Re: mount.nfs oops [was: mmotm 2009-09-03-16-35 uploaded]

From: Trond Myklebust
Date: Fri Sep 04 2009 - 18:12:31 EST

On Fri, 2009-09-04 at 22:54 +0200, Jiri Slaby wrote:
> On 09/04/2009 01:40 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote:
> > The mm-of-the-moment snapshot 2009-09-03-16-35 has been uploaded to
> Hi, I got an oops while mounting an nfs:
> BUG: unable to handle kernel NULL pointer dereference at 000000000000001d
> IP: [<ffffffffa003924f>] rpcauth_lookupcred+0x4f/0xc0 [sunrpc]

This looks like the auth->au_ops->lookup_cred() call failing due to a
faulty pointer, which should be impossible.

I note that you had a kernel taint due to a warning before this Oops
happened. Any details?

Also, were you doing anything special at the time (for instance removing
a module)?

Trond Myklebust
Linux NFS client maintainer

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