[Bug] CPU spinning when idle or blocked on I/O
Resolved 💬 4 comments Opened Jan 31, 2026 by rrva Closed Mar 2, 2026
Bug Description
During a normal conversation, Claude Code can become unresponsive while waiting for output. The process consumes 100% CPU and never recovers.
Environment Info
- Platform: darwin
- Terminal: Ghostty
- Version: 2.1.27
- Feedback ID: 7efdc831-d6b8-480e-9133-21278e1935e4
- OS Version: macOS 26.2 (Build 25C56)
- Architecture: arm64e
See attached samples of two different invocations
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