2.1.70 knfsd oops

[Jonathan Corbet]

I got the following three times...each one resulted in the death of NFS
service until the next reboot.  I can't point to any particular pattern of
activity that would cause this to happen, except that the server was being
moderately pounded upon by at least three different clients..

jon

Jonathan Corbet
National Center for Atmospheric Research, Atmospheric Technology Division
[e-mail]		     http://www.atd.ucar.edu/rdp/jmc.html

Dec  5 13:26:22 pigpen kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000008
Dec  5 13:26:22 pigpen kernel: current->tss.cr3 = 00101000, (r3 = 00101000
Dec  5 13:26:22 pigpen kernel: *pde = 00000000
Dec  5 13:26:22 pigpen kernel: Oops: 0000
Dec  5 13:26:22 pigpen kernel: CPU:    0
Dec  5 13:26:22 pigpen kernel: EIP:    0010:[<c014cefe>]
Dec  5 13:26:22 pigpen kernel: EFLAGS: 00010296
Dec  5 13:26:22 pigpen kernel: eax: c021265c   ebx: 00000000   ecx: c021363c   edx: c7cdc7c0
Dec  5 13:26:22 pigpen kernel: esi: 00000000   edi: 00000001   ebp: 000001f4   esp: c76c7e50
Dec  5 13:26:22 pigpen kernel: ds: 0018   es: 0018   ss: 0018
Dec  5 13:26:22 pigpen kernel: Process nfsd (pid: 473, process nr: 49, stackpage=c76c7000)
Dec  5 13:26:22 pigpen kernel: Stack: 00000000 c01f9490 00000000 00000000 c014cdc3 00000000 00000001 c021265c 
Dec  5 13:26:22 pigpen kernel:        00000002 c014ce84 c021265c 00000000 c6f13f00 00000000 c7fe0a20 00000001 
Dec  5 13:26:22 pigpen kernel:        c014d3d0 00000000 000001f4 46000000 c7bcd800 c0fa5200 c7fe0a20 c014d4b7 
Dec  5 13:26:22 pigpen kernel: Call Trace: [<c014cdc3>] [<c014ce84>] [<c014d3d0>] [<c014d4b7>] [<c014d8a9>] [<c014b930>] [<c014be55>] 
Dec  5 13:26:22 pigpen kernel:        [<c014b9fb>] [<c018a699>] [<c018ad2b>] [<c014b930>] [<c014b874>] [<c0189f9b>] [<c014b708>] 
Dec  5 13:26:22 pigpen kernel: Code: 8b 5e 08 85 db 75 23 8b 46 38 50 8b 46 0c 8b 40 38 50 68 cb