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Re: prcesses stuck in D state (lock_p)

To: Christian Guggenberger <Christian.Guggenberger@xxxxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: prcesses stuck in D state (lock_p)
From: Nathan Scott <nathans@xxxxxxx>
Date: Mon, 17 Feb 2003 09:55:52 +1100
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <20030216191201.A29247@xxxxxxxxxxxxxxxxxxxxxxxx>
References: <20030216191201.A29247@xxxxxxxxxxxxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mutt/1.5.3i
On Sun, Feb 16, 2003 at 07:12:01PM +0100, Christian Guggenberger wrote:
> Hi all,
> 
> with recent cvs Kernels (namely with
> SGI XFS snapshot 2.4.20-2003-01-14_00:43_UTC with ACLs, quota, no debug 
> enabled )
> I see, after a week of heavy load, one or often more processes stuck in D 
> state.
> All that processes are acessing nfs-mounts, such as : (Output of ps -efl)
> 
> 000 D abc12345   921     1  0  69   0 -   404 lock_p Feb14 ? 00:00:00 
> md5sum -v -c sums
> 
> I have also machines accessing the same nfs-share (running 2.4.19-xfs-cvs 
> of October) with no problems at all.
> I don't want to blame xfs here directly, but I like to know if someone of 
> you guys is seeing a similiar behavour...
> 

I have been seeing a similar issue in a couple of the QA tests.
I've traced my issue back to a recent regression on the XFS IO
path - I expect to have a fix for that checked in later today;
hopefully this will be the fix for the problem you're hitting
as well (I'm not using NFS at all here though).

cheers.

-- 
Nathan


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