[OOPS] 2.5.53 NFS (rpc.mountd)

From: David Ford (david+cert@blue-labs.org)
Date: Sun Feb 16 2003 - 15:09:14 EST


The below is what can happen infrequently after the following has occured:

1) client loses love with server (df reports 1 for all filesystem stats)
2) admin runs 'exportfs -vra' on server
3) client gets love and server burps:

Unable to handle kernel paging request at virtual address 6b6b6b87
 printing eip:
c0378b4d
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0060:[<c0378b4d>] Not tainted
EFLAGS: 00010202
EIP is at auth_unix_lookup+0x3d/0x88
eax: 6b6b6b6b ebx: dbdd7b60 ecx: caf3677c edx: 6b6b6b6b
esi: 00000000 edi: dcf85f58 ebp: dbdd7b44 esp: dbdd7b1c
ds: 0068 es: 0068 ss: 0068
Process rpc.mountd (pid: 3677, threadinfo=dbdd6000 task=ddc70760)
Stack: dbdd7b60 dcf85ed0 dbdd7b40 c013d5de dffff600 dcf85ed0 c04067f8
0600000a
       00000060 dbdd7f78 dbdd7f78 c01b695d 0600000a 00000008 d6e24914
00000060
       dcf85ed4 ad030002 0600000a 00000000 00000000 6961722f 6f682f64
642f656d
Call Trace:
 [<c013d5de>] kmalloc+0xaa/0x128
 [<c01b695d>] write_getfs+0xbd/0x17c
 [<c01b65b1>] fs_write+0x31/0x38
 [<c017ac3c>] sys_nfsservctl+0xb4/0xf8
 [<c0109283>] syscall_call+0x7/0xb

Code: 8b 40 1c 29 d0 85 c0 7e 0a b8 01 00 00 00 f0 0f ab 41 10 8b

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This archive was generated by hypermail 2b29 : Sun Feb 23 2003 - 22:00:15 EST