[Bug 2130843] Re: SSH sessions blocked on unavailable automounts by default in Ubuntu 25.10

[Launchpad Bug Tracker]

This bug was fixed in the package rust-coreutils - 0.6.0-0ubuntu1

---------------
rust-coreutils (0.6.0-0ubuntu1) resolute; urgency=medium

  * New usptream version (LP: #2139697)
  * Fixes:
    - comm does not work as expected with process substitution (LP: #2138315)
    - git: FTBFS in Resolute (LP: #2138217)
    - tee with multiple --append fails in rust corutils (LP: #2134578)
    - echo 1 | sort | head -n0: sort: write failed: 'standard output':
      Broken pipe (LP: #2133156)
    - env: Rust unwrap with UTF-8 symbols in environment variables
      (LP: #2132941)
    - "du" is double-counting hard links when multiple arguments specified
      (LP: #2132245)
    - dd: O_DIRECT partial block writes fail (LP: #2132150)
    - date does not support localized output (LP: #2130859)
    - SSH sessions blocked on unavailable automounts by default in Ubuntu 25.10
      (LP: #2130843)
    - rust-coreutils 'shred' refuses to write to a device (LP: #2130396)
    - rust-coreutils stats handling breaks wireguard's wg-quick (LP: #2127851)
    - rust-coreutils:dd: Broken pipe (LP: #2125943)
    - /usr/bin/sort: -k option does not behave as GNU's sort (LP: #2125504)
    - uutils wc crashed with SIGABRT on logout (LP: #2122166)
    - who, pinky are empty - need to talk to logind (LP: #2117771)
  * Drop applied patches:
    - use-mem-zeroed.diff: The timespec C-binding struct has been replaced
      by the safe abstraction nix::sys::time::TimeSpec. Padding should now
      be handled internally for 32-bit architectures.
  * Refresh patches:
    - Tweak-release-build-profile.patch
    - build-stty.patch
    - dd-ensure-full-writes.patch
    - fix-prefix.diff
    - glibc-2.42.patch
    - require-utilities-to-be-invoked-using-matching-path.patch
    - use-l10n-translations-in-makefile.patch
    - workspace-exclude.patch
  * Add patch:
    - prevent-stty-termios2-on-ppc64el.patch: The termios2 header is not
      always available or exposed on ppc64el systems. Use the standard termios
      interface instead to avoid build failures on such systems.
  * Skip failing tests:
    (s390x)
    - test_env::test_simulation_of_terminal_for_stdout_only
    - test_nohup::test_nohup_stderr_to_stdout
    - test_nohup::test_nohup_with_pseudo_terminal_emulation_on_stdin_stdout_stderr_get_replaced
    - test_touch::test_touch_changes_time_of_file_in_stdout
    (amd64v3)
    - test_dd::test_stdin_stdout_skip_w_multiplier
  * Re-enable previously failing tests:
    - test_chown::test_chown_only_group_id_nonexistent_group
    - test_chown::test_chown_only_user_id_nonexistent_user
    - test_expr::test_long_input
    - test_factor::test_parallel
    - test_install::test_install_and_strip
    - test_install::test_install_and_strip_with_program
    - test_ls::test_device_number
    - test_ls::test_localized_possible_values
    - test_od::test_od_options_after_filename
    - test_od::test_suppress_duplicates
    - test_sort::
      + test_argument_suggestion
      + test_clap_localization_help_message
      + test_clap_localization_invalid_value
      + test_clap_localization_unknown_argument
      + test_error_colors_disabled
      + test_error_colors_enabled
      + test_french_translations
      + test_help_colors_disabled
      + test_help_colors_enabled
    - test_stat::
      + test_mount_point_basic
      + test_mount_point_combined_with_other_specifiers
      + test_multi_files
      + test_normal_format
      + test_printf
      + test_symlinks
      + test_terse_fs_format
    - test_error_messages_french_translation
    - test_french_colored_error_messages
    - test_help_messages_french_translation
    - util_invalid_name_invalid_command

 -- Simon Johnsson <simon.johnsson at canonical.com>  Tue, 03 Feb 2026
17:53:04 +0100

** Changed in: rust-coreutils (Ubuntu)
       Status: Triaged => Fix Released

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https://bugs.launchpad.net/bugs/2130843

Title:
  SSH sessions blocked on unavailable automounts by default in Ubuntu
  25.10

Status in rust-coreutils:
  Fix Released
Status in rust-coreutils package in Ubuntu:
  Fix Released

Bug description:
  Since upgrading to 25.10, incoming ssh sessions hang when unavailable
  systemd automounts, local or remote, are present. The creation of the
  ssh session hangs from half a minute to several minutes depending on
  how many automounts it tries. Stopping the unavailable automounts
  fixes the problem. This did not happen prior to 25.10. Is this a bug
  or is there a new and preferred way of defining automounts in fstab so
  that PAM or systemd does not block incoming ssh sessions by trying to
  mount unavailable automounts?

  Here are 2 examples of fstab entries that are subsequently read by
  systemd and turned into automounts. If the device is not available
  then incoming ssh connections hang. This syntax has worked for many
  years.

  servername.local:/volume1/name /mnt/servername/name nfs
  x-systemd.automount,_netdev,x-systemd.device-
  timeout=10,nfsvers=3,noauto,user,rw,exec 0 0

  /dev/disk/by-label/corsair /media/myname/corsair auto
  x-systemd.automount,nosuid,nodev,nofail,x-gvfs-show,x-gvfs-
  name=corsair,user 0 0

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