Strange NFS/reiserfs errors

Strange NFS/reiserfs errors

[Brian Tinsley]

Hi! I've posted this to the NFS mailing list, but wanted to drop it here 
as well to see if anyone may provide further insight.

---------------------------
Can anyone elaborate on what may have caused the following error:

Aug 14 22:09:09 clarc02 kernel: nfsd-fh: found a name that I didn't 
expect: files/19
Aug 14 22:09:40 clarc02 last message repeated 2314 times
Aug 14 22:15:56 clarc02 last message repeated 1088 times
Aug 14 22:17:10 clarc02 last message repeated 138 times
Aug 14 22:19:03 clarc02 last message repeated 138 times
Aug 14 22:20:53 clarc02 last message repeated 2 times
Aug 14 22:21:30 clarc02 last message repeated 73 times

The underlying filesystem is reiserfs and there was a high volume of 
writing taking place (or trying to) during this time. None of the writes 
succeeded as the client was returned EEXIST errors. However, the writes 
were reissued in full shortly after the last occurence and everything 
automagically started working properly again.

I'm trying to decipher the source code, but it's a bit out of my area of 
expertise ;-)

Thanks!

Re: Strange NFS/reiserfs errors

[Bernd Schubert]

Hi,

searching the archives of the reiserfs-ML and I guess also a general web 
search would show that this is fixed in 2.4.21!

Regards,
	Bernd


On Friday 15 August 2003 07:44, Brian Tinsley wrote:
> Hi! I've posted this to the NFS mailing list, but wanted to drop it here
> as well to see if anyone may provide further insight.
>
> ---------------------------
> Can anyone elaborate on what may have caused the following error:
>
> Aug 14 22:09:09 clarc02 kernel: nfsd-fh: found a name that I didn't
> expect: files/19
> Aug 14 22:09:40 clarc02 last message repeated 2314 times
> Aug 14 22:15:56 clarc02 last message repeated 1088 times
> Aug 14 22:17:10 clarc02 last message repeated 138 times
> Aug 14 22:19:03 clarc02 last message repeated 138 times
> Aug 14 22:20:53 clarc02 last message repeated 2 times
> Aug 14 22:21:30 clarc02 last message repeated 73 times
>
> The underlying filesystem is reiserfs and there was a high volume of
> writing taking place (or trying to) during this time. None of the writes
> succeeded as the client was returned EEXIST errors. However, the writes
> were reissued in full shortly after the last occurence and everything
> automagically started working properly again.
>
> I'm trying to decipher the source code, but it's a bit out of my area of
> expertise ;-)
>
> Thanks!

Re: Strange NFS/reiserfs errors

[Oleg Drokin]

Hello!

On Fri, Aug 15, 2003 at 12:44:33AM -0500, Brian Tinsley wrote:

> Hi! I've posted this to the NFS mailing list, but wanted to drop it here 
> as well to see if anyone may provide further insight.
> ---------------------------
> Can anyone elaborate on what may have caused the following error:
> Aug 14 22:09:09 clarc02 kernel: nfsd-fh: found a name that I didn't 

We believe the reason is iget4() race.
We have a workaround implemented in 2.4.21, so consider upgrading.
After you upgrade, please run reiserfsck (take latest reiserfsprogs
first. Current reiserfsprogs version is 3.6.11) on all reiserfs volumes you
have.

Bye,
    Oleg