cvs commit: src/sys/i386/isa clock.c

[David Malone]

On Thu, Feb 03, 2005 at 07:06:03PM +0000, John Baldwin wrote:
>   Log:
>   Anytime we write to the RTC's status B register to possibly enable
>   interrupts, read from the interrupt status register to clear any pending
>   interrupts.  Otherwise in some rare cases the RTC would never fire any
>   interrupts as it constantly thinks it has an interrupt pending.

Do you think there's any link between this and the occasional
problems people have reported over the years where the RTC stops
firing and they stop getting CPU usage stats?

	David.