panic: vm_fault:

Hi.

I get this panic on a system with kernel/world from 03 September. 
Usually i only run X and xawtv on that system but when i wanted to make 
world today i got the panic:

Kris Kennaway reported something IMHO similar on 07/31/03

panic: vm_fault: fault on nofault entry, addr: deadc000
Debugger("panic")
Stopped at      Debugger+0x4d:  xchgl   %ebx,in_Debugger.0
db> trace
Debugger(c03c1cf1,c043fd00,c03d3c82,e929f9e4,100) at Debugger+0x4d
panic(c03d3c82,deadc000,1,e929fa80,e929fa70) at panic+0xcc
vm_fault(c082f000,deadc000,1,0,c5db65f0) at vm_fault+0x1187
trap_pfault(e929fb48,0,deadc1e6,c03d958f,deadc1e6) at trap_pfault+0x163
trap(18,10,10,0,d222036c) at trap+0x2ca
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc0328512, esp = 0xe929fb88, ebp = 0xe929fbb0 ---
getdirtybuf(c5ebc8bc,0,1,1,e929fbe8) at getdirtybuf+0x22
flush_deplist(c5ebccc4,1,e929fbe8,e929fbec,0) at flush_deplist+0x32
flush_inodedep_deps(c5c63000,28c4,c040d6ac,c5eefb68,124) at 
flush_inodedep_deps+0x89
softdep_sync_metadata(e929fca8,0,c03d2cc0,124,0) at 
softdep_sync_metadata+0x7e
ffs_fsync(e929fca8,0,c03c9837,ad8,0) at ffs_fsync+0x3a9
fsync(c5db65f0,e929fd14,c03d958f,3eb,1) at fsync+0x166
syscall(2f,2f,2f,80a1000,0) at syscall+0x253
Xint0x80_syscall() at Xint0x80_syscall+0x1d
--- syscall (95, FreeBSD ELF32, fsync), eip = 0x2814ca0f, esp = 
0xbfbff90c, ebp = 0xbfbff928 ---
db>

Are there additional infos required ?

Regards,
flo