From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zoltan Menyhart <Zoltan.Menyhart@bull.net>
Date: Mon, 13 Mar 2006 09:13:46 +0000
Subject: Re: Fix race in the accessed/dirty bit handlers
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To: linux-ia64@vger.kernel.org

Luck, Tony wrote:

> If another processor has a purge floating out there on the
> bus at this time, it would be because that other processor
> was making some change to this mapping.  In which case it
> would have executed:
> 
>  *pte = new_value
>  ptc
> 
> Are you saying that these events may become visible to the
> processor that is executing the dirty_bit handler in either
> order, so that you are worried we'll see the old *pte value
> when we do the load, but miss the purge because we didn't
> wait for the itc.d to complete before we did the load?

Yes, I should have said in this way.

Thanks,

Zoltan