Re: Processes stuck in nfsreq

Since we don't have a core, is it possible for me to get
access to your kgdb client and the target host ? I was 
unable to reproduce this on my setup last time I tried
(when you reported the issue first).

(I've been sick this week, but I can look at this first thing
Monday).

mohan

--- Kris Kennaway <kris_at_obsecurity.org> wrote:

> On Thu, Feb 03, 2005 at 10:29:16AM -0800, Mohan Srinivasan wrote:
> > Hi,
> > 
> > In the info you have below, the NFS request was not sent (R_SENT
> > is not set). We didn't send out the request because possibly nm_cwnd 
> > didn't allow us to send the request. If nfs_request() could not send 
> > the request, then typically, the request would be retransmitted from 
> > nfs_timer(). 
> > 
> > If nm_cwnd is full, then there must be a lot of outstanding requests 
> > that haven't been replied to yet (on this mount), which is the fundamental
> > issue.
> > 
> > Can you force a core dump and send me a pointer to it ?
> > 
> > Also, after you force a core, can you also try a quick workaround - someone
> > else also reported NFS client hangs and said that things were fine
> > after they set mpsafenet to 0. It would be good to see if there's a
> > correlation there.
> 
> FYI, it looks like turning off mpsafenet indeed masks the bug.
> 
> Kris
> 

> ATTACHMENT part 2 application/pgp-signature