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Date:	Wed, 30 May 2007 13:30:41 +1000
From:	David Chinner <dgc@....com>
To:	"Luck, Tony" <tony.luck@...el.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Chinner <dgc@....com>,
	lkml <linux-kernel@...r.kernel.org>, linux-ia64@...r.kernel.org
Subject: Re: BUG: sleeping function called from invalid context at kernel/fork.c:385

On Wed, May 23, 2007 at 10:44:16AM -0700, Luck, Tony wrote:
> > > Saw this when running strace -f on a script on 2.6.21 on ia64:
> > > 
> > > BUG: sleeping function called from invalid context at kernel/fork.c:385
> > > in_atomic():1, irqs_disabled():0
>     ... snip ...
> > > I could reproduce it via 'strace -f sleep 1'
> > > 
> >
> > I'd say this is specific to ia64.   Someone would have spotted it on
> > x86 by now.
> 
> I tried the "strace -f sleep 1" on 2.6.22-rc2, and I didn't see this "BUG"
> there.  Can you try your other test cases on the latest kernel.  If it has
> already been fixed we can see about identifying the patch for possible backport
> to 2.6.21.stable

Sorry for taking so long to get back to this - I still see this in
2.6.22-rc2.

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group
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