On Mon, Nov 12, 2007 at 10:41:19AM -0500, Neil Horman wrote: [..] > > > Although, as I look at it, it would appear that time_init from start_kernel does > seem to init the hpet if its available, and it silently fails if that doesn't > work, moving on to the pmtimer and pit. I wonder if there is some extra magic > to resetting the hpet to run on a different cpu for some systems... > Neil > Any idea what kind of timer devices this motherborad has got? Which timer device gets activated in first kernel? Then we can focus on why the interrupts from same device are not coming in second kernel. In the past I have found issues with interrupt routing on IOPAPIC and interrupt lockup on LAPIC. But these issues are already solved. I would also think of priting LAPIC and IOAPIC entries to see how timer interrupt routing changes from first kernel to second. Thanks Vivek
