On Sat, Mar 25, 2006 at 05:13:05PM +0100,
 Stephane Bortzmeyer <stephane@sources.org> wrote 
 a message of 31 lines which said:

> kernel: supervisor trap page fault, code=0qqqqqj                  
> Stopped in pid 1359.1 (sysinst) at      0xc022f103:     pushl   0x144(%edx)
> db>                                                                        

This is from the INSTALL image. xm info says:


system                 : Linux
host                   : aslan
release                : 2.6.12.6-xen0
version                : #1 Sun Dec 4 22:21:21 GMT 2005
machine                : i686
nr_cpus                : 1
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 1
threads_per_core       : 1
cpu_mhz                : 231
hw_caps                : 0080f9ff:00000000:00000000:00000040
total_memory           : 192
free_memory            : 15
xen_major              : 3
xen_minor              : 0
xen_extra              : .0
xen_caps               : xen-3.0-x86_32
platform_params        : virt_start=0xfc000000
xen_changeset          : Sun Dec  4 17:24:24 2005 +0100 8240:64cd054aa143
cc_compiler            : gcc version 3.3.3 20040412 (Red Hat Linux 3.3.3-7)
cc_compile_by          : xenod
cc_compile_domain      : cl.cam.ac.uk
cc_compile_date        : Sun Dec  4 20:20:45 GMT 2005

The debugger says:

kernel: supervisor trap page fault, code=0qqqqqj                  
Stopped in pid 1359.1 (sysinst) at      0xc022f103:     pushl   0x144(%edx)
db> trace      
?(8e0b,1,2000,c5a0bad4,c641db38) at 0xc022f103
?(c636bdf4,c023e8c0,c641db38,1,c5a00f6c) at 0xc02041c6
?(c641db38,1,c5a00f6c,c5a0bad4,c5a00f6c) at 0xc02008be
?(c636bed8,1,18c,c5a04b18,c5a05f90) at 0xc01fe7ba     
?(c5a0bad4,c636bf70,c636bf68,0,0) at 0xc01fb46b  
?(c636bfa8,1f,1f,1f,1f) at 0xc0225e9e          
db> ps                               
 PID           PPID     PGRP        UID S   FLAGS LWPS          COMMAND    WAIT
>1359          1355     1359          0 2  0x4002    1          sysinst        
 1355             1     1355          0 2  0x4002    1               sh    wait
 9                1        9          0 2       0    1        mount_mfs  mfsidl
 7                0        0          0 2 0x20200    1         aiodoned aiodone
 6                0        0          0 2 0x20200    1          ioflush  syncer
 5                0        0          0 2 0x20200    1       pagedaemon pgdaemo
 4                0        0          0 2 0x20200    1           xenbus        
 3                0        0          0 2 0x20200    1         xenwatch   evtsq
 1                0        1          0 2  0x4000    1             init    wait
 0               -1        0          0 2 0x20200    1          swapper schedul
db>