From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (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 BCB7C7E9 for ; Mon, 19 Sep 2022 00:59:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1663549183; x=1695085183; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=fACtfGgyyAf2W0XH08j7nQmIqsGTZANL3supT352vWo=; b=CLMU469OP7tV7bboLkibvLknWQ5Wg30cr61GpzrhkmYRrZ46O4tTmfPK aAEaI4HIFrQrxoeX5HR3oRDbvUdgeF5jOinvl3xvVg3LHq/O1nLprPFx/ n1a1JdzpBf9XsVDJc7whEgq0ZrnmGFvdNB7L2kN5dsGIMHUYfG22dyAcD nsto3JOdnPFLXJRRE9thYbpUn8HWzc6rIy85C0z2eJ9xetx2aShTSpF6a OVSNPEB/Z3RTjYAn4Ai3LrV+OazRt30q1spWsFRLiszpw6bMs0lOJLLB1 T4g3D0+c+kfDMzXVDaYKLDvwPMypaJEdm0bFkWL+7C0VH9I09KDsPD0+M w==; X-IronPort-AV: E=McAfee;i="6500,9779,10474"; a="385569900" X-IronPort-AV: E=Sophos;i="5.93,325,1654585200"; d="scan'208";a="385569900" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2022 17:59:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,325,1654585200"; d="scan'208";a="760673154" Received: from allen-box.sh.intel.com (HELO [10.239.159.48]) ([10.239.159.48]) by fmsmga001.fm.intel.com with ESMTP; 18 Sep 2022 17:59:41 -0700 Message-ID: <4379585e-42e4-53d9-8ca4-bf5b8ff3c95d@linux.intel.com> Date: Mon, 19 Sep 2022 08:53:48 +0800 Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Cc: baolu.lu@linux.intel.com, "iommu@lists.linux.dev" , "linux1394-devel@lists.sourceforge.net" , Stefan Richter Subject: Re: 5.19.9 regression: DMAR error on i7-8650U Content-Language: en-US To: George Hilliard , Joerg Roedel , Will Deacon , Mika Westerberg References: <485A6EA5-6D58-42EA-B298-8571E97422DE@getmailspring.com> From: Baolu Lu In-Reply-To: <485A6EA5-6D58-42EA-B298-8571E97422DE@getmailspring.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 9/18/22 8:00 AM, George Hilliard wrote: > I'm experiencing a regression on 5.19.9 from 5.19.8. Not sure if you are > already aware of this, apologies if it's noise. My hunch is that this > is an iommu problem since there were quite a few iommu changes in .9, > but I have also Cc'd Firewire maintainers on the chance that I'm wrong. > > My Apple Thunderbolt to Firewire adapter has quit working on 5.19.9 on > my Thinkpad T480s (i7-8650U), with the following log message while > enumerating the device (reformatted for email): > > [ 318.263546] thunderbolt 0-1: new device found, vendor=0x1 device=0x8004 > [ 318.263559] thunderbolt 0-1: Apple, Inc. Thunderbolt to FireWire Adapter > [ 318.342416] pcieport 0000:05:01.0: pciehp: Slot(1): Card present > [ 318.342428] pcieport 0000:05:01.0: pciehp: Slot(1): Link Up > (snip) > [ 318.503177] pcieport 0000:08:00.0: enabling device (0000 -> 0003) > [ 318.504976] firewire_ohci 0000:09:00.0: enabling device (0000 -> 0002) > [ 318.562000] firewire_ohci 0000:09:00.0: added OHCI v1.10 device > as card 4, 8 IR + 8 IT contexts, quirks 0x0, physUB > [ 318.562109] DMAR: DRHD: handling fault status reg 2 > [ 318.562114] DMAR: [INTR-REMAP] Request device [09:00.0] fault > index 0x8080 [fault reason 0x25] Blocked a > compatibility format interrupt request > > The last two lines are the new error. > > Happy to provide more details or experiment; this happens nearly every time. > > George > + Mika. Best regards, baolu