On Thu, 2007-08-30 at 18:38 +0200, Frederik Deweerdt wrote:
> On Tue, Aug 28, 2007 at 02:09:59AM +1000, Rusty Russell wrote:
> > If the stack pointer is 0xc057a000, then the first stack page is at
> > 0xc0579000 (the stack pointer is decremented before use). Not
> > calculating this correctly caused guests with CONFIG_DEBUG_PAGEALLOC=y
> > to be killed with a "bad stack page" message: the initial kernel stack
> > was just preceeding the .smp_locks section which
> > CONFIG_DEBUG_PAGEALLOC marks read-only when freeing.
> >
> Hello Rusty,
>
> I just could try the patch, sorry for the delay. Albeit it allows to
> progress a little further in the boot process, lguest seems to like that
> "section that was just freed" :)
Yes, I got this too, then had to jump on a plane (and away from my test
box).
Turns out this actually isn't my bug (yay!).
See next patch...
Rusty.
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