From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751365AbdBDQwz (ORCPT ); Sat, 4 Feb 2017 11:52:55 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:38580 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750890AbdBDQwy (ORCPT ); Sat, 4 Feb 2017 11:52:54 -0500 Date: Sat, 4 Feb 2017 17:52:49 +0100 From: Pavel Machek To: kernel list , bhelgaas@google.com, linux-pci@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org Subject: Re: v4.10-rc6 boot regression on Intel desktop, does not boot after cold boots, boots after reboot Message-ID: <20170204165248.GA6951@amd> References: <20170203211854.GA3697@amd> <20170203224309.GA22118@amd> <20170204084856.GA32381@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="XsQoSWH+UP9D9v3l" Content-Disposition: inline In-Reply-To: <20170204084856.GA32381@amd> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --XsQoSWH+UP9D9v3l Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > > > Aha. So it looks difference is probably in "where is keyboard plu= gged > > > > > in" but in "reboot" vs. "cold boot". I did not do a cold boot in = quite > > > > > a while :-(. > > > > >=20 > > > > > Booting to grub, then hitting ctrl-alt-del is enough to make it w= ork. Ouch. > > > > >=20 > > > > > It happens with current Linus' tree. > > > >=20 > > > > v4.10-rc6-feb3 : broken > > > > v4.9 : ok > > > > (v4.6 : ok) > v4.10-rc1 seems to work. v4.10-rc3: ok v4.10-rc5: bad, I get some kind of backtrace? Next boot results in hang. It boots ok twice in between. v4.10-rc6: ok ?! 34e00accf612bc5448ae709245c2b408edf39f46 : ok? v4.10-rc6-feb3: ok?! (with config.ok, and with original config. Hmm?) This machine was pretty reliable (except rowhammer), but I admit their EC code may leave something to be desired. Sometimes it runs without power LED lit (usually after strange crashes), sometimes _two_ long presses are neccessary to power it off. So... yesterday it hung on cold boot, but not on reboot. Verified 5 times or more. Today, I can't reproduce the hang. Strange :-(. Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --XsQoSWH+UP9D9v3l Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAliWBuAACgkQMOfwapXb+vLtJgCfegaUKN5H+AM+gWMHDUQVuYzz RH8AnjZmkOb5LGSHGoDTGRFHptn/QLNC =sHUH -----END PGP SIGNATURE----- --XsQoSWH+UP9D9v3l--