Nx pseudo terminal panics on SIGKILL

[JamesNimlos]

Current Behavior

We've noticed that if we send SIGKILL to an Nx process sometimes it can crash from within the Rust Nx code and hang indefinitely. This issue is much more prevalent on our private monorepo which has 709 projects, but I've been able to create a reproduction case https://github.com/JamesNimlos/nx-debug-on-sigkill.

Expected Behavior

Nx should not panic reopen a terminal session and honestly I'm not entirely sure how it could since it's a SIGKILL.

GitHub Repo

https://github.com/JamesNimlos/nx-debug-on-sigkill

Steps to Reproduce

The script is this:

#!/usr/bin/env bash

export RUST_BACKTRACE=full

nx start crew &
crew_pid=$!

echo "crew PID: $crew_pid"

sleep 0.3

kill -9 $crew_pid

Where it's running nx start crew and then 300 ms later sending that process a SIGKILL (-9).

Nx Report

> nx report

 NX   Report complete - copy this into the issue template

Node           : 18.20.1
OS             : darwin-arm64
Native Target  : aarch64-macos
npm            : 10.5.1

nx          : 19.7.3
@nrwl/tao   : 19.7.3
typescript  : 4.5.2

Failure Logs

~/projects/nx-debug-stalled-process > ./try-break-nx.sh              
crew PID: 25368
~/projects/nx-debug-stalled-process > 
 NX   Running target start for project crew and 1 task it depends on:

———————————————————————————————————————————————————————————————————————————————————————————————————————————————

> nx run crew:build

thread '<unnamed>' panicked at packages/nx/src/native/pseudo_terminal/pseudo_terminal.rs:61:27:
Failed to enter raw terminal mode: Os { code: 5, kind: Uncategorized, message: "Input/output error" }
stack backtrace:
   0:        0x10f108188 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h243268f17d714c7f
   1:        0x10ee99f94 - core::fmt::write::hb3cfb8a30e72d7ff
   2:        0x10f0d8aac - std::io::Write::write_fmt::hfb2314975de9ecf1
   3:        0x10f10a4d4 - std::panicking::default_hook::{{closure}}::h14c7718ccf39d316
   4:        0x10f109f24 - std::panicking::default_hook::hc62e60da3be2f352
   5:        0x10f10bc3c - std::panicking::rust_panic_with_hook::h09e8a656f11e82b2
   6:        0x10f10aecc - std::panicking::begin_panic_handler::{{closure}}::h1230eb3cc91b241c
   7:        0x10f10ae40 - std::sys::backtrace::__rust_end_short_backtrace::hc3491307aceda2c2
   8:        0x10f10ae34 - _rust_begin_unwind
   9:        0x10f308c1c - core::panicking::panic_fmt::ha4b80a05b9fff47a
  10:        0x10f308fac - core::result::unwrap_failed::h441932a0bca0dd7f
  11:        0x10ef8052c - nx::native::pseudo_terminal::rust_pseudo_terminal::RustPseudoTerminal::run_command::h3aa77d1a0a088207
  12:        0x10efb4800 - napi::tokio_runtime::within_runtime_if_available::hbb1699d95c763d42
  13:        0x10efb358c - nx::native::pseudo_terminal::rust_pseudo_terminal::__napi_impl_helper__RustPseudoTerminal__7::__napi__fork::h80ad27e8195d0428
thread '<unnamed>' panicked at library/core/src/panicking.rs:221:5:
panic in a function that cannot unwind
stack backtrace:
   0:        0x10f108188 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h243268f17d714c7f
   1:        0x10ee99f94 - core::fmt::write::hb3cfb8a30e72d7ff
   2:        0x10f0d8aac - std::io::Write::write_fmt::hfb2314975de9ecf1
   3:        0x10f10a4d4 - std::panicking::default_hook::{{closure}}::h14c7718ccf39d316
   4:        0x10f109f24 - std::panicking::default_hook::hc62e60da3be2f352
   5:        0x10f10bc3c - std::panicking::rust_panic_with_hook::h09e8a656f11e82b2
   6:        0x10f10aea4 - std::panicking::begin_panic_handler::{{closure}}::h1230eb3cc91b241c
   7:        0x10f10ae40 - std::sys::backtrace::__rust_end_short_backtrace::hc3491307aceda2c2
   8:        0x10f10ae34 - _rust_begin_unwind
   9:        0x10f309090 - core::panicking::panic_nounwind_fmt::h91ee161184879b56
  10:        0x10f3090ec - core::panicking::panic_nounwind::heab7ebe7a6cd845c
  11:        0x10f3090a4 - core::panicking::panic_cannot_unwind::hedc43d82620205bf
  12:        0x10efb3738 - nx::native::pseudo_terminal::rust_pseudo_terminal::__napi_impl_helper__RustPseudoTerminal__7::__napi__fork::h80ad27e8195d0428
thread caused non-unwinding panic. aborting.

Package Manager Version

No response

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

Again, we see this very consistently on our private monorepo which has 709 and millions of lines of TS which obviously means it will take longer resolving the graph etc.

Additionally, on the reproduction case I could only get it to reproduce when I use the start target and added the build target to dependsOn.

[orestisioakeimidis]

We started seeing a similar behaviour recently. Errors like:

> nx build app

thread '<unnamed>' panicked at packages/nx/src/native/pseudo_terminal/pseudo_terminal.rs:61:27:
Failed to enter raw terminal mode: Os { code: 6, kind: Uncategorized, message: "No such device or address" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 5
Aborted (core dumped)

> nx report

Node           : 18.19.1
OS             : darwin-arm64
Native Target  : aarch64-macos
npm            : 10.2.4

nx              : 19.7.3
@nx/js          : 19.7.3
@nx/jest        : 19.7.3
@nx/linter      : 19.7.3
@nx/eslint      : 19.7.3
@nx/workspace   : 19.7.3
@nx/angular     : 19.7.3
@nx/devkit      : 19.7.3
@nx/express     : 19.7.3
@nx/node        : 19.7.3
@nx/playwright  : 19.7.3
@nrwl/tao       : 19.7.3
@nx/vite        : 19.7.3
@nx/web         : 19.7.3
@nx/webpack     : 19.7.3
typescript      : 5.5.4
---------------------------------------
Community plugins:
@ng-bootstrap/ng-bootstrap : 17.0.1
@ngrx/component            : 18.0.2
@ngrx/component-store      : 18.0.2
@ngrx/effects              : 18.0.2
@ngrx/eslint-plugin        : 18.0.2
@ngrx/operators            : 18.0.2
@ngrx/router-store         : 18.0.2
@ngrx/store                : 18.0.2
@ngrx/store-devtools       : 18.0.2
ngx-toastr                 : 19.0.0

[l-Leniac-l]

I have the same issue on Linux and my coworkers on MacOS.

> nx report

Node           : 22.11.0
OS             : linux-x64
Native Target  : x86_64-linux
npm            : 10.9.0

nx                 : 20.0.9
@nx/js             : 20.0.9
@nx/jest           : 20.0.9
@nx/eslint         : 20.0.9
@nx/workspace      : 20.0.9
@nx/devkit         : 20.0.9
@nx/eslint-plugin  : 20.0.9
@nx/express        : 20.0.9
@nx/next           : 20.0.9
@nx/node           : 20.0.9
@nx/react          : 20.0.9
@nx/web            : 20.0.9
@nx/webpack        : 20.0.9
typescript         : 5.5.4