rethrowing error from worker causes illegal instruction panic

[trvswgnr]

How can we reproduce the crash?

1. git clone https://github.com/trvswgnr/bun-worker-microservices.git
2. git checkout bun-crash-bug
3. bun ./index.ts
4. see intentional error thrown at services/logger.ts:7:9
5. see error being rethrown at shared/util.ts:102:13

Relevant log output

➜ worker-microservices git:(main) ✗ bun ./index.ts
123 travvy
2 | import fs from "node:fs";
3 | 
4 | const validStrategies = {
5 |     console: console.log,
6 |     file: (msg: string) => {
7 |         fs.appendFileSync("logs/app.log", `${msg}\n`)
               ^
ENOENT: No such file or directory
   errno: -2
 syscall: "open"

      at file (/Users/WagnerT/projects/worker-microservices/services/logger.ts:7:12)
      at /Users/WagnerT/projects/worker-microservices/services/logger.ts:23:41
      at log (/Users/WagnerT/projects/worker-microservices/services/logger.ts:29:18)
      at /Users/WagnerT/projects/worker-microservices/shared/util.ts:88:37
============================================================
Bun v1.1.36 (ededc168) macOS x64
macOS v13.2.1
CPU: sse42 popcnt avx avx2
Args: "bun" "./index.ts"
Features: jsc transpiler_cache(16) tsconfig workers_spawned(15) 
Builtins: "bun:main" "node:fs" "node:string_decoder" "node:util/types" 
Elapsed: 80ms | User: 413ms | Sys: 144ms
RSS: 99.09MB | Peak: 99.09MB | Commit: 1.07GB | Faults: 146

panic: Illegal instruction at address 0x10220BF53
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/1.1.36/ma1ededc16EgggkggD__m6i/iBo4orlBirgglBy3+/kBmo+/kB+usmmBipisagy3xIA3Cm1/ikC

234 travvy
2 | import fs from "node:fs";
3 | 
4 | const validStrategies = {
5 |     console: console.log,
6 |     file: (msg: string) => {
7 |         fs.appendFileSync("logs/app.log", `${msg}\n`)
               ^
ENOENT: No such file or directory
   errno: -2
 syscall: "open"

      at file (/Users/WagnerT/projects/worker-microservices/services/logger.ts:7:12)
      at /Users/WagnerT/projects/worker-microservices/services/logger.ts:23:41
      at log (/Users/WagnerT/projects/worker-microservices/services/logger.ts:29:18)
      at /Users/WagnerT/projects/worker-microservices/shared/util.ts:88:37
[1]    54576 illegal hardware instruction  bun ./index.ts

Stack Trace (bun.report)

Bun v1.1.36 (ededc16) on macos x86_64 [AutoCommand]

Illegal instruction at address 0x106A58F53

• 2 unknown/js code
• WebCore::reportException
• WebCore::JSEventListener::handleEvent
• WebCore::EventTarget::innerInvokeEventListeners
• WebCore::EventTarget::fireEventListeners
• WebCore::EventTarget::dispatchEvent
• WebWorker__dispatchError
• src.bun.js.web_worker.WebWorker.onUnhandledRejection
• Bun__reportUnhandledError

Features: workers_spawned, jsc, transpiler_cache, tsconfig

_{Sentry Issue: BUN-8Y3}

[github-actions]

@trvswgnr, the latest version of Bun is v1.1.37, but this crash was reported on Bun v1.1.36.

Are you able to reproduce this crash on the latest version of Bun?

bun upgrade

[trvswgnr]

yes

[Jarred-Sumner]

Tracking this in #15964

TLDR: Worker in Bun is still unstable, especially when it comes to error handling or closing them.