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* bug#30021: system build: unable to parse multi-line device-mapping
@ 2018-01-08  3:24 Vagrant Cascadian
  2018-01-08  5:46 ` Mark H Weaver
  2018-01-08  5:49 ` Mark H Weaver
  0 siblings, 2 replies; 3+ messages in thread
From: Vagrant Cascadian @ 2018-01-08  3:24 UTC (permalink / raw)
  To: 30021

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After several weeks of not using a machine, and updating guix to

guix (GNU Guix) c04ffadbed7412545555b8be6b78f23eed150d26


Running "guix build system /etc/config.scm" resulted in:

  guix system: error: failed to load '/etc/config.scm':
  /etc/config.scm:23:9: /etc/config.scm:23:9: In procedure allocate-struct: Wrong type argument in\
  position 2: 3


This roughly corresponded to my mapped device section in
/etc/config.scm:

  (mapped-devices
   (list (mapped-device
          (source (uuid "c106e43e-0479-4135-a1a8-b5221312bf74"))
          (target "cryptic")
          (type luks-device-mapping))))

Moving it all into a single line worked around the issue, but is a good
deal harder to read:

  (mapped-devices (list (mapped-device (source (uuid "c106e43e-0479-4135-a1a8-b5221312bf74")) (target "cryptic") (type luks-device-mapping))))


My guess is it has something to do with some commits relating to
validating mapped devices:

  42ff7d3be642d66ba567f64882a1f2301b1a7bd9
  mapped-devices: 'luks-device-mapping' checks its source device.

  4ca90ff5976434a2b6e758df38df54387ae70c1b 
  mapped-devices: Add 'location' and 'check' fields.


Hope that helps!

live well,
  vagrant

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^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#30021: system build: unable to parse multi-line device-mapping
  2018-01-08  3:24 bug#30021: system build: unable to parse multi-line device-mapping Vagrant Cascadian
@ 2018-01-08  5:46 ` Mark H Weaver
  2018-01-08  5:49 ` Mark H Weaver
  1 sibling, 0 replies; 3+ messages in thread
From: Mark H Weaver @ 2018-01-08  5:46 UTC (permalink / raw)
  To: Vagrant Cascadian; +Cc: 30021

Hi,

Vagrant Cascadian <vagrant@debian.org> writes:

> After several weeks of not using a machine, and updating guix to
>
> guix (GNU Guix) c04ffadbed7412545555b8be6b78f23eed150d26
>
>
> Running "guix build system /etc/config.scm" resulted in:
>
>   guix system: error: failed to load '/etc/config.scm':
>   /etc/config.scm:23:9: /etc/config.scm:23:9: In procedure allocate-struct: Wrong type argument in\
>   position 2: 3
>
>
> This roughly corresponded to my mapped device section in
> /etc/config.scm:
>
>   (mapped-devices
>    (list (mapped-device
>           (source (uuid "c106e43e-0479-4135-a1a8-b5221312bf74"))
>           (target "cryptic")
>           (type luks-device-mapping))))

I ran into the same problem.

> Moving it all into a single line worked around the issue, but is a good
> deal harder to read:
>
>   (mapped-devices (list (mapped-device (source (uuid "c106e43e-0479-4135-a1a8-b5221312bf74")) (target "cryptic") (type luks-device-mapping))))
>
>
> My guess is it has something to do with some commits relating to
> validating mapped devices:
>
>   42ff7d3be642d66ba567f64882a1f2301b1a7bd9
>   mapped-devices: 'luks-device-mapping' checks its source device.
>
>   4ca90ff5976434a2b6e758df38df54387ae70c1b 
>   mapped-devices: Add 'location' and 'check' fields.

You're right that it has to do with those commits, but the work around
simply involves forcing a recompilation of /etc/config.scm.  *Any*
change to config.scm would have fixed the problem, or alternatively you
could have deleted ~/.cache/guile/ccache.  In any case, you can now
reformat the mapped device section as it was before, and it will
continue to work.

What happened here is that commit 4ca90ff5 added two fields to the
<mapped-device> record type.  For efficiency reasons, the
'mapped-device' record constructor (used in /etc/config.scm) is an
*inlined* procedure.  Unfortunately this means that the compiled version
of /etc/config.scm in ~/.cache/guile/ccache was still creating the old
record type.  Guile is not able to detect this case, so the cache must
be manually invalidated somehow.

      Mark

^ permalink raw reply	[flat|nested] 3+ messages in thread

* bug#30021: system build: unable to parse multi-line device-mapping
  2018-01-08  3:24 bug#30021: system build: unable to parse multi-line device-mapping Vagrant Cascadian
  2018-01-08  5:46 ` Mark H Weaver
@ 2018-01-08  5:49 ` Mark H Weaver
  1 sibling, 0 replies; 3+ messages in thread
From: Mark H Weaver @ 2018-01-08  5:49 UTC (permalink / raw)
  To: Vagrant Cascadian; +Cc: 30021-done

Vagrant Cascadian <vagrant@debian.org> writes:

> Running "guix build system /etc/config.scm" resulted in:
>
>   guix system: error: failed to load '/etc/config.scm':
>   /etc/config.scm:23:9: /etc/config.scm:23:9: In procedure allocate-struct: Wrong type argument in\
>   position 2: 3

I forgot to mention that there's already a bug filed for this issue:

  https://bugs.gnu.org/29881

I'm closing this bug now.

     Thanks,
       Mark

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2018-01-08  5:50 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2018-01-08  3:24 bug#30021: system build: unable to parse multi-line device-mapping Vagrant Cascadian
2018-01-08  5:46 ` Mark H Weaver
2018-01-08  5:49 ` Mark H Weaver

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