From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LyhvL-0001dw-QM for qemu-devel@nongnu.org; Tue, 28 Apr 2009 03:40:15 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LyhvH-0001dU-00 for qemu-devel@nongnu.org; Tue, 28 Apr 2009 03:40:14 -0400 Received: from [199.232.76.173] (port=52192 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LyhvG-0001dR-P4 for qemu-devel@nongnu.org; Tue, 28 Apr 2009 03:40:10 -0400 Received: from mx20.gnu.org ([199.232.41.8]:9901) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LyhvG-0002TR-8j for qemu-devel@nongnu.org; Tue, 28 Apr 2009 03:40:10 -0400 Received: from fmmailgate03.web.de ([217.72.192.234]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LyhvE-0004cY-M6 for qemu-devel@nongnu.org; Tue, 28 Apr 2009 03:40:08 -0400 Received: from smtp08.web.de (fmsmtp08.dlan.cinetic.de [172.20.5.216]) by fmmailgate03.web.de (Postfix) with ESMTP id AECBBFB515FE for ; Tue, 28 Apr 2009 09:40:05 +0200 (CEST) Received: from [88.66.124.186] (helo=[192.168.1.123]) by smtp08.web.de with asmtp (TLSv1:AES256-SHA:256) (WEB.DE 4.110 #277) id 1LyhvB-0004O5-00 for qemu-devel@nongnu.org; Tue, 28 Apr 2009 09:40:05 +0200 Message-ID: <49F6B2D1.8070906@web.de> Date: Tue, 28 Apr 2009 09:40:01 +0200 From: Jan Kiszka MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig4B0C0969D3CFFF46DB6478A4" Sender: jan.kiszka@web.de Subject: [Qemu-devel] KVM brokenness due to IO thread changes List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig4B0C0969D3CFFF46DB6478A4 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi, this is a heads-up, maybe someone has some time to look into this over the day: I seems like the IO thread changes caused a few regressions to the KVM mode. When I keep this feature disabled, I see strange hick-ups of the event delivery mechanism, and the guest stops once in a while for a second or so. Attaching strace makes the whole process terminate early (looks like it triggers a race in the signal handling). And when I enable the IO thread, I immediately get a deadlock on qemu_global_mutex. Moreover: CC i386-softmmu/vl.o /data/qemu/vl.c:4380: warning: =E2=80=98qemu_calculate_timeout=E2=80=99 d= efined but not used Jan --------------enig4B0C0969D3CFFF46DB6478A4 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkn2stQACgkQniDOoMHTA+kUCwCffAAKdR9TinY/9fqYf3HVHTWc b2IAnigujJVyk5q6Bw0FpXjxcu94wcjm =1Kv1 -----END PGP SIGNATURE----- --------------enig4B0C0969D3CFFF46DB6478A4--