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 8B3FC2AF10 for ; Fri, 21 Feb 2025 02:00:38 +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=1740103238; cv=none; b=rwjkKNZUTsC5x5EiLyDJmNHVK5Dd62b0/wqXYnurEjTvZWFUwhtVjaUZu2fAlS2zo2nHTy466P344OZaR4JNZmttynYoj+K8DGjJUlhJNjOlffquF75OCrckMh9XhbDr8y7LyNTpHJcDU7Vd2dlfCm+mg3x/bY8AwyXG8/TEjR8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740103238; c=relaxed/simple; bh=ErHMBYL9tFv2x3jaYCPsDte7VpnywTygAWkF7qCjud0=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=eDET8NbbI/jG87C3bcNbRogNZQFaWm3xqWVMH5G55KHSEHwU89/+NZBB+lmX4F4gAtTGBKYb1cbEQWB1/IIOtE1EPx8cFmdvWpIcA6gUbCbbWhG+BkovdEml9PPLsvAIXW+XM6pcx3lHEV8JlK3k93Xe4whzVqJzXGy6QKKlgzs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mNmxHqFR; 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="mNmxHqFR" Received: by smtp.kernel.org (Postfix) with ESMTPS id DD40BC4CED1 for ; Fri, 21 Feb 2025 02:00:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740103237; bh=ErHMBYL9tFv2x3jaYCPsDte7VpnywTygAWkF7qCjud0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=mNmxHqFRn5xilkwggJ/rMi98EMJO93O+fr1eTUDSzAFjjCz8MpW8apC9iT6JWGREC F/sgj31EWd4XF0MgzKw3AhyhXyo1cfkIQcpMUS/n0L2wnEFdYqQLTI83l2z7FVTiEx jCOB9QWaJ8O79uM2eAnhS+NToJQ4cnQWb656k6har6byOADRIDOUBiPSxJIwz1cwb1 9iFAXfcEPTs2++0y1x2GjyJXHOUrYQGK4sAikq0wo227yws5OolRP213GctMuWyxyh LkJNqQlotGXkRDg85YDDoL5+QphtP+s2GeVzz5ECiNgkwCndJZBvxywPC4i0+ZiOWw GjIz70BDRVndw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id D4D90C41614; Fri, 21 Feb 2025 02:00:37 +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: Fri, 21 Feb 2025 02:00:37 +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: chaefeli@angband.ch X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: CODE_FIX 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 Christian Haefeli (chaefeli@angband.ch) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |chaefeli@angband.ch --- Comment #45 from Christian Haefeli (chaefeli@angband.ch) --- (In reply to Mario Limonciello (AMD) from comment #38) > Thanks everyone for your feedback and testing. >=20 > The following change will go into 6.12 and back to the stable kernels to = fix > this issue. It is essentially doing the same effect that kvm_amd.vls=3D0= did. >=20 > https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=3Dx= 86/ > urgent&id=3Da5ca1dc46a6b610dd4627d8b633d6c84f9724ef0 Hello I would prefer the more flexible solution via kvm_amd module parameter. I am not having this issue with an Epyc 4244p but am now losing performance due to this hard coded workaround. Does my CPU also qualify as a 'Zen4 Clie= nt SoC?=20 Regards Christian --=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.=