From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stuart Sheldon Subject: kvm guest: hrtimer issue with smp. Date: Tue, 04 May 2010 08:29:06 -0700 Message-ID: <4BE03D42.7090908@actusa.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from internal.actusa.net ([208.83.100.16]:40846 "EHLO internal.actusa.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933432Ab0EDP3K (ORCPT ); Tue, 4 May 2010 11:29:10 -0400 Sender: kvm-owner@vger.kernel.org List-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi all, Saw a long thread on this back in Oct. but did not see if this was resolved or not. We are experiencing "hrtimer: interrupt took ns" errors on the guest console with -smp 2 running on an Intel host. Both are running 2.6.33.3 vanilla. Guest is using kvm-timer, Host is using tsc. Guest will become completely unresponsive after about 23hrs. Review of logs after restart shows that the system suddenly shows a system time of 2 weeks in the past. Not sure what else to report here. I've changed the guest to a single CPU, and the problem appears to be gone... Let me know how we can help on this... Stuart Sheldon ACT USA - -- If you took all the girls I knew When I was single And brought them all together for one night I know theyd never match My sweet imagination And everything looks worse in black and white -- Paul Simon - "Kodachrome Lyrics" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iQIcBAEBCAAGBQJL4D0/AAoJEFKVLITDJSGSFdgQALYfHEQnFuOKxPAthFZpfV9G OZT2U0r1drwcxEPDXWlMxX+sOOItMjYkCdfJ4l4dlnOFRYigXP3puuYVocF2fXNW 2gJM7fGBl9uzm/jRBeuoaF1SX8qxp0oBzIj0G+3wstzDX/3f04T0bm/32QeyMgDH WmM2ElFlwATaVwsj+AIYyEvdFKMHW7erNNb6PVHUvTNv/SLLb7XII7jnVsBsJYZZ zz1YjhpTUFViKOobkD7nkbRCuhzEF86zKNCi4q5YnGFVBcX5v+qOExtqW/kRs0tv ibQZ0E8P+uuItdnSoo0hIIWzfetdiEvLp1ZJN1aAazyNypbtH7GIOQezOBQbSN4N Wzc53bxYL2Cer1/XnhtvgWq3TJc2a0/RiMFNh3fuCiY2WM80/NhdE+tMOXidKlOq vK3mSWlyu1GOxep2yoH8XQzLqTzDBeYeSaEsL8CGHtn92aim/lrgCoU3W4n9K+mT cHw1iEUmD9BZFEPAUj6bNwjvOQ0UPvhpiBlyrm6qoU9zK8ALAVTvCZj+9ZTv9tYJ s28A9UJJ+qGQ1FSGBVpWrhfSILpir+lGJFPRpiAXSqzYC/8i0ZkYJBDVi8LtX/Mf Q7NLVzXk6RgHcz3y/vr5ICjbyziiROFI8GbhmqtWobknT6AFaCr7rOHNoqbt91qW zjE2ZS381fcAqCYzQ+CA =KvAi -----END PGP SIGNATURE-----