From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@bugzilla.kernel.org Subject: [Bug 82211] New: [Nested xen on kvm] L1 guest panic and reboot when L1 guest boot up. Date: Tue, 12 Aug 2014 07:35:45 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.19.201]:58839 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751798AbaHLHfs (ORCPT ); Tue, 12 Aug 2014 03:35:48 -0400 Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8AECC2015E for ; Tue, 12 Aug 2014 07:35:47 +0000 (UTC) Received: from bugzilla1.web.kernel.org (bugzilla1.web.kernel.org [172.20.200.51]) by mail.kernel.org (Postfix) with ESMTP id EE3FB20125 for ; Tue, 12 Aug 2014 07:35:45 +0000 (UTC) Sender: kvm-owner@vger.kernel.org List-ID: https://bugzilla.kernel.org/show_bug.cgi?id=82211 Bug ID: 82211 Summary: [Nested xen on kvm] L1 guest panic and reboot when L1 guest boot up. Product: Virtualization Version: unspecified Kernel Version: 3.16.0 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@kernel-bugs.osdl.org Reporter: chao.zhou@intel.com Regression: No Environment: ------------ Host OS (ia32/ia32e/IA64):ia32e Guest OS (ia32/ia32e/IA64):ia32e Guest OS Type (Linux/Windows):Linux kvm.git Commit:c77dcacb397519b6ade8f08201a4a90a7f4f751e qemu.git Commit:2d591ce2aeebf9620ff527c7946844a3122afeec Host Kernel Version:3.16.0 Hardware:Romley_EP, Haswell_EP, Ivytown_EP Bug detailed description: -------------------------- L1(xen on kvm) guest panic then reboot continuously when boot up L1 guest. note: this is a kernel bug: kvm.git + qemu.git = result c77dcacb + 2d591ce2 = bad 9f6226a7 + 2d591ce2 = good Reproduce steps: ---------------- 1. create guest qemu-system-x86_64 -enable-kvm -m 4G -smp 2 -net nic,macaddr=00:13:13:51:51:15 -net tap,script=/etc/kvm/qemu-ifup nested-xen.qcow -cpu host Current result: ---------------- L1 guest panic then reboot continuously Expected result: ---------------- L1 guest boot up correctly Basic root-causing log: -- You are receiving this mail because: You are watching the assignee of the bug.