Seg fault when using SSH2 and exception thrown

[PhilBladen]

How can we reproduce the crash?

Run bun i ssh2 first. Then run:

import "ssh2";
throw new Error("This is a test error");

Relevant log output

1 | import "ssh2";
2 | throw new Error("This is a test error");
          ^
error: This is a test error
      at D:\segfault.mjs:2:7

Bun v1.1.17 (Windows x64)
============================================================
Bun v1.1.17 (bb66bba1) Windows x64
Args: "C:\Users\Phil\.bun\bin\bun.exe" ".\segfault.mjs"
Features: jsc transpiler_cache(5) 
Builtins: "bun:main" "node:assert" "node:buffer" "node:child_process" "node:crypto" "node:dns" "node:events" "node:fs" "node:http" "node:https" "node:net" "node:path" "node:stream" "node:string_decoder" "node:tls" "node:util" "node:util/types" "node:zlib" 
Elapsed: 321ms | User: 15ms | Sys: 15ms
RSS: 0.29GB | Peak: 0.29GB | Commit: 0.36GB | Faults: 71044

panic(main thread): Segmentation fault at address 0x7FFD527657DC
oh no: Bun has crashed. This indicates a bug in Bun, not your code

Stack Trace (bun.report)

Bun v1.1.17 (bb66bba) on windows x86_64 [AutoCommand]

Segmentation fault at address 0x7FF8001C3B38

• 1 unknown/js code
• ??? at 0x5177c in ntdll.dll
• ??? at 0x514d7 in ntdll.dll
• ??? at 0x5117d in ntdll.dll
• ??? at 0x17fab in KERNEL32.DLL
• ??? at 0x1bed8 in ucrtbase.dll
• ??? at 0x1c099 in ucrtbase.dll
• Global.zig:123: exitWide
• Global.zig:106: exit
• bun_js.zig:313: start

[Jarred-Sumner]

wow thank you for this reproduction

we've seen at least 180 crash reports with a similar stacktrace, and had no way to reproduce this

[Jarred-Sumner]

Turns out it's caused by cpu-features which relies on V8 C++ APIs

Please follow along in #4290. @190n is actively working on fixing it.