From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#25231: Linux-libre 4.9 fails to load modules on i686 (release
	blocker!)
Date: Mon, 19 Dec 2016 21:41:15 +0100
Message-ID: <87r3533b4k.fsf@gnu.org>
References: <87tw9z3mtt.fsf@gnu.org> <87k2av3f1l.fsf@netris.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:55461)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1cJ4l4-0002pX-Kc
	for bug-guix@gnu.org; Mon, 19 Dec 2016 15:42:07 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1cJ4l0-0003Sd-BO
	for bug-guix@gnu.org; Mon, 19 Dec 2016 15:42:06 -0500
Received: from debbugs.gnu.org ([208.118.235.43]:60829)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
	id 1cJ4l0-0003SP-7i
	for bug-guix@gnu.org; Mon, 19 Dec 2016 15:42:02 -0500
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1cJ4kz-0008Rt-W9
	for bug-guix@gnu.org; Mon, 19 Dec 2016 15:42:02 -0500
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-Message-ID: <handler.25231.B25231.148218009032433@debbugs.gnu.org>
In-Reply-To: <87k2av3f1l.fsf@netris.org> (Mark H. Weaver's message of "Mon, 19
	Dec 2016 14:16:38 -0500")
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-guix/>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: "bug-Guix" <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
To: Mark H Weaver <mhw@netris.org>
Cc: 25231@debbugs.gnu.org

Mark H Weaver <mhw@netris.org> skribis:

> ludo@gnu.org (Ludovic Court=C3=A8s) writes:
>
>> Linux-libre 4.9.0 triggers this problem on i686 (quoting
>> <https://hydra.gnu.org/build/1713833/nixlog/21/raw>):
>>
>> loading kernel modules...
>> [    6.085552] libahci: disagrees about version of symbol mcount
>> [    6.085978] libahci: Unknown symbol mcount (err -22)
>> ./gnu/build/linux-modules.scm:195:6: In procedure load-linux-module*:
>> ./gnu/build/linux-modules.scm:195:6: In procedure load-linux-module: Inv=
alid argument
>>
>> With 4.8.14, things went well:
>> <https://hydra.gnu.org/build/1689159/log/raw>.
>>
>> To reproduce, run, for instance:
>>
>>   ./pre-inst-env guix system vm gnu/system/install.scm -s i686-linux
>>
>> <https://patchwork.kernel.org/patch/9380911/> suggests this might be a
>> 4.9 bug.
>>
>> Mark, any ideas?  Did anyone get 4.9 running on i686?
>
> Not that I know of.  I didn't test it on i686.  Here's another relevant
> post:
>
>   https://lkml.org/lkml/2016/10/27/124
>
> I see that there are some commits addressing this issue in Linus' git
> repository, but it's not clear to me which set of commits to include, or
> how they depend on each other.  It's probably best to wait for 4.9.1.

Yeah.

>> If not, I suggest reverting the 4.8.14 =E2=86=92 4.9 upgrade for the rel=
ease.
>
> Sounds good.  On 'master', I just reverted the 4.9 upgrade, followed
> immediately by an upgrade to 4.8.15.  Feel free to cherry-pick to the
> version-0.12.0 branch, but make sure to get both of them.

Awesome, thanks for the fast reply!

Ricardo: I=E2=80=99ll let you cherry-pick these two commits, sounds good?
(There=E2=80=99s a bunch of commits you may want to take from master anyway=
.)

Ludo=E2=80=99.