linux-kernel - Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

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Message-ID:  <loom.20080126T142451-347@post.gmane.org>
Date:	Sat, 26 Jan 2008 14:27:04 +0000 (UTC)
From:	Pascal Terjan <pterjan@...driva.com>
To:	linux-kernel@...r.kernel.org
Subject:  Re: 2.6.24 regression: pan hanging unkilleable and un-straceable

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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