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SubjectRe: [opensuse] nfs_update_inode: inode X mode changed, Y to Z
Trond Myklebust wrote:
> On Wed, 2008-03-12 at 10:55 -0700, Adam Schrotenboer wrote:
>
>> Another excerpt from last night.
>>
>> Mar 12 00:53:16 wanda kernel: nfs: server 192.168.1.27 not responding,
>> still trying
>> Mar 12 00:53:18 wanda kernel: nfs: server 192.168.1.27 OK
>> Mar 12 00:54:29 wanda kernel: nfs_update_inode: inode 1075049148 mode
>> changed, 0040755 to 0100644
>>
>
> Hang on. That does not look like an XID collision problem...
>
> That code path basically means that the fileids/inode numbers match,
> which would not be the case if we were talking about an XID collision
> causing the reply cache to replay an old request...
>
> That message rather symptomatic of a filehandle reuse problem. In other
> words a NFS filehandle appears to be reused to label a regular file
> after it has been used for a directory with the same fileid/inode
> number. That is a definite server bug.
>
> Are you sure that you are using the regular kernel nfs server?
>
>
Quite. OpenSuSE 10.2 stock unmodified kernel.

dolphin:~ # uname -a
Linux dolphin 2.6.18.2-34-default #1 SMP Mon Nov 27 11:46:27 UTC 2006
x86_64 x86_64 x86_64 GNU/Linux

dolphin:~ # top -bn1 |grep nfsd


PID PPID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3916 1 root 15 0 0 0 0 S 0 0.0 3:04.42 nfsd
3942 1 root 15 0 0 0 0 S 0 0.0 3:11.88 nfsd
(there's quite a bit more of these threads than this (32), but they all
look the same in top or ps)


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