Re: [PATCH] Dynamic Tick version 050406-1

[Tony Lindgren <tony@atomide.com>]

* Alexander Nyberg <alexn@dsv.su.se> [050407 02:31]:
> > > > Here's an updated dyn-tick patch. Some minor fixes:
> > > 
> > > Doesn't look so good here.  I get this with 2.6.12-rc2 (plus a few other patches).
> > > Disabling Dynamic Tick makes everything happy again (it boots).
> > > 
> > > [4294688.655000] Unable to handle kernel NULL pointer dereference at virtual address 00000000
> > 
> > Thanks for trying it out. What kind of hardware do you have? Does it
> > have HPET? It looks like no suitable timer for dyn-tick is found...
> > Maybe the following patch helps?
> 
> 
> ===== arch/i386/kernel/Makefile 1.67 vs edited =====
> --- 1.67/arch/i386/kernel/Makefile	2005-01-26 06:21:13 +01:00
> +++ edited/arch/i386/kernel/Makefile	2005-04-07 11:21:19 +02:00
> @@ -32,6 +32,7 @@ obj-$(CONFIG_ACPI_SRAT) 	+= srat.o
>  obj-$(CONFIG_HPET_TIMER) 	+= time_hpet.o
>  obj-$(CONFIG_EFI) 		+= efi.o efi_stub.o
>  obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
> +obj-$(CONFIG_NO_IDLE_HZ)	+= dyn-tick.o
>  
>  EXTRA_AFLAGS   := -traditional

Ah, that explains :) Thanks!

Tony
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