From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB6FF1BE251 for ; Thu, 20 Mar 2025 07:49:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742456954; cv=none; b=RUd9JlmJqVupGxxnKl2zk3MiJpJWHFBAGtfYnz34WHxHhAXcKKjzsJQdCd55VN6K+b39SvjjdX4NOv1XpEsOjxmyY05DbvUr2V8wRAFV74LZf14eX0u3UrXH3od9G0ZeFuOFIjyHtwfOyZ/h54pzHhWeGt1rSlt4znzCvQyOC1s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742456954; c=relaxed/simple; bh=yRlwn33uFCo1WzUWKINkmhf7Do4XLLhrmvg41jjhsxc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=nJkviM57xYSQScUIhyD3H3/SO1VGNMOXpYViHzbFpAcAghig8EbtMhD7tsny6yPHqNO/QfmlEvK+zKvEqy/OaAyX2OKcn86ep5KG3PmARRE6PwkMu7LONQAZ9aD1FRGfo6/KTVKmBJzzQ7VUKOG5e1OkGo1jlxl/nEGzlgCu6gk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=HVcInndd; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="HVcInndd" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-43ce71582e9so2658665e9.1 for ; Thu, 20 Mar 2025 00:49:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1742456951; x=1743061751; darn=lists.linux.dev; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=ws2Zy20FmJpDTTN7PoL/aNyEtehNiavqFzYGdZ5kc1k=; b=HVcInnddIAuXjQOhHvFj+L5U0GV7bBdzxPYchPunFawIBTATqXYMAb6HsOF0FGh9Qb 5uEy6fl//WVV2Bh7Tq+r9BIZ67eDvXz7NUIUmor3BaFF1JL+iZTQkald+zeial5Usq6q xjx8rWj/HmWX3wiPGMvU0+Vuu4pi5asRCsZDyGyLohZ6Uc5E8O9NC998EporpUlJR/KL TL/7+0jdhmjUF/ViiEj7rdMfw3EfqZNw0LNfMQe2dWFZghdtnCJiaTTtO/ye4Lpp/9Ea IZLWWv6S/ZFj1iMdyjAqZeyPAnAhkoY2wxoaUCA7HGlt1OaNgDVtcT7tdY504PzxisTc ZirA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742456951; x=1743061751; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ws2Zy20FmJpDTTN7PoL/aNyEtehNiavqFzYGdZ5kc1k=; b=We6UHxb5h0S05Q01IS/rDrl8cGSOmk8o6pA/dC6TgSeIX3Ixi5kUNLgreQNf0bUpwk NrtgyvOg5q3kZwc8ORaG2VJdCZfC9+6v3rQBrPcLaDWfsPJpyxoUzDB5taLKBA6UE44U ffQrzRCFOjFVPzrt67rbz+vHfK4jAnKt2Oe8arzIjeI/4gp7LgMThVejUXyI/iAb8JUF nb1L8Vnnm4y/ksbNxChaBMzEMnL/9eb8HYR4MOJ34PzpqvTPJaeZmyTpDUVJSbreyeSb kn1xgOwl70vzSl2zXcxcjNLWYbXVsRwvXas1SxefA5FqIouUIFAE37ouhAgpb2+5o2n4 hy/A== X-Forwarded-Encrypted: i=1; AJvYcCXlK8Z1QG3kNU1ZDivpGsRV5g4IIo9vx282Euc8FsEiSULutkmZyLx1Q6fv2dwvpB7zTZGR7UQveOuVcg==@lists.linux.dev X-Gm-Message-State: AOJu0Yxr0w2G5M36qm21KGl3G5mgB6JUuZ/QaF2rDTcQO061T2TtJZEu mfbRu646MRP//YvFboNM7uh550a6vhbPFcDZBkKHo52Tms5JNivO X-Gm-Gg: ASbGncvyXSddJXJZaBKUr+hHa7l6GWNPVb9p/fDsAnSa82GrJJCwvqKR5Wb6nHfq9+Y kRIxLk86kQ71z2UKwaaKyWRzUE8QegHoK/0ZKgl3RHiW95FSnjSAMoHL/F3YTEqimJOzMFmx8HR 68ssKjDqfzEwSJGkYgortfvD8cURUJpND1oKZlYmWUthCnw+fy3U8gFRQziFfJUXztd+G4G+E62 DUzBhz7Qm1HEs7iH8bN4dHluczGKSqC2gFwE78F1rNPQTTyeM98iTinVJOSl7NFH/YdVRgK07dj 5uG3ftGLjrfro5mnbdiPMHtG4BaQXPbV++BUWimhLN0ZcRuhzN89Qsr5OlFbiHwP0wxhuCgm18Q /SsORzUQVg4YEN+DAMyDuDQEgOFA= X-Google-Smtp-Source: AGHT+IH+6TOIh3yGIwGiDxScLZLDrt5LEp15vryvXSV/7bzPMR+dyIfoLNFXNIg4iF0tI4JWMv+IJA== X-Received: by 2002:a05:600c:5248:b0:43d:82c:2b11 with SMTP id 5b1f17b1804b1-43d495893d4mr15878585e9.23.1742456950735; Thu, 20 Mar 2025 00:49:10 -0700 (PDT) Received: from [192.168.10.194] (net-188-216-175-96.cust.vodafonedsl.it. [188.216.175.96]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43d43f6befesm39885735e9.25.2025.03.20.00.49.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Mar 2025 00:49:10 -0700 (PDT) Message-ID: <5e260035-1f1b-4444-b3b8-1b5757e5ed08@gmail.com> Date: Thu, 20 Mar 2025 08:49:09 +0100 Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Regression: mt7921e unable to change power state from d3cold to d0 - 6.12.x broken, past LTS 6.6.x works To: Greg KH Cc: stable@vger.kernel.org, Linux Regressions References: <415e7c31-1e8d-499b-911e-33569c29ebe0@gmail.com> <2025031923-rocklike-unbitten-9e90@gregkh> Content-Language: en-US, it-IT From: Sergio Callegari In-Reply-To: <2025031923-rocklike-unbitten-9e90@gregkh> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Might be able to test on the distro built kernels that basically trace the releases and stable point releases. This should start helping bracketing the problem a bit better as a starter. But it is going to take a lot of time, since the issue happens when the machine fails to get out of hibernation, that is not always, and obvioulsy I need to try avoiding this situation as much as possible. Incidentally, the machine seems to hibernate-resume just fine. It is when I suspend-then-hibernate that I get the failures. Before contacting the network driver authors, I just wanted to query whether the issue is likely in it or in the power-management or pcie subsystems. Thanks, Sergio On 20/03/2025 00:54, Greg KH wrote: > On Wed, Mar 19, 2025 at 08:38:52PM +0100, Sergio Callegari wrote: >> There is a nasty regression wrt mt7921e in the last LTS series (6.12). If >> your computer crashes or fails to get out of hibernation, then at the next >> boot the mt7921e wifi does not work, with dmesg reporting that it is unable >> to change power state from d3cold to d0. >> >> The issue is nasty, because rebooting won't help. > > Can you do a 'git bisect' to track down the issue? Also, maybe letting > the network driver authors know about this would be good. > > thanks, > > greg k-h