NFS client kernel issue?

[Stefan Bader]

I cannot recall anything NFS specific that would matter. But there is quite a 
bunch of stable patches that need to get into Jaunty. I have preview packages 
if that on https://launchpad.net/~stefan-bader-canonical/+archive/jaunty
which you could try as well. Nothing directly says rpc or nfs but maybe 
something in net or vfs.

Regards,
Stefan


Keith Jackson wrote:
> Hi,
> I've run into a strange problem, and I'm not sure where to ask about  
> it. It appears to be kernel related, so hopefully someone here can  
> shed some light on it for me. I have a over a dozen ubuntu 9 server  
> machines that share an NFS filesystem served up on a FreeBSD machine.  
> We recently upgraded the FreeBSD box to FreeBSD 7.2. The ubuntu  
> machines are running the standard 2.6.28-11-server kernel.
> 
> At this point, we started having problems with NFS on all of the  
> ubuntu machines. They would come up, mount the NFS shares and then  
> 5-10 minutes later NFS would be hung. I ran wireshark on one of them,  
> while doing "ls -l ~username". When NFS was working everything looked  
> fine. Once it hung, I would see the normal YP MATCH RPC call looking  
> for the entry for "username". The NIS server would return the password  
> entry for "username" as I'd expect. When things were working, I'd then  
> see the standard NFS traffic. When NFS was hosed, the YP MATCH reply  
> would be the last net traffic I would see to the NFS server. Nothing  
> NFS related would ever happen. An strace would show that the ls was  
> hung in a stat64 call.
> 
> A reboot of the system would cause things to start working for a  
> while, but 5-10 minutes later NFS would hang. I eventually updated to   
> a 2.6.30 kernel from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30/ 
>   This has fixed the problem.
> 
> Any thoughts on what the problem might be, or how I might go about  
> debugging it better?
> thx,
> --keith
> --------------------------------------------------------------------------------------------------------
> Keith R. Jackson                                     email: KRJackson at lbl.gov
> MS: 50B-2239                                         phone: 510-486-4401
> Lawrence Berkeley National Lab        url: http://www-itg.lbl.gov/~kjackson/
> ----------------------------------------------------------------------------------------------------------
> 
> 
> 


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