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To: linux-kernel@vger.kernel.org
From: Pascal Terjan <pterjan@mandriva.com>
Subject: Re: 2.6.24 regression: pan hanging unkilleable and un-straceable
Date: Sat, 26 Jan 2008 14:27:04 +0000 (UTC)
Message-ID: <loom.20080126T142451-347@post.gmane.org>
References: <1200949086.6648.19.camel@Anastacia> <200801221625.58615.nickpiggin@yahoo.com.au> <1201354155.6853.4.camel@Anastacia> <200801270046.26648.nickpiggin@yahoo.com.au>
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Nick Piggin <nickpiggin <at> yahoo.com.au> writes: 
> On Sunday 27 January 2008 00:29, Frederik Himpe wrote:
> > I just succeeded to reproduce the problem with this patch. Does this
> > smell like an XFS problem?

I got the same issue using ext3

> Possible. Though I think it is more likely to be a bug in the
> new deadlock avoidance code in the generic buffered write path.
> Dang... I wonder why this hasn't come up earlier. It looks like
> pan's use of writev might be tickling it.
> 
> How quickly can you reproduce this?

When I was using pan daily one month ago, I got it twice over a week

> Can you use strace to see what the hanging syscall looks like?

I tried last week during 5 hours without luck, I can try again

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