> Several of us are seeing subtle problems with the NFS system under
> 2.2.x.
>
> Since the NFS stuff was moved into kernel-space, there has been a
> significant increase in tasks freezing due to NFS being device-locked.
> This can be easily reproduced by mounting a remote system, then shutting
> down that remote system without unmounting it.
>
> Shell sessions attempting to access directories on the shut-down
> machine lock-up solid (device-locked), and they cannot be killed by any
> means. Back when NFS was user-space we could at least kill, then
> restart these errant sessions.
>
> If curious, we are using 2.2.9 on x86 arch.
Are you using the 'intr' mount option? Without it, you should indeed
be seeing the behaviour described above.
Cheers,
Trond
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