Re: NFS problem with recent 2.6 kernels (also serial console weirdness)

From: foo
Date: Wed Jun 16 2004 - 20:45:02 EST


On Wed, Jun 16, 2004 at 03:20:55PM -0400, foo wrote:
> On Mon, Jun 14, 2004 at 08:04:36PM -0400, foo@xxxxxxxxxxxxxxxxx wrote:
> > Hello, I have an x86_64 NFS server with a 32-bit userspace (debian
> > woody+backports as necessary) that starts to refuse mount requests after
> > a while (sometimes no time at all), The symptom from the client side
> > (tested with Linux 2.6, and Solaris 9) is this:
> >
> > mount: RPC: Unable to receive; errno = Connection refused
>
> This still happens with 2.6.7. I did
>
> umount -a -t nfs; mount -a
>
> on a client and I had to restart the NFS server, portmap, etc. 4 times
> to get everything mounted again.

Hmm, so I didn't see this in the logs (a result of the above):

rpc.mountd[752]: segfault at 000000004b87ad6e rip 00000000080503e9 rsp 00000000ffffd684 error 4
nfsd: last server has exited
nfsd: unexporting all filesystems
rpc.mountd[3959]: segfault at 000000004b87ad6e rip 00000000080503e9 rsp 00000000ffffd494 error 4
nfsd: last server has exited
nfsd: unexporting all filesystems
rpc.mountd[3996]: segfault at 000000004b87ad6e rip 00000000080503e9 rsp 00000000ffffd494 error 4
nfsd: last server has exited
nfsd: unexporting all filesystems
rpciod: active tasks at shutdown?!
RPC: error 5 connecting to server localhost
RPC: failed to contact portmap (errno -5).

Is this a bug in mountd, then? If so, sorry for the noise.

-ryan
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