From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Gibson Date: Wed, 22 Feb 2006 02:17:14 +0000 Subject: Re: IA64 non-contiguous memory space bugs Message-Id: <20060222021714.GD23574@localhost.localdomain> List-Id: References: <20060222001359.GA23574@localhost.localdomain> <20060221.163935.32626284.davem@davemloft.net> In-Reply-To: <20060221.163935.32626284.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "David S. Miller" Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org On Tue, Feb 21, 2006 at 04:39:35PM -0800, David S. Miller wrote: > From: David Gibson > Date: Wed, 22 Feb 2006 11:13:59 +1100 > > > Quite some time ago, I found (by inspection) an ia64 specific bug > > related to its non-contiguous user address space. I've never done > > anything about it, because I don't have an ia64 to test on - but > > somebody should fix it. Recently I've spotted another possible bug, > > also by inspection - I don't know enough about ia64 to tell if it's a > > real problem or not. > > Good catch David, I'll need to add similar checks on sparc64 as > we have a 64-bit virtual address space hole on several processors > there. Ok, that patch adds all the checks in generic code anyway, so all you should need for sparc64 is an appropriate REGION_MAX() macro. -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson