I suspect that there are `Promise` in `mPendingUnhandledRejections` when destructing and the destructor of hash table clear memory to 0x0 first before release RefPtr. The `NotifyUnhandledRejections` runnable should clear the items in `mPendingUnhandledRejections`, the only possibility is that worker terminates when `NotifyUnhandledRejections` runnable is schudled but yet executed.
Bug 1579858 Comment 13 Edit History
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I suspect that there are `Promise` in `mPendingUnhandledRejections` when destructing and the destructor of hash table clear memory to 0x0 first before release RefPtr? The `NotifyUnhandledRejections` runnable should clear the items in `mPendingUnhandledRejections`, the only possibility is that worker terminates when `NotifyUnhandledRejections` runnable is schudled but yet executed.