[Bug] Segmentation fault in Bun runtime during Claude Code execution

[tha-hammer]

Bug Description

Bun v1.3.10 (1423d3c8) Linux x64 (baseline)
Linux Kernel v6.12.73 | glibc v2.41
CPU: sse42 popcnt avx avx2
Args: "claude" "--dangerously-skip-permissions" "--resume" "3ace7cf0-53a5-445a-8ffb-4f796d3edea1"
Features: Bun.stderr(2) Bun.stdin(2) Bun.stdout(2) abort_signal(36) fetch(289) jsc spawn(76) standalone_executable process_dlopen(2) yaml_parse(24)
Builtins: "bun:main" "node:assert" "node:async_hooks" "node:buffer" "node:child_process" "node:constants" "node:crypto" "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:stream" "node:timers/promises" "node:tls" "node:tty" "node:url" "node:util" "node:zlib" "node:worker_threads" "undici" "ws"
Elapsed: 10357735ms | User: 148363ms | Sys: 39299ms
RSS: 0.02ZB | Peak: 0.79GB | Commit: 0.02ZB | Faults: 0 | Machine: 0.08TB

panic(main thread): Segmentation fault at address 0x7FFE012EC2E5
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

https://bun.report/1.3.10/B_11423d3cmgkgEuhogC4oi5wE+++PslpuiEslpuiEslpuiEslpuiE______________A28//Bquh7lB

[1] 164204 illegal hardware instruction

Environment Info

• Platform: linux
• Terminal: vte-based
• Version: 2.1.50
• Feedback ID: 5136fbd9-de7e-4119-8bcc-b68a1a0833d6

Errors

[{"error":"Error: LSP server plugin:gopls-lsp:gopls failed to start: Executable not found in $PATH: \"gopls\"\n    at start (/$bunfs/root/claude:2549:22313)\n    at async f (/$bunfs/root/claude:2549:24623)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: LSP server plugin:pyright-lsp:pyright failed to start: Executable not found in $PATH: \"pyright-langserver\"\n    at start (/$bunfs/root/claude:2549:22313)\n    at async f (/$bunfs/root/claude:2549:24623)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: LSP server plugin:typescript-lsp:typescript failed to start: Executable not found in $PATH: \"typescript-language-server\"\n    at start (/$bunfs/root/claude:2549:22313)\n    at async f (/$bunfs/root/claude:2549:24623)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: Executable not found in $PATH: \"gopls\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/claude:2549:20843)\n    at f (/$bunfs/root/claude:2549:24623)\n    at L (/$bunfs/root/claude:2549:32725)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: Executable not found in $PATH: \"pyright-langserver\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/claude:2549:20843)\n    at f (/$bunfs/root/claude:2549:24623)\n    at L (/$bunfs/root/claude:2549:32725)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: Executable not found in $PATH: \"typescript-language-server\"\n    at spawn (unknown)\n    at spawn (node:child_process:667:35)\n    at spawn (node:child_process:14:39)\n    at start (/$bunfs/root/claude:2549:20843)\n    at f (/$bunfs/root/claude:2549:24623)\n    at L (/$bunfs/root/claude:2549:32725)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: Failed to start LSP server plugin:gopls-lsp:gopls: Executable not found in $PATH: \"gopls\"\n    at <anonymous> (/$bunfs/root/claude:2549:32747)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: Failed to start LSP server plugin:pyright-lsp:pyright: Executable not found in $PATH: \"pyright-langserver\"\n    at <anonymous> (/$bunfs/root/claude:2549:32747)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: Failed to start LSP server plugin:typescript-lsp:typescript: Executable not found in $PATH: \"typescript-language-server\"\n    at <anonymous> (/$bunfs/root/claude:2549:32747)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-22T17:52:07.485Z"},{"error":"Error: LSP server plugin:rust-analyzer-lsp:rust-analyzer crashed with exit code 1\n    at <anonymous> (/$bunfs/root/claude:2549:21470)\n    at …

Note: Content was truncated.

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] Bun segfault crash after ~2h session on Windows x64 (Bun v1.3.10) #26984
2. Bun segfault crash after extended session #22632
3. [BUG] CPU without AVX → Bun crashes → SIGILL #24562

This issue will be automatically closed as a duplicate in 3 days.

• If your issue is a duplicate, please close it and 👍 the existing issue instead
• To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically closed as a duplicate of #26984.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.