From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FNmJ3-0004fv-SC for qemu-devel@nongnu.org; Mon, 27 Mar 2006 02:38:29 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FNmJ1-0004eX-Ht for qemu-devel@nongnu.org; Mon, 27 Mar 2006 02:38:28 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FNmJ1-0004eK-5z for qemu-devel@nongnu.org; Mon, 27 Mar 2006 02:38:27 -0500 Received: from [203.190.192.17] (helo=wasp.net.au) by monty-python.gnu.org with esmtp (Exim 4.52) id 1FNmKS-0001vy-PO for qemu-devel@nongnu.org; Mon, 27 Mar 2006 02:39:57 -0500 Message-ID: <442796AC.20103@wasp.net.au> Date: Mon, 27 Mar 2006 11:39:24 +0400 From: Brad Campbell MIME-Version: 1.0 Subject: Re: [Qemu-devel] VM Memory limit with kernel-kqemu? References: <200603261448.11433.andrew.james.barr@gmail.com> In-Reply-To: <200603261448.11433.andrew.james.barr@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org --RESEND-- Can someone let me know if this comes through twice? I'm having huge problems getting through to the list it would appear. Andrew Barr wrote: > I'm running a Windows 2000 SP4 guest on a Linux 2.6.16 host with Qemu CVS and > kqemu 1.3.0pre3. I am trying to use -kernel-kqemu. I have been allocating 256 > MB of RAM to my guest (out of 768 MB total) and I have found that using that > amount of memory with -kernel-kqemu causes Windows 2000 to freeze at the > graphical boot up screen (after 'Starting Windows...') and qemu to take up > 95-100% CPU. Reducing the amount of guest RAM to 160 MB makes that problem go > away. I also tried 192 MB and that did not work. Is there a limit to the > amount of memory that may be used with the -kernel-kqemu option? > I've used it with 512M with no problems.. how big is your tmpfs on the host? I found a while ago (prior to -kernel-kqemu) nasty things happened if you tried to allocate more memory than you had space available in /tmp I have mine configured for 1.5GB (I have 3GB of ram) and I can run 3 concurrent sessions, 2 with 512MB and 1 with 256MB and no problems. (All win2k sp4 guests) Filesystem Size Used Avail Use% Mounted on 192.168.2.82:/nfsroot 165G 68G 89G 44% / tmpfs 1.5G 4.0K 1.5G 1% /dev/shm none 1.5G 1.2M 1.5G 1% /tmp tmpfs 10M 2.7M 7.4M 27% /dev Regards, Brad -- "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." -- Douglas Adams