Priority inversion happens when a higher priority task is help blocked
by a lesser priority task.
Suppose a system has a low priority task L, a high priority task H and
few medium priority tasks. Now resource R has been locked by L and
goes to sleep due to other medium priority tasks coming in.
In priority inversion the high priority process has to wait for the
low priority process. why can't it just preempt the low priority one
instead of waiting? Is it becoz it will jeopardize system stability
or something else?
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What if low priority process holds a lock to some critical section which
high priority process when allowed for execution needs it. So if low
priority process is pre-empted with out giving up the resouces, might give
rise to dead lock.
On Mon, Jun 20, 2011 at 10:05 AM, ricky moon.afr...@gmail.com
