bug#22274: GuixSD resets hardware clock (on Lenovo x200 with libreboot)

[ludo@gnu.org (Ludovic Courtès)]

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

> Christopher Allan Webber <cwebber@dustycloud.org> writes:
>
>> From e60db83ffff23c57ec5c44de7c99cee8e4e353ff Mon Sep 17 00:00:00 2001
>> From: Christopher Allan Webber <cwebber@dustycloud.org>
>> Date: Sun, 17 Jan 2016 20:34:25 -0800
>> Subject: [PATCH] gnu: Add linux-libre-4.2.5
>>
>> This older version of linux-libre is being added because it was found
>> that newer versions (or at least 4.3.3) of linux-libre were not reading
>> the hardware clock on (at least Libreboot-enabled) Thinkpad x200
>> machines.
>>
>> * gnu/linux.scm (linux-libre-4.2.5): New variable.
>
> I would say that the variable should be named 'linux-libre-4.2', which
> would always be bound to the latest 4.2.x.  However, there's another
> problem: the 4.2 branch is no longer supported upstream, so it will no
> longer receive security updates and other important fixes.
>
> I suggest that we instead add linux-libre-4.1, which is still supported
> upstream and is designated as an LTS branch.  Would that be okay?

If it works for Christopher, that’s a good idea.

> Another issue is that the kernel config for 4.3 is being used here.  I
> guess maybe that's working well enough in this case, but really our
> kernel packages should be refactored somewhat to make this nicer.

Yeah, though that’s probably beyond the scope of this particular issue.

> One more thing: Francis Rowe told me that the coreboot developers have
> determined that this is a bug on their side, and libreboot will
> cherry-pick the fix soon, if it hasn't already.

Interesting.  Any links to the bug report or commit?

Thanks for your feedback!

Ludo’.