Re: HPET regression in 2.6.26 versus 2.6.25 -- found another userwith the same regression

From: Ingo Molnar
Date: Wed Aug 20 2008 - 05:15:51 EST



* Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:

> > This is true if he reverted just the 3def3d6d... commit, but if he
> > also reverts the similar, and immediately following, 1e934dda...
> > commit, then his 2.6.26 kernel runs fine.
>
> interesting,
>
> David, can you try only comment out
>
> late_initcall(lapic_insert_resource);

i.e. the patch below?

what's your theory, what could be the reason for David's lockups?

Ingo

--------------->
Index: linux/arch/x86/kernel/apic_32.c
===================================================================
--- linux.orig/arch/x86/kernel/apic_32.c
+++ linux/arch/x86/kernel/apic_32.c
@@ -1740,4 +1740,4 @@ static int __init lapic_insert_resource(
* need call insert after e820_reserve_resources()
* that is using request_resource
*/
-late_initcall(lapic_insert_resource);
+//late_initcall(lapic_insert_resource);
Index: linux/arch/x86/kernel/apic_64.c
===================================================================
--- linux.orig/arch/x86/kernel/apic_64.c
+++ linux/arch/x86/kernel/apic_64.c
@@ -1614,4 +1614,4 @@ static int __init lapic_insert_resource(
* need call insert after e820_reserve_resources()
* that is using request_resource
*/
-late_initcall(lapic_insert_resource);
+//late_initcall(lapic_insert_resource);

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