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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99C67C3A59C for ; Fri, 16 Aug 2019 09:58:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 705F42133F for ; Fri, 16 Aug 2019 09:58:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="sfMz+uj7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727022AbfHPJ6v (ORCPT ); Fri, 16 Aug 2019 05:58:51 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:36866 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726842AbfHPJ6v (ORCPT ); Fri, 16 Aug 2019 05:58:51 -0400 Received: from pendragon.ideasonboard.com (dfj612yhrgyx302h3jwwy-3.rev.dnainternet.fi [IPv6:2001:14ba:21f5:5b00:ce28:277f:58d7:3ca4]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id BE8AD2AF; Fri, 16 Aug 2019 11:58:49 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1565949530; bh=MdSDWBvW2MRlClWqWR9NNzBT2rTDlU0t5ijPFdChgoM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=sfMz+uj7gqeE3hmQ0hFrUHz3X6evmaWEf4NBMKEvpkmkIi2hDxJAoJ4U6F/VLOkOM wlj19XR3xjKA3jdsMJisgBh+6QY8EdFd6X+3GK5d/T/5Ddqn5s+raXzisFg19ZGxot Zs1yz3cRbdLJK3LzTq+3Dv3bfYF2s44q8hQA7En4= Date: Fri, 16 Aug 2019 12:58:45 +0300 From: Laurent Pinchart To: Randy Dunlap Cc: Nathaniel Russell , LKML , linux-media , dri-devel , intel-gfx Subject: Re: Linux Kernel 5.2.8 (uvc or i915? <<<) Message-ID: <20190816095845.GC5020@pendragon.ideasonboard.com> References: <5d637638-12d1-6c39-8f76-824a0e875feb@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <5d637638-12d1-6c39-8f76-824a0e875feb@infradead.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hi Randy, On Thu, Aug 15, 2019 at 08:10:03PM -0700, Randy Dunlap wrote: > [adding mailing lists etc. with Nathaniel's test info] > > On 8/15/19 7:21 PM, Nathaniel Russell wrote: > > Well i surpressed the uvcvideo driver and you are right Randy it > > definitely is not the uvcvideo driver. There is something going on in > > the i915 driver. > > > > On 8/15/19, Randy Dunlap wrote: > >> On 8/15/19 6:15 PM, Nathaniel Russell wrote: > >>> I would really like help with the kernel error with my uvcvideo driver. > >> > >> Hi again. > >> > >> What makes you think that the problem is related to the uvcvideo driver? > >> Does some previous kernel version work correctly? If so, what version(s)? > >> > >> > >> Does this warning message only happen when the uvcvideo driver is being > >> loaded? > >> Can you suppress loading of the uvcvideo driver to find out? > >> > >> Most of the problems/errors/warnings that I see are related to the i915 > >> driver: > >> > >> [ 13.032341] timed out waiting for port C ready: got 0x20, expected 0xe0 > >> [ 13.032872] WARNING: CPU: 1 PID: 239 at > >> drivers/gpu/drm/i915/intel_display.c:1597 vlv_wait_port_ready+0x99/0xe0 > >> [i915] > >> [ 13.033632] RIP: 0010:vlv_wait_port_ready+0x99/0xe0 [i915] > >> > >> although there are a few uvcvideo warnings: > >> [ 13.039305] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was not > >> initialized! > >> [ 13.039318] uvcvideo 1-5:1.0: Entity type for entity Extension 3 was not > >> initialized! > >> [ 13.039330] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was not > >> initialized! > >> [ 13.039339] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not > >> initialized! > >> > >> Laurent, do you see any uvc issues here? Any ideas/suggestions? No, uvcvideo seems completely reunlated. > >> @intel-gfx: any ideas about what is going on here with the i915 driver? > >> > >> Original message to lkml: > >> https://lore.kernel.org/lkml/CAONH+Jm-O6=DQ+K2n5pNTNMg2Sq1KcVNFLuweVh6W82OPEFJoQ@mail.gmail.com/T/#u > >> > >> Previous message for 5.1.21 kernel: > >> https://lore.kernel.org/lkml/CAONH+JkTFujY9vEyNNuem+9rJ2qBKkf-PbKk9=DBSVEp6kW=yw@mail.gmail.com/ -- Regards, Laurent Pinchart