From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 25 Jun 2003 05:59:22 +0100 (BST) Received: from p508B6A7B.dip.t-dialin.net ([IPv6:::ffff:80.139.106.123]:25802 "EHLO dea.linux-mips.net") by linux-mips.org with ESMTP id ; Wed, 25 Jun 2003 05:59:20 +0100 Received: from dea.linux-mips.net (localhost [127.0.0.1]) by dea.linux-mips.net (8.12.8/8.12.8) with ESMTP id h5P4xIML029426; Wed, 25 Jun 2003 06:59:19 +0200 Received: (from ralf@localhost) by dea.linux-mips.net (8.12.8/8.12.8/Submit) id h5P4xG4Y029425; Wed, 25 Jun 2003 06:59:16 +0200 Date: Wed, 25 Jun 2003 06:59:16 +0200 From: Ralf Baechle To: Joseph Chiu Cc: Pete Popov , Linux MIPS mailing list Subject: Re: wired tlb entry? Message-ID: <20030625045916.GA28556@linux-mips.org> References: <1055873800.4383.220.camel@zeus.mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 2701 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips On Tue, Jun 17, 2003 at 11:51:13AM -0700, Joseph Chiu wrote: > Michael Guo suggested add_wired_entry -- I'm giving that a try now. I'm > trying to stick to "the kernel that we trust" (from the perspective here) > because I'm worried about what I end up breaking trying to take a new > kernel. > > I am behind the time, though, so I'll try to test out 2.4.21-pre4 when I get > back (I'm not available to run the tests during the rest of this week). Usual warning - wired entries are almost always a bad idea. TLB entries are a scarce resource and wiring will reduce the number available for random replacement even further raising the amount of CPU burned in the TLB reload handler. Ralf