From mboxrd@z Thu Jan 1 00:00:00 1970 From: "pelzflorian (Florian Pelz)" Subject: Re: KMScon vs. AMD Radeon Date: Tue, 2 Apr 2019 13:42:38 +0200 Message-ID: <20190402114238.hscos22cyv7mxqf3@pelzflorian.localdomain> References: <20190328000935.qnhrbamajj47vibu@pelzflorian.localdomain> <87h8bl8xrb.fsf_-_@gnu.org> <875zs1k5ac.fsf@gmail.com> <20190329180022.pqzdrzcjrbm3z5ub@pelzflorian.localdomain> <871s2o6cyt.fsf@gmail.com> <87imw0u558.fsf@ambrevar.xyz> <20190330152211.2ugzdbvp2hjy3lvl@pelzflorian.localdomain> <871s2lkesq.fsf@gmail.com> <87a7h9jxzd.fsf@gnu.org> <20190402092605.rmdetaxxwli4wb3c@pelzflorian.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([209.51.188.92]:42048) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hBHoQ-0008Q3-9l for guix-devel@gnu.org; Tue, 02 Apr 2019 07:42:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hBHoP-0002xe-BR for guix-devel@gnu.org; Tue, 02 Apr 2019 07:42:42 -0400 Content-Disposition: inline In-Reply-To: <20190402092605.rmdetaxxwli4wb3c@pelzflorian.localdomain> List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Ludovic =?utf-8?Q?Court=C3=A8s?= Cc: Guix-devel , Mathieu Othacehe On Tue, Apr 02, 2019 at 11:26:05AM +0200, pelzflorian (Florian Pelz) wrot= e: > On Mon, Apr 01, 2019 at 10:01:58PM +0200, Ludovic Court=C3=A8s wrote: > > Hi Mathieu, > >=20 > > Mathieu Othacehe skribis: > >=20 > > > Here's a patch that fallback to mingetty if kmscon is not supported= . I > > > don't have a machine with AMD GPU for testing so if Florian or Pier= re > > > could test the patch that would be very helpful :) > >=20 > > That was fast, thanks! > >=20 > > We=E2=80=99ll wait for your feedback Florian & Pierre. :-) > >=20 >=20 > I applied Mathieu=E2=80=99s patch to current Guix, but the kernel panic= s on > QEMU and on non-AMD Radeon hardware. I have not tried on AMD Radeon > yet. I will first try again an older Guix without the patch but it > will take a few hours. >=20 So guix pulling the old Guix commit 37099f58442419ebd847616ffe21b19c4b655a41 without the patch boots fine on QEMU and my grandma=E2=80=99s 10-years-old non-AMD BIOS laptop. The more current commit 0e558640361b6ab4aac0f424cb587b21a642bab8 without the patch runs into a Guile prompt because of an error in resolve-variable of something with setuid-binaries on grandma=E2=80=99s l= aptop and into a different error and a Guile prompt on QEMU with [ 9.426604] random: dbus-uuidgen: uninitialized urandom read (12 bytes = read) [ 9.518845] attempt to access beyond end of device [ 9.519037] sda: rw=3D524288, want=3D3194596, limit=3D3184000 ERROR: In procedure primitive-load: In procedure fport_read: Input/output error 0e558640361b6ab4aac0f424cb587b21a642bab8 with the AMD Radeon patch runs into a kernel panic on QEMU and grandma=E2=80=99s laptop. I have no= t tested AMD Radeon. Regards, Florian