claude-code - 💡(How to fix) Fix [Feature Request] Include 1M context window support for Claude Sonnet [1 comments, 2 participants]

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/rdavis/.local/share/claude/versions/2.1.119 (expected in multi-process scenarios)\n at mH6 (/$bunfs/root/src/entrypoints/cli.js:2736:2177)\n at E$8 (/$bunfs/root/src/entrypoints/cli.js:2736:1257)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T23:20:22.254Z"},{"error":"Error: 429 {"type":"error","error":{"type":"rate_limit_error","message":"Extra usage is required for long context requests."},"request_id":"req_011CaV8g9sL2BJCJAnbdE5eN"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:55343)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4943)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-27T23:20:24.295Z"}]

TL;DR

The issue is likely due to a rate limit error or a lock acquisition failure, and a workaround may involve checking the usage limits or adjusting the context length.

Guidance

• The error messages indicate a rate limit error for long context requests and a lock acquisition failure, suggesting that the issue may be related to the usage limits or the multi-process scenario.
• To verify the cause, check the usage limits for the current plan and the context length used in the request.
• Consider reducing the context length or checking the documentation for any specific requirements for the opus and sonnet models.
• Look into the lock acquisition failure error to determine if it's related to the multi-process scenario or a configuration issue.

Example

No code snippet is provided as the issue does not contain sufficient information to create a relevant example.

Notes

The issue may be specific to the darwin platform or the tmux terminal, and the version 2.1.119 may have known issues or limitations.

Recommendation

Apply workaround: The rate limit error and lock acquisition failure suggest that a workaround may be necessary to resolve the issue, such as adjusting the context length or checking the usage limits.