On Sun, 2007-03-04 at 08:12 -0500, Andres Salomon wrote: > Thomas Gleixner wrote: > >>> The question is, how the tick timer gets enqueued in the softirq queue. > >>> Can you isolate the codepath, where this happens ? > > > > The TIMER_SOFTIRQ runs the hrtimers during bootup until a usable > > clocksource and clock event sources are registered. The switch to high > > resolution mode happens inside of the TIMER_SOFTIRQ, but runs the > > softirq afterwards. That way the tick emulation timer, which was set up > > in the switch to highres might be executed in the softirq context, which > > is a BUG. The rbtree has not to be touched by the softirq after the > > highres switch. > > > > And an additional request, just to make it explicit that we should not > have any NO_SOFTIRQ callbacks in the tree; BUG out if we encounter such > a thing. > > Signed-off-by: Andres Salomon <[EMAIL PROTECTED]>
Acked-by: Thomas Gleixner <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
