From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Sat, 31 May 2003 03:16:40 +0000 Subject: Re: [Linux-ia64] sigaltstack and ar.bspstore 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 Sat, 31 May 2003 11:31:18 +1000, Matt Chapman said: Matt> I wasn't suggesting changing the layout, I was suggesting Matt> using one of the reserved slots. Unless you're referring to Matt> software that changes sc_ar_bsp... Yes, that's what I was referring to. Matt> I don't think there's currently enough information available Matt> upon return from the signal handler to decide whether to point Matt> bspstore at slot 63 or 0. It wouldn't be safe to always go Matt> for slot 63 because it might be beyond the start of the RBS. I'll have to think about this some more. Especially to make sure that there aren't any other places were we (I) made the assumption that bspstore never points to an RNaT slot. But it will take me a while before I get to it (in case I forget or you come up with a great solution, please ping me... ;-). --david