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 7FDEC24BD14; Mon, 10 Feb 2025 17:07:17 +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=1739207237; cv=none; b=QWTL6TMKIzC1yoxZVc7Mrc8uE8+7FQ5kNPkGhMsoxsZxCuGD2asudsMiMWgKL7a8PZNQFKXTKxSPZRitIinerYKOddNl8VtZbdyheSTHBxm6eShcntWVwA7hG3aIc/Go8KZnWwaPxWp0rgJIpCkNIK1kxPIUj6eZkMggG/Kz0JM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739207237; c=relaxed/simple; bh=DxTJ/BZQwxqMrlHz+wi5HBb7dswEUmrT+uzB0yIckIQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=QaknRyV2/Kg1ndM6mMf8EPnUU8T87yfslTJqE9IMxbZwlAZj1pShXSpMnhe9cms2RH4iaAMDIFo2wPkSv7flJ1BPXWeUh5Nz1+FEGZKgkPBHIk5hgZCGwGBNs9hxY4d4A6hlK6HqPsEqap30cyk+Sj3sAp7pZ13GtZ8CH5bVX1Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qlAUBWmj; 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="qlAUBWmj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B18E3C4CEE9; Mon, 10 Feb 2025 17:07:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739207236; bh=DxTJ/BZQwxqMrlHz+wi5HBb7dswEUmrT+uzB0yIckIQ=; h=Date:From:To:Cc:Subject:From; b=qlAUBWmjPdEXngb9Ey5BNmIYhfSukGsI243GoTOB3yt6Sk6VKcT/DOliRZ0SXJ5qS 6zHKEb85yTfawt53u8sBF5AdjEcVr1dGHGNf8uZegtpDC5ypVaD9eYGA1KbK5l74gY hrIExWSmoTLJgaw7ACtzP+H7X8E1rKt8OdHW10iXXb76Wck7Q0ZhCPr/QPJSL7qdCB 2uIJRCWWFkXihSv3eh0gBI8E9QYnDZz6wQ3GkzwcWdGvCDJhl5i2oFsh/EZ6Yo8NWM FSpHTLU7GhuKu6no1DpoXZCkShqvTl+4Q4Dxti8il5gfNKokWm1Y9Qf7v08cd+XIPd AcKaKZoQLxw2A== Date: Mon, 10 Feb 2025 11:07:15 -0600 From: Bjorn Helgaas To: linux-pci@vger.kernel.org Cc: Alex Williamson , linux-pm@vger.kernel.org, regressions@leemhuis.info Subject: [bugzilla-daemon@kernel.org: [Bug 219765] New: Regression: VFIO NVIDIA GPU Passthrough Fails in Linux 6.13.0 (GPU Reset & Audio Controller Disappears)] Message-ID: <20250210170715.GA8877@bhelgaas> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline #regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=219765 I don't see an obvious culprit between v6.12 and v6.13, suggested bisection if possible. Workaround: boot with pcie_port_pm=off Given the workaround, maybe it's worth trying a revert of this: dc421bb3c0db ("PCI: Enable runtime PM of the host bridge") ----- Forwarded message from bugzilla-daemon@kernel.org ----- https://bugzilla.kernel.org/show_bug.cgi?id=219765 Created attachment 307599 --> https://bugzilla.kernel.org/attachment.cgi?id=307599&action=edit dmesg logs for the kernel in which gpu passthrough works After upgrading from Linux 6.12.10 to Linux 6.13.0, VFIO GPU passthrough fails for an NVIDIA GPU (AD107). The GPU is not passed through to the VM, and its audio device (01:00.1) disappears from Virt-Manager. This issue does not occur in Linux 6.12.10. I have attached the logs.