bug#41581: Redirecting ‘guix graph’ to bcachefs file causes backtrace(?)

[Tobias Geerinckx-Rice]

Guix,

Redirecting guix's output to a file on a bcachefs file system 
triggers a backtrace.

Of course I don't expect anyone else to be doing this, but does 
anyone have a clue as to what *could* be happening?  Redirection 
to a file in /tmp works fine.

λ findmnt /
TARGET SOURCE    FSTYPE   OPTIONS
/      /dev/sda1 bcachefs 
rw,relatime,compression=lz4,gc_reserve_percent=5,discard

λ guix --help > ~/halpy
Backtrace:
         11 (primitive-load 
         "/home/nckx/.config/guix/current/bin/guix")
In ice-9/eval.scm:
  293:34 10 (_ #<directory (guile-user) 705f90896f00>)
  196:35  9 (_ #<directory (guile-user) 705f90896f00>)
In ice-9/boot-9.scm:
 3297:17  8 (resolve-interface (guix ui) #:select _ #:hide _ 
 #:prefix _ #:renamer _ #:version _)
In ice-9/threads.scm:
   390:8  7 (_ _)
In ice-9/boot-9.scm:
 3223:13  6 (_)
In ice-9/threads.scm:
   390:8  5 (_ _)
In ice-9/boot-9.scm:
 3507:20  4 (_)
  2806:4  3 (save-module-excursion _)
 3527:26  2 (_)
In unknown file:
          1 (primitive-load-path "guix/ui" #<procedure 
          705f90ca97e0 at ice-9/boot-9.scm:3514:37 ()>)
In guix/ui.scm:
 1328:19  0 (_)

guix/ui.scm:1328:19: In procedure terminal-window-size: Operation 
not permitted

Kind regards,

T G-R

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