Tom bd73102513 Kernel: Fix some race conditions with Lock and waiting/waking threads ...

There is a window between acquiring/releasing the lock with the atomic
variables and subsequently waiting or waking threads. With a single
processor this window was closed by using a critical section, but
this doesn't prevent other processors from running these code paths.
To solve this, set a flag in the WaitQueue while holding m_lock which
determines if threads should be blocked at all.

2021-01-25 22:54:55 +01:00

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