On Thursday, March 13, 2014 12:49:07 AM Thomas Gleixner wrote: > On Thu, 13 Mar 2014, Rafael J. Wysocki wrote: > > I agree, and we need to fix that for 3.14. Patch is appended. > > You beat me by a few minutes. Was about to send out the same, just > with a more spicy changelog :) > > > --- > > From: Rafael J. Wysocki <rafael.j.wyso...@intel.com> > > Subject: ACPI / init: Invoke early ACPI initialization later > > > > Commit 73f7d1ca3263 (ACPI / init: Run acpi_early_init() before > > timekeeping_init()) optimistically moved the early ACPI initialization > > before timekeeping_init(), but that didn't work, because it broke fast > > TSC calibration for Julian Wollrath on Thinkpad x121e (and most likely > > for others too). The reason is that acpi_early_init() enables the SCI > > and that interferes with the fast TSC calibration mechanism. > > > > Thus follow the original idea to execute acpi_early_init() before > > efi_enter_virtual_mode() to help the EFI people for now and we can > > revisit the other problem that commit 73f7d1ca3263 attempted to > > address in the future (if really necessary). > > Reviewed-by: Thomas Gleixner <t...@linutronix.de>
Thanks! I have a plan to push this to Linus for -rc7. Rafael -- 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/
