From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (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 6B2615CDCA; Fri, 23 Feb 2024 10:09:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708682994; cv=none; b=Z/51+0RSqTdCkkxWg8DORj12ro7/GFABXxyLhp82Idbw4srQjGn/0oYL/klOtq5QKJje739lmp4wWrRffQfyAmnt8jaFYX2S5CZg+pyGKzOFKgVHSSVmoLAHgUkFO3OvKSI9J1LtYM9SAqsuOe+SoI9pgkNmdPiY70LHoV1Txng= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708682994; c=relaxed/simple; bh=URfFpOQ1isznRhH/xiFa04n/cMubW1udR/5z9a93b5Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Z8igX5c+MSgWn3kxyE7fSjZolnKt9oOyLPHkKOvw/NW9y/heNpWB4hXNhLuJODZfJqNbit5pncW+7mAfYK1d2myIBay5V5tycdclZ8y88V8duYUpCTjPCyc6LMjchtDn/YnRSJmF6L2LjZ3++kzn74LLgeEQSkrckt9oOvaLryw= 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=ivsYU7TL; arc=none smtp.client-ip=192.198.163.8 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="ivsYU7TL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1708682992; x=1740218992; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=URfFpOQ1isznRhH/xiFa04n/cMubW1udR/5z9a93b5Q=; b=ivsYU7TLy9TC0jNoV1QP/ATbjwjFSBiORG+0g0yfMSaIEB9M71nj2exH jeAB360INsnhUawJ0Wi9h3VhoAdOB2wRYMDoHzSlU+wIyayOfDi/cNsL4 WhjXYEH4o7a1pAkwcWM3gGBhN/ekDgCWA0wnWJ/NbbaXVfFzHVZZKNz6h xJBJuHx4FgZz1ofPhqu8pZx9kKJOeJCDCYLjQ75cXcQaTEjLKfmJrg+Cj aWiqHTL1nJC/f3jwCt/u9n3GvQAta2GoxM3r6WKgF+bGhNiBsujARQcea oRSwosR3/8i/fJFuUKQyjTjkf70AzdA3gCBQ+3UpdNUfztMBycRFJe6PG Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10992"; a="20527523" X-IronPort-AV: E=Sophos;i="6.06,179,1705392000"; d="scan'208";a="20527523" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Feb 2024 02:09:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,179,1705392000"; d="scan'208";a="5746931" Received: from marquiz-s-2.fi.intel.com (HELO [10.237.72.58]) ([10.237.72.58]) by fmviesa007.fm.intel.com with ESMTP; 23 Feb 2024 02:09:50 -0800 Message-ID: Date: Fri, 23 Feb 2024 12:09:49 +0200 Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: irq/51-DLL075B:01 in D state without touchpad usage, interrupts increase To: Paul Menzel Cc: linux-i2c@vger.kernel.org, LKML References: <9181c391-bb08-4c1e-ad27-94b8493df86d@molgen.mpg.de> <03572069-c9ab-4912-a6b1-9f9c26ae5384@linux.intel.com> <68a6e356-a53e-4bc2-8f5c-4ab36c0c3349@molgen.mpg.de> Content-Language: en-US From: Jarkko Nikula In-Reply-To: <68a6e356-a53e-4bc2-8f5c-4ab36c0c3349@molgen.mpg.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2/22/24 17:59, Paul Menzel wrote: > Dear Jarkko, > > > Thank you very much for your reply. > > Am 22.02.24 um 16:16 schrieb Jarkko Nikula: > >> On 2/20/24 18:15, Paul Menzel wrote: > >>> On a Dell XPS 13 9360 with Debian sid/unstable and Linux 6.8-rc4+ >>> (and probably before), I sometimes notice the fan spinning up, and >>> trying to figure out why, I noticed that `top` showed >>> `irq/51-DLL075B:01` in state D (uninterruptible sleep (usually IO)). >>> That is without using the touchpad. I am using an external USB >>> keyboard and an external USB mouse. >>> >>> >>>      $ sudo dmesg | grep -e "DMI:" -e "Linux version" -e microcode >>>          [    0.000000] Linux version 6.8.0-rc4+ >>> (build@bohemianrhapsody.molgen.mpg.de) (gcc (Debian 13.2.0-13) >>> 13.2.0, GNU ld (GNU Binutils for Debian) 2.42) #25 SMP >>> PREEMPT_DYNAMIC Sat Feb 17 05:39:03 CET 2024 >>>      [    0.000000] DMI: Dell Inc. XPS 13 9360/0596KF, BIOS 2.21.0 >>> 06/02/2022 >>>      [    0.367292] microcode: Current revision: 0x000000f4 >>>      [    0.367293] microcode: Updated early from: 0x000000f0 >>> >>>      $ sudo dmesg | grep DLL075B >>>      [    0.967975] input: DLL075B:01 06CB:76AF Mouse as >>> /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-DLL075B:01/0018:06CB:76AF.0001/input/input2 >>>      [    0.968302] input: DLL075B:01 06CB:76AF Touchpad as >>> /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-DLL075B:01/0018:06CB:76AF.0001/input/input3 >>>      [    0.968569] hid-generic 0018:06CB:76AF.0001: input,hidraw0: >>> I2C HID v1.00 Mouse [DLL075B:01 06CB:76AF] on i2c-DLL075B:01 >>>      [   19.753775] input: DLL075B:01 06CB:76AF Mouse as >>> /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-DLL075B:01/0018:06CB:76AF.0001/input/input17 >>>      [   19.753950] input: DLL075B:01 06CB:76AF Touchpad as >>> /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-DLL075B:01/0018:06CB:76AF.0001/input/input18 >>>      [   19.754654] hid-multitouch 0018:06CB:76AF.0001: >>> input,hidraw0: I2C HID v1.00 Mouse [DLL075B:01 06CB:76AF] on >>> i2c-DLL075B:01 >>> >>>  From `top`: >>> >>>      206 root     -51   0       0      0      0 D   1,7   0,0 >>> 8:45.46 irq/51-DLL075B:01 >>> >>>      $ ps aux | grep 'irq/51' >>>      root         206  0.2  0.0      0     0 ?        D    Feb17 >>> 12:11 [irq/51-DLL075B:01] >>> >>> The interrupts increase though by around 610 per second (without >>> using the device): >>> >>>      $ for i in $(seq 1 10); do LANG= date; sudo grep -e '17:' -e >>> '51:' /proc/interrupts; sleep 1; done >>>      Tue Feb 20 17:04:23 CET 2024 >>>        17: 1631256120          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25255617     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:27 CET 2024 >>>        17: 1631295844          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25256229     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:28 CET 2024 >>>        17: 1631335618          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25256843     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:29 CET 2024 >>>        17: 1631375224          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25257454     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:30 CET 2024 >>>        17: 1631415636          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25258076     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:31 CET 2024 >>>        17: 1631455174          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25258687     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:32 CET 2024 >>>        17: 1631494990          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25259300     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:33 CET 2024 >>>        17: 1631534944          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25259915     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:34 CET 2024 >>>        17: 1631574647          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25260527     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>>      Tue Feb 20 17:04:35 CET 2024 >>>        17: 1631613552          0          0    6452384  IR-IO-APIC >>> 17-fasteoi   idma64.1, i2c_designware.1 >>>        51:   25261130     109943          0          0  IR-IO-APIC >>> 51-fasteoi   DLL075B:01 >>> >>> The D state increases the load average. >>> >>> Is that the expected behavior? >> >> No this is not. Touchpad appears to be firing interrupt line 51 >> continuously and then drivers/hid/i2c-hid/i2c-hid-core.c: >> i2c_hid_irq() is trying to read input from touchpad over I2C bus. >> >> Not sure is this HW failure or system FW error (there are bad ACPI >> tables out there misconfiguring things etc). > > It normally works, and I have no idea, if this even contributed to the > laggy system. Right now, the interrupts do not increase when *not* using > the touchpad or touchscreen. > Ah, so it triggers randomly? When it happens does the situation remain or does it recover back to normal somehow, e.g. after touching the touchpad, unloading and loading the i2c_hid[_acpi] module, suspend/resume cycle, etc? > If it helps, the output of `acpidump` is attached to the (unrelated) > Linux Kernel Bugzilla issue *Linux warning `usb: port power management > may be unreliable` on Dell XPS 13 9360* [1]. > > Do you have a suggestion, what I can do next time, this happens? > I'd try to see is it possible to recover back to normal or is reboot required. That might give ideas what might trigger the situation. > Could Linux detect this situation and log something? > Don't know. Perhaps difficult to differentiate from normal touchpad use.