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Re: [2.6.32] scheduling while atomic

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [2.6.32] scheduling while atomic
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 2 Nov 2010 12:02:01 -0400
Cc: Martin Hamrle <martin.hamrle@xxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <20101102001244.GP2715@dastard>
References: <4CCED8B2.2030604@xxxxxxxx> <20101102001244.GP2715@dastard>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Nov 02, 2010 at 11:12:44AM +1100, Dave Chinner wrote:
> With a trace like that, it's almost certain that you've blown
> the stack and that is why the system is crashing. Can you turn on
> stack depth checking (might require a kernel rebuild) so we can tell
> if these problems are a result of overruning the stack?

Even better move on to a recent kernel - we're now preventing the
VM from reentering the filesystem for reclaim, which should take
care of all practical stack overlfow issues.

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