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[Xen-devel] illegal page update with latest xen-unstable

To: xen-devel@xxxxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] illegal page update with latest xen-unstable
From: urmk@xxxxxxxxxxxxx
Date: Tue, 14 Oct 2003 13:46:20 -0400
Delivery-date: Tue, 14 Oct 2003 18:47:42 +0100
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Just checked out the latest xen-unstable this morning and am getting some 
interesting (read: bad) behavior...

The easiest way to reproduce the error is to just run 'make' in the 
xeno-unstable.bk tools directory.  The ant run hangs, and when I kill it
(both at console or from ssh) I get a machine reboot.

The build command (not very interesting):
"""
root@xeno:~/xeno-unstable/xeno-unstable.bk/tools/control# make
ant -buildfile build-cmdline.xml dist
"""

The xen serial console error:
"""
DOM0 FATAL ERROR: Illegal page update request
Domain 0 killed: rebooting machine!
"""

Xen 1.0 works fine for me, and I built unstable using the xen-clone script.

(clock on this machine is off, it was really built at 11am oct 14.)

Xen:
"""
Xen version 1.1-devel (root@xxxxxxxxxxxxx) (gcc version 3.2.2) Mon Oct 13 
17:46:04 EDT 2003
"""

Dom0:
"""
DOM0: Linux version 2.4.22-xeno (root@xeno) (gcc version 3.2.2) #2 Mon Oct 13 
17:50:12 EDT 2003
DOM0: Kernel command line: /boot/xenolinux-unstable.gz root=/dev/sda1 ro 
console=xencons0 console=tty0 consoe=ttyS0 DOMID=0
"""

The box physically has 2 gig of ram and dom0 is limited to 128 meg.

On a different tangent, I also get a fatal error getting CPU performance 
counters over the serial link with the unstable tree:

"""
CPU performance counters for CPU 0 (current):
general protection fault: 0000,0000 
CPU:    0
EIP:    0808:[<fc507f8e>]       
EFLAGS: 00211282
eax: 00000000   ebx: fc5ad480   ecx: 000000c1   edx: 000003f8
esi: 000003fd   edi: 000003f8   ebp: fc502f60   esp: fc502ed0
ds: 0810   es: 0810   fs: 0810   gs: 0810   ss: 0810
Stack trace from ESP=fc502ed0:
fc58c860 00000000 00201092 00000000 00000063 000003fd 000003f8 [fc513c67]
       00000063 00000000 fc502f60 00000063 00000004 00000000 [fc57ba45] 
fc5f4a00 
       00000000 00000004 fc5b2ac0 [fc57eb8c] 00000004 00000000 fc502f60 
fc5f4a00 
       00201246 00000000 [fc5038c3] fc5ad480 82d43916 fc5f4a00 00000000 
fc5ad480 
       00000000 fc5ad480 00000000 [fc57bf60] fc5ad480 00000000 00000ffc 
00000000 
       fc5ad480 00000000 00000000 fc5a0810 fc5a0810 00000810 fc5a0810 ffffff04
       [fc581b99] 00000808 00201246 c01999a0 00000000 [fc50c633] 0000000b 
00000000
       df2c622a fc5ad480 00000000 00000000 00000000 00000000 00000000 00000000
       00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
       00000000 00000000 00000000 fc5ad480

****************************************
HYPERVISOR DEATH!!
Aieee! CPU0 is toast...
****************************************

Reboot in five seconds...
System Time went backwards: -104738496
"""

The hardware is a IBM x-series, P4 2.4ghz, adaptec scsi, tg3 gbit, 2 gig ram.

-m




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