On Thu, Jul 07, 2005 at 09:49:27AM +0300, Avi Kivity wrote:
> On Thu, 2005-07-07 at 15:55 +1000, David Gibson wrote:
>
> > MAP_PRIVATE|MAP_WRITE mappings of hugetlbfs. Because the pool of
> > hugepages is limited, a write to a MAP_PRIVATE hugepage region may
> > result in a SIGBUS, if a new hugepage cannot be allocated. This patch
>
> in that case you might allocate regular pages for the new copy.
That's not necessarily possible. On some archs - ppc64 for one -
the mmu has to be set up for hugepages on a granularity greater than
the hugepage size. So you can just arbitrarily substitute normal
pages for hugepages.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/people/dgibson
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |