From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 58CDA9454 for ; Sun, 16 Feb 2025 20:13:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739736799; cv=none; b=sTpcBEfe1DBGtOxrJRD2sfxKAu7Ny9Q3qlaAFr4k1f+xStjzdwIzgt9jvu6Ge1a+Dk+y+z8Kq34uflhE/z5MKNLiX1LtIdDqdxSfcVQNkC3qlKIPhzRo9QLJo1qnV+FthDg8cnNYVnHT1rItQtpXV9JppwlSBfuQpjILR+2gXNs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739736799; c=relaxed/simple; bh=/3goS/B/0TuHOpIkgJCW7Ile8lPR4M0Pq2wcji6Mp9I=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=pX4cx5bzIfafSAvYQrf+KXaLz3TobFwU07zeGAVp4toY/7bl0Xil4OrAUEKENOiio114lpE8nKslcsYBj3704Ipu4jkrQ8aZ6F3muw4ZeGvVORY/8xObKeQBX1Fq5J/CYeFI5ruNzhE7GUcxVUaJGQbu3xn+o16iERc+RQScPvM= 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=RnTP4Dfi; arc=none smtp.client-ip=192.198.163.15 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="RnTP4Dfi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1739736798; x=1771272798; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=/3goS/B/0TuHOpIkgJCW7Ile8lPR4M0Pq2wcji6Mp9I=; b=RnTP4DfiB4OSBVYV2FkNo4qcYvyLQv2WeLmPFFtKj9mesozMKjtlHX9L dqRfOM+yt/GnUP6zrDWJlAnBmhfEoqhWCD4T2y0rJhSpJbJRjK03cjEjP HEErouEhu7e0HGgYbomGxK5q5G9Sm2TvlhT9wb3IUCgvkTTueCcl40JBd b3iUzuOjKuACMkLQsEFD6elU4DP/xEtbGdPQZUEa1OyjcRNdZ451M0kPt eKokbeqg4Exs6Km1Np0UZgPOQ0Win5B9hDWUemjfWc8QTaO9/W1sQI10R EZvhtHK8qcF69ZwZlLZE8Un3FEpQTM+QtL7IJf2lcfNvPokUwmm/R5eOe w==; X-CSE-ConnectionGUID: IeDycitPSTiC7EMvl6cX9g== X-CSE-MsgGUID: V/d4WT0oQX+xE/8OGV6MzQ== X-IronPort-AV: E=McAfee;i="6700,10204,11347"; a="40557481" X-IronPort-AV: E=Sophos;i="6.13,291,1732608000"; d="scan'208";a="40557481" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2025 12:13:17 -0800 X-CSE-ConnectionGUID: yjMVYenURReTGD/qT+6iVQ== X-CSE-MsgGUID: fjBnY6UJQka6YMu6LpWoSw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="144859915" Received: from smile.fi.intel.com ([10.237.72.58]) by fmviesa001.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Feb 2025 12:13:15 -0800 Received: from andy by smile.fi.intel.com with local (Exim 4.98) (envelope-from ) id 1tjl0r-0000000CCkJ-06EO; Sun, 16 Feb 2025 22:13:13 +0200 Date: Sun, 16 Feb 2025 22:13:12 +0200 From: "andriy.shevchenko@linux.intel.com" To: "Borah, Chaitanya Kumar" Cc: "linux-serial@vger.kernel.org" , "intel-gfx@lists.freedesktop.org" , "intel-xe@lists.freedesktop.org" , "Kurmi, Suresh Kumar" , "Saarinen, Jani" Subject: Re: Regression on linux-next (next-20250210) Message-ID: References: Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo The fix landed upstream, will be in next Linux Next. c213375e3283 ("serial: 8250_dw: Call dw8250_quirks() conditionally") On Sat, Feb 15, 2025 at 04:16:58PM +0000, Borah, Chaitanya Kumar wrote: > Hello Andy, > > Hope you are doing well. I am Chaitanya from the linux graphics team in Intel. > > This mail is regarding a regression we are seeing in our CI runs[1] on linux-next repository. > > Since the version next-20250210 [2], many machines in our CI are unable to boot. > > Unfortunately, we have not been able to collect any logs (even from pstore). > > However after bisecting the tree, the following patch [3] seems to be the first "bad" > commit > > ````````````````````````````````````````````````````````````````````````````````````````````````````````` > commit bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f > Author: Andy Shevchenko mailto:andriy.shevchenko@linux.intel.com > Date:   Mon Feb 3 14:14:56 2025 +0200 > >     serial: 8250_dw: Drop unneeded NULL checks in dw8250_quirks() > >     Since platform data is being provided for all supported hardware, >     no need to NULL check for it. Drop unneeded checks. > > ````````````````````````````````````````````````````````````````````````````````````````````````````````` > > We also verified that if we revert the patch the issue is not seen. > > Could you please check why the patch causes this regression and provide a fix if necessary? > > Thank you. > > Regards > > Chaitanya > > [1] https://intel-gfx-ci.01.org/tree/linux-next/combined-alt.html? > [2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250210 > [3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20250210&id=bfd3d4a40f3905ec70b17dbfa9b78764e59e4b4f > > -- With Best Regards, Andy Shevchenko