got this one on my 5000/200 this afternoon during a cvs update...

rver goldberry:/suckym: not responding
nfs server goldberry:/suckym: is alive again
panic: insmntque into dying filesystem
cpu_reboot+48 (100,0,0,ffffffff) ra 800c7f10 sz 24
panic+114 (100,0,0,ffffffff) ra 800ea12c sz 40
insmntque+44 (100,0,0,ffffffff) ra 800ea088 sz 24
getnewvnode+32c (100,0,0,ffffffff) ra 80193324 sz 72
nfs_nget+10c (100,0,0,ffffffff) ra 801c1a10 sz 64
nfs_lookup+ef0 (200,0,84008,ffffffff) ra 800e9114 sz 280
lookup+3dc (200,0,84008,ffffffff) ra 800e8c38 sz 88
namei+3e8 (200,0,84008,ffffffff) ra 800f3928 sz 120
sys_mkdir+44 (200,0,84008,ffffffff) ra 802061b4 sz 248
syscall+1ec (200,0,84008,ffffffff) ra 80030ed8 sz 96
mips1_SystemCall+d0 (200,0,84008,ffffffff) ra 20127b40 sz 0
PC 0x20127b40: not in kernel space
_DYNAMIC_LINK+20127b40 (200,0,84008,ffffffff) ra 0 sz 0
User-level: pid 29247
syncing disks... 12 12 10 7 2 1 1 1 1 1 1 1 1 1 1

unfortunately no dump...  kernel is:

NetBSD bombadil 1.4ZB NetBSD 1.4ZB (bombadil) #3: Sun Jun 11 23:59:07 PDT 2000 agrier@bombadil:/amd/goldberry/suckym/NetBSD/src/sys/arch/pmax/compile/bombadil pmax

-- 
  Aaron J. Grier | "Not your ordinary poofy goof." | agrier@poofygoof.com