This code represents a crash report or stack trace typically...

August 27, 2025 at 11:25 PM

size fault"},"pc":{"value":9243871908},"far":{"value":0}}},{"id":480075,"name":"JIT Worklist Helper Thread","threadState":{"x":[{"value":260},{"value":0},{"value":14080},{"value":0},{"value":0},{"value":160},{"value":9},{"value":999995926},{"value":6100659448},{"value":0},{"value":0},{"value":2},{"value":2},{"value":0},{"value":0},{"value":0},{"value":305},{"value":8741792160},{"value":0},{"value":4541859792},{"value":4541859856},{"value":6100660448},{"value":999995926},{"value":9},{"value":14080},{"value":14081},{"value":14336},{"value":8716633832,"symbolLocation":40,"symbol":"_MergedGlobals"},{"value":8716496120,"symbolLocation":0,"symbol":"bmalloc_megapage_table"}],"flavor":"ARM_THREAD_STATE64","lr":{"value":9243876944},"cpsr":{"value":1610616832},"fp":{"value":6100659568},"sp":{"value":6100659424},"esr":{"value":1442840704,"description":" Address size fault"},"pc":{"value":8281093176},"far":{"value":0}},"frames":[{"imageOffset":25656,"symbol":"__psynch_cvwait","symbolLocation":8,"imageIndex":8},{"imageOffset":7760,"symbol":"_pthread_cond_wait","symbolLocation":984,"imageIndex":9},{"imageOffset":1555492,"symbol":"WTF::ThreadCondition::timedWait(WTF::Mutex&, WTF::WallTime)","symbolLocation":240,"imageIndex":1},{"imageOffset":1553936,"symbol":"WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&)","symbolLocation":1916,"imageIndex":1},{"imageOffset":2205368,"symbol":"WTF::Detail::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, void>::call()","symbolLocation":472,"imageIndex":1},{"imageOffset":2229620,"symbol":"WTF::Thread::entryPoint(WTF::Thread::NewThreadContext*)","symbolLocation":348,"imageIndex":1},{"imageOffset":2231500,"symbol":"WTF::wtfThreadEntryPoint(void*)","symbolLocation":16,"imageIndex":1},{"imageOffset":13124,"symbol":"_pthread_start","symbolLocation":136,"imageIndex":9},{"imageOffset":2744,"symbol":"thread_start","symbolLocation":8,"imageIndex":9}]},{"id":480076,"name":"JIT Worklist Helper Thread","threadState":{"x":[{"value":260},{"value":0},{"value":6912},{"value":0},{"value":0},{"value":160},{"value":9},{"value":999997388},{"value":6101806328},{"value":0},{"value":0},{"value":2},{"value":2},{"value":0},{"value":0},{"value":0},{"value":305},{"value":8741792160},{"value":0},{"value":4535781328},{"value":4535781392},{"value":6101807328},{"value":999997388},{"value":9},{"value":6912},{"value":6913},{"value":7168},{"value":8716633832,"symbolLocation":40,"symbol":"_MergedGlobals"},{"value":8716496120,"symbolLocation":0,"symbol":"bmalloc_megapage_table"}],"flavor":"ARM_THREAD_STATE64","lr":{"value":9243876944},"cpsr":{"value":1610616832},"fp":{"value":6101806448},"sp":{"value":6101806304},"esr":{"value":1442840704,"description":" Address size fault"},"pc":{"value":8281093176},"far":{"value":0}},"frames":[{"imageOffset":25656,"symbol":"__psynch_cvwait","symbolLocation":8,"imageIndex":8},{"imageOffset":7760,"symbol":"_pthread_cond_wait","symbolLocation":984,"imageIndex":9},{"imageOffset":1555492,"symbol":"WTF::ThreadCondition::timedWait(WTF::Mutex&, WTF::WallTime)","symbolLocation":240,"imageIndex":1},{"imageOffset":1553936,"symbol":"WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, WTF::TimeWithDynamicClockType const&)","symbolLocation":1916,"imageIndex":1},{"imageOffset":2205368,"symbol":"WTF::Detail::CallableWrapper<WTF::AutomaticThread::start(WTF::AbstractLocker const&)::$_0, void>::call()","symbolLocation":472,"imageIndex":1},{"imageOffset":2229620,"symbol":"WTF::Thread::entryPoint(WTF::Thread::Ne

This code represents a crash report or stack trace typically generated by a program or operating system when a fault occurs during execution. Specifically, it's a debugging trace associated with threads and system state at the time of the issue, often related to low-level threading operations and memory faults. Here's a breakdown:

Thread Execution State: It includes detailed states for multiple threads (e.g., Thread 480075, Thread 480076). Some critical components are:
- Registers (x, lr, cpsr, fp, sp, etc.): These are CPU registers with their values at the point of failure.
- pc (Program Counter): Indicates where in the program the processor was executing when the fault occurred.
- esr (Exception Syndrome Register): Provides metadata about the fault. For instance, "Address size fault" means the program tried to access an address size that was invalid.
- far (Fault Address Register): Indicates the memory address that triggered the fault.
Stack Frames: Each thread contains a stack trace (frames) showing what the program was doing at the time of the fault. For each stack frame, it provides:
- Module and Symbol Information: The function or symbol name (e.g., __psynch_cvwait, _pthread_cond_wait) and their offsets in memory.
- Call Hierarchy: Shows the sequence of function calls leading up to the fault.
Thread Context:
- The threads seem to relate to a Just-In-Time (JIT) compilation or helper thread mechanism (JIT Worklist Helper Thread).
- They are likely performing memory-related operations (WTF::ThreadCondition::timedWait, WTF::ParkingLot::parkConditionallyImpl) that stalled or caused the fault.
Cause of Fault: The "Address size fault" suggests the threads encountered an error related to memory access—likely due to an invalid pointer or memory corruption.

In summary, this is a diagnostic report for a runtime issue, detailing the state of threads, memory, registers, and stack traces to assist developers in debugging the problem. It seems tied to multithreading and memory management within a Just-In-Time (JIT) system or other complex runtime environment.

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