On Tuesday 10 March 2009, John Stultz wrote: > > After reverting 5cd1c9c5cf30 and the somewhat related 6c9bacb41c10 on > > top of 2.6.28.7, the system boots OK again [1]. > > Huh. No clue right off. What clocksource is in use on this system? $ cat /sys/devices/system/clocksource/clocksource0/current_clocksource tod (That's from 2.6.26.) > Also can you provide the output with the following patch? I already did something similar. Did you see my follow-up mail? I added: + if (unlikely(clock->xtime_nsec < ((s64)xtime.tv_nsec << clock->shift))) + printk("Negative result: %llu - %lld\n", + (unsigned long long)clock->xtime_nsec, + (long long)((s64)xtime.tv_nsec << clock->shift)); Which resulted in: Negative result: 166039808000 - 166039808256 Would you still like me to try your patch? Cheers, FJP -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html