On Sat, Mar 16, 2013 at 12:08:54AM +0800, chpoph wrote: > If ARCH_HAS_READ_CURRENT_TIMER is not defined and on current timer is > used for udelay, then __loop_delay and __loop_const_udelay is used to > delay a specific time interval. but in delay-loop.S, loops_per_jiffy > (not per cpu data) is used to calculate the number of loops. in SMP > system, udelay delays the wrong time interval if two cpus running at > different frequency.
We don't support different CPUs running at different frequencies with the delay loop. Sorry. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
