On Fri, 03 Sep 2010 17:00 +0200, "Ingo Molnar" <mingo@elte.hu> wrote:
> 
> * tip-bot for Christoph Hellwig <hch@lst.de> wrote:
> 
> > Commit-ID:  7974891db234467eaf1fec613ec0129cb4ac2332
> > Gitweb:     http://git.kernel.org/tip/7974891db234467eaf1fec613ec0129cb4ac2332
> > Author:     Christoph Hellwig <hch@lst.de>
> > AuthorDate: Mon, 28 Jun 2010 14:15:54 +0200
> > Committer:  Thomas Gleixner <tglx@linutronix.de>
> > CommitDate: Tue, 29 Jun 2010 12:12:59 +0200
> > 
> > x86: Always use irq stacks
>
> [...]
> 
> Checking out 7974891db2 and building+booting a kernel with this config 
> causes shows the crash.
> 
> Checking out 7974891db2~1 and building+booting a kernel with this config 
> gives a working system.
> 
> Note that tip:x86/irq has these commits currently:
> 
>  1813a68: x86: Move alloc_desk_mask variables inside ifdef
>  2589737: x86-32: Align IRQ stacks properly
>  dcfa726: x86: Remove CONFIG_4KSTACKS
>  7974891: x86: Always use irq stacks

Hello Ingo, Christoph, ...

There is still a problem with the alignment of the irq stacks. Maybe it's only
theoretical, but I think the attached patch is necessary. (Attached because
I'm sending it via a web interface.)

Please test and apply :).

Greetings,
    Alexander

> Thanks,
> 
> 	Ingo
>