홈 디렉터리에서 cargo 명령어 hanging

[slowmoyang]

$ slowmoyang@lugia ~> pwd
/users/hep/slowmoyang
$ slowmoyang@lugia ~> which cargo
/users/hep/slowmoyang/.cargo/bin/cargo
$ slowmoyang@lugia ~> cd /tmp
$ slowmoyang@lugia /tmp> time cargo -V
cargo 1.94.1 (29ea6fb6a 2026-03-24)

________________________________________________________
Executed in   15.79 millis    fish           external
   usr time   11.27 millis  250.00 micros   11.02 millis
   sys time    3.99 millis  318.00 micros    3.67 millis

$ slowmoyang@lugia /tmp> cd ~/
$ slowmoyang@lugia ~> time cargo -V # --> hanging

[jhgoh]

jhgoh@lugia:~$ ls /users/hep/slowmoyang/.cargo/bin/ -alh
total 60M
drwxr-xr-x 2 slowmoyang users 4.0K Apr 10 14:21 .
drwxr-xr-x 4 slowmoyang users 4.0K Apr 10 14:19 ..
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 cargo -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 cargo-clippy -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 cargo-fmt -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 cargo-miri -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 clippy-driver -> rustup
-rwxr-xr-x 1 slowmoyang users  20M Jul 23  2025 .nfs000000001cb6000500001453
-rwxr-xr-x 1 slowmoyang users  20M Apr 10 13:31 .nfs000000001cb6001300001455
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rls -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rust-analyzer -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rustc -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rustdoc -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rustfmt -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rust-gdb -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rust-gdbgui -> rustup
lrwxrwxrwx 1 slowmoyang users    6 Apr 10 14:21 rust-lldb -> rustup
-rwxr-xr-x 1 slowmoyang users  20M Apr 10 14:21 rustup

[jhgoh]

jhgoh@hep:x$ /users/hep/slowmoyang/.cargo/bin/cargo
error: rustup could not choose a version of cargo to run, because one wasn't specified explicitly, and no default is configured.
help: run 'rustup default stable' to download the latest stable release of Rust and set it as your default toolchain.
jhgoh@hep:x$ cd ..
jhgoh@hep:~$ /users/hep/slowmoyang/.cargo/bin/cargo
error: rustup could not choose a version of cargo to run, because one wasn't specified explicitly, and no default is configured.
help: run 'rustup default stable' to download the latest stable release of Rust and set it as your default toolchain.
jhgoh@hep:~$ pwd
/users/hep/jhgoh
jhgoh@hep:~$ cargo
Command 'cargo' not found, but can be installed with:
sudo snap install rustup  # version 1.28.2, or
sudo apt  install cargo   # version 1.75.0+dfsg0ubuntu1~bpo0-0ubuntu0.22.04.1
See 'snap info rustup' for additional versions.

[jhgoh]

jhgoh@lugia:~$ rustup --help
rustup 1.29.0 (28d1352db 2026-03-05)

The Rust toolchain installer

Usage: rustup[EXE] [OPTIONS] [+toolchain] [COMMAND]

Commands:
  install      Install or update the given toolchains, or by default the active toolchain
  uninstall    Uninstall the given toolchains
  toolchain    Install, uninstall, or list toolchains
  default      Set the default toolchain
  show         Show the active and installed toolchains or profiles
  update       Update Rust toolchains and rustup
  check        Check for updates to Rust toolchains and rustup
  target       Modify a toolchain's supported targets
  component    Modify a toolchain's installed components
  override     Modify toolchain overrides for directories
  run          Run a command with an environment configured for a given toolchain
  which        Display which binary will be run for a given command
  doc          Open the documentation for the current toolchain
  man          View the man page for a given command
  self         Modify the rustup installation
  set          Alter rustup settings
  completions  Generate tab-completion scripts for your shell
  help         Print this message or the help of the given subcommand(s)

Arguments:
  [+toolchain]  Release channel (e.g. +stable) or custom toolchain to set override

Options:
  -v, --verbose  Set log level to 'DEBUG' if 'RUSTUP_LOG' is unset
  -q, --quiet    Disable progress output, set log level to 'WARN' if 'RUSTUP_LOG' is unset
  -h, --help     Print help
  -V, --version  Print version

Discussion:
  Rustup installs The Rust Programming Language from the official
  release channels, enabling you to easily switch between stable,
  beta, and nightly compilers and keep them updated. It makes
  cross-compiling simpler with binary builds of the standard library
  for common platforms.

  If you are new to Rust consider running `rustup doc --book` to
  learn Rust.

Common commands:

  Update Rust toolchains and rustup

    $ rustup update
    
  Install the current stable release of Rust for your host platform

    $ rustup toolchain install stable
jhgoh@lugia:~$ cargo --help
^C
jhgoh@lugia:~$ 

[jhgoh]

@slowmoyang lugia아니고 hep에서는 어떤가요? 이게 nfs 문제인지 다른 문제인지 구분해서 보게요. 포트넘버 바꿔서 ssh 접속 해서 확인 해 보세요.

[slowmoyang]

cargo -V 한 후 ps 해보니

$ ps aux | grep slow | grep cargo
slowmoy+ 3645452  0.0  0.0 563968 11744 pts/1    Dl+  14:14   0:00 cargo -V

$ cat /proc/3645452/wchan

autofs_wait

# cat /proc/3645452/stack
[<0>] autofs_wait+0x1ca/0x720 [autofs4]
[<0>] autofs_mount_wait+0x4b/0x100 [autofs4]
[<0>] autofs_d_automount+0xe0/0x210 [autofs4]
[<0>] __traverse_mounts+0x8f/0x230
[<0>] step_into+0x27f/0x430
[<0>] open_last_lookups+0xba/0x3f0
[<0>] path_openat+0x8d/0x2b0
[<0>] do_filp_open+0xb2/0x160
[<0>] do_sys_openat2+0x9f/0x160
[<0>] __x64_sys_openat+0x55/0x90
[<0>] x64_sys_call+0x1a55/0x1fa0
[<0>] do_syscall_64+0x56/0xb0
[<0>] entry_SYSCALL_64_after_hwframe+0x6c/0xd6

[slowmoyang]

@jhgoh

@slowmoyang lugia아니고 hep에서는 어떤가요? 이게 nfs 문제인지 다른 문제인지 구분해서 보게요. 포트넘버 바꿔서 ssh 접속 해서 확인 해 보세요.

hep server에서는 잘 되네요. lugia와 lapras에서는 잘 안됩니다. nfs 문제가 맞는 것 같습니다. 재시작해볼까요?

[slowmoyang]

# journalctl -u autofs -b --no-pager | tail -n 100 | grep Apr
Apr 09 14:38:35 lugia.lo systemd[1]: Reloading Automounts filesystems on demand...
Apr 09 14:38:35 lugia.lo systemd[1]: Reloaded Automounts filesystems on demand.
Apr 09 14:38:35 lugia.lo automount[3834]: mount_autofs_indirect: failed to read map for /users
Apr 09 14:38:35 lugia.lo automount[3834]: handle_mounts: mount of /users failed!
Apr 09 14:38:35 lugia.lo automount[3834]: master_do_mount: failed to startup mount

[jhgoh]

로그인한 사람 없으면요?
hep 말고 lugia쪽으로요.

[slowmoyang]

lugia 현재 충남대 Eungyu Yoon 씨가 사용 중이신듯 합니다.

[jhgoh]

전남대 윤은규씨인데 잡 안도는거 같죠?

[slowmoyang]

전남대 윤은규씨인데 잡 안도는거 같죠?

넵. 재시작 할까요?

[slowmoyang]

systemctl reboot 수행