From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Fri, 09 May 2003 18:25:29 +0000 Subject: Re: [Linux-ia64] Re: [PATCH] head.S fix for unusual load addrs Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Fri, 9 May 2003 10:52:25 -0700, Jesse Barnes said: Jesse> So, is there any consensus on the best path to pursue? Chris Wedgwood Jesse> is working on option #3, and I've got Tony's patch trimmed down to #2 Jesse> (with one piece missing--ia64_switch_to runtime patching), but none of Jesse> these are in either 2.4 or 2.5 yet. Maybe for 2.4 we should do #2 or Jesse> #3 and for 2.5 we could implement #1 with the virtual offsets Tony Jesse> mentioned earlier? I'm not sure. I got the impression Tony may be looking at the virtual remapping in region 5. I haven't heard whether text replication turned out to be important for 8870, but I'm starting to lean towards virtual remapping because it is more versatile (can handle both "strange" physical memory layouts and kernel replication). This, coupled with the fact that it doesn't break any of the existing tools makes it pretty compelling. Also, my primary objection about making the kernel model more complicated doesn't hold much water if we move everything to region 5. Would there be a downside to this on SGI's machines? --david