Re: Crash with SMP on post 2.6.15 -git kernel

[Stephen Hemminger <shemminger@osdl.org>]

On Wed, 11 Jan 2006 19:12:30 +0530
Vivek Goyal <vgoyal@in.ibm.com> wrote:

> On Wed, Jan 11, 2006 at 12:12:40PM +0100, Andi Kleen wrote:
> > On Wednesday 11 January 2006 10:32, Vivek Goyal wrote:
> > 
> > > Few x86_64 APIC related kexec changes are still in Andi's tree and have not
> > > been pushed to Linus tree. So there are no new x86_64 kexec patches in latest
> > > git repository.
> > > 
> > > Andrew has pushed x86_64 kdump related patches to Linus tree. And these become
> > > effective only under CONFIG_CRASH_DUMP. These patches are very less likely
> > > to botch with this stuff.
> > 
> > Yes, it was only a very quick look through the change log. Sorry for
> > hitting on you. I have no clue what could have broken. And my machines boot 
> > too with -git7 and his config.
> > 
> > Stephen, can you please do a binary search?
> > 
> 
> Andi,
> 
> While testing this I ran into another problem with same symtoms. If 
> I compile my kernel for physical location greater than or equal to 
> 16MB then only BP boots and applicatoin processors don't come up. I had
> noticed this problem in i386 and posted a patch. Here is the similar  patch 
> for x86_64.
> 
> Though the symtoms are same but this does not seem to be related to the
> problem which Stephen is facing as he seems to be compiling the kernel
> for 1MB location only.

Aha... Yes, this fixes the problem.