From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: KVM 29: Page fault in kernel mode while booting GNU/kFreeBSD Date: Wed, 25 Jul 2007 11:27:17 +0300 Message-ID: <46A70965.9020305@qumranet.com> References: <20070714170618.GB6527@hall.aurel32.net> <46A05B23.50409@qumranet.com> <46A05CF3.1070900@qumranet.com> <20070724231700.GD28101@hall.aurel32.net> <46A6C00C.8030609@qumranet.com> <20070725081954.GA14103@hall.aurel32.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Aurelien Jarno Return-path: In-Reply-To: <20070725081954.GA14103-OqXK5JiLQY5aJl8KAwiEcA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Aurelien Jarno wrote: > After a short discussion on IRC, it seems that all 0x02 0x01 > instructions do not use the writeback. Please find an updated and > signedoff patch below. > > KVM: disable writeback for 0x02 0x01 instructions. > > 0x02 0x01 instructions (ie lgdt, lidt, smsw, lmsw and invlpg) does > not use writeback. This patch set no_wb=1 when emulating those > instructions. > > Signed-off-by: Aurelien Jarno > It's in, thanks. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/