lkml.org 
[lkml]   [2008]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: NFS regression? Odd delays and lockups accessing an NFS export.
From
Date
On Fri, 2008-08-22 at 11:23 +0100, Ian Campbell wrote:
> On Mon, 2008-08-18 at 15:20 -0400, Trond Myklebust wrote:
> > Please try to reproduce the hang, then do
> >
> > echo 0 >/proc/sys/sunrpc/rpc_debug
> >
> > and send the output from 'dmesg'...
>
> I've also been seeing some NFS related lockups, although I'm not sure if
> they are the same as the one in this thread or not. Client is 2.6.26
> (Debian's kernel) and Server is 2.6.25 (also a Debian kernel, but from
> backports.org).
>
> rpc_debug on the server gives nothing, on the client gives:
> [144741.637997] -pid- proc flgs status -client- -prog- --rqstp- -timeout -rpcwait -action- ---ops--
> [144741.637997] 3439 0004 0080 -11 f3f48200 100003 f7770000 0 xprt_sending fa0ae88e fa0bddf4
> [144741.637997] 3438 0001 00a0 0 f77f2a00 100003 f77700d0 15000 xprt_pending fa0ae88e fa0bddf4

That's probably also a networking device driver issue candidate: your
RPC task is queued up waiting to be sent.

What networking card+device driver are you using here?

> There are no processes running with pid 3439 3438 (I don't think it's
> that sort of pid though).

The 'pid' is an internal RPC cookie that just serves to identify and
track specific RPC requests.

Cheers
Trond



\
 
 \ /
  Last update: 2008-08-22 20:11    [from the cache]
©2003-2011 Jasper Spaans