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“About” page hangs: Linux cc-switch tool detection

Quick fix

Upgrade to cc-switch 4.0; the maintainer says it substantially changed configuration switching and the interface, and many related problems no longer occur.

Symptom

Section titled “Symptom”
Error output
多个 shell 并发执行时发生 TTY process-group race，其中一个或多个 shell 收到 SIGTTIN，导致整个 foreground process group 被 stopped。
English translation

When multiple shells run concurrently, a TTY process-group race occurs. One or more shells receive SIGTTIN, causing the entire foreground process group to stop.

Cause

Section titled “Cause”

The tool-version or environment detection path in cc-switch 3.20.1 may concurrently run multiple `bash -lic "<tool> --version"` commands. In a foreground TTY on Linux/WSL, interactive Bash enables job control and also manipulates the foreground process group of `/dev/tty`. The race may cause a shell to receive `SIGTTIN`, which stops the entire foreground process group. The maintainer grouped this issue under #5635 for tracking and said that cc-switch 4.0 substantially changed configuration switching and the interface, so many related problems no longer occur.

Fix

Section titled “Fix”

  1. Upgrade to cc-switch 4.0. The maintainer recommends reporting the issue again with the version and reproduction steps if it persists after upgrading.

Affected Versions

Section titled “Affected Versions”
Toolcc-switch 关于页面中的工具检测
Version3.20.1（受影响版本；维护者称 4.0 中许多相关问题已不存在）
PlatformsLinux

Source Issues

Section titled “Source Issues”

This page is distilled from 1 real issues

FAQ

Section titled “FAQ”

(No FAQ yet)

Section titled “Related problems”
either event handler is re-entrantOn Windows, try WebView2 parameters if enterprise security software conflicts; the reports provide no generally verified fix.5 issues mergedSystem folder picker opens on every click cc-switchRemove the pickDirectory() call from handleOpenTerminal in src/App.tsx to stop the folder picker from opening whenever you click to open a terminal.4 issues mergedRoute classifier requests to another provider in Claude CodeThis is an unresolved feature request; the original post provides no verifiable user-side configuration solution.1 issues merged

This is an unofficial community wiki with no affiliation to the cc-switch authors or the project itself. Its content is compiled from the project's public GitHub issues. This site distributes no software.