mandeep sandhu wrote:
can another ISR preempt the current executing ISR!
during execution of ISR's are'nt the interrupts disabled?
No interrupts are not disable during the ISR. A ISR can be interrupted
by another ISR. But not by the same ISR. Even on SMP, a specific ISR
cannot be run multiple at the same time.
do ISR's also have priority associated with them???
i think b4 executing an ISR the kernel calls "preempt-disable"
(not very sure though....)???
yes it seems.
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