GNU bug report logs - #53712
Guix System hangs after boot with linux-libre 5.15.17

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Leo Famulari <leo <at> famulari.name>
Subject: bug#53712: closed (Re: bug#53712: Guix System hangs after boot
 with linux-libre 5.15.17)
Date: Thu, 24 Feb 2022 15:09:04 +0000

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Your bug report

#53712: Guix System hangs after boot with linux-libre 5.15.17

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 53712 <at> debbugs.gnu.org.

-- 
53712: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=53712
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Leo Famulari <leo <at> famulari.name>
To: Squirrel via Bug reports for GNU Guix <bug-guix <at> gnu.org>
Cc: 53712-done <at> debbugs.gnu.org
Subject: Re: bug#53712: Guix System hangs after boot with linux-libre 5.15.17
Date: Thu, 24 Feb 2022 10:08:38 -0500

On Fri, Feb 11, 2022 at 04:03:03AM +0800, Squirrel via Bug reports for GNU Guix wrote:
> It seems that this is a bug from upstream linux, which may be patched soon.
> Please see https://lore.kernel.org/stable/164448100914.10463.9523338503936670263.kvalo <at> kernel.org/

Good news, this bug has been fixed in the latest group of stable Linux
releases:

5.16.11
5.15.25
5.10.102
5.4.181
4.19.231
4.14.268
4.9.303

For our default release series, 5.15, it was fixed as commit
ddd46059f7d99119b62d44c519df7a79f2e6a515:

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.25

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From: Leo Famulari <leo <at> famulari.name>
To: bug-guix <at> gnu.org
Subject: Guix System hangs after boot with linux-libre 5.15.17
Date: Tue, 1 Feb 2022 15:39:27 -0500

Guix System on x86_64 hangs after boot when reconfigured to use
linux-libre 5.15.17.

The system becomes unresponsive to keyboard input after boot. Sometimes
it reaches the login prompt, sometimes not. Services that take a while
to start, typically finishing after the prompt is displayed, do not
ever start.

I bisected and confirmed that the problem is introduced in Guix Git
commit aad96ed54070 "gnu: linux-libre: Update to 5.15.17."

I could not reproduce the problem with `guix system vm [...]`. Maybe
this means that the problem only occurs after reconfiguring, rather than
a fresh system, or maybe it just doesn't occur at all in a KVM VM.

I'll try with 5.15.18 and the 5.10 series. We are still unable to deploy
linux-libre 5.16 for Guix System users due to this bug:

https://issues.guix.gnu.org/53554

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