From mboxrd@z Thu Jan 1 00:00:00 1970 From: "SourceForge.net" Subject: [ kvm-Bugs-2801212 ] sles10sp2 guest timer run too fast Date: Fri, 27 Nov 2009 08:02:03 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" To: noreply@sourceforge.net Return-path: Received: from ch3.sourceforge.net ([216.34.181.60]:31157 "EHLO ch3.sourceforge.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751169AbZK0ICA (ORCPT ); Fri, 27 Nov 2009 03:02:00 -0500 Sender: kvm-owner@vger.kernel.org List-ID: Bugs item #2801212, was opened at 2009-06-04 23:17 Message generated for change (Comment added) made by haoxudong You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2801212&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Jiajun Xu (jiajun) Assigned to: Marcelo Tosatti (mtosatti) Summary: sles10sp2 guest timer run too fast Initial Comment: With kvm.git Commit:7ff90748cebbfbafc8cfa6bdd633113cd9537789 qemu-kvm Commit:a1cd3c985c848dae73966f9601f15fbcade72f1, we found that sles10sp2 will run much faster than real, about 27s faster each after 60s real time. Reproduce steps: ---------------- (1)qemu-system-x86_64 -m 1024 -net nic,macaddr=00:16:3e:6f:f3:d1,model=rtl8139 -net tap,script=/etc/kvm/qemu-ifup -hda /share/xvs/var/sles10sp2.img (2)Run ntpdate in guest: ntpdate sync_machine_ip && sleep 60 && ntpdate sync_machine_ip Current result: ---------------- sles10sp2rc1-guest:~ # ntpdate sync_machine_ip && sleep 60 && ntpdate sync_machine_ip 31 May 23:16:59 ntpdate[3303]: step time server 192.168.198.248 offset -61.27418 31 May 23:17:32 ntpdate[3305]: step time server 192.168.198.248 offset -27.626469 sec ---------------------------------------------------------------------- Comment By: Xudong Hao (haoxudong) Date: 2009-11-27 16:02 Message: Sles10sp2 guest can get accurate time on the latest commit: kvm: 5e8cb552cb8b48244b6d07bff984b3c4080d4bc9 qemu-kvm: 48bb360cc687b89b74dfb1cac0f6e8812b64841c ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2801212&group_id=180599