From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) (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 4C405182A3; Tue, 26 Mar 2024 13:50:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.237.130.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711461017; cv=none; b=RD5qOCesad4ax4Dqi4S5x7z4VkPEcZHAHWM8uHMgva1D+jZZ8px3Fn+Kgta8NJRuF41krq9+30mPdhWvwKerei+nTkY7ftL8sf0DPhJyu8wJABQ/KdURnuTqCcJTi502wn+QYFgLGRFaX5GnKafXWLLV0y8MDFUHevGw6rXO87Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711461017; c=relaxed/simple; bh=ge9l/Gwc3AxYtcSsPMc+z1dOFILly49XM8PZgooU2WM=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=Y0XUCqfVYp6gQfyfrzXCDNXXBjfvElqF0SP43s96YOIJLM69XfpVHOOcQTfxa05XXO+N/BI7+i9gN/SexRS51Q787gPsGe8EZ1zzNlhQAeYAyoaYfzIbktfUzhnkuk9/GwS4y81lwPxYewkmTnCdbQZN5V7Cb08QhYLzu+vMScU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none 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=ZHynT0rv; arc=none smtp.client-ip=80.237.130.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none 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="ZHynT0rv" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=leemhuis.info; s=he214686; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:References:Reply-To:Cc:To:From:Subject:MIME-Version:Date: Message-ID:From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version: Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description: In-Reply-To:References; bh=42Ec/7rrOkb0s10VDIHJ7GTucWOmYS68hh6j9o0Neio=; t=1711461015; x=1711893015; b=ZHynT0rvvMp2iCCb9ldJ5pRPHY7yKvOU2jYRS+XrzZX39b7 KfT+NkSz/HRTZtcKISuA4qKuCuw5iKPlizxYWPndZjP4cxAJ39VVrh2+SZ3TTbikHOVfUIByH2WG/ fjRzSDFhI9BPhl5i9ENXHcbcRFUh7LHg3UjM0M0lvOiR5qskJQyC9BgU+M4/qztpQTtY/NRRuyPtK XC+ThhiT7WHVorQ0a59wjET1Eaq2VVrzfQUDLgoyv0FuMtw4XrpGJUk0HMnUVH/ZsVTpzyTm8beWS qW5ple9+9k4oQIBvuZps1qeq+veh6uc1b6cna0OvRUuAVLJr3ddVai3ejKvk7+Yw==; Received: from [2a02:8108:8980:2478:8cde:aa2c:f324:937e]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1rp7Bl-0003I9-VQ; Tue, 26 Mar 2024 14:50:06 +0100 Message-ID: <8734a80b-c7a9-4cc2-91c9-123b391d468c@leemhuis.info> Date: Tue, 26 Mar 2024 14:50:05 +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: dmaengine: CPU stalls while loading bluetooth module From: "Linux regression tracking (Thorsten Leemhuis)" To: vkoul@kernel.org Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, parthiban@linumiz.com, saravanan@linumiz.com, 'karthikeyan' , "bumyong.lee" , 'Linux regressions mailing list' Reply-To: Linux regressions mailing list , Linux regressions mailing list References: <1553a526-6f28-4a68-88a8-f35bd22d9894@linumiz.com> <000001da6ecc$adb25420$0916fc60$@samsung.com> <12de921e-ae42-4eb3-a61a-dadc6cd640b8@leemhuis.info> <000001da7140$6a0f1570$3e2d4050$@samsung.com> <07b0c5f6-1fe2-474e-a312-5eb85a14a5c8@leemhuis.info> <001001da7a60$78603130$69209390$@samsung.com> <9490757c-4d7c-4d8b-97e2-812a237f902b@leemhuis.info> Content-Language: en-US, de-DE In-Reply-To: <9490757c-4d7c-4d8b-97e2-812a237f902b@leemhuis.info> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1711461015;a078b924; X-HE-SMSGID: 1rp7Bl-0003I9-VQ Hi, Thorsten here, the Linux kernel's regression tracker. Top-posting for once, to make this easily accessible to everyone. Vinod Koul, what's your option here? We have two reports about regressions caused by 22a9d958581244 ("dmaengine: pl330: issue_pending waits until WFP state") [v6.8-rc1] now: https://lore.kernel.org/lkml/1553a526-6f28-4a68-88a8-f35bd22d9894@linumiz.com/ https://lore.kernel.org/all/ZYhQ2-OnjDgoqjvt@wens.tw/ [the first link points to the start of this thread] To me it sounds like this is a change that better should be reverted, but you are of course the better judge here. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) On 20.03.24 07:28, Linux regression tracking (Thorsten Leemhuis) wrote: > On 20.03.24 01:49, bumyong.lee wrote: >>>>> Hmmm. 6.8 final is due. Is that something we can live with? Or would >>>>> it be a good idea to revert above commit for now and reapply it when >>>>> something better emerged? I doubt that the answer is "yes, let's do >>>>> that", but I have to ask. >>>> >>>> I couldn't find better way now. >>>> I think it's better to follow you mentioned >>> >>> 6.8 is out, but that issue afaics was not resolved, so allow me to ask: >>> did "submit a revert" fell through the cracks or is there some other >>> solution in the works? Or am I missing something? >> >> "submit a revert" would fix the issue. but it would make another issue >> that the errata[1] 719340 described. > > "Make" as it "that other issue was present before the culprit was > applied"? Then that other issue does not matter due to the "no > regression" rule and how Linus afaics wants to see it applied in > practice. For details on the latter, see the quotes from him here: > https://docs.kernel.org/process/handling-regressions.html > Hence please submit a revert (or tell me if I misunderstood something) > -- or of course a workaround for the other issue that does not cause the > regression people reported. > >> [...] >> [1]: https://developer.arm.com/documentation/genc008428/latest > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) > -- > Everything you wanna know about Linux kernel regression tracking: > https://linux-regtracking.leemhuis.info/about/#tldr > If I did something stupid, please tell me, as explained on that page. > > -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page. #regzbot poke