[ltp] Re: [RESEND] [PATCH 2/3] Introduce acpi_root_table=rsdt boot param and dmi list to force rsdt

Matthew Garrett linux-thinkpad@linux-thinkpad.org
Tue, 21 Oct 2008 15:29:56 +0100


On Tue, Oct 21, 2008 at 04:25:46PM +0200, Rafael J. Wysocki wrote:
> On Tuesday, 21 of October 2008, Matthew Garrett wrote:
> > We've no idea how many other systems may be affected in one way or another.
> 
> Yes, and the list may help us to get an idea IMO.

How? We *know* we're deviating from the behaviour of Windows here. What 
we don't know is how that will affect different machines. I suspect 
we'll end up with a bunch of "Well, I added this boot option and then my 
system booted slightly faster" and have no ability to work out whether 
the problem's actually related. See the number of people who reported 
that acpi_apic_instance made a difference, or even the fact that Thomas 
included a bunch of systems with no real assurance that they were hit by 
this.

A static list will eventually end up either filled with false positives 
or missing several machines that should be there.
-- 
Matthew Garrett | mjg59@srcf.ucam.org