✓

Crash Report Uploaded

Your redacted crash report has been sent to the Bun team for internal tracking.

⚠ Outdated Version Detected
You're running an older version of Bun. This crash may already be fixed in the latest release. Please update before submitting a detailed bug report.
Your version: 1.3.9
Latest release: 1.4.0

Try upgrading Bun:

bun upgrade

What to do next

1

Update to the latest version: bun upgrade

2

To help get it fixed faster, provide source code and detailed reproduction steps via bun feedback

Help us fix it

To help get it fixed faster, provide source code and detailed reproduction steps via bun feedback

View Stack Trace
Bun v1.3.9 ([`d5628db`](<https://github.com/oven-sh/bun/tree/d5628db23f67f5556ab33255ad12a214780266d4>)) on macos aarch64 [(pre-init)] Segmentation fault at address 0x00000010 - *1 unknown/js code* - [`PreciseAllocation.cpp:230`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/PreciseAllocation.cpp#L230>): `JSC::PreciseAllocation::~PreciseAllocation` - [`PreciseAllocation.cpp:227`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/PreciseAllocation.cpp#L227>): `JSC::PreciseAllocation::~PreciseAllocation` - [`PreciseAllocation.cpp:201`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/PreciseAllocation.cpp#L201>): `JSC::PreciseAllocation::reuseForLowerTierPrecise` - [`IsoSubspace.cpp:111`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/IsoSubspace.cpp#L111>): `JSC::IsoSubspace::sweepLowerTierPreciseCell` - [`MarkedSpace.cpp:260`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/MarkedSpace.cpp#L260>): `JSC::MarkedSpace::sweepPreciseAllocations` - [`Heap.cpp:2345`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2345>): `JSC::Heap::sweepInFinalize` - [`Heap.cpp:2279`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2279>): `JSC::Heap::finalize` - [`Heap.cpp:2217`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2217>): `JSC::Heap::handleNeedFinalize` - [`Heap.cpp:2228`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2228>): `JSC::Heap::handleNeedFinalize` - [`Heap.cpp:1829`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L1829>): `JSC::Heap::finishChangingPhase` - [`Heap.cpp:1804`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L1804>): `JSC::Heap::changePhase` - [`Heap.cpp:1794`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L1794>): `JSC::Heap::runEndPhase` - [`Heap.cpp:1424`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L1424>): `JSC::Heap::runCurrentPhase` - [`Heap.cpp:2056`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2056>): `JSC::Heap::collectInMutatorThread(...)(...) const` - [`ScopedLambda.h:106`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/WTF/wtf/ScopedLambda.h#L106>): `WTF::ScopedLambdaFunctor<void (...), JSC::Heap::collectInMutatorThread()::$_0>::implFunction` - [`ScopedLambda.h:58`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/WTF/wtf/ScopedLambda.h#L58>): `void WTF::ScopedLambda<void (...)>::operator()<JSC::CurrentThreadState&>(...) const` - [`MachineStackMarker.cpp:235`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/MachineStackMarker.cpp#L235>): `JSC::callWithCurrentThreadState` - [`Heap.cpp:2068`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2068>): `JSC::Heap::collectInMutatorThread` - [`Heap.cpp:2037`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2037>): `JSC::Heap::stopIfNecessarySlow` - [`Heap.cpp:2009`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2009>): `JSC::Heap::stopIfNecessarySlow` - [`HeapInlines.h:272`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/HeapInlines.h#L272>): `JSC::Heap::stopIfNecessary` - [`Heap.cpp:2849`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/Heap.cpp#L2849>): `JSC::Heap::collectIfNecessaryOrDefer` - [`LocalAllocator.cpp:126`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/LocalAllocator.cpp#L126>): `JSC::LocalAllocator::allocateSlowCase` - [`FreeListInlines.h:46`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/FreeListInlines.h#L46>): `JSC::HeapCell* JSC::FreeList::allocateWithCellSize<JSC::LocalAllocator::allocate(...)::'lambda'()>` - [`LocalAllocatorInlines.h:44`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/LocalAllocatorInlines.h#L44>): `JSC::LocalAllocator::allocate` - [`AllocatorInlines.h:35`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/AllocatorInlines.h#L35>): `JSC::Allocator::allocate(...) const` - [`CompleteSubspaceInlines.h:39`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/heap/CompleteSubspaceInlines.h#L39>): `JSC::CompleteSubspace::allocate` - [`JSCellInlines.h:194`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/runtime/JSCellInlines.h#L194>): `void* JSC::tryAllocateCellHelper<JSC::JSLexicalEnvironment, (...)0>` - [`JSCellInlines.h:214`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/runtime/JSCellInlines.h#L214>): `void* JSC::allocateCell<JSC::JSLexicalEnvironment>` - [`JSLexicalEnvironment.h:98`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/runtime/JSLexicalEnvironment.h#L98>): `JSC::JSLexicalEnvironment::create` - [`DFGOperations.cpp:2467`](<https://github.com/oven-sh/WebKit/blob/8af7958ff0e2a4787569edf64641a1ae7cfe074a/Source/JavaScriptCore/dfg/DFGOperations.cpp#L2467>): `operationCreateActivationDirect`

Thank you for helping us improve Bun.