From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: Xen default install - no cpufreq on dom0 ? Date: Tue, 23 Feb 2016 22:44:56 +0000 Message-ID: <56CCE0E8.5030209@citrix.com> References: <20160223220012.GB17927@char.us.oracle.com> <20160223221809.GI25240@wotan.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160223221809.GI25240@wotan.suse.de> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: "Luis R. Rodriguez" , Konrad Rzeszutek Wilk Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org On 23/02/2016 22:18, Luis R. Rodriguez wrote: > On Tue, Feb 23, 2016 at 05:00:12PM -0500, Konrad Rzeszutek Wilk wrote: >> On Tue, Feb 23, 2016 at 12:48:18PM -0800, Luis R. Rodriguez wrote: >>> For a while now I've been installing Xen from source on my Debian box, >>> with a default configuration always. This is party why I've run into >>> compile issues before it seems, but I've also just picked up on >>> another possible issue. My system on dom0 overheats and shuts itself >>> off. For a while I didn't think this was Xen related and perhaps >>> related to the fact that I built this system myself. However, after >>> running Debian without Xen (rm -rf /boot/xen*; update-grub; reboot; >>> systemd-detect-virt yield none) it would seem this does not happen. >>> What's a bit concerning though is even if I run offlineimap in >>> singlethreaded mode (offlineimap -1) the machine overheats and shuts >>> itself off, so I don't necessarily need to be doing a lot of work. I >>> tried compiling the kernel without Xen while running offlineimap as >>> well with make -j 8 and it doesn't overheat, meanwhile on Xen dom0 >>> just using offlineimap -1 seems to trigger a shutoff rather quickly. >> What exactly triggers the shutoff. > Clearly, overheating. I'm not yet sure if its just BIOS/kernel/hypervisor > induced forced shutdown. Will try again, but this is rather intrusive as > its on my personal home system. You have dislodged the heat sync and the processor is shutting down due to thermal cutout. This is a hardware issue, not a software issue. ~Andrew