linux-kernel - Re: [PATCH -rt] update kmap

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Date:	Wed, 27 Dec 2006 16:05:30 -0800
From:	Daniel Walker <dwalker@...sta.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -rt] update kmap_atomic on !HIGHMEM

On Wed, 2006-12-27 at 22:25 +0100, Ingo Molnar wrote:
> * Daniel Walker <dwalker@...sta.com> wrote:
> 
> > I got some scheduling while atomic on x86-64 , and since x86-64 
> > doesn't seem to have HIGHMEM there's no workaround for kmap_atomic() .
> > 
> > This patch adds the same as i386 HIGHMEM for !HIGHMEM.
> 
> the problem is that this does not disable pagefaulting while 
> kmap-atomic. Could you try the patch below, does it solve the assert?
> 


It hasn't crashed after about an hour of stress.. One comment on the
patch tho , the pagefault_enable/pagefault_disable need module exports,
I saw the build complaining about them.

Daniel

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