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SubjectRe: [OOPS] 2.5.53 NFS (rpc.mountd)
On Sunday February 16, wrote:
> 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:

Can you produce this on a more recent kernel? A lot has happened
since 2.5.53. I cannot point to some particular patch and say 'this
fixes it', but I would be happier spending the time to chase it down
if I knew it was still relevant.


> 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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> When it absolutely, positively, has to be destroyed overnight.
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