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 0C36717C231 for ; Sat, 31 Aug 2024 11:51:54 +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=1725105115; cv=none; b=AZUhwHPM6v+xCRmnh9OaUw6l6AA7lNIWbPps+EQWOvTRe90tW4StfNns4DOkobrZsLz13tgWAO+oduX+cCHwJUVtQQx0quOr1LbRz8Oi4Ai/oDoXrSjZRwmwo5+hXFnA4JkkpgyvxgUbwY0+iyjMKWWmdw0Y30vIOBLk/g+Xu3I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725105115; c=relaxed/simple; bh=gpM1CtmWuNMOXSGXVGwSiz+lR+l2EveFSpViRe4OSMc=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=ZfHkfx0C22UvBieRdSc/9KZHctnQI1Y9V9ZYXAsF89hjlueu0JPc+KEGGBPB6U0S09fn/VY64XTwoP4+ChN6cuIZvvloCAmknaThvo79DNqbWSG0IOoTF/AVE/buin1qs8rkjOtgA9V8pSlnbnl2bKFuEcv/tQFNbg7gHyy1lrA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=exZat5YY; 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="exZat5YY" Received: by smtp.kernel.org (Postfix) with ESMTPS id 80CB8C4CECC for ; Sat, 31 Aug 2024 11:51:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725105114; bh=gpM1CtmWuNMOXSGXVGwSiz+lR+l2EveFSpViRe4OSMc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=exZat5YYGUdi8F9EH2lg0hS5UEmgXbjbkooxKYuJcIUkCIHHIaYxszsDqn9LrJJmT WffzwMVmwyvWCmgY2G5UYljW0UbnRB0aIw4oM79uQXTrMdlglKgEhckoPFS6M1+FZ4 2/Og5V8V8GI1uy1CUInH9pPO9KkWcQ7debAsroATlm3Cjt8kktYEyth4jPDkEr46P+ IPSqwxbOm2O45dmfbjtng/CnOluj6a1XQaRNCnlgv75Hg6gtTC7Ygo0/vonCOGQaeN GSLq/rD27a8COlx7cj000ho5gOCv/bK6BUlRAt4X5gxJWXEqMuL9SooxfnVh/dPUd1 t4112V/9U6TFw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 779C2C53BB9; Sat, 31 Aug 2024 11:51:54 +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: Sat, 31 Aug 2024 11:51:54 +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: michal.litwinczuk@op.pl 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: 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 --- Comment #14 from h4ck3r (michal.litwinczuk@op.pl) --- (In reply to blake from comment #13) > I recently experienced this. I built a proxmox cluster with 7950x. Every > node that I tested on would hard reset with no logs when a VM was doing > nested virtualization. >=20 > Our CI testing uses VMs, and putting the CI in a VM itself makes it pretty > easy to reproduce, just takes some time. >=20 > Setting kvm_amd.vls=3D0 seems to have resolved the issue, we had zero node > resets today and I was trying to force them. >=20 > Kernel is Proxmox's 6.8.12-1-pve. >=20 > Thanks, > Blake Disabling vls does help with crashes, but has too much performance penalty. In my case it would lock gpu utilization at 40% max. (proxmox win10/11 hype= rv enabled) --=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.=