From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.yourmailgateway.de (relay.yourmailgateway.de [194.59.206.189]) (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 BFA033B71C3 for ; Thu, 24 Sep 2026 07:34:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.59.206.189 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790235271; cv=none; b=C+g7WTli6xC1KhC6dLUerKmoPLNNvpRXj5bcPI7R+SwnxpiWxwdbOO7rT2dZ7RxbEc90Juu0EUSn8qMMR6chMmemh/8d2e48xLi4Xb6KpP+F627Zd+PVoFHYnyxes39kyTXqdaf8ubbwMC++lgt4tzwA3ge3ciNjdd3eXigOpH0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790235271; c=relaxed/simple; bh=MygDLt77CAWexrvXWHNdRVysOGikwZW7aGyxat4mspo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=sUn8sXvaHBhs4+6FNbxXWY2Bnh1xcga6w7QueNCw9uIluN3IigWWO5OteJrvJi62bT0v7dW0CIZ4KSJWZhJUukSkgeV1hEV3jENNlHVAqtK0QEB38L0chHtHvyS05JTkDFrWk9GEshRSZGtImgXxSfzEgHq4yqDdWs4JdtGqYqo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=leemhuis.info; spf=pass smtp.mailfrom=leemhuis.info; dkim=pass (2048-bit key) header.d=leemhuis.info header.i=@leemhuis.info header.b=LuS1KZ33; arc=none smtp.client-ip=194.59.206.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=leemhuis.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=leemhuis.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=leemhuis.info header.i=@leemhuis.info header.b="LuS1KZ33" Received: from relay02-mors.netcup.net (localhost [127.0.0.1]) by relay02-mors.netcup.net (Postfix) with ESMTPS id 4hr5F70Rh2z4NB0; Thu, 24 Sep 2026 09:34:19 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=leemhuis.info; s=key2; t=1790235259; bh=MygDLt77CAWexrvXWHNdRVysOGikwZW7aGyxat4mspo=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=LuS1KZ33CklYBOlwsAqs9/QrxI9dSGf8IeCa8Vx/JpgwBH7xzIy8OyQW1wwQYgKw+ 4orq/C+jHH+X4bgwZoi8dxvn+8b99Bayalo5pK03K5MOzromw/9OZ1548Rc5eMcwUh 3iHSMZtrBqAp6KozHPLKJEq/wWIW+RpDdhpfgYyg9ZJr2k7Y8C1TOuCexXP3y89Up1 XZBseHFEmdxEYTsZIy8UlwBs1l+g52VYBlyVaJcV2Y5oVz0Jl26gl+ZS0puowDEp8s etPQpFXc3Kg3FZ4Z7OeSQfLGp6ZH7T0DgvrUwC4B5i0VaY04HsIFhENXgaqJ2RbmHO QbTqhmFh5hI2A== Received: from policy02-mors.netcup.net (unknown [46.38.225.35]) by relay02-mors.netcup.net (Postfix) with ESMTPS id 4hr5F66rPXz7xFf; Thu, 24 Sep 2026 09:34:18 +0200 (CEST) Received: from mxe9fb.netcup.net (unknown [10.243.12.53]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by policy02-mors.netcup.net (Postfix) with ESMTPS id 4hr5F55zj7z8svW; Thu, 24 Sep 2026 09:34:17 +0200 (CEST) Received: from [IPV6:2a02:8108:8984:1d00:a0cf:1912:4be:477f] (unknown [IPv6:2a02:8108:8984:1d00:a0cf:1912:4be:477f]) by mxe9fb.netcup.net (Postfix) with ESMTPSA id BFD145FA13; Thu, 24 Sep 2026 09:34:16 +0200 (CEST) Authentication-Results: mxe9fb; spf=pass (sender IP is 2a02:8108:8984:1d00:a0cf:1912:4be:477f) smtp.mailfrom=regressions@leemhuis.info smtp.helo=[IPV6:2a02:8108:8984:1d00:a0cf:1912:4be:477f] Received-SPF: pass (mxe9fb: connection is authenticated) Message-ID: <4f37f217-fb94-4d4b-a2aa-9df8069c62bb@leemhuis.info> Date: Thu, 24 Sep 2026 09:34:16 +0200 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [REGRESSION] e1000e: heavy packet loss on Lenovo ThinkPad P14s Gen 5 (I219-LM, Meteor Lake) after K1 re-enable; fixed by disable-k1 To: dima.ruinskiy@intel.com, anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com Cc: Javier Herrera , vitaly.lifshits@intel.com, netdev@vger.kernel.org, regressions@lists.linux.dev, intel-wired-lan@lists.osuosl.org References: From: Thorsten Leemhuis Content-Language: de-DE, en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-PPP-Message-ID: <179023525718.4133067.16941654907970362532@mxe9fb.netcup.net> X-NC-CID: cGcaaXxBdAKNLYFFv6hi9U+IhSapvlba8V2FM/uAY+tvOOFUJOE= On 9/15/26 10:57, Javier Herrera wrote: > > Since commit 578294b8b60d ("e1000e: Reconfigure PLL clock gate timeout and > re-enable K1 on Meteor Lake") the integrated I219-LM in a Lenovo ThinkPad > P14s Gen 5 (Intel variant, Core Ultra 9 185H) shows constant packet loss > and erratic latency on the wired link. Wi-Fi and a USB-C RTL8152 adapter on > the same cable, switch and router are fine, so the network itself is not > the problem. > > Setting the private flag "disable-k1" fixes it immediately, so this looks > like another system where the PLL clock gate reconfiguration is not enough > and the DMI quirk table introduced by that commit should be extended. > [...] Dima or e1000e maintainers, could you please submit and upstream a quirk entry to resolve this regression? Ideally with a stable tag? Javier afaics provided everything needed for this. Reminder, Linus rule of thumb wrt to regressions is "generally fix them within a week, preferably before the next rc.": https://www.kernel.org/doc/html/latest/process/handling-regressions.html#on-how-quickly-regressions-should-be-fixed Or is there some reason why the quirk entry is a bad idea here? Sending this as things looked stalled from here; or was there some progress to resolve this already which I missed? Ciao, Thorsten