1e2ef501f0
- When adding new waiting threads to the waitlist for an object, use INSERT_LIST_TAIL() instead of INSERT_LIST_HEAD() so that new waiters go at the end of the list instead of the beginning. When we wake up a synchronization object, only the first waiter is awakened, and this needs to be the first thread that actually waited on the object. - Correct missing semicolon in INSERT_LIST_TAIL() macro. - Implement lookaside lists correctly. Note that the Am1771 driver uses lookaside lists to manage shared memory (i.e. DMAable) buffers by specifying its own alloc and free routines. The Microsoft documentation says you should avoid doing this, but apparently this did not deter the developers at AMD from doing it anyway. With these changes (which are the result of two straight days of almost non-stop debugging), I think I finally have the object/thread handling semantics implemented correctly. The Am1771 driver no longer crashes unexpectedly during association or bringing the interface up. |
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