Re: EDD problem -- regression -- crash on booting by probing EDD

[Matt Domsch]

On Tue, Apr 22, 2008 at 06:28:40AM -0700, Andrew Morton wrote:
> > On Sun, 20 Apr 2008 19:33:32 -0300 (GFT) "werner" <werner@xxxxxxxxxxxxx> wrote:
> > There is a regression in 2.6.25.
> 
> Rafael bcc'ed.
> 
> >   Booting stops with: Probing EDD (edd=off to disable) message.
> > 
> > It dont work the kernel boot parameter edd=off .  With pci=off the computer continues to boot, but later it dont find hard disks etc.
> 
> Tim and Matt cc'ed.
> 
> > Thats happening on 2.6.25   definitive, but was verified to go back until 2.6.24-rc6-git8, but it wasnt yet at 2.6.24-rc6-git2 which worked correctly.
> > 
> 
> hm, that's a nice narrow window.  Unfortunately for the next few days I
> can't personally get in and find out what we changed during it.

I've scanned the diff between these, and can't see anything that would
obviously cause a problem.  Nothing that touches the EDD codepath
directly at least.  I'll be curious to see the additional initcall
debug data.

-- 
Matt Domsch
Linux Technology Strategist, Dell Office of the CTO
linux.dell.com & www.dell.com/linux
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