From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4A187CF16 for ; Thu, 24 Oct 2024 14:37:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729780637; cv=none; b=U5yJDEgYoxIJNp3SdWJcAjsPbogtbC//dHDGuSNO2tHHv8wwV9p+JoKywm/jq5lBLZmSpCsjjbvIZizGJReuOsJEDRntlJFGym8Bj50/xDDJnS//xjk3YJsoY3e8yj+M5uwn3Nb1bLXJvKkEdhwe7Wgtt0XwZZsGy7VLgmmaINo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729780637; c=relaxed/simple; bh=duM5Xxjm34RD179FN71Hc+NHsR80maFEE2SZPxJ5/DY=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=lGFRMeH8i3L69NTlmY1t2XODf09vxEi+XEI+NECPTGb3Rss+5XHORXTDEbMy2c45SpeCjgVtK1XtGAoCc4AcCiga0/V/bAZ2QZ+M4fI4X3BuqWz0dbRXqZvrGI1hB24SdNTuQkM7QoCiS7zBE3KkD5WZomEJZ6fmY5nxNWekGME= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H2dPbgE5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="H2dPbgE5" Received: by smtp.kernel.org (Postfix) with ESMTPS id 4AD5FC4CEE9 for ; Thu, 24 Oct 2024 14:37:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729780637; bh=duM5Xxjm34RD179FN71Hc+NHsR80maFEE2SZPxJ5/DY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=H2dPbgE5avOEiy+GbVRC4A17972s/OUBElpPmO6/Liie9UIa5fReJKErIGUsXVYCA +UCC+Bp2VoKI7CwDUtQp3dujmz1fMUtlvgGQ/tqybLdtt3u7S8vLtirLr63KX9aDP3 WsJljXGB9gthc1zM5Ac/5VJTG2Hgi1KjPHGw61yj35UAmOjkQWVWzOVCZrmUlSeyLa 3az9fo/rSL9Si2+673J38T1aUjO+jQ/yWLW1WR3es4IxxQXcWIko/sf+kuvYmU7hPk /thHSS8XE4uj4nFlFLWVr0WF8hBD4E3Zg8srjsRYXkwwVgtr0FY+cHpeLO6AYZe4d/ w8Whgg0r4yawQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 455A7C53BC5; Thu, 24 Oct 2024 14:37:17 +0000 (UTC) From: bugzilla-daemon@kernel.org To: kvm@vger.kernel.org Subject: [Bug 219009] Random host reboots on Ryzen 7000/8000 using nested VMs (vls suspected) Date: Thu, 24 Oct 2024 14:37:16 +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: high X-Bugzilla-Who: simon@wegel.ca X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D219009 Simon Labrecque (simon@wegel.ca) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |simon@wegel.ca --- Comment #37 from Simon Labrecque (simon@wegel.ca) --- Wow, this bug sent me to a weird path :P I've been using a Windows VM for t= he past 6 months, daily, without problem. Then suddently 2 days ago (didn't up= date the kernel or anything else), my PC started randomly rebooting when under l= oad. Reading on problems with AMD cpus (and specifically 7950x), I bought a PSU = and swapped it. Same problem. Then the cpu (for a 7600), then the motherboard, = then the memory... same. I could 100% reproduce the problem by putting the VM un= der load within 3 minutes. AFAIK, there was no MCE logged. I finally stumbled on this thread, set kvm_amd.vls=3D0, and that indeed ful= ly fixed the problem. I don't know how or why hyper-v was suddently enabled in my Windows VM, but that's obviously what happened. When it did, it triggered this bug quite violently. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=