Re: Fedora 14: Shutdown problem

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On 01/30/2011 08:40 PM, JB wrote:
> Terry Barnaby<terry1<at>  beam.ltd.uk>  writes:
>
>> ...
>
> Your analysis is very plausible.
> I remember from Slackware (many years ago ...) - it took explicit steps to
> TERM active processes, reasonably waited for them, and then killed them.
>
> I tried to follow the selinux line as well.
> The support for nfs home dirs caused problems in the past.
> You have a mix of nfs3 and nfs4, and the nfs4 may be buggy (some selinux and
> 'mount' related features are scheduled to be ironed out in F15).
>
> I would dive in, just for kicks, and tried both cases:
> - switch selinux to permissive mode ; this may not be enough, so ...
> - disable selinux entirely
> You can do it on the kernel command line or /etc/sysconfig/selinux - but you
> have to shutdown twice in order to test the halt script.
>
> JB
>
>
>
>
>
>
Hi,

Thanks for the info. selinux is actually disabled on all of these
systems. I'm not sure why /home uses NFS 3 while the others use NFS4.
They are from the same server and there is no specific config
for 3 or 4, so on Fedora 14 I would have expected them to be 4.
The server is Fedora 14 as well.

I think it is the /home mount that is likely to be causing the
problem (as the GUI programs are probably accessing files in the users 
directory) and this uses NFS V3. So I wouldn't have expected the
NFS V4 code to be much involved here.

Note this is a Fedora 14 issue. Fedora 12 has been running in this environment 
for more than a year with the same setup without this issue.

I could add a delay before the unmount the NFS file systems as see if this
reduces the problem.

Terry
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