Amap Tech
Sep 27, 2023 · Fundamentals
Crash Analysis of C++ LooperObserverMan: Memory Reordering and Segmentation Fault
The crash in asl::LooperObserverMan::notifyIdle was traced to a compiler‑level store‑store reordering that exposed an uninitialized observer pointer, causing an illegal memory access, and was fixed by inserting a memory barrier or using proper atomic ordering to enforce correct initialization order.
DebuggingMemory Reorderingc
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