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=-7.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 EA3CBC43219 for ; Mon, 29 Apr 2019 20:36:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9D281215EA for ; Mon, 29 Apr 2019 20:36:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729419AbfD2Ugf (ORCPT ); Mon, 29 Apr 2019 16:36:35 -0400 Received: from mga02.intel.com ([134.134.136.20]:31871 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729212AbfD2Ugf (ORCPT ); Mon, 29 Apr 2019 16:36:35 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 Apr 2019 13:36:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,411,1549958400"; d="scan'208";a="169068219" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.157]) by fmsmga001.fm.intel.com with SMTP; 29 Apr 2019 13:36:31 -0700 Received: by lahna (sSMTP sendmail emulation); Mon, 29 Apr 2019 23:36:30 +0300 Date: Mon, 29 Apr 2019 23:36:30 +0300 From: Mika Westerberg To: Michael Hirmke Cc: bhelgaas@google.com, gregkh@linuxfoundation.org, jslaby@suse.cz, linux-kernel@vger.kernel.org, lukas@wunner.de, tiwai@suse.de, Christian Kellner Subject: Re: [REGRESSION 5.0.8] Dell thunderbolt dock broken (xhci_hcd and thunderbolt) Message-ID: <20190429203630.GW2583@lahna.fi.intel.com> References: <20190429195459.GU2583@lahna.fi.intel.com> <20190429201347.GV2583@lahna.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190429201347.GV2583@lahna.fi.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 29, 2019 at 11:13:47PM +0300, Mika Westerberg wrote: > On Mon, Apr 29, 2019 at 10:03:00PM +0200, Michael Hirmke wrote: > > Hi all, > > > > >On Mon, Apr 29, 2019 at 09:47:15PM +0200, Takashi Iwai wrote: > > >> Hi, > > > > >Hi, > > > > >> we've got a regression report wrt xhci_hcd and thunderbolt on a Dell > > >> machine. 5.0.7 is confirmed to work, so it must be a regression > > >> introduced by 5.0.8. > > >> > > >> The details are found in openSUSE Bugzilla entry: > > >> https://bugzilla.opensuse.org/show_bug.cgi?id=1132943 > > >> > > [...] > > >> > > >> I blindly suspected the commit 3943af9d01e9 and asked for a reverted > > >> kernel, but in vain. And now it was confirmed that the problem is > > >> present with the latest 5.1-rc, too. > > >> > > >> I put some people who might have interest and the reporter (Michael) > > >> to Cc. If anyone has an idea, feel free to join to the Bugzilla, or > > >> let me know if any help needed from the distro side. > > > > >Since it exists in 5.1-rcX also it would be good if someone > > >who see the problem (Michael?) could bisect it. > > > > I know the meaning of bisecting, but I'm not really a developer, so I am > > probably not able to interpret the results. > > No worries. > > I'm adding Christian who reported similar (same?) problem last week. > Christian, this seems to exist in v5.1-rc6 at least. Can you try to > bisect it on your side? > > I also have XPS 9370 but not that particular dock. I will check tomorrow > if I can reproduce it as well. There aren't too many changes between 5.0.7 and 5.0.8 that touch PCI/ACPI. This is just a shot in the dark but could you try to revert: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?h=linux-5.0.y&id=da6a87fb0ad43ae811519d2e0aa325c7f792b13a and see if it makes any difference?