[BUG] Bun v1.3.14 (0a466a11) Windows x64 (baseline)
Resolved 💬 3 comments Opened May 5, 2026 by wilurn Closed Jul 2, 2026
Preflight Checklist
- [x] I have searched existing issues and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code
What's Wrong?
Bun v1.3.14 (0a466a11) Windows x64 (baseline)
CPU: sse42 avx avx2
panic: Segmentation fault at address 0x40FE0
What Should Happen?
Bun v1.3.14 (0a466a11) Windows x64 (baseline)
CPU: sse42 avx avx2
panic: Segmentation fault at address 0x40FE0
Error Messages/Logs
PS C:\WINDOWS\system32> claude
============================================================
Bun v1.3.14 (0a466a11) Windows x64 (baseline)
Windows v.win11_dt
CPU: sse42 avx avx2
Args: "C:\Users\wiroonp\AppData\Roaming\npm\node_modules\@anthropic-ai\claude-code\bin\claude.exe"
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) fetch jsc spawn(2) standalone_executable yaml_parse claude_code
Builtins: "bun:ffi" "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:crypto" "node:dns" "node:events" "node:fs" "node:fs/promises" "node:http" "node:https" "node:module" "node:net" "node:os" "node:path" "node:path/posix" "node:path/win32" "node:perf_hooks" "node:process" "node:readline" "node:stream" "node:stream/consumers" "node:string_decoder" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:vm" "node:zlib" "ws" "node:http2"
Elapsed: 530ms | User: 343ms | Sys: 156ms
RSS: 0.37GB | Peak: 0.37GB | Commit: 0.42GB | Faults: 91527 | Machine: 16.85GB
panic(main thread): Segmentation fault at address 0x40FE0
panic: Segmentation fault at address 0x2BEA244FFE8
panicked during a panic. Aborting.
PS C:\WINDOWS\system32>
Steps to Reproduce
error
Claude Model
None
Is this a regression?
Yes, this worked in a previous version
Last Working Version
_No response_
Claude Code Version
claude --version 2.1.128 (Claude Code)
Platform
Anthropic API
Operating System
Windows
Terminal/Shell
Windows Terminal
Additional Information
_No response_
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