From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 53B35DDE1B for ; Thu, 9 Aug 2007 06:43:39 +1000 (EST) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1IIsNR-0004f9-7n for linuxppc-dev@ozlabs.org; Wed, 08 Aug 2007 22:43:33 +0200 Received: from bi01p1.co.us.ibm.com ([32.97.110.142]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 08 Aug 2007 22:43:33 +0200 Received: from hollisb by bi01p1.co.us.ibm.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 08 Aug 2007 22:43:33 +0200 To: linuxppc-dev@ozlabs.org From: Hollis Blanchard Subject: Re: Fix small race in 44x tlbie function Date: Wed, 8 Aug 2007 20:43:25 +0000 (UTC) Message-ID: References: <20070807042050.GJ13522@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: news List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 07 Aug 2007 14:20:50 +1000, David Gibson wrote: > > This patch fixes the problem in both arch/ppc and arch/powerpc by > inhibiting interrupts (even critical and debug interrupts) across the > relevant instructions. How could a critical or debug interrupt modify the contents of MMUCR? -- Hollis Blanchard IBM Linux Technology Center