Re: hugetlbfs for ppc440 - kernel BUG

On Tue, Oct 21, 2008 at 3:46 PM, Satya [off-list ref] wrote:

Ben,
Look here: http://www-unix.mcs.anl.gov/zeptoos/hugepages/

thanks,
./satya


On Tue, Oct 21, 2008 at 1:47 PM, Benjamin Herrenschmidt <
benh@kernel.crashing.org> wrote:

quoted

On Tue, 2007-07-10 at 13:38 -0500, Satya wrote:

quoted

hello,
I am trying to implement hugetlbfs on the IBM Bluegene/L IO node
(ppc440) and I have a big problem as well as a few questions to ask
the group. I patched a 2.6.21.6 linux kernel (manually) with Edi
Shmueli's hugetlbfs implementation (found here:
http://patchwork.ozlabs.org/linuxppc/patch?id=8427) for this. I did
have to make slight changes (described at the end) to make it work.
My test program is a shortened version of a sys v shared memory
example described in Documentation/vm/hugetlbpage.txt

Hi !

The patchwork link unfortunately didn't survive the transition to
patchwork 2.

Do you know what's the status of Hugetlb support for 44x ? Is there any
plan to release that for upstream inclusion ?

Cheers,
Ben.

whoops, sorry for top-posting. Here is a patch that worked at that time:
http://www-unix.mcs.anl.gov/zeptoos/hugepages/hugetlbpage_44x.patch

I didn't follow up after this to get it merged upstream. Also I don't know
if hugetlb core has changed to deal with PTEs in high memory.

./satya