Reorder interrupt handler a bit such that producer/consumer index of status block is read first before acknowledging the interrupts. Otherwise bge(4) may get stale status block as acknowledging an interrupt may yield another status block update.
Reorder interrupt handler a bit such that producer/consumer
index of status block is read first before acknowledging the
interrupts. Otherwise bge(4) may get stale status block as
acknowledging an interrupt may yield another status block update.

Reviewed by:	marius

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