NFSv4 client lock-ups

[Trond Myklebust]

On Fri, 2006-12-22 at 03:17 +0100, Fredrik Tolf wrote:
> On Sun, 2006-12-10 at 05:53 +0100, Fredrik Tolf wrote:
> > During that time, it seems completely random whether other processes
> > that also use NFS will lock up on the same thing. Sometimes they do,
> > other times they don't. I've never seen *all* NFS-using processes lock
> > up at the same time. When several processes lock up, it seems they all
> > continue running at the same time.
> 
> I just watched this happening even to the X server, which I cannot
> imagine would access the NFS filesystem (I've only got /home over
> NFSv4). Any idea how this could be?
> 
> Fredrik Tolf

Which X server? A few of them are notorious for causing various forms of
memory corruption.

You should also run a memtest86 session, just in case you've got a case
of bad hardware.

Trond