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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Frederik Himpe <fhimpe@telenet.be>
Subject: Re: 2.6.24 regression: pan hanging unkilleable and un-straceable
Date: Sat, 2 Feb 2008 11:53:56 +1100
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Cc: Andrew Morton <akpm@linux-foundation.org>, stable@kernel.org,
       Mike Galbraith <efault@gmx.de>, linux-kernel@vger.kernel.org
References: <1200949086.6648.19.camel@Anastacia> <200801281246.24043.nickpiggin@yahoo.com.au> <1201819559.2965.2.camel@Anastacia>
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On Friday 01 February 2008 09:45, Frederik Himpe wrote:
> On ma, 2008-01-28 at 12:46 +1100, Nick Piggin wrote:
> > On Sunday 27 January 2008 00:29, Frederik Himpe wrote:
> > > On di, 2008-01-22 at 16:25 +1100, Nick Piggin wrote:
> > > > > > On Tuesday 22 January 2008 07:58, Frederik Himpe wrote:
> > > > > > > With Linux 2.6.24-rc8 I often have the problem that the pan
> > > > > > > usenet reader starts using 100% of CPU time after some time.
> > > > > > > When this happens, kill -9 does not work, and strace just hangs
> > > > > > > when trying to attach to the process. The same with gdb. ﻿ps
> > > > > > > shows the process as being in the R state.
> >
> > Well after trying a lot of writev combinations, I've reproduced a hang
> > *hangs head*.
> >
> > Does this help?
>
> Just to confirm: in four days of testing, I haven't seen the problem
> anymore, so it looks like this was indeed the right fix.

Thanks very much for reporting and testing. This patch needs to go
into 2.6.24.stable and upstream.
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