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 E1762C43603 for ; Sun, 8 Dec 2019 15:27:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 988E5206D5 for ; Sun, 8 Dec 2019 15:27:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726440AbfLHP1L convert rfc822-to-8bit (ORCPT ); Sun, 8 Dec 2019 10:27:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:49128 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726406AbfLHP1L (ORCPT ); Sun, 8 Dec 2019 10:27:11 -0500 From: bugzilla-daemon@bugzilla.kernel.org To: kvm@vger.kernel.org Subject: [Bug 205801] New: ignore_msrs =Y and report_ignored_msrs = N not working Date: Sun, 08 Dec 2019 15:27:10 +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: low X-Bugzilla-Who: harliff@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 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=205801 Bug ID: 205801 Summary: ignore_msrs =Y and report_ignored_msrs = N not working Product: Virtualization Version: unspecified Kernel Version: 5.0.15-1-pve (from proxmox) Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: low Priority: P1 Component: kvm Assignee: virtualization_kvm@kernel-bugs.osdl.org Reporter: harliff@gmail.com Regression: No There is a VM (windows 2016) which constantly generating more than 10 messages every second like this: ``` kvm [35691]: vcpu1, guest rIP: 0xfffff800c9fedbb3 kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x1, nop ``` I can't prevent the VM from generating these MSRs due to proprietary software running inside it (maybe its due to some kind of software protection, but I'm not sure). So I wish to be able to disable this messages on KVM level or filter messages from getting to the kernel ring buffer (shown by dmesg). I've tried to set kvm module parameters -- without success: - echo Y > /sys/module/kvm/parameters/ignore_msrs - echo N > /sys/module/kvm/parameters/report_ignored_msrs Is it due to a bug or I'm misunderstanding whats these parameters should do? May you suggest me a workaround (to prevent these messages from getting shown on console/via dmesg/via journalctl -k)? -- You are receiving this mail because: You are watching the assignee of the bug.