From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chen, Kenneth W" Date: Fri, 28 Oct 2005 17:59:03 +0000 Subject: RE: ia64 get_mmu_context patch Message-Id: <200510281759.j9SHx3g23205@unix-os.sc.intel.com> List-Id: References: <200510271728.j9RHScS0002221922@kitche.zk3.dec.com> In-Reply-To: <200510271728.j9RHScS0002221922@kitche.zk3.dec.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Peter Keilty wrote on Friday, October 28, 2005 7:50 AM > > This printk is spurious. When I first read it, my reaction > > is: rid as in region register is architecturally defined at > > maximum 24 bits. Printing 21-bit for rid is misleading. We > > currently use 8 rid number per process. > > So 21 bit for context number is the max. max_ctx will never > > exceed 1<<21. > > Suggest this printk to be dropped. > > I add that per mail with Tony, He suggested that we might limit > the bitmap size so that if the rid size was increase in future > hardware that a Giga byte Would not be allocated. The printk was > to let people know that the rid was being limited to 2^21 if the > rid was enlarged. If I were you, I would try to convince Tony with the argument I presented in my earlier post :-) - Ken