Re: Crash with SMP on post 2.6.15 -git kernel

From: Stephen Hemminger
Date: Wed Jan 11 2006 - 19:04:32 EST


On Wed, 11 Jan 2006 19:12:30 +0530
Vivek Goyal <vgoyal@xxxxxxxxxx> 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.
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