Browser tool: zombie Chrome process blocks CDP port, causes gateway timeouts
증상
When the OpenClaw gateway launches a Chrome instance for the browser tool (via --remote-debugging-port=18800), the Chrome process can become unresponsive (zombie state) while still holding the CDP port. Subsequent browser tool calls find port 18800 occupied but unresponsive, causing repeated timeouts.
원인
OpenClaw gateway, skill, or agent configuration issue — root cause confirmed in the openclaw/openclaw issue tracker.
해결법
Manually kill the zombie Chrome process:
kill $(ps aux | grep "remote-debugging-port=18800" | grep -v grep | awk "{print \$2}")
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
https://github.com/openclaw/openclaw/issues/41750
Source: https://github.com/openclaw/openclaw/issues/41750
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