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

Yinghai Lu
2008-08-20T08:02:28Z

On Wed, Aug 20, 2008 at 12:51 AM, Bill Fink <billfink@mindspring.com> wrote:
> On Tue, 19 Aug 2008, Yinghai Lu wrote:
>
>> On Tue, Aug 19, 2008 at 9:51 PM, David Witbrodt <dawitbro@sbcglobal.net> wrote:
>> > While reading drivers/char/hpet.c and looking at the functions
>> > used there, I discovered request_region(), and realized that it
>> > would be difficult to compare the entire iomem_resource tree to
>> > a dummy tree only containing resources added by insert_resource()
>> > and request_resource(). It might be simpler to have my tiny
>> > e820_reserve_resources() replacement add each resource to 3 trees
>> > -- the real iomem_resource tree, and 2 dummy trees -- which could
>> > then be compared for differences just before the kernel locks up.
>>
>> with reverting patch that change insert_resource to request_resource...
>> 2.6.26 or 2.6.27-rcX still hange somewhere.
>
> 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);

YH