Crash Report

[HerrNamenlos123]

How can we reproduce the crash?

Sorry I cannot help you any further, i only added a console.log to my program and this happened once, but it is not reproducible, even with identical code. Just running it again made it work.

Relevant log output

Bun v1.2.2 (c1708ea6) Linux x64
Linux Kernel v6.12.15 | glibc v2.40
CPU: sse42 popcnt avx avx2
Args: "bun" "run" "src/main.ts"
Features: jsc transpiler_cache(2) tsconfig 
Builtins: "bun:main" "node:buffer" "node:child_process" "node:fs" "node:module" "node:string_decoder" "node:util/types" 
Elapsed: 203ms | User: 566ms | Sys: 63ms
RSS: 1.07GB | Peak: 0.15GB | Commit: 1.07GB | Faults: 0

panic: Illegal instruction at address 0x5B5CC72
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/1.2.2/lr1c1708eaAhgg8//B+kwG+h/n2Fw/017Em+6h8E8mpi8E47mi8Eqsj7+D2x6u/Dwn12iE0iz0pDA3Aknm32F

error: script "dev" was terminated by signal SIGILL (Illegal instruction)
zsh: illegal hardware instruction (core dumped)  bun dev

Stack Trace (bun.report)

Bun v1.2.2 (c1708ea) on linux x86_64 [RunCommand]

Illegal instruction at address 0x05B5CC72

• ??
• pas_thread_local_cache.h:0: bmalloc_heap_config_specialized_try_deallocate_not_small_exclusive_segregated
• FastMalloc.h:388: void JSC::MarkedBlock::Handle::specializedSweep<true, (...)1, (...)1, (...)1, (...)0, (...)1, (...)1, JSC::IsoInlinedHeapCellType<JSC::JSString>::DestroyFunc>
• Subspace.cpp:61: JSC::MarkedBlock::Handle::sweep
• LocalAllocator.cpp:232: JSC::LocalAllocator::tryAllocateIn
• LocalAllocator.cpp:196: JSC::LocalAllocator::allocateSlowCase
• LocalAllocatorInlines.h:41: JSC::JSString::create
• JSString.h:966: WTF::Detail::CallableWrapper<Bun::BunInspectorConnection::sendMessageToDebuggerThread(...)::'lambda'(...), void, WebCore::ScriptExecutionContext&>::call
• Function.h:82: Bun__performTask
• event_loop.zig:304: src.bun.js.event_loop.EventLoop.tickQueueWithCount__anon_154213

Features: jsc, transpiler_cache, tsconfig, tsconfig

[github-actions]

@HerrNamenlos123, thank you for reporting this crash. The latest version of Bun is v1.2.5, but this crash was reported on Bun v1.2.2.

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

bun upgrade

For Bun's internal tracking, this issue is BUN-CWY.