From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark van Dijk Subject: Re: Kernel crash with acpi_processor, cpu_idle and intel_idle =y Date: Thu, 26 Jul 2012 02:30:45 +0200 Message-ID: <20120726023045.691b21d4@internecto.net> References: <20120722181611.7ae03506@internecto.net> <500D7B96020000780008FF30@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <500D7B96020000780008FF30@nat28.tlf.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Hi Jan, > > When I set CONFIG_ACPI_PROCESSOR, CONFIG_CPU_IDLE and > > CONFIG_INTEL_IDLE to y then I cannot boot Xen; there is a crash. > > Without providing us with the details of the crash, I don't think > anyone will be able to help here. Yes, I'll post those as soon as I can. > > Is it impossible to use INTEL_IDLE with Xen? If this is a known > > issue then maybe someone can add info to the INTEL_IDLE help text > > in the kernel configuration... > > All CPU idle management happens in Xen, and the corresponding > code in the Dom0 (and DomU) kernel gets turned off. There's no > need to clutter the kernel config option with Xen specific information > (the kernel ought to work irrespective of its setting). Here is a message I posted a month ago: http://lists.xen.org/archives/html/xen-users/2012-06/msg00403.html Since then I found that the behaviour of xenpm changed to a working state when CONFIG_ACPI_PROCESSOR=y. See my reply, posted a couple of minutes ago, to Konrad and xen-devel for more info. > > PS I am not receiving xen-devel messages but this message does > > probably belong there so I'm posting it there too. > > But nevertheless please don't cross-post. Alright sorry, xen-users has been removed. Mark