From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from cae.in-ulm.de (cae.in-ulm.de [217.10.14.231]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EA8243CF74 for ; Mon, 22 Jan 2024 13:45:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.10.14.231 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705931107; cv=none; b=Shr4xKlw9wmEo+g3SdZ6lw/MUmyEnSDcVrsBmkLp3RbGYarKstSKZ870r0yWSb3/875JooTJDAKlEwllFBVTLEAfggOHZZEZz8eXUCMdwteDEhU8qtKDGVhV2gT9W5Pv88pS2Xyv5N9s2NNAbOA8zaqKiTCYcsupdPy246rXn7M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705931107; c=relaxed/simple; bh=rlj/uOhX+2J2TcdtyX2fpOBJZMek3HcpcJSp2zX5UAU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lkeDFdBsxWjJmpMY/Azcl5fu8b+ekDd6VwfLI7CA+dTngTmVKJmJ8pDetKzdfHGOI6POhXI1/Qr+fukADGByX30xFstaoDzAeT5duc9bzUuG1tXHH7wf2ISjRi0QLuaUm1Z8LyJdbpcBLqS01f9+PbUgs3yuXL4zqAx4hl/s7gU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=c--e.de; spf=pass smtp.mailfrom=c--e.de; arc=none smtp.client-ip=217.10.14.231 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=c--e.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=c--e.de Received: by cae.in-ulm.de (Postfix, from userid 1000) id 21E1614033C; Mon, 22 Jan 2024 14:45:05 +0100 (CET) Date: Mon, 22 Jan 2024 14:45:05 +0100 From: "Christian A. Ehrhardt" To: Baolu Lu Cc: Paul Menzel , =?iso-8859-1?Q?J=F6rg_R=F6del?= , Will Deacon , iommu@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: Dell XPS 13 9360: DMAR errors `DRHD: handling fault status reg 2` and `[INTR-REMAP] Request device [f0:1f.0] fault index 0x0` Message-ID: References: <9a24c335-8ec5-48c9-9bdd-b0dac5ecbca8@molgen.mpg.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Hi, On Mon, Jan 22, 2024 at 08:53:43PM +0800, Baolu Lu wrote: > On 2024/1/19 20:59, Paul Menzel wrote: > > Dear Linux folks, > > > > > > On a Dell XPS 13 9360 Linux 6.6.8, 6.6.11 and 6.7 (and earlier versions) > > log the lines below when resuming from ACPI S3 (deep): > > > >     [    0.000000] Linux version 6.7-amd64 > > (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-13 (Debian > > 13.2.0-9) 13.2.0, GNU ld (GNU Binutils for Debian) 2.41.50.20231227) #1 > > SMP PREEMPT_DYNAMIC Debian 6.7-1~exp1 (2024-01-08) > >     [    0.000000] Command line: BOOT_IMAGE=/vmlinuz-6.7-amd64 > > root=UUID=32e29882-d94d-4a92-9ee4-4d03002bfa29 ro quiet pci=noaer > > mem_sleep_default=deep log_buf_len=8M > >     […] > >     [    0.000000] DMI: Dell Inc. XPS 13 9360/0596KF, BIOS 2.21.0 > > 06/02/2022 > >     […] > >     [   99.711230] PM: suspend entry (deep) > >     […] > >     [   99.722101] printk: Suspending console(s) (use > > no_console_suspend to debug) > >     [  100.285178] ACPI: EC: interrupt blocked > >     [  100.319908] ACPI: PM: Preparing to enter system sleep state S3 > >     [  100.331793] ACPI: EC: event blocked > >     [  100.331798] ACPI: EC: EC stopped > >     [  100.331800] ACPI: PM: Saving platform NVS memory > >     [  100.335224] Disabling non-boot CPUs ... > >     [  100.337412] smpboot: CPU 1 is now offline > >     [  100.341065] smpboot: CPU 2 is now offline > >     [  100.346441] smpboot: CPU 3 is now offline > >     [  100.353086] ACPI: PM: Low-level resume complete > >     [  100.353129] ACPI: EC: EC started > >     [  100.353129] ACPI: PM: Restoring platform NVS memory > >     [  100.355219] Enabling non-boot CPUs ... > >     [  100.355244] smpboot: Booting Node 0 Processor 1 APIC 0x2 > >     [  100.355954] CPU1 is up > >     [  100.355972] smpboot: Booting Node 0 Processor 2 APIC 0x1 > >     [  100.356698] CPU2 is up > >     [  100.356716] smpboot: Booting Node 0 Processor 3 APIC 0x3 > >     [  100.357371] CPU3 is up > >     [  100.360217] ACPI: PM: Waking up from system sleep state S3 > >     [  100.668380] ACPI: EC: interrupt unblocked > >     [  100.668598] pcieport 0000:00:1c.0: Intel SPT PCH root port ACS > > workaround enabled > >     [  100.668606] pcieport 0000:00:1c.4: Intel SPT PCH root port ACS > > workaround enabled > >     [  100.668643] pcieport 0000:00:1d.0: Intel SPT PCH root port ACS > > workaround enabled > >     [  100.690996] DMAR: DRHD: handling fault status reg 2 > >     [  100.691001] DMAR: [INTR-REMAP] Request device [f0:1f.0] fault > > index 0x0 [fault reason 0x25] Blocked a compatibility format interrupt > > request > > > > But I am unable to find the device f0:1f.0: > > > >     $ lspci -nn > >     00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th > > Gen Core Processor Host Bridge/DRAM Registers [8086:5904] (rev 02) > >     00:02.0 VGA compatible controller [0300]: Intel Corporation HD > > Graphics 620 [8086:5916] (rev 02) > >     00:04.0 Signal processing controller [1180]: Intel Corporation Xeon > > E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem > > [8086:1903] (rev 02) > >     00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP > > USB 3.0 xHCI Controller [8086:9d2f] (rev 21) > >     00:14.2 Signal processing controller [1180]: Intel Corporation > > Sunrise Point-LP Thermal subsystem [8086:9d31] (rev 21) > >     00:15.0 Signal processing controller [1180]: Intel Corporation > > Sunrise Point-LP Serial IO I2C Controller #0 [8086:9d60] (rev 21) > >     00:15.1 Signal processing controller [1180]: Intel Corporation > > Sunrise Point-LP Serial IO I2C Controller #1 [8086:9d61] (rev 21) > >     00:16.0 Communication controller [0780]: Intel Corporation Sunrise > > Point-LP CSME HECI #1 [8086:9d3a] (rev 21) > >     00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI > > Express Root Port #1 [8086:9d10] (rev f1) > >     00:1c.4 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI > > Express Root Port #5 [8086:9d14] (rev f1) > >     00:1d.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI > > Express Root Port #9 [8086:9d18] (rev f1) > >     00:1f.0 ISA bridge [0601]: Intel Corporation Sunrise Point-LP LPC > > Controller [8086:9d58] (rev 21) > >     00:1f.2 Memory controller [0580]: Intel Corporation Sunrise > > Point-LP PMC [8086:9d21] (rev 21) > >     00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD > > Audio [8086:9d71] (rev 21) > >     00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus > > [8086:9d23] (rev 21) > >     01:00.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 > > Bridge [Alpine Ridge 2C 2015] [8086:1576] > >     02:00.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 > > Bridge [Alpine Ridge 2C 2015] [8086:1576] > >     02:01.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 > > Bridge [Alpine Ridge 2C 2015] [8086:1576] > >     02:02.0 PCI bridge [0604]: Intel Corporation DSL6340 Thunderbolt 3 > > Bridge [Alpine Ridge 2C 2015] [8086:1576] > >     39:00.0 USB controller [0c03]: Intel Corporation DSL6340 USB 3.1 > > Controller [Alpine Ridge] [8086:15b5] > >     3a:00.0 Network controller [0280]: Qualcomm Atheros QCA6174 > > 802.11ac Wireless Network Adapter [168c:003e] (rev 32) > >     3b:00.0 Non-Volatile memory controller [0108]: SK hynix PC300 NVMe > > Solid State Drive 512GB [1c5c:1284] > > > > As this is logged as an error, can this be fixed somehow? > > This appears to be a platform problem. The hidden device (f0:1f.0) is > not visible to the OS, so no driver can program the interrupt remapping > table for the device's interrupts. The hidden device has been identified as the IO-APIC. It is visible and properly declared to use 0f:1f.0 in the DMAR table. regards Christian