Re: early fixmap causes kmap breakage

From: Ingo Molnar
Date: Tue Dec 30 2008 - 01:14:20 EST



* Nick Piggin <npiggin@xxxxxxx> wrote:

> On Mon, Dec 29, 2008 at 03:17:31PM -0800, Andrew Morton wrote:
> > On Thu, 18 Dec 2008 22:15:43 +0100
> > Nick Piggin <npiggin@xxxxxxx> wrote:
> >
> > > Hi,
> > >
> > > I've debugged a problem where i386+pae systems with more than a few CPUs
> > > blow up at boot in the kmap_atomic code.
> >
> > ping?
>
> No further progress here, I'm waiting on input for how to fix this
> "nicely". Meantime, clearing the early fixmap pte I guess works, but you
> lose a page... is it possible to put it into .initdata or is there some
> issue with that? (I guess on a PAE kernel, 4K isn't a big deal).

yeah, 4K shouldnt be a big deal. Mind sending a patch for this?

Ingo
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