Steven Rostedt wrote: > The latency tracer can call clocksource_read very early in bootup and > before the clock source variable has been initialized. This results in a > crash at boot up (even before earlyprintk is initialized). Since the > clock->read variable points to NULL. > > This patch simply initializes the clock to use clocksource_jiffies, so > that any early user of clocksource_read will not crash.
There's a similar problem with reads of sched_clock() too early on some architectures. This problem reminds me of a fix I need to re-send to the ARM mailing list. That aside, I heartily recommend applying this patch, whether the rest of this system gets mainlined or not. FWIW: Acked-by: Tim Bird <[EMAIL PROTECTED]> -- Tim ============================= Tim Bird Architecture Group Chair, CE Linux Forum Senior Staff Engineer, Sony Corporation of America ============================= -- 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/
