Re: Help me for a typical problem regarding KeAquireSpinLock which is not Locking other Thread in Same CPU

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Don Burn wrote:
You are using one OldIrql globally, the OldIrql variable should be a local variable on the stack. I suspect there are other problems but that is the obvious first one. For that matter why are you allocating these at all, KIRQL and KSPIN_LOCK are both <= sizeof (PULONG) ?


Yeah like Callers of KeDelayExecutionThread must be running at IRQL <= APC_LEVEL.

The test is broken. The OP cannot "sleep" with a spinlock held. Driver verifier, as always, would have nipped this thread in the bud.
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