netbsd-5-rcr uvm_fault

[6bone%6bone.informatik.uni-leipzig.de@localhost]

Hello list,

I am using an actual version of NetBSD 5.0_RC1 (amd). Today the 
kernel crashes with:


uvm_fault(0xffffffff80cae360, 0x0, 1) -> e
panic: fatal page faultkernel diagnostic assertion "vp->v_usecount == 1" 
failede

trap type 6 code 0 rip ffffffff804a90f6 cs 8 rflags 10246 cr2  8 cpl 0 rsp 
ffff0
fkaertanell b: repaakgpe ofianut lttr atrpa pin,  scuopdee=r0vi
Stopped in pid 0.60 (system) at netbsd:vn_lock+0x116:   movq 
0x8(%rax),%rax
db{1}> trace
vn_lock() at netbsd:vn_lock+0x116
vget() at netbsd:vget+0x132
qsync() at netbsd:qsync+0xea
ffs_sync() at netbsd:ffs_sync+0x29c
VFS_SYNC() at netbsd:VFS_SYNC+0x33
sync_fsync() at netbsd:sync_fsync+0x76
VOP_FSYNC() at netbsd:VOP_FSYNC+0x71
sched_sync() at netbsd:sched_sync+0x14f
db{1}> show registers
ds          0x3fe0
es          0xbb5c
fs          0x1ae0
gs          0xe88
rdi         0xffff8000ca448728
rsi         0x10012
rbp         0xffff800071c01ac0
rbx         0x10012
rdx         0x3
rcx         0xffff80006c6ab3e0
rax         0
r8          0
r9          0
r10         0x1
r11         0
r12         0xffff8000ca448728
r13         0xffff8000c095b770
r14         0
r15         0xffff800072430e88
rip         0xffffffff804a90f6  vn_lock+0x116
cs          0x8
rflags      0x10246
rsp         0xffff800071c01ab0
ss          0x10
netbsd:vn_lock+0x116:   movq    0x8(%rax),%rax


Any ideas what the problem could be?

Thank you for your efforts.



Regards
Uwe