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[Xen-users] Xen 4.0 Debian squeeze host reset on HVM guest start

Hello list,

I faced with the following problem: when I try to start HVM guest (I
want to install windows XP as one of the guests), the whole host
machine resets - no logs, no errors, nothing - like someone just
pressed _physical_ reset switch on the server after this:

xm create /etc/xen/windows.cfg
Using config file "/etc/xen/windows.cfg".
Started domain xp-hvm (id=3)

<- here reset happens :(

Other DomU - linux guests) are fine, no problems observed.

Server is the SuperMicro H8SGL with Opteron 6272 CPU (16 cores).

Dom0 is set to use 2G RAM and 4 cores, balooning is switched off.
Network interfaces sections in the Xen config is fully commented.

this is xm info output:
root@reiss:/etc/xen# xm info
host                   : reiss
release                : 2.6.32-5-xen-amd64
version                : #1 SMP Sun Sep 23 13:49:30 UTC 2012
machine                : x86_64
nr_cpus                : 16
nr_nodes               : 1
cores_per_socket       : 16
threads_per_core       : 1
cpu_mhz                : 2100
hw_caps                : 
virt_caps              : hvm hvm_directio
total_memory           : 16350
free_memory            : 10011
node_to_cpu            : node0:0-15
node_to_memory         : node0:10011
node_to_dma32_mem      : node0:3515
max_node_id            : 0
xen_major              : 4
xen_minor              : 0
xen_extra              : .1
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
xen_commandline        : placeholder loglvl=all guest_loglvl=all 
com1=115200,8n1,0x3e8,5 console=com2 dom0_mem=2048M elevator=noop
cc_compiler            : gcc version 4.4.5 (Debian 4.4.5-8)
cc_compile_by          : ultrotter
cc_compile_domain      : debian.org
cc_compile_date        : Sat Sep  8 19:15:46 UTC 2012
xend_config_format     : 4

I followed this link to setup windows guest: 
- its configuration is just copypasted and I just changed names of the
files, which should be used for guest HDD and CD-ROM:

cat windows.cfg
kernel = "/usr/lib/xen-4.0/boot/hvmloader"
memory = 1024
name = "xp-hvm"
vif = ['bridge=xenbr0']
disk = [ 'phy:/dev/reiss-xenvg/xp-disk1,hda,w', 
'file:/home/serj/en_xp_pro_sp2.iso,hdc:cdrom,r' ]
acpi = 1
device_model = 'qemu-dm'

I have the "clean" Debian 6 install, without any additional

The following xen-related packages are installed:

root@reiss:/etc/xen# dpkg -l|grep xen
ii  libxenstore3.0                          4.0.1-5.4                    
Xenstore communications library for Xen
ii  linux-image-2.6.32-5-xen-amd64          2.6.32-46                    Linux 
2.6.32 for 64-bit PCs, Xen dom0 support
ii  linux-image-xen-amd64                   2.6.32+29                    Linux 
for 64-bit PCs (meta-package), Xen dom0 support
ii  xen-hypervisor-4.0-amd64                4.0.1-5.4                    The 
Xen Hypervisor on AMD64
ii  xen-linux-system-2.6-xen-amd64          2.6.32+29                    Xen 
system with Linux 2.6 for 64-bit PCs (meta-package)
ii  xen-linux-system-2.6.32-5-xen-amd64     2.6.32-46                    Xen 
system with Linux 2.6.32 on 64-bit PCs (meta-package)
ii  xen-qemu-dm-4.0                         4.0.1-2+squeeze2             Xen 
Qemu Device Model virtual machine hardware emulator
ii  xen-tools                               4.2-1                        Tools 
to manage Xen virtual servers
ii  xen-utils-4.0                           4.0.1-5.4                    XEN 
administrative tools
ii  xen-utils-common                        4.0.0-1                      XEN 
administrative tools - common files
ii  xenstore-utils                          4.0.1-5.4                    
Xenstore utilities for Xen

Is this a known issue with Xen 4.0?

If I need to provide any additional info - just ask.

Thank you in advance.

P.S. Sorry for possible duplicate - I`v send this message yesterday,
but still can not see it in the list - may be this is mail glitch.

Best regards,
 Sergey                          mailto:serj@xxxxxxxxxx

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