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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,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 93746C433DF for ; Tue, 11 Aug 2020 22:31:40 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5D4482076C for ; Tue, 11 Aug 2020 22:31:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D4482076C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56850 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k5cnz-00083k-M4 for qemu-devel@archiver.kernel.org; Tue, 11 Aug 2020 18:31:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37482) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k5cn8-0007c3-SG for qemu-devel@nongnu.org; Tue, 11 Aug 2020 18:30:46 -0400 Received: from indium.canonical.com ([91.189.90.7]:49308) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k5cn6-0002Ml-Bw for qemu-devel@nongnu.org; Tue, 11 Aug 2020 18:30:46 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1k5cn4-0003le-8n for ; Tue, 11 Aug 2020 22:30:42 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 27E742E8082 for ; Tue, 11 Aug 2020 22:30:42 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Tue, 11 Aug 2020 22:23:57 -0000 From: TheCatFelix <1884684@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: thecatfelix X-Launchpad-Bug-Reporter: TheCatFelix (thecatfelix) X-Launchpad-Bug-Modifier: TheCatFelix (thecatfelix) References: <159287262873.13509.14889128175029136647.malonedeb@wampee.canonical.com> Message-Id: <159718463763.26262.10272195649266297628.malone@gac.canonical.com> Subject: [Bug 1884684] Re: QEMU 5.0: Guest VM hangs/freeze when unplugging USB device X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="6a138c03da9cc3e2e03f6dd3bbb4a615b0be6ec2"; Instance="production-secrets-lazr.conf" X-Launchpad-Hash: caf5e71135a0bfb56e895ae2b81dee61daa5b6df Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/11 17:11:05 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -58 X-Spam_score: -5.9 X-Spam_bar: ----- X-Spam_report: (-5.9 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=1, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1884684 <1884684@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Link to bug on the proxmox side: https://bugzilla.proxmox.com/show_bug.cgi?id=3D2781 ** Bug watch added: bugzilla.proxmox.com/ #2781 https://bugzilla.proxmox.com/show_bug.cgi?id=3D2781 -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1884684 Title: QEMU 5.0: Guest VM hangs/freeze when unplugging USB device Status in QEMU: New Bug description: Setup: Host: Debian/SID, Kernel 5.6, QEMU 5.0 Guest: Windows 10 VM with PCI and USB device passthrough. Problem: Guest VM suddenly hangs when pulling USB device out from the Host. Observations: - Issue appears to be related to QEMU 5.0 - It started after an upgrade to QEMU 5.0. - Downgrading only QEMU on multiple systems fixes the issue. - Issue is very reproducible. - Most of the time within a few attempts of pulling/reconnecting the d= evice. - Issue happens with multiple devices (I did try standard HID devices,= a webcam and an x-ray sensor). - Guest just hangs. - Display output remains on last frame shown. - Ping to Guest immediately stops working. - Logs in the Guest stop logging immediately. - Host is fine and thinks the Guest is fine. = - Guest continues to show as running in "virsh list". - No suspicious entries in the QEMU logs. - No suspicious entries in Host syslogs/messages. - Host can can kill guest "virsh destroy" and respawn fine. - Issue seems widespread. - Multiple similar reports from ProxMox users after upgrade to ProxMox= 6.2 for both Windows and Linux guests (First version that uses QEMU 5.0) https://forum.proxmox.com/threads/vm-freezes-when-disconnecting-usb-keybo= ard-and-mouse.70287/ https://forum.proxmox.com/threads/usb-drive-crashes-vm.70214/ https://forum.proxmox.com/threads/latest-proxmox-usb-disconnects-freeze-k= vm.70398/ https://forum.proxmox.com/threads/vm-with-gpu-passthrough-freezes-when-tu= rning-off-monitor-after-proxmox-6-2-upgrade.69821/ https://forum.proxmox.com/threads/vm-with-gpu-passthrough-freezes-when-tu= rning-off-monitor-after-proxmox-6-2-upgrade.69824/ I'd be more than happy any debugs that might be helpful. 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