netbsd/amd64 domU crashes on debian

[Birger Schacht <birger%rantanplan.org@localhost>]

i try to run netbsd domU on debian dom0.
i tried 200801200000Z, 200801210002Z, 200801230002Z and 200801240000Z
but the installation always crashes while doing
Command: /bin/sh MAKEDEV all
saying:
panic: kernel diagnostic assertion "vp->v_usecount == 0" failed: file
"/home/builds/ab/HEAD/src/sys/kern/vfs_subr.c", line 599
Stopped in pid 1341.1 (sh) at   netbsd:breakpoint+0x1:  ret
breakpoint() at netbsd:breakpoint+0x1
__kernassert() at netbsd:__kernassert+0x2d
vrevoke() at netbsd:vrevoke+0x252
genfs_revoke() at netbsd:genfs_revoke+0x13
VOP_REVOKE() at netbsd:VOP_REVOKE+0x25
exit1() at netbsd:exit1+0x778
sys_exit() at netbsd:sys_exit+0x5b
syscall() at netbsd:syscall+0x9f

that is my config:
name = 'postmaster'
kernel =
'/home/xen/kernels/netbsd-amd64/200801240000Z/netbsd-INSTALL_XEN3_DOMU'
memory = 512
vcpus = '1'
disk = ['file:/home/xen/domains/postmaster/postmaster.img,0x1,w']
root = '/dev/xbd0a'
#root = '/dev/wd0d'
vif = ['mac=00:60:08:18:F8:61,bridge=xenbr0']

and the xm info:
host                   : nexus
release                : 2.6.18-5-xen-amd64
version                : #1 SMP Sat Dec 22 22:22:11 UTC 2007
machine                : x86_64
nr_cpus                : 4
nr_nodes               : 1
sockets_per_node       : 2
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 1595
hw_caps                : 
bfebfbff:20100800:00000000:00000140:0004e33d:00000000:00000001
total_memory           : 4094
free_memory            : 529
xen_major              : 3
xen_minor              : 0
xen_extra              : .3-1
xen_caps               : xen-3.0-x86_64 hvm-3.0-x86_32 hvm-3.0-x86_32p 
hvm-3.0-x86_64
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Tue Oct 17 22:09:52 2006 +0100 
cc_compiler            : gcc version 4.1.2 20061115 (prerelease) (Debian 
4.1.1-21)
cc_compile_by          : skx
cc_compile_domain      : debian.org
cc_compile_date        : Mon Oct 22 21:30:18 UTC 2007
xend_config_format     : 2

as far as i can remember, i had a working amd64 domU with a kernel from
ca. 10 days ago (then switched back to i386pae, but there i had the 
exact same problem florian heigl just posted:
http://news.gmane.org/find-root.php?message_id=%3c20080126200736.GA24892%40debian3164m%3e)

/birger
-- 
"When in doubt, use brute force." - Ken Thompson
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