bug#59884: ‘gui-installed-desktop-os-encrypted’ test intermittent failures

["Ludovic Courtès" <ludo@gnu.org>]

Hi,

The ‘gui-installed-desktop-os-encrypted’ test fails intermittently like
so:

--8<---------------cut here---------------start------------->8---
Dec  7 12:14:01 localhost installer[253]: ^M^[[Kguix system: ^[[1m^[[0mbootloader successfully installed on /dev/vda^M 
Dec  7 12:14:01 localhost installer[253]: command ("guix" "system" "init" "--fallback" "--no-grafts" "--no-substitutes" "/mnt/etc/config.scm" "/mnt") succeeded 
conversation expecting pattern ((quote installation-complete))
Dec  7 12:14:01 localhost shepherd[1]: Service guix-daemon has been stopped. 
Dec  7 12:14:01 localhost shepherd[1]: Service guix-daemon has been started. 
Dec  7 12:14:01 localhost installer[253]: crashing due to uncaught exception: system-error ("umount" "~S: ~A" ("/remove" "Device or resource busy") (16)) 
Dec  7 12:14:01 localhost installer[253]: running form #<newt-form aec220> ("Unexpected problem") with 1 clients 
Dec  7 12:14:01 localhost installer[253]: form #<newt-form aec220> ("Unexpected problem"): client 20 replied #t 
/gnu/store/2bdm6l1j7siky5vadr62l3ns2z8qz75a-shepherd-marionette.scm:1:1718: ERROR:
  1. &pattern-not-matched:
      pattern: ((quote installation-complete))
      sexp: (contents-dialog (title "Unexpected problem") (text "The installer has encountered an unexpected problem. The backtrace is displayed below. You may choose to exit or create a dump archive.") (content "In ./gnu/installer/steps.scm:\n   150:13 19 (run ((substitutes . #f) (network (select-technology . #<<technology> name: \"Wired\" type: \"ethernet\" powered?: #t connected?: #t>) (power-technology . #<unspecified>) (# . #<<???>) ???) ???) ???)\n   150:13 18 (run ((user #<<user> name: \"root\" real-name: \"\" group: \"users\" password: <secret> home-directory: \"/root\"> #<<user> name: \"alice\" real-name: \"Alice\" group: \"users\" password: <s???> ???) ???) ???)\n   150:13 17 (run ((services #<<system-service> name: \"GNOME\" type: desktop recommended?: #f snippet: ((service gnome-desktop-service-type)) packages: ()> #<<system-service> name: \"Xfce\" ty???> ???) ???) ???)\n   148:23 16 (run ((partition #<<user-partition> name: #f type: normal file-name: \"/dev/vda1\" disk-file-name: \"/dev/vda\" crypt-label: #f crypt-password: #f fs-type: ext4 bootable?: #t esp?:???> ???) ???) ???)\nIn ./gnu/installer/newt/final.scm:\n   132:11 15 (run-final-page ((partition #<<user-partition> name: #f type: normal file-name: \"/dev/vda1\" disk-file-name: \"/dev/vda\" crypt-label: #f crypt-password: #f fs-type: ext4 bootable???> ???) ???) ???)\n   105:21 14 (run-install-shell \"en_HK.utf8\" #:users _)\nIn ./gnu/installer/final.scm:\n    191:5 13 (install-system \"en_HK.utf8\" #:users _)\n   113:13 12 (call-with-mnt-container #<procedure 7f0e0b7d2f00 at ./gnu/installer/final.scm:192:7 ()>)\nIn gnu/build/linux-container.scm:\n   265:16 11 (run-container _ _ (mnt) _ #<procedure 7f0e0b7d2f00 at ./gnu/installer/final.scm:192:7 ()> #:guest-uid _ #:guest-gid _)\nIn ./gnu/installer/final.scm:\n   222:13 10 (_)\nIn gnu/build/install.scm:\n    290:5  9 (unmount-cow-store \"/mnt\" \"/tmp/guix-inst\")\nIn guix/build/syscalls.scm:\n   600:10  8 (_ _ _ #:update-mtab? _)\nIn ice-9/boot-9.scm:\n  1685:16  7 (raise-exception _ #:continuable? _)\n  1780:13  6 (_ #<&compound-exception components: (#<&external-error> #<&origin origin: \"umount\"> #<&message message: \"~S: ~A\"> #<&irritants irritants: (\"/remove\" \"Device or resource busy\")> #<&ex???>)\nIn ice-9/eval.scm:\n    619:8  5 (_ #(#(#(#<directory (guile-user) 7f0e0cee8c80>) system-error (\"umount\" \"~S: ~A\" (\"/remove\" \"Device or resource busy\") (16))) #<variable 7f0e08731270 value: #<unspecified>> #<varia???> ???))\n   626:19  4 (_ #(#(#(#<directory (guile-user) 7f0e0cee8c80>) system-error (\"umount\" \"~S: ~A\" (\"/remove\" \"Device or resource busy\") (16))) #<variable 7f0e08731270 value: #<unspecified>> #<varia???> ???))\nIn ./gnu/installer/dump.scm:\n     58:4  3 (prepare-dump system-error (\"umount\" \"~S: ~A\" (\"/remove\" \"Device or resource busy\") (16)) #:result _)\nIn ice-9/ports.scm:\n   433:17  2 (call-with-output-file _ _ #:binary _ #:encoding _)\nIn ./gnu/installer/dump.scm:\n    60:27  1 (_ #<output: installer-backtrace 7>)\nIn unknown file:\n           0 (make-stack #t)\n./gnu/installer/dump.scm:62:36: In procedure umount: \"/remove\": Device or resource busy\n"))
Dec  7 12:14:01 localhost installer[198]: unmounting "/mnt/" 

Backtrace:
           2 (primitive-load "/gnu/store/s6a8v2l4387bgsp0w0pcbg4wjsy?")
In ice-9/eval.scm:
   191:35  1 (_ #f)
    619:8  0 (_ #(#<directory (guile-user) 7fffeffcfc80> #<variabl?>))

ice-9/eval.scm:619:8: Throw to key `marionette-eval-failure' with args `((quote (complete-installation installer-socket)))'.
builder for `/gnu/store/wgw64jfyqrrg27afqmlj70a22d1mr5mv-installation.drv' failed with exit code 1
@ build-failed /gnu/store/wgw64jfyqrrg27afqmlj70a22d1mr5mv-installation.drv - 1 builder for `/gnu/store/wgw64jfyqrrg27afqmlj70a22d1mr5mv-installation.drv' failed with exit code 1
cannot build derivation `/gnu/store/dr20sisps9rlpbq0vfzncdiyymrd5r0i-gui-installed-desktop-os-encrypted.drv': 1 dependencies couldn't be built
--8<---------------cut here---------------end--------------->8---

(From <https://ci.guix.gnu.org/build/224930/details>.)

Does that ring a bell, Mathieu?

Thanks,
Ludo’.