From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 43501] all 32bit binaries produce "Illegal Instruction" after KVM migration from AMD -> Intel host Date: Sun, 17 Jun 2012 10:05:40 +0000 (UTC) Message-ID: <20120617100540.CE4E511FB23@bugzilla.kernel.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" To: kvm@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.19.201]:45184 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754615Ab2FQKFr (ORCPT ); Sun, 17 Jun 2012 06:05:47 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A67A320309 for ; Sun, 17 Jun 2012 10:05:46 +0000 (UTC) Received: from bugzilla.kernel.org (unknown [198.145.19.217]) by mail.kernel.org (Postfix) with ESMTP id DC15F20308 for ; Sun, 17 Jun 2012 10:05:45 +0000 (UTC) In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=43501 --- Comment #2 from Avi Kivity 2012-06-17 10:05:40 --- Try the following command line (on both hosts) qemu -cpu phenom,vendor=AuthenticAMD Note that 32-on-64 applications will suffer a performance penalty when using cross-vendor migrations. You can mitigate this by using vdso32=0 on the guest kernel command line (but this is slower than the default, when not doing cross-vendor migration). -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug.