GNU bug report logs - #77624
Bisected regression: guix system vm fails with --share option

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Owen T. Heisler" <writer <at> owenh.net>
To: bug-guix <at> gnu.org
Subject: Bisected regression: guix system vm fails with --share option
Date: Mon, 7 Apr 2025 15:00:54 -0500

Hello,

Since commit 9939677d15592acb8663162af8eab3d33f4831db, which changed
handling of Qemu options in `/gnu/system/vm.scm`, `guix system vm` fails
if the `--share` option is used.

```console
$ mkdir -p /tmp/share
$ guix time-machine --commit=9939677d15592acb8663162af8eab3d33f4831db --
system vm --share=/tmp/share /tmp/config.scm

Backtrace:
          17 (primitive-load "/home/user/.cache/guix/inferiors/oljja…")
In guix/ui.scm:
   2332:7 16 (run-guix . _)
  2295:10 15 (run-guix-command _ . _)
In ice-9/boot-9.scm:
  1752:10 14 (with-exception-handler _ _ #:unwind? _ # _)
In guix/status.scm:
    859:3 13 (_)
    839:4 12 (call-with-status-report _ _)
In guix/scripts/system.scm:
   1332:4 11 (_)
In ice-9/boot-9.scm:
  1752:10 10 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
   690:37  9 (thunk)
   1331:8  8 (call-with-build-handler #<procedure 7fae0ff885d0 at g…> …)
  2212:25  7 (run-with-store #<store-connection 256.99 7fae0ff61910> …)
In guix/scripts/system.scm:
    859:2  6 (_ _)
    739:8  5 (_ #<store-connection 256.99 7fae0ff61910>)
In gnu/system/vm.scm:
   309:17  4 (system-qemu-image/shared-store-script _ #:system _ # _ …)
    235:8  3 (common-qemu-options _ ("/gnu/store" "/tmp/share") # _ # …)
In unknown file:
           2 (concatenate (#<gexp ("-virtfs" (format #f "local,pa…> …))
In ice-9/boot-9.scm:
  1685:16  1 (raise-exception _ #:continuable? _)
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
In procedure append: Wrong type argument in position 1 (expecting empty
list): #<gexp ("-virtfs" (format #f
"local,path=~a,security_model=none,mount_tag=~a" #<gexp-input
"/gnu/store":out> #<gexp-input "TAGjoptajej2oynju6yvboauz7pl6uj":out>))
gnu/system/vm.scm:221:4 7fae13a4d630>
```

Using the following `config.scm`:

```scm
(use-modules (gnu bootloader))
(use-modules (gnu bootloader grub))
(use-modules (gnu system file-systems))

(operating-system
 (bootloader (bootloader-configuration
              (bootloader grub-bootloader)
              (targets '("/dev/vda"))
              (terminal-inputs '(console serial))
              (terminal-outputs '(console serial))
              (timeout 1)))
 (file-systems (cons (file-system
                      (mount-point "/")
                      (device "/dev/vda1")
                      (type "ext4")) %base-file-systems))
 (host-name "guix")
 (kernel-arguments (cons "console=ttyS0" %default-kernel-arguments))
 (locale "en_US.utf8"))
```

Thanks,
Owen

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