Re: processes stuck in D state

[Michael Buesch <fsdeveloper@yahoo.de>]

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On Monday 05 May 2003 17:24, Mike Waychison wrote:
> On Mon, 5 May 2003, Michael Buesch wrote:
> > On Monday 05 May 2003 07:52, Zeev Fisher wrote:
> > > Hi!
> >
> > Hi Zeev!
> >
> > > I got a continuos problem of unkillable processes stuck in D state (
> > > uninterruptable sleep ) on my Linux servers.
> > > It happens randomly every time on other server on another process ( all
> > > the servers are configured the same with 2.4.18-10 kernel ). Here's an
> > > example :
> >
> > [snip]
> >
> > > Has anyone noticed the same behavior ? Is this a well known problem ?
> >
> > I've had the same problem with some 2.4.21-preX twice (or maybe more
> > times, don't remember) on one of my machines.
> > IMHO it has something to do with NFS. (I'm using this box as a
> > NFS-client). I wish, I could reproduce it one more time, to do some
> > traces, etc on it. But I've not found a way to reproduce it, yet.
>
> This happens when you mount an NFS mount with the 'hard' option (default)
> and a mount's handle expires incorrectly (eg: server crash).
> Read the mount manpage for an explanation to the downsides of using
> the 'soft' option.
>
>
> Mike Waychison

my fstab-entry:
192.168.0.50:/mnt/nfs_1 /mnt/nfs_1      nfs             rw,hard,intr,user,nodev,nosuid,exec         0 0

from man mount:
[snip] The process cannot be interrupted or killed unless you also specify intr. [/snip]

I can't interrupt any process that accessed the NFS-server
while shutting down the server, although intr is specified.
_That's_ my problem. :)

- -- 
Regards Michael Büsch
http://www.8ung.at/tuxsoft
 18:23:58 up 48 min,  3 users,  load average: 1.20, 1.05, 0.93
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