* Thomas Gleixner <[EMAIL PROTECTED]> wrote: > The problem is that the p->last_ran value is not updated after a > context switch. So a subsequent call to current_sched_time() > calculates with a stale p->last_ran value, i.e. accounts the full > time, which the task was scheduled away. > > Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]>
> sched_info_switch(prev, next); > if (likely(prev != next)) { > - next->timestamp = now; > + next->timestamp = next->last_ran = now; ouch! nice catch. Also for v2.6.20.2 i think. 2.6.19 should be unaffected. Acked-by: Ingo Molnar <[EMAIL PROTECTED]> Ingo - 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/