From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.9]) (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 068B51F5FF for ; Thu, 3 Oct 2024 05:47:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727934429; cv=none; b=mGF0lpYHJnrlNAs0I8cuJklDoP1Glrydx1xRLCX35KSgLbi/IWEIKzB7YyDZX6H0qunhwhbToOFPEq8j4BRmk/EhP7mrOeSp+B2cyynCEPPl6rSfNyR/a6AbZvo2gN+mXoLFczY5MV6BrxkjmAlKD5519UT/GpXD77NiN6sqbfc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727934429; c=relaxed/simple; bh=1U4maC12kMzIFQqFpHkuvcqqRovo+/2oME69fl3a/ak=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=B42vYW/CErZA9tAtbWmnl7piC/4eA1uz6aBh+J6NlHk1RNcp50pqGXDO2gedsQo8Pke73VAs/+PX27WSHVHt8i668QmAMvDDXuAfcaPeollNJ5fJ68kVrMCrrZUFep6FiLtz/lcHKsqn4yH5UhK8j4LQyEcUjeYNidxcUUP0hNw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=eP1810i6; arc=none smtp.client-ip=198.175.65.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="eP1810i6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1727934428; x=1759470428; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=1U4maC12kMzIFQqFpHkuvcqqRovo+/2oME69fl3a/ak=; b=eP1810i6hgQhfEwn9aucptWbdAT1A29KUGizAuEnzrSWBtdarf0YGhlJ y5vpBPPbw3KBnU5GKX/kX3k6lHFipSJNLBAbWbXf1bILSDqUtYU+dRUfn 2qtlc4cNr7xhvf17lmV0qD0cs8OZAuvz4oQc4qEf0qtm8TqtfygNIV/5f CVhf+ojuWwPE1jxtk7/0Hz8GWfcWAzHX9WWFn4Ooju7XZ5A6wlPqZg4QT E3Gx1c64rInllo41J1QU+KpapdQzn6b7fdX+NpffJLAlrd5q8xt2Myd2A YFw3UWWwAlV4iM80s9eT5kXZ5TmZ5jq4zzb58qpP46eANWoQ9uB7NOPbq Q==; X-CSE-ConnectionGUID: FsUl6ouuRSa0ZkVmSqNLUA== X-CSE-MsgGUID: iTTSTrZKRwKaqHpJQLs5gQ== X-IronPort-AV: E=McAfee;i="6700,10204,11213"; a="49643702" X-IronPort-AV: E=Sophos;i="6.11,173,1725346800"; d="scan'208";a="49643702" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Oct 2024 22:47:08 -0700 X-CSE-ConnectionGUID: y3yNkVjARRSFaKTS8/hSPA== X-CSE-MsgGUID: 3apkzQj2RwW7UoZWOpwuCQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,173,1725346800"; d="scan'208";a="74355760" Received: from black.fi.intel.com ([10.237.72.28]) by fmviesa008.fm.intel.com with ESMTP; 02 Oct 2024 22:47:05 -0700 Received: by black.fi.intel.com (Postfix, from userid 1001) id 6C0A7144; Thu, 03 Oct 2024 08:47:04 +0300 (EEST) Date: Thu, 3 Oct 2024 08:47:04 +0300 From: Mika Westerberg To: Harry Wentland Cc: linux-usb@vger.kernel.org, mathias.nyman@linux.intel.com, regressions@lists.linux.dev, "Limonciello, Mario" , Raju.Rangoju@amd.com, Sanath.S@amd.com, Greg KH Subject: Re: [REGRESSION] usb: acpi: add device link between tunneled USB3 device and USB4 Host Interface Message-ID: <20241003054704.GM275077@black.fi.intel.com> References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Hi Harry, On Wed, Oct 02, 2024 at 01:42:29PM -0400, Harry Wentland wrote: > I was checking out the 6.12 rc1 (through drm-next) kernel and found > my system hung at boot. No meaningful message showed on the kernel > boot screen. > > A bisect revealed the culprit to be > > commit f1bfb4a6fed64de1771b43a76631942279851744 (HEAD) > Author: Mathias Nyman > Date: Fri Aug 30 18:26:29 2024 +0300 > > usb: acpi: add device link between tunneled USB3 device and USB4 Host Interface > > A revert of this single patch "fixes" the issue and I can boot again. > > The system in question is a Thinkpad T14 with a Ryzen 7 PRO 6850U CPU. > It's running Arch Linux but I doubt that's of consequence. > > lspci output: > https://gist.github.com/hwentland/59aef63d9b742b7b64d2604aae9792e0 > acpidump: > https://gist.github.com/hwentland/4824afc8d712c3d600be5c291f7f1089 > > Mario suggested I try modprobe.blacklist=xhci-hcd but that did nothing. > Another suggestion to do usbcore.nousb lets me boot to the desktop > on a kernel with the faulty patch, without USB functionality, obviously. > > I'd be happy to try any patches, provide more data, or run experiments. Do you boot with any device connected? Second thing that I noticed, though I'm not familiar with AMD hardware, but from your lspci dump, I do not see the PCIe ports that are being used to tunnel PCIe. Does this system have PCIe tunneling disabled somehow? You don't see anything on the console? It's all blank or it just hangs after some messages? Can you also provide full dmesg with that commit reverted with "thunderbolt.dyndbg=+p" in the kernel command line?