From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark H Weaver <mhw@netris.org>
Subject: bug#22548: Kernel panic after system reconfiguration
Date: Wed, 03 Feb 2016 17:14:02 -0500
Message-ID: <87lh71qw5x.fsf@netris.org>
References: <56B22F15.8050207@fripost.org> <56B24481.40009@fripost.org>
	<56B26C33.1010101@fripost.org>
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To: Albin <albin@fripost.org>
Cc: 22548@debbugs.gnu.org

Albin <albin@fripost.org> writes:

> Hi again,
>
> I got rid of the kernel panic by removing the following from the config
> and reconfiguring (as suggested by Mark Weaver):
>
>> (swap-devices '("/swapfile"))
>
> It would be nice to be able to enable swap again though. On my system it
> needs to be done with a swap file.

I suspect this never worked, but that before the error was silently
ignored.  In my case, I had:

  (swap-devices '("/dev/disk/by-label/jojen-swap"))

and /dev/disk went away at some point due to another problem.  For a
long time, I simply had no swap.  With the dmd -> shepherd transition,
it started causing a fatal error during boot, leading to a kernel panic.
Unfortunately, the error message scrolled off the screen very quickly,
obscured by a useless kernel backtrace.

      Mark