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 9A406C2BA16 for ; Sat, 4 Apr 2020 13:02:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B382206E9 for ; Sat, 4 Apr 2020 13:02:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726371AbgDDNCy convert rfc822-to-8bit (ORCPT ); Sat, 4 Apr 2020 09:02:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:58642 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726258AbgDDNCy (ORCPT ); Sat, 4 Apr 2020 09:02:54 -0400 From: bugzilla-daemon@bugzilla.kernel.org To: kvm@vger.kernel.org Subject: [Bug 206579] KVM with passthrough generates "BUG: kernel NULL pointer dereference" and crashes Date: Sat, 04 Apr 2020 13:02:53 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed 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: normal X-Bugzilla-Who: anthonysanwo@googlemail.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: Message-ID: In-Reply-To: References: 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=206579 --- Comment #50 from Anthony (anthonysanwo@googlemail.com) --- On Windows - 0.61% [kvm_amd] [k] svm_deliver_avic_intr 0.05% [kvm_amd] [k] avic_vcpu_put.part.0 0.02% [kvm_amd] [k] avic_vcpu_load 0.14% [kvm] [k] kvm_emulate_wrmsr Looking around that should that IOMMU was working in Linux as intended when combined with looking at proc/interrupts and seeing interrupts when being handled by AMD-Vi and not IRQ counters for the PCI devices I passed through. I was working is there a difference in how Windows/Hyper-V handles IOMMU AVIC or am I missing something that could be disabling it being activate? Sorry for the double comment i mistakenly submitted my first comment midway typing my full reply. -- You are receiving this mail because: You are watching the assignee of the bug.