Andreas Kling 41376d4662 Kernel: Fix Lock racing to the WaitQueue ...

There was a time window between releasing Lock::m_lock and calling into
the lock's WaitQueue where someone else could take m_lock and bring two
threads into a deadlock situation.

Fix this issue by holding Lock::m_lock until interrupts are disabled by
either Thread::wait_on() or WaitQueue::wake_one().

2020-01-12 19:04:16 +01:00

25 KiB

Raw Blame History

View Raw