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=-7.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 69A25C43603 for ; Fri, 20 Dec 2019 01:44:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3BABD2467E for ; Fri, 20 Dec 2019 01:44:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576806251; bh=7Cih23Cwjps0fHiwT5pfwZhbRXsTuF8ylaqJmIWg1EM=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=tnFAygvgBPWaagZOnbfSZAO6eiMHRx+agk4qYAz2hBV7AOC00GQmA3DycNT1UHsh/ 2X9yywS2vsyhclF/AyL3GcchNxXekjn2ik9Ezoy1ABAlqvrvQBIPjZhESOU7SYhyX4 7NGAtoItdoSOQsQGVvhhPWgAAEGHgdgkNC4TCw/0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727071AbfLTBoK (ORCPT ); Thu, 19 Dec 2019 20:44:10 -0500 Received: from mail.kernel.org ([198.145.29.99]:48526 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727006AbfLTBoK (ORCPT ); Thu, 19 Dec 2019 20:44:10 -0500 Received: from mail-wm1-f42.google.com (mail-wm1-f42.google.com [209.85.128.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9C76624689 for ; Fri, 20 Dec 2019 01:44:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576806249; bh=7Cih23Cwjps0fHiwT5pfwZhbRXsTuF8ylaqJmIWg1EM=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=zG6k3JseLbGsOvNaFmRmkIDqfS68H269BY2OQUoc+Qy7/88a1gvwznjJlTlLBSFEr dVqsyI2WsG4DejE6mzLC9HADpbQUBysFDT69QOfx2W5XjAQsD7l79YEORFZfBAaD6w HmQEwPszcHdrZ2tHloxr6VkCTNUzvGHxfX6CIvUg= Received: by mail-wm1-f42.google.com with SMTP id u2so7584268wmc.3 for ; Thu, 19 Dec 2019 17:44:09 -0800 (PST) X-Gm-Message-State: APjAAAWSf6yZmJxwgRE8DjDeL526f1YHdv5dBerJW/H4oS65A2VbQJLY 1LRHKPiaZtRpOt6y2IZ8ljFM3zGl1LVkCiYjXlIpPQ== X-Google-Smtp-Source: APXvYqweUeUxuTYW5VPVDKeujQNK0kTO4GLH5byvbvxy4PJe0muLBwvRVX7sKZaxYC39H7l9uH2uzWC61tUNHV4L0Ew= X-Received: by 2002:a7b:cbc9:: with SMTP id n9mr13296136wmi.89.1576806248079; Thu, 19 Dec 2019 17:44:08 -0800 (PST) MIME-Version: 1.0 References: <20191203205716.1228-1-Jason@zx2c4.com> <20191209154505.6183-1-Jason@zx2c4.com> In-Reply-To: From: Andy Lutomirski Date: Thu, 19 Dec 2019 17:43:56 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH] x86/quirks: disable HPET on Intel Coffee Lake Refresh platforms To: "Jason A. Donenfeld" Cc: X86 ML , Feng Tang , Kai-Heng Feng , Thomas Gleixner , stable Content-Type: text/plain; charset="UTF-8" Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Thu, Dec 19, 2019 at 5:43 PM Jason A. Donenfeld wrote: > > Hi, > > Thought I should give a poke here so that this doesn't slip through > the cracks again. Could we get this in for rc3? Thomas? BTW, you forgot LKML. > > Thanks, > Jason > > On Mon, Dec 9, 2019 at 4:45 PM Jason A. Donenfeld wrote: > > > > This is a follow up of fc5db58539b4 ("x86/quirks: Disable HPET on Intel > > Coffe Lake platforms"), which addressed the issue for 8th generation > > Coffee Lake. Intel has released Coffee Lake again for 9th generation, > > apparently still with the same bug: > > > > clocksource: timekeeping watchdog on CPU3: Marking clocksource 'tsc' as unstable because the skew is too large: > > clocksource: 'hpet' wd_now: 24f422b8 wd_last: 247dea41 mask: ffffffff > > clocksource: 'tsc' cs_now: 144d927c4e cs_last: 140ba6e2a0 mask: ffffffffffffffff > > tsc: Marking TSC unstable due to clocksource watchdog > > TSC found unstable after boot, most likely due to broken BIOS. Use 'tsc=unstable'. > > sched_clock: Marking unstable (26553416234, 4203921)<-(26567277071, -9656937) > > clocksource: Switched to clocksource hpet > > > > So, we add another quirk for the chipset > > > > Signed-off-by: Jason A. Donenfeld > > Cc: Feng Tang > > Cc: Kai-Heng Feng > > Cc: Thomas Gleixner > > Cc: stable@vger.kernel.org > > --- > > arch/x86/kernel/early-quirks.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c > > index 4cba91ec8049..a73f88dd7f86 100644 > > --- a/arch/x86/kernel/early-quirks.c > > +++ b/arch/x86/kernel/early-quirks.c > > @@ -712,6 +712,8 @@ static struct chipset early_qrk[] __initdata = { > > PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, > > { PCI_VENDOR_ID_INTEL, 0x3ec4, > > PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, > > + { PCI_VENDOR_ID_INTEL, 0x3e20, > > + PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, > > { PCI_VENDOR_ID_BROADCOM, 0x4331, > > PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset}, > > {} > > -- > > 2.24.0