From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752354AbeCCUpP (ORCPT ); Sat, 3 Mar 2018 15:45:15 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:53665 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752175AbeCCUpO (ORCPT ); Sat, 3 Mar 2018 15:45:14 -0500 Date: Sat, 3 Mar 2018 21:45:12 +0100 From: Pavel Machek To: "Rafael J. Wysocki" Cc: Andrew Worsley , kernel list , Linux-pm mailing list , "Rafael J. Wysocki" , Len Brown , 844788@bugs.debian.org Subject: Re: 4.16-rc3 fails to resume on MacBookPro10,1 - Message-ID: <20180303204512.GA9259@amd> References: <20180303092417.GA30917@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="IJpNTDwzlM2Ie8A6" Content-Disposition: inline In-Reply-To: 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 --IJpNTDwzlM2Ie8A6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat 2018-03-03 11:00:28, Rafael J. Wysocki wrote: > On Sat, Mar 3, 2018 at 10:24 AM, Pavel Machek wrote: > > Hi! > > > > On Sat 2018-03-03 17:27:36, Andrew Worsley wrote: > >> On 3 March 2018 at 16:41, Andrew Worsley wrote: > >> > Basically hangs on resuming after decompressing. The last statement > >> > displayed is "resume: Image successfully loaded" > >> > - I attach a photo as I can't get access to it > >> .... > >> > Bug https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D844788 > >> > > >> > I couldn't get anything from the function keys with this latest kern= el. > >> ... > >> > >> By plugging in a USB keyboard I can get sysrq stuff to work - but > >> stupidly the kernel disables all the useful ones so I will have to > >> compile a new kernel with it set to 1 so I can get some traces. > >> Really annoyed by this default setting, presumably from debian? > >> Wished there was a boot command line option to configure the allowed > > options. > > > > So hibernation is broken on x86-64? > > > > Ideas for debugging: > > > > 1) get that sysrq to work, backtrace where it is hung would be very > > useful. > > > > 2) try v4.15. >=20 > That one works for me FWIW. >=20 > > 3) try without KPTI enabled. Probably noone knows how it interacts > > with that... > > > > (And 4), we should really start doing some periodic testing of hibernat= ion). >=20 > I do that, but the period is not particularly short ... Ok, I've just tested linux-next, and it works ok for me on thinkpad x60. (But that's probably rather different configuration from the macbook). Unfortunately, I could not deduce anything useful from the backtraces. Andrew, could you try v4.15 with KPTI disabled ? Thanks, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --IJpNTDwzlM2Ie8A6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlqbCVgACgkQMOfwapXb+vJ1hQCdEwz17vI/YD41sSxJxB4vYgng VmoAoISdv9kN5zVqgS+f3sjOXtUqr+Im =re5M -----END PGP SIGNATURE----- --IJpNTDwzlM2Ie8A6--