Re: kernel BUG at /data/lemmy/linux.trees.git/fs/nfs/idmap.c:681!

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On Thu, 2012-09-27 at 17:39 +0200, Joerg Roedel wrote:
> On Thu, Sep 27, 2012 at 03:32:02PM +0000, Myklebust, Trond wrote:
> 
> > Does your checked out copy of 3.6-rc7 contain commit c50669 (NFS:
> > Clear key construction data if the idmap upcall fails)? The latter was
> > merged in3.6-rc3, and is reported to fix the problem for the other
> > testers.
> 
> Yes, it contains that commit. I was about to test plain v3.6-rc7 without
> my patches (not nfs related, of cource) on-top, but unfortunatly the
> disk with the root-fs died :-/
> I am about to set up the box again and test plain -rc7.

Please do.

I cannot see how that BUG_ON can be triggered in the current code, given
that the only place where idmap->idmap_key_cons is set to a non-NULL
value is covered by a mutex, and that it is always cleared before we
release said mutex.

-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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