panic in NFS/UDP code path

Hi all,

while doing a cvs diff with the repository living on an NFS mounted
volume, here is the panic I caught :
%%%
    panic: mutex Giant not owned at ../../../netinet/ip_output.c:151
    KDB: stack backtrace:
    kdb_backtrace()
    panic()
    _mtx_assert(c07a0a40,1,c07476c1,97,e5036b6c) at _mtx_assert+0x7c
    ip_output(c2639200,0,e5036b70,0,0) at ip_output+0xcb
    udp_output(c25f15a0,c2639200,0,0,c2307c80) at udp_output+0x550
    udp_send(c2a8e42c,0,c268a300,0,0) at udp_send+0x30
    nfs_timer(0,0,c073d3fc,125,c0777100) at nfs_timer+0x2b2
    softclock(0,0,c0739ca4,251,e5036d00) at softclock+0x29b
    ithread_loop()
    fork_exit()
    fork_trampoline()
%%%

I have a kernel dump, but it's very heavy (1 GB), so tell me what
commands you want me to issue in kgdb.

The source are dated from the 2005.07.24... (I can't check the exact
date now, it's dumping ;p).

Regards,
-- 
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >