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Subject: [bug#39698] Acknowledgement ([PATCH] file-systems: Set default value
 of the check? field to #f for NFS)
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From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
References: <87d0a9i3il.fsf@gmail.com>
 <handler.39698.B.158221893829402.ack@debbugs.gnu.org>
Date: Thu, 20 Feb 2020 15:29:35 -0500
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To: 39698@debbugs.gnu.org

The patch sent earlier crashes 'guix system reconfigure config.scm'.  It
occurs when attempting to lower the object returned by the fold-services
procedure, e.g.:

--8<---------------cut here---------------start------------->8---
,m (guix scripts system)
scheme@(guix scripts system)> (define os (load* "/path/to/config.scm" %user-module))
scheme@(guix scripts system)> (lower-object os)
$2 = #<procedure 7fd849022e40 at guix/gexp.scm:231:5 (state)>
scheme@(guix scripts system)> ,import (guix monad-repl)
scheme@(guix scripts system)> ,run-in-store $2
While executing meta-command:
Throw to key `srfi-34' with args `(#<condition &gexp-input-error [input:
#<procedure 7fd84d36ac80 at ice-9/eval.scm:333:13 (a)>] 7fd84a760e00>)'.
--8<---------------cut here---------------end--------------->8---

I'm struggling to understand why.  To be continued.