gemini-cli - 💡(How to fix) Fix Crash: `ioctl(2) failed, EBADF` in `node-pty` during PTY resize on macOS

What happened?

While using Gemini CLI on macOS, the application crashes with the following PTY-related error:

ERROR ioctl(2) failed, EBADF

The stack trace points to:

@lydell/node-pty/unixTerminal.js:243 pty.resize(this._fd, cols, rows);

This results in an unexpected critical crash and the CLI exits immediately.

The issue appears to happen during PTY resize handling.

What did you expect to happen?

Gemini CLI should continue running normally without crashing during terminal resize or PTY updates.

Instead of throwing a fatal error, the CLI should gracefully handle invalid PTY/file descriptor states internally.

Client information

Platform: macOS

Installation method:

npm install -g @google/gemini-cli

Node.js installed via Homebrew:

/opt/homebrew/lib/node_modules/@google/gemini-cli

Gemini CLI was installed globally.

Login information

Logged in using Google Account authentication.

Anything else we need to know?

This seems related to PTY/file descriptor handling inside node-pty on macOS.

Possible trigger scenarios:

terminal window resize, PTY/session restoration, invalid or already-closed file descriptor during resize operation.

Failing line:

pty.resize(this._fd, cols, rows);

A file descriptor validity check before resize may help prevent the crash.