On 18 Jul 9:26, Jiri Slaby wrote: > > From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> > > This patch has been added to the 3.12 stable tree. If you have any > objections, please let us know. > > =============== > > commit 4a705fef986231a3e7a6b1a6d3c37025f021f49f upstream. > > There's a race between fork() and hugepage migration, as a result we try > to "dereference" a swap entry as a normal pte, causing kernel panic. > The cause of the problem is that copy_hugetlb_page_range() can't handle > "swap entry" family (migration entry and hwpoisoned entry) so let's fix > it. > This change introduces a regression. You might want to drop this patch until the fix reaches Linus' tree: https://lkml.org/lkml/2014/7/17/671 -- Guillaume Morin <guillaume@xxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html