From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753885AbdBDItB (ORCPT ); Sat, 4 Feb 2017 03:49:01 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:57792 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753785AbdBDIs7 (ORCPT ); Sat, 4 Feb 2017 03:48:59 -0500 Date: Sat, 4 Feb 2017 09:48:56 +0100 From: Pavel Machek To: pavel@ucw.cz Cc: kernel list , bhelgaas@google.com, linux-pci@vger.kernel.org Subject: Re: v4.10-rc6 boot regression on Intel desktop, does not boot after cold boots, boots after reboot Message-ID: <20170204084856.GA32381@amd> References: <20170203211854.GA3697@amd> <20170203224309.GA22118@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="envbJBWh7q8WU6mo" Content-Disposition: inline In-Reply-To: <20170203224309.GA22118@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 --envbJBWh7q8WU6mo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri 2017-02-03 23:43:09, Pavel Machek wrote: > On Fri 2017-02-03 16:59:05, Alan Stern wrote: > > On Fri, 3 Feb 2017, Pavel Machek wrote: > >=20 > > > Hi! > > >=20 > > > > > > Hmm. I moved keyboard between USB ports, and now 4.10-rc6 no lo= nger > > > > > > boots. v4.6 works ok. Let me try with keyboard unplugged... no,= I > > > > > > could not get it to work. I believe v4.9 and some v4.10-rc's wo= rked, > > > > > > but I'll have to double check. > > > > >=20 > > > > > But all the kernel versions worked when the keyboard was plugged = into > > > > > its original USB port? > > > >=20 > > > > Aha. So it looks difference is probably in "where is keyboard plugg= ed > > > > in" but in "reboot" vs. "cold boot". I did not do a cold boot in qu= ite > > > > a while :-(. > > > >=20 > > > > Booting to grub, then hitting ctrl-alt-del is enough to make it wor= k. Ouch. > > > >=20 > > > > It happens with current Linus' tree. > > >=20 > > > v4.10-rc6-feb3 : broken > > > v4.9 : ok > > > (v4.6 : ok) > >=20 > > All I can suggest is git bisect. :-( But I agree that the problem is= =20 > > unlikely to be in the USB layer. >=20 > Yep. I'm hoping PCI people speak up.... adding printks there should be > possibility, too. >=20 > (And I guess I should remove you and usb people from the cc-list... in > the next mails). >=20 > (I verified it happens with 32bit configuration, too, FWIW). v4.10-rc1 seems to work. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --envbJBWh7q8WU6mo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAliVlXgACgkQMOfwapXb+vIGbgCgrTTog38v1RFejFS4Ta+g4+1n AcQAn36AZW7Ie5p7LnMOL8G5jBQzKhnr =Pu6x -----END PGP SIGNATURE----- --envbJBWh7q8WU6mo--