Tom e31f8b56e8 Kernel: Fix thread donation hanging the system ...

Fixes two flaws in the thread donation logic: Scheduler::donate_to
would never really donate, but just trigger a deferred yield. And
that deferred yield never actually donated to the beneficiary.

So, when we can't immediately donate, we need to save the beneficiary
and use this information as soon as we can perform the deferred
context switch.

Fixes #3495

2020-09-15 23:30:44 +02:00

27 KiB

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