Bug#410807: XEN hangs on xm create

["Vogler, Hartmut" <Hartmut.Vogler@t-systems.com>]

Hi,

i'm running Debian etch on a HP Proliant DL580 and i need to
get the system productiv.
If i run a "xm create" sometimes i get the kernel messages:

kernel: kernel BUG at drivers/xen/core/evtchn.c:481!
kernel: invalid opcode: 0000 [#1]
kernel: SMP 
kernel: CPU:    4
kernel: EIP is at retrigger+0x1f/0x35
kernel: eax: 00000000   ebx: 02080000   ecx: 0000002e   edx: f55f6000
kernel: esi: c03188e0   edi: 0000011c   ebp: 00000000   esp: c039feb0
kernel: ds: 007b   es: 007b   ss: 0069
kernel: Process xenwatch (pid: 29, ti=c039e000 task=c0eaf000
task.ti=c039e000)
kernel: Stack: c013b259 c03188e0 0000011c c0318908 c013afaf eb644ec0
00000000 00000000 
kernel: eb644ec0 c02170f0 00000000 c02174d0 c021065f 00000010 00000000
0000020b 
kernel: 0000020a 00000000 00000000 eb10b4f5 c02e67a4 ee664000 00000000
00000002
kernel: Call Trace: 
kernel: Code: ee 85 f6 75 96 58 5a 5b 5e 5f 5d c3 0f b7 0c 85 40 b8 37
c0 8b 15 84 19 2d c0 85 c9 74 1d 0f a3 8a 80 08 00 00 19 c0 85 c0 75 08
<0f> 0b e1 01 b2 1a 2b c0 f0 0f ab 8a 00 08 00 00 b8 01 00 00 00  
kernel: EIP: [<c020c14a>] retrigger+0x1f/0x35 SS:ESP 0069:c039feb0

The problem is critical to me, because i could not start production
on this system. Xen is needed because the should run a dynamic count
of systems.

Systeminformations:

libc6-xen                              2.3.6.ds1-13
linux-image-2.6-xen-686                2.6.18+6              
linux-image-2.6.18-4-xen-686           2.6.18.dfsg.1-12etch2    
linux-modules-2.6.18-4-xen-686         2.6.18.dfsg.1-12etch2    
xen-hypervisor-3.0.3-1-i386-pae        3.0.3-0-2             
xen-linux-system-2.6.18-4-xen-686      2.6.18.dfsg.1-12etch2    
xen-tools                              2.8-2                    
xen-utils-3.0.3-1                      3.0.3-0-2             
xen-utils-common                       3.0.3-0-2             

Th first system config /etc/xen/e8npnu03.sxp 
########################################################################
########################
name     = "e8npnu03"
kernel   = "/boot/vmlinuz-2.6.18-4-xen-686"
ramdisk  = "/boot/initrd.img-2.6.18-4-xen-686.no.thermal"

root     = "/dev/sda1"
memory   = "512"
vcpus    = "1"
disk     =
['file:/vserver/img/e8npnu03.img,sda1,w','file:/vserver/img/e8npnu03-swa
p.img,sda2,w']

# network
dhcp     = "off"
vif      = [ 'bridge=xenbr0' ]

# runlevel
extra="3"
########################################################################
########################

Any ideas, how i can get fast in production without the risk in a "xm
create"?


Regards

Vogler Hartmut