On Fri, 4 May 2007, Benjamin Herrenschmidt wrote:
> > The SLUB allocator relies on struct page fields first_page and slab,
> > overwritten by ptl when SPLIT_PTLOCK: so the SLUB allocator cannot then
> > be used for the lowest level of pagetable pages. This was obstructing
> > SLUB on PowerPC,
On Thu, 2007-05-03 at 22:04 +0100, Hugh Dickins wrote:
> On Thu, 3 May 2007, Hugh Dickins wrote:
> >
> > Seems we're all wrong in thinking Christoph's Kconfiggery worked
> > as intended: maybe it just works some of the time. I'm not going
> > to hazard a guess as to how to fix it up, will resume
On Thu, 3 May 2007, Christoph Lameter wrote:
>
> There are SLUB patches pending (not in rc7-mm2 as far as I can recall)
> that reduce the default page order sizes to head off this issue. The
> defaults were initially too large (and they still default to large
> for testing if Mel's Antifrag
On Thu, 3 May 2007, Hugh Dickins wrote:
> On Thu, 3 May 2007, Hugh Dickins wrote:
> >
> > Seems we're all wrong in thinking Christoph's Kconfiggery worked
> > as intended: maybe it just works some of the time. I'm not going
> > to hazard a guess as to how to fix it up, will resume looking at
>
On Thu, 3 May 2007, Hugh Dickins wrote:
>
> Seems we're all wrong in thinking Christoph's Kconfiggery worked
> as intended: maybe it just works some of the time. I'm not going
> to hazard a guess as to how to fix it up, will resume looking at
> the powerpc's quicklist potential later.
Here's
On Thu, 3 May 2007, Hugh Dickins wrote:
Seems we're all wrong in thinking Christoph's Kconfiggery worked
as intended: maybe it just works some of the time. I'm not going
to hazard a guess as to how to fix it up, will resume looking at
the powerpc's quicklist potential later.
Here's the
On Thu, 3 May 2007, Hugh Dickins wrote:
On Thu, 3 May 2007, Hugh Dickins wrote:
Seems we're all wrong in thinking Christoph's Kconfiggery worked
as intended: maybe it just works some of the time. I'm not going
to hazard a guess as to how to fix it up, will resume looking at
the
On Thu, 3 May 2007, Christoph Lameter wrote:
There are SLUB patches pending (not in rc7-mm2 as far as I can recall)
that reduce the default page order sizes to head off this issue. The
defaults were initially too large (and they still default to large
for testing if Mel's Antifrag work is
On Thu, 2007-05-03 at 22:04 +0100, Hugh Dickins wrote:
On Thu, 3 May 2007, Hugh Dickins wrote:
Seems we're all wrong in thinking Christoph's Kconfiggery worked
as intended: maybe it just works some of the time. I'm not going
to hazard a guess as to how to fix it up, will resume looking
On Fri, 4 May 2007, Benjamin Herrenschmidt wrote:
The SLUB allocator relies on struct page fields first_page and slab,
overwritten by ptl when SPLIT_PTLOCK: so the SLUB allocator cannot then
be used for the lowest level of pagetable pages. This was obstructing
SLUB on PowerPC, which uses
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