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=-0.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 E6458C3A59E for ; Fri, 16 Aug 2019 13:47:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BDAFD2064A for ; Fri, 16 Aug 2019 13:47:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727455AbfHPNrd (ORCPT ); Fri, 16 Aug 2019 09:47:33 -0400 Received: from mga14.intel.com ([192.55.52.115]:29774 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727203AbfHPNrc (ORCPT ); Fri, 16 Aug 2019 09:47:32 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Aug 2019 06:47:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,393,1559545200"; d="scan'208";a="194994660" Received: from jnikula-mobl3.fi.intel.com (HELO localhost) ([10.237.66.150]) by fmsmga001.fm.intel.com with ESMTP; 16 Aug 2019 06:47:30 -0700 From: Jani Nikula To: Randy Dunlap , Nathaniel Russell , linux-kernel , dri-devel , intel-gfx@lists.freedesktop.org Cc: Laurent Pinchart , linux-media@vger.kernel.org Subject: Re: [Intel-gfx] Linux Kernel 5.2.8 (uvc or i915?) In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: Date: Fri, 16 Aug 2019 16:47:29 +0300 Message-ID: <87wofddxxq.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 15 Aug 2019, 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? > > > @intel-gfx: any ideas about what is going on here with the i915 driver? Please file a bug over at [1], add drm.debug=14 module parameter, attach dmesg to the bug, all the way from boot to reproducing the issue. BR, Jani. [1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel > > > > 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/ > > > thanks. -- Jani Nikula, Intel Open Source Graphics Center