Re: KDB makes Nehalem hang at early boot until key press

On Friday 30 October 2009 03:26:44 pm you wrote:
> On Fri, Oct 30, 2009 at 04:12:06PM +0200, Thomas Renninger wrote:
> > > > IMO something like the attached patch makes sense?
> > > > This fixes the problem with kdb=off (our default).
> > > > But I am anxious that kdb code could still get activitated somehow
> > > > and the machine might oops when trying to access not initialized
> > > > kdb structures? Could someone give an estimation how risky that
> > > > patch really is?
> > >
> > > I'd really rather fix the underlying problem.  I have no idea what that
> > > might be though...
> >
> > Me too...
>
> Can you send me the .config you're using, as well as the kernel
> revision?  I'll try to duplicate it.

I expect this is restricted to the Boxboro-EX Intel platform (possibly 
similar) and not to Nehalem CPUs.

If you want to try on newer code you find the latest openSUSE kernel here 
(2.6.32-rcX based, even newer than 11.2(2.6.31 based), both should have the 
same kdb patch included I posted, I only tried with 2.6.32 SUSE kernel, but 
both should be affected):
ftp://ftp.suse.com/pub/projects/kernel/kotd/master/x86_64

Again thanks,

    Thomas

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