bug#40125: Problem with guix offload: Remote channel closed

[Ludovic Courtès]

Hi Mikael,

Mikael Djurfeldt <address@hidden> skribis:

> On Sun, Mar 22, 2020 at 9:46 PM Ludovic Courtès <address@hidden> wrote:
>
>> Mikael Djurfeldt <address@hidden> skribis:
>>
>> We’re missing a tiny bit.  :-)  Could you run strace with ‘-s 3000’ or
>> similar so that it doesn’t truncate it?
>>
>> (The “strange characters” are Unicode HORIZONTAL ELLIPSIS.)
>>
>
> Ah... :)
>
> Here's a larger chunk of backtrace:
>
> 19530 read(20, "Backtrace:\n          13 (apply-smob/1 #<catch-closure
> 563a9e2f92a0>)\nIn ice-9/boot-9.scm:\n    718:2 12 (call-with-prompt
> (\"prompt\") #<procedure 563a9e3167e0 \342\200\246> \342\200\246)\nIn
> ice-9/eval.scm:\n    619:8 11 (_ #(#(#<directory (guile-user)
> 563a9e39a750>)))\nIn ice-9/command-line.scm:\n   181:18 10 (_ #<input:
> string 563a9e3a8bd0>)\nIn unknown file:\n           9 (eval (begin
> (use-modules (guix) (srfi srfi-34) # #) \342\200\246) #)\nIn
> ice-9/eval.scm:\n   721:20  8 (primitive-eval (begin (use-modules (guix)
> (srfi \342\200\246) \342\200\246) \342\200\246))\nIn ice-9/psyntax.scm:\n
>  1241:36  7 (expand-top-sequence ((begin (use-modules (guix) \342\200\246)
> \342\200\246)) \342\200\246)\n  1194:19  6 (parse _ ((\"placeholder\"
> placeholder)) ((top) #(# # \342\200\246)) \342\200\246)\n  1233:19  5
> (parse _ ((\"placeholder\" placeholder)) ((top) #(# # \342\200\246))
> \342\200\246)\n   285:10  4 (parse _ ((\"placeholder\" placeholder)) (()) _
> c&e (eval) \342\200\246)\nIn ice-9/boot-9.scm:\n  3389:20  3
> (process-use-modules _)\n   222:17  2 (map1 (((guix)) ((srfi srfi-34))
> ((rnrs io ports)) (#)))\n  3390:31  1 (_ ((guix)))\n   2809:6  0
> (resolve-interface (guix) #:select _ #:hide _ #:prefix _
> \342\200\246)\n\nice-9/boot-9.scm:2809:6: In procedure
> resolve-interface:\nno code for module (guix)\n", 16384) = 1150

Thanks!  Commit 8f53d73493a2949e2db28cd7d689a690b2d9479a improves error
reporting in this case.

This can be tested by running “guix copy --to=HOST coreutils” for a host
where Guix modules are missing.

Thanks,
Ludo’.