On Mon, 31 Aug 2009, Martin Schwidefsky wrote: > Ah, very good. I've been going round in circles to find a solution that > allows to downgrade the tsc rating when the second cpu is enabled. > Could not find a solution. Your approach changes semantics slightly: > the tsc clock will continue with its old rating for a while until the > watchdog will do the downgrade. If that is acceptable then this is a > good solution. Even the old code did not switch right away. The TSC was used until the next timer interrupt. Also we survive the detection of unstable TSCs with the watchdog which can happen quite after the fact that it became unusable. The important point is that we detect it at all and replace it with something useable. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|