From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26AFAC7618F for ; Wed, 17 Jul 2019 14:27:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E13EC21743 for ; Wed, 17 Jul 2019 14:27:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726620AbfGQO1F convert rfc822-to-8bit (ORCPT ); Wed, 17 Jul 2019 10:27:05 -0400 Received: from mail.wl.linuxfoundation.org ([198.145.29.98]:60792 "EHLO mail.wl.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726081AbfGQO1E (ORCPT ); Wed, 17 Jul 2019 10:27:04 -0400 Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DBDE328419 for ; Wed, 17 Jul 2019 14:27:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DA32328745; Wed, 17 Jul 2019 14:27:03 +0000 (UTC) From: bugzilla-daemon@bugzilla.kernel.org To: kvm@vger.kernel.org Subject: [Bug 204209] New: kernel 5.2.1: "floating point exception" in qemu with kvm enabled Date: Wed, 17 Jul 2019 14:27:01 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Product: Virtualization X-Bugzilla-Component: kvm X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: high X-Bugzilla-Who: antdev66@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=204209 Bug ID: 204209 Summary: kernel 5.2.1: "floating point exception" in qemu with kvm enabled Product: Virtualization Version: unspecified Kernel Version: 5.2.1 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: kvm Assignee: virtualization_kvm@kernel-bugs.osdl.org Reporter: antdev66@gmail.com Regression: No After updating the kernel from 5.1.17 to 5.2.1, when I use the g++ compiler in qemu with kvm enabled, often the compiler launched in the guest for compile my sources ends with this error: "exception in floating point". Moreever it is not possible to update the bsd system because the process (that use g++ compiler) exits with the same error. Same thing for some system utilities, like "pkg update". But if I boot the system with the previous 5.1.17 kernel and launch qemu, as indicated above, everything works fine and I don't detect errors. Command line is: /usr/bin/qemu-system-x86_64 -k it -machine accel=kvm -m 4096 -no-fd-bootchk -show-cursor -drive file="vmdragon.img",if=ide,media=disk -boot once=c,menu=off -net none -rtc base=localtime -name "vmdragon" -smp 8 -vga std -device qemu-xhci,id=xhci I can't test without kvm because the process is very slow, but I think the problem could be in some changes made to the kvm module. Thanks, Antonio -- You are receiving this mail because: You are watching the assignee of the bug.