinux=disabled noexec=off
idle=poll clock=pit noapic acpi=off Initializing CPU#0
PID hash table entries: 2048 (order: 11, 32768 bytes) Xen reported:
2255.153 MHz processor. Using tsc for high-res timesource
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Memory:
255424k/262144k available (1318k kernel code, 6348k reserved, 474k data,
128k init, 0k highmem) Checking if this processor honours the WP bit even
in supervisor mode... Ok. Security Framework v1.0.0 initialized SELinux: 
Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes) general
protection fault: 0000 [#1]
Modules linked in:
CPU:    0
EIP:    0061:[<c02cb7c8>]    Not tainted VLI EFLAGS: 00010202  
(2.6.10-1.1143ak_FC3xenU) EIP is at init_amd+0x33c/0x3e5
eax: 0383fbff   ebx: c0276480   ecx: c001001b   edx: c0276480 esi:
c001001b   edi: c02764a8   ebp: 00000000   esp: c02c3fa0 ds: 007b   es:
007b   ss: 0069
Process swapper (pid: 0, threadinfo=c02c2000 task=c0275220) Stack:
c0118da5 c0276480 00000100 c02764a8 c0118c62 c025179c c02c3fc4 c02cafd7
       c0276480 c0366200 c02764a8 00000000 c02cafef c0276480 00000000
       c0366200 c02e7a80 c02c412b c0276480 c02c4768 00010000 00010000
       c02e7e80 c0100082
Call Trace:
 [<c0118da5>] vprintk+0x140/0x154
 [<c0118c62>] printk+0xe/0x11
 [<c02cafd7>] identify_cpu+0xb8/0x185
 [<c02cafef>] identify_cpu+0xd0/0x185
 [<c02c412b>] check_bugs+0xa/0x37
 [<c02c4768>] start_kernel+0x18e/0x197
Code: e7 ff 7f ff ff 89 f8 0f 30 5a f0 0f ba 6b 0c 19 8b 54 24 34 80 7a 02
08 75 08 80 7a 03 00 75 04 eb 44 76 42 be 1b 00 01 c0 89 f1 <0f> 32 89 54
24 0c 89 c7 25 00 00 f0 ff 3d 00 00 00 20 74 27 89
 <0>Kernel panic - not syncing: Attempted to kill the idle task!
 <0>Rebooting in 1 seconds..

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