Re: [PATCH 0/3] NFS regression in 2.6.26?, "task blocked for more than 120 seconds"

Kasparek Tomas
2009-01-09T14:56:44Z

On Tue, Dec 23, 2008 at 05:34:07PM -0500, Trond Myklebust wrote:
> On Tue, 2008-12-16 at 13:05 +0100, Kasparek Tomas wrote:
> > Hm, not happy to say that but it still does not work after some time. Now
> > the problem is opposite there are no connections to the server according to
> > netstat on client, just time to time there is
> >
> > pcnlp1.fit.vutbr.cz.15234 > kazi.fit.vutbr.cz.nfs: 40 null
> > kazi.fit.vutbr.cz.nfs > pcnlp1.fit.vutbr.cz.15234: reply ok 24 null
> >
> > (kazi is server). Will try to investigate more details.
>
> OK. Here is one more try. I've tightened up some locking issues with the
> previous patch.

Did tried this new version. Applied it to 2.6.27.10, but the behaviour is
the same like with the first version - when old mounts are removed by amd
new one are not created, fter a while, there are no sockets on the client
and just CLOSED sockets on server. Client is issuing null RPC checks each
30sec and they are OK, but no other communication between client and server
takes place.

15:45:41.238796 IP pcnlp1.897490 > kazi.nfs: 40 null
15:45:41.239009 IP kazi.nfs > pcnlp1.897490: reply ok 24 null

I will try to get more info, but if you have some idea where to look or
what to try, it will be helpful.

Thanks for your help

--

Tomas Kasparek, PhD student E-mail: kasparek@fit.vutbr.cz
CVT FIT VUT Brno, L127 Web: http://www.fit.vutbr.cz/~kasparek
Bozetechova 1, 612 66 Fax: +420 54114-1270
Brno, Czech Republic Phone: +420 54114-1220

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