From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuck Ebbert Subject: Re: Could the k8temp driver be interfering with ACPI? Date: Fri, 16 Feb 2007 14:31:44 -0500 Message-ID: <45D606A0.5020606@redhat.com> References: <45D5EA88.7090300@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com ([66.187.233.31]:49282 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1946058AbXBPTdx (ORCPT ); Fri, 16 Feb 2007 14:33:53 -0500 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Andi Kleen Cc: linux-kernel , linux-acpi@vger.kernel.org, lm-sensors@lm-sensors.org Andi Kleen wrote: > Chuck Ebbert writes: >> So, could ACPI and the k8temp driver be at odds? > > Yes, there is no locking between ACPI and Linux drivers for register access. > e.g. if there is a indexed register both try to access (and temperature > sensors tend to use these things) they can race and get corrupted data. I blacklisted the k8temp driver and everything looks OK now. From mboxrd@z Thu Jan 1 00:00:00 1970 From: cebbert@redhat.com (Chuck Ebbert) Date: Fri, 16 Feb 2007 19:31:44 +0000 Subject: [lm-sensors] Could the k8temp driver be interfering with ACPI? Message-Id: <45D606A0.5020606@redhat.com> List-Id: References: <45D5EA88.7090300@redhat.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andi Kleen Cc: linux-kernel , linux-acpi@vger.kernel.org, lm-sensors@lm-sensors.org Andi Kleen wrote: > Chuck Ebbert writes: >> So, could ACPI and the k8temp driver be at odds? > > Yes, there is no locking between ACPI and Linux drivers for register access. > e.g. if there is a indexed register both try to access (and temperature > sensors tend to use these things) they can race and get corrupted data. I blacklisted the k8temp driver and everything looks OK now.