Re: System hangs due to NFS share

[Sylvain <sylvaintersideral@gmail.com>]

2012/1/23 Frank <frank@anotheria.net>:
> On Mon, 2012-01-23 at 11:15 +0100, Sylvain wrote:
>> Hi,
>>
>> I have an NFS share mounted on my Debian testing computer with default
>> mount options. It works fine but as soon as my computer loses network
>> access or the NAS is disconnected or shut down, the system becomes
>> unstable:
>>
>> - In KDE, everything is frozen (because of the file manager I think)
>> - If I try to cd to the mountpoint, it makes the console hang forever
>> - I can't umount the mountpoint, as the umount command hangs. Also the
>> -f flag doesn't change anything
>> - I can't even shutdown my computer anymore and I'm forced to use the
>> magic keys to be able to reboot it
>>
>> I tried different network managers (wicd, network-manager), different
>> ways to connect (wifi, wired), and different mount options (using a
>> hard nfs mount, specifying the retry option) but that didn't help. I
>> really don't know what to try next and this is really driving me mad.
>
> Mount option intr should help.
>
> man nfs
>
> Frank

I already tried this option too, but it didn't help. Also according to
the manpage:

> The intr / nointr mount option is deprecated after kernel 2.6.25.  Only SIGKILL can interrupt a pending NFS operation on these kernels, and  if  specified, this mount option is ignored to provide backwards compatibility with older kernels.

Sylvain