From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90BCBC43334 for ; Thu, 9 Jun 2022 13:37:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BD9FA11A469; Thu, 9 Jun 2022 13:37:17 +0000 (UTC) Received: from mr3.vodafonemail.de (mr3.vodafonemail.de [145.253.228.163]) by gabe.freedesktop.org (Postfix) with ESMTPS id 298DC11A471 for ; Thu, 9 Jun 2022 13:37:16 +0000 (UTC) Received: from smtp.vodafone.de (unknown [10.0.0.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by mr3.vodafonemail.de (Postfix) with ESMTPS id 4LJlWZ5XS3z21gc for ; Thu, 9 Jun 2022 13:37:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arcor.de; s=vfde-mb-mr2-21dec; t=1654781834; bh=CVLPrl/xomwkRCtDLdakQc1i8o7YEc0ysYoVaK6Q1DA=; h=Message-ID:Date:User-Agent:Subject:Content-Language:To:References: From:In-Reply-To:Content-Type:From; b=S3VLl1LEGgNPIQvZGY/lmOSsV6tyra5cAlVD0sOHJEVjAjrvEoOhcMqxutP7OSN2n ZKMUUYvEF+TvqN1v6MIzQUPxxKBP1h3tNoeF/61xF/8S90aVs8s68EdjRiMrnbsqr2 2cBiJkg1hx7m3w0dGcuBloUaWF/LtviwwGh0XseM= Received: from schreibtisch (p2e579e8f.dip0.t-ipconnect.de [46.87.158.143]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp.vodafone.de (Postfix) with ESMTPSA id 4LJlWY3Q1fz9vqG for ; Thu, 9 Jun 2022 13:37:10 +0000 (UTC) Message-ID: Date: Thu, 9 Jun 2022 15:37:09 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: drm/vc4: module dysfunctional on Raspberry Pi 3B as of 5.18.0 Content-Language: en-US To: dri-devel@lists.freedesktop.org References: <75eec8af-66fd-bbaa-9aea-4cdf634bf2c8@arcor.de> <20220608143605.x4arwudst3nqeg7b@houat> <20220608153608.ntgyokt67f3m7pn6@houat> <20220609092351.t2muybqjnqaqzemz@houat> From: Peter Mattern In-Reply-To: <20220609092351.t2muybqjnqaqzemz@houat> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-purgate-type: clean X-purgate: clean X-purgate-size: 848 X-purgate-ID: 155817::1654781833-EA3593BB-63FA0E5F/0/0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" > Could you start a bisection maybe? I for one am having two issues here. The harmless one is that I'm lacking a cooler for the RPi and my cross compiling skills have become a bit rusty. Both could be fixed quickly, of course. The not so harmless one is that kernel 5.18.x is completely unusable due to an other regression: the SD card is slow to a degree that makes it rather unusable, rather simple tasks are tainting the kernel because of this. E. g. a simple kernel update takes half an hour on 5.18.x. Neither sure what's the culprit here nor how to deal with it. Nonetheless: Could the module be installed without updating the kernel as a whole, e. g.by DKMS? Is there a way to narrow down the commits in question, e. g. something like 'git log ./drivers/gpu/drm/vc4/' in a Git checkout of the kernel sources?