nfs and kernel 2.6.7-1.515 problem

[Wojciech Fraczak]

Since I ran the last yum update I've been getting problems with nfs 
daemon. Anybody experiencing similar problems?

Wojtek

That's what I get in dmesg:
-------------------------------------------------
...
Installing knfsd (copyright (C) 1996 okir at monad.swb.de).
Unable to handle kernel NULL pointer dereference at virtual address 00000000
  printing eip:
02134be0
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: nfsd exportfs lockd usbserial parport_pc lp parport 
autofs4 sunrpc
tulip floppy sg scsi_mod dm_mod uhci_hcd md5 ipv6 ext3 jbd
CPU:    0
EIP:    0060:[<02134be0>]    Not tainted
EFLAGS: 00010246   (2.6.7-1.515)
EIP is at page_address+0x6/0x5f
eax: 00000000   ebx: 00000000   ecx: 0000000a   edx: 0df49800
esi: 06ebd0b6   edi: 00000009   ebp: 06479800   esp: 06440f1c
ds: 007b   es: 007b   ss: 0068
Process nfsd (pid: 2105, threadinfo=06440000 task=064745c0)
Stack: ffff976c 06ebd0b6 00000009 06479800 0e9bc1df 00000001 00000001 
0df49800
        064fae60 0e94965c 0e9c000a 00000006 00000003 00000011 0df49800 
0df49800
        0e9bc0bc 0e9d0d58 0e9d0b18 0e9b24dd 0643e014 0df49864 0df49800 
0e9d0d58
Call Trace:
  [<0e9bc1df>] nfs3svc_decode_readargs+0x123/0x169 [nfsd]
  [<0e94965c>] svc_udp_recvfrom+0x195/0x227 [sunrpc]
  [<0e9c000a>] nfsd4_decode_fattr+0x23e/0x4eb [nfsd]
  [<0e9bc0bc>] nfs3svc_decode_readargs+0x0/0x169 [nfsd]
  [<0e9b24dd>] nfsd_dispatch+0x6a/0x15d [nfsd]
  [<0e948b3a>] svc_process+0x32b/0x569 [sunrpc]
  [<0e9b233a>] nfsd+0x18e/0x2c7 [nfsd]
  [<0e9b21ac>] nfsd+0x0/0x2c7 [nfsd]
  [<021031d9>] kernel_thread_helper+0x5/0xb
Code: 8b 00 f6 c4 01 75 19 2b 1d 30 dd 37 02 c1 fb 05 c1 e3 0c 8d
  <1>Unable to handle kernel NULL pointer dereference at virtual address 
00000000
  printing eip:
02134be0
*pde = 00000000

...

Oops: 0000 [#8]
Modules linked in: nfsd exportfs lockd usbserial parport_pc lp parport 
autofs4 sunrpc
tulip floppy sg scsi_mod dm_mod uhci_hcd md5 ipv6 ext3 jbd
CPU:    0
EIP:    0060:[<02134be0>]    Not tainted
EFLAGS: 00010246   (2.6.7-1.515)
EIP is at page_address+0x6/0x5f
eax: 00000000   ebx: 00000000   ecx: 0000000a   edx: 0df4b200
esi: 098268b6   edi: 00000009   ebp: 0a32f800   esp: 06b71f1c
ds: 007b   es: 007b   ss: 0068
Process nfsd (pid: 2097, threadinfo=06b71000 task=06bf1a50)
Stack: ffff976c 098268b6 00000009 0a32f800 0e9bc1df 00000001 00000001 
0df4b200
        064fae60 0e94965c 0e9c000a 00000006 00000003 00000011 0df4b200 
0df4b200
        0e9bc0bc 0e9d0d58 0e9d0b18 0e9b24dd 06403014 0df4b264 0df4b200 
0e9d0d58
Call Trace:
  [<0e9bc1df>] nfs3svc_decode_readargs+0x123/0x169 [nfsd]
  [<0e94965c>] svc_udp_recvfrom+0x195/0x227 [sunrpc]
  [<0e9c000a>] nfsd4_decode_fattr+0x23e/0x4eb [nfsd]
  [<0e9bc0bc>] nfs3svc_decode_readargs+0x0/0x169 [nfsd]
  [<0e9b24dd>] nfsd_dispatch+0x6a/0x15d [nfsd]
  [<0e948b3a>] svc_process+0x32b/0x569 [sunrpc]
  [<0e9b233a>] nfsd+0x18e/0x2c7 [nfsd]
  [<0e9b21ac>] nfsd+0x0/0x2c7 [nfsd]
  [<021031d9>] kernel_thread_helper+0x5/0xb
Code: 8b 00 f6 c4 01 75 19 2b 1d 30 dd 37 02 c1 fb 05 c1 e3 0c 8d
  <6>loop: loaded (max 8 devices)
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