From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LW7Tb-0000tU-T1 for qemu-devel@nongnu.org; Sun, 08 Feb 2009 06:05:27 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LW7TZ-0000qw-0g for qemu-devel@nongnu.org; Sun, 08 Feb 2009 06:05:27 -0500 Received: from [199.232.76.173] (port=42793 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LW7TY-0000qk-Pp for qemu-devel@nongnu.org; Sun, 08 Feb 2009 06:05:24 -0500 Received: from outbound.icp-qv1-irony-out4.iinet.net.au ([203.59.1.150]:7349) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LW7TY-0001q3-0t for qemu-devel@nongnu.org; Sun, 08 Feb 2009 06:05:24 -0500 Received: from hendrix (hendrix [192.168.200.99]) by hendrix.mega-nerd.net (Postfix) with SMTP id 66D8BABCE8 for ; Sun, 8 Feb 2009 22:05:20 +1100 (EST) Date: Sun, 8 Feb 2009 22:05:20 +1100 From: Erik de Castro Lopo Subject: Re: [Qemu-devel] ACPI weirdness with SVN head Message-Id: <20090208220520.6b3238ac.mle+tools@mega-nerd.com> In-Reply-To: <20090208213637.e76e8fd7.mle+tools@mega-nerd.com> References: <20090208213637.e76e8fd7.mle+tools@mega-nerd.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII 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 Erik de Castro Lopo wrote: > Is this a known problem? More info. If I disable ACPI with -no-acpi the VM boots but then chews up far more of the host CPU than previously. The only real explanation I can find for this on the guest side is a very high number of timer interrupts: guest > cat /proc/interrupts CPU0 0: 2575369 XT-PIC-XT timer 1: 9 XT-PIC-XT i8042 2: 0 XT-PIC-XT cascade 4: 536 XT-PIC-XT serial 8: 0 XT-PIC-XT rtc0 9: 0 XT-PIC-XT virtio0 11: 202 XT-PIC-XT virtio1, eth0 12: 111 XT-PIC-XT i8042 14: 4176 XT-PIC-XT ata_piix 15: 3676 XT-PIC-XT ata_piix NMI: 0 Non-maskable interrupts LOC: 0 Local timer interrupts RES: 0 Rescheduling interrupts CAL: 0 function call interrupts TLB: 0 TLB shootdowns TRM: 0 Thermal event interrupts THR: 0 Threshold APIC interrupts SPU: 0 Spurious interrupts ERR: 0 Cheers, Erik -- ----------------------------------------------------------------- Erik de Castro Lopo ----------------------------------------------------------------- "These are the finest moments in (post)modern life, when satire is completly indistinguishable from reality... I usually have to rely on the presidential elections for such dada." -- frenomulax on Jesux a christian Linux distro.