From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Mon, 13 Apr 2015 19:08:27 +0200 (CEST) Received: from mailapp01.imgtec.com ([195.59.15.196]:12609 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27011532AbbDMRIZOwWOu (ORCPT ); Mon, 13 Apr 2015 19:08:25 +0200 Received: from KLMAIL01.kl.imgtec.org (unknown [192.168.5.35]) by Websense Email Security Gateway with ESMTPS id 54C08B9178C77; Mon, 13 Apr 2015 18:08:17 +0100 (IST) Received: from BAMAIL02.ba.imgtec.org (10.20.40.28) by KLMAIL01.kl.imgtec.org (192.168.5.35) with Microsoft SMTP Server (TLS) id 14.3.195.1; Mon, 13 Apr 2015 18:08:20 +0100 Received: from [192.168.159.37] (192.168.159.37) by bamail02.ba.imgtec.org (10.20.40.28) with Microsoft SMTP Server (TLS) id 14.3.174.1; Mon, 13 Apr 2015 10:08:18 -0700 Message-ID: <552BF7F8.5020008@imgtec.com> Date: Mon, 13 Apr 2015 12:08:08 -0500 From: "Steven J. Hill" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Lars Persson CC: "linux-mips@linux-mips.org" Subject: Re: [PATCH] MIPS: Fix HIGHMEM crash in __update_cache(). References: <1428672084-20676-1-git-send-email-larper@axis.com> <20150410134711.GC21107@linux-mips.org> <675481A1-B1B2-47BF-9AF9-2E7773497FEA@axis.com> In-Reply-To: <675481A1-B1B2-47BF-9AF9-2E7773497FEA@axis.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.159.37] 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: 46863 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: Steven.Hill@imgtec.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 04/10/2015 09:31 AM, Lars Persson wrote: > Ralf, > > I came to think that also non-executable mappings for highmem pages > could reach the flushing code in __update_cache() and trigger an > OOPS. > > Until the highmem patches are merged we should block highmem pages in > __update_cache(). Could you add this to the patch ? > > Sent from my iPhone > Did you look at the patches: http://patchwork.linux-mips.org/patch/9284/ http://patchwork.linux-mips.org/patch/9285/ Your patch seems rather similar to what is found in these. I have been trying to get these accepted, but so far no luck. Steve