gemini-cli - 💡(How to fix) Fix Critical Crash: ioctl(2) failed, EBADF in ShellExecutionService.resizePty

What happened?

Description: The CLI crashes with a Bad File Descriptor error when a PTY resize is triggered at the exact moment a process terminates. This appears to be a race condition where the UI attempts to resize a terminal process that has already closed its file descriptor.

Error Trace:

1 Error: ioctl(2) failed, EBADF 2 at UnixTerminal.resize (node-pty/unixTerminal.js:243:13) 3 at _ShellExecutionService.resizePty (chunk-BE42OOYM.js:320262:30) 4 at interactiveCli-RDMZS6KL.js:6529:31 (React useEffect)

Root Cause Analysis: The ShellExecutionService.resizePty method (found in chunk-BE42OOYM.js) includes error handling for ESRCH and Windows-specific exit errors, but it does not catch EBADF. When the underlying node-pty instance is destroyed or its file descriptor is closed before the resize call completes, EBADF is thrown, causing an unhandled exception that terminates the CLI.

What did you expect to happen?

Suggested Fix: Update the try/catch block in ShellExecutionService.resizePty to also ignore errors where the message includes "EBADF" or the code is EBADF, as this is a terminal state for the process anyway.

Client information

• CLI Version: 0.44.0
• Git Commit: 1000b33d4
• Session ID: 198b1255-18fd-4f7c-a5d7-02eea9703a6d
• Operating System: linux v20.20.2
• Sandbox Environment: no sandbox
• Model Version: gemini-3-flash-preview
• Auth Type: oauth-personal
• Memory Usage: 757.5 MB
• Terminal Name: Unknown
• Terminal Background: Unknown
• Kitty Keyboard Protocol: Unsupported

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