Yea. My rough guess is that the BIOS is somehow sensitive to how the
CMOS RTC is touched.

Does disabling CONFIG_HPET_EMULATE_RTC change the behavior?

But how do I do it? :-)

I have not found a way to disable it in "menuconfig". If I comment it
out manually in .config, it is automatically set back to "y" as soon as
compilation starts ...

Good point. I forgot on x86_64 you can't disable HPET_TIMER.

Could you then use the following patch (and run make oldconfig before
building).

thanks
-john


diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cb9a104..77b5273 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -640,7 +640,7 @@ config HPET_TIMER
          Choose N to continue using the legacy 8254 timer.

  config HPET_EMULATE_RTC
-       def_bool y
+       def_bool n
        depends on HPET_TIMER&&  (RTC=y || RTC=m || RTC_DRV_CMOS=m || 
RTC_DRV_CMOS=y)

  config APB_TIMER

Applying this patch does not change anything, this kernel is "bad".

Jiri Polach




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