Segmentation fault

[blecorre-mnp]

How can we reproduce the crash?

This issue happened while running out backend project built using the following: bun build ./src/index.ts --target=bun --splitting --sourcemap --outdir=out

I unfortunately cannot setup a repo reproduction from our company code.

Relevant log output

No response

Stack Trace (bun.report)

Bun v1.1.13 (bd6a605) on macos aarch64 [AutoCommand]

Segmentation fault at address 0x00000000

• 2 unknown/js code
• JSC::Structure* JSC::LazyProperty<JSC::JSGlobalObject, JSC::Structure>::callFunc<void JSC::LazyClassStructure::initLater<Zig::GlobalObject::initGeneratedLazyClasses(...)>(...)::'lambda0'(...) const&)::'lambda'(...)>
• JSC::JSFunction* JSC::LazyProperty<JSC::JSGlobalObject, JSC::JSFunction>::callFunc<Zig::GlobalObject::finishCreation(...)::$_18>
• JSC::JSFunction* JSC::LazyProperty<JSC::JSGlobalObject, JSC::JSFunction>::callFunc<Zig::GlobalObject::finishCreation(...)::$_19>
• WTF::RefPtr<WTF::StringImpl, WTF::RawPtrTraits<WTF::StringImpl>, WTF::DefaultRefDerefTraits<WTF::StringImpl> > WTF::tryMakeStringImplFromAdaptersInternal<WTF::StringTypeAdapter<WTF::String, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void>, WTF::StringTypeAdapter<WTF::PaddingSpecification<int>, void>, WTF::StringTypeAdapter<char, void> >
• JSC::GigacageAlignedMemoryAllocator::tryReallocateMemory
• JSC::BlockDirectory::addBlock
• JSC::SlotVisitor** WTF::Vector<JSC::SlotVisitor*, 8ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>::expandCapacity<(...)0>
• JSC::HeapSnapshotBuilder::json

[Jarred-Sumner]

Are you using macros? How’d it end up in JavaScript execution when using bun build?

[blecorre-mnp]

Sorry wasn't clear here, we built the backend to JS using the build command then ran bun out/index.js and got the error. I got it working by removing the --splitting arg.