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=-4.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 44F3AC433E5 for ; Wed, 22 Jul 2020 09:23:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 16F5B206D7 for ; Wed, 22 Jul 2020 09:23:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728911AbgGVJXw (ORCPT ); Wed, 22 Jul 2020 05:23:52 -0400 Received: from mga01.intel.com ([192.55.52.88]:20705 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728360AbgGVJXw (ORCPT ); Wed, 22 Jul 2020 05:23:52 -0400 IronPort-SDR: 6e/I5EKMAeOVd0It1tqlHIYmRgDIw4fLVsnJGf4DxPR0BuPH5wJ7WQXVxbN/bY0YoECxoSJttG L+oBkMTdXwqA== X-IronPort-AV: E=McAfee;i="6000,8403,9689"; a="168440190" X-IronPort-AV: E=Sophos;i="5.75,381,1589266800"; d="scan'208";a="168440190" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jul 2020 02:23:52 -0700 IronPort-SDR: jP3fe072rBo2wvDbMnJ3ED+rOZ+vIZrkcAANoPNtUQzH2fOUvQUPvZNJPsgGZYCtkksdKGraHC BqxRxmFIKIGQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,381,1589266800"; d="scan'208";a="392624818" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.163]) by fmsmga001.fm.intel.com with SMTP; 22 Jul 2020 02:23:48 -0700 Received: by lahna (sSMTP sendmail emulation); Wed, 22 Jul 2020 12:23:47 +0300 Date: Wed, 22 Jul 2020 12:23:47 +0300 From: Mika Westerberg To: Lyude Paul Cc: Karol Herbst , Bjorn Helgaas , Linux PCI , Ben Skeggs , Bjorn Helgaas , nouveau , dri-devel , Patrick Volkerding , LKML , Kai-Heng Feng , Sasha Levin Subject: Re: nouveau regression with 5.7 caused by "PCI/PM: Assume ports without DLL Link Active train links in 100 ms" Message-ID: <20200722092347.GB5180@lahna.fi.intel.com> References: <20200716235440.GA675421@bjorn-Precision-5520> <20200721122247.GI5180@lahna.fi.intel.com> <20200721152737.GS5180@lahna.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Tue, Jul 21, 2020 at 02:24:19PM -0400, Lyude Paul wrote: > On Tue, 2020-07-21 at 12:00 -0400, Lyude Paul wrote: > > On Tue, 2020-07-21 at 18:27 +0300, Mika Westerberg wrote: > > > On Tue, Jul 21, 2020 at 11:01:55AM -0400, Lyude Paul wrote: > > > > Sure thing. Also, feel free to let me know if you'd like access to one > > > > of > > > > the > > > > systems we saw breaking with this patch - I'm fairly sure I've got one > > > > of > > > > them > > > > locally at my apartment and don't mind setting up AMT/KVM/SSH > > > > > > Probably no need for remote access (thanks for the offer, though). I > > > attached a test patch to the bug report: > > > > > > https://bugzilla.kernel.org/show_bug.cgi?id=208597 > > > > > > that tries to work it around (based on the ->pm_cap == 0). I wonder if > > > anyone would have time to try it out. > > > > Will give it a shot today and let you know the result > > Ahh-actually, I thought the laptop I had locally could reproduce this bug but > that doesn't appear to be the case whoops. Karol Herbst still has access to a > machine that can test this though, so they'll likely get to trying the patch > today or tommorrow OK sounds good :)