On 07/18/2014 08:53 PM, Hugh Dickins wrote: > On Fri, 18 Jul 2014, Jiri Slaby wrote: > >> From: Naoya Horiguchi <[email protected]> >> >> 3.12-stable review patch. If anyone has any objections, please let me 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. >> >> [[email protected]: coding-style fixes] >> Signed-off-by: Naoya Horiguchi <[email protected]> >> Acked-by: Hugh Dickins <[email protected]> >> Cc: Christoph Lameter <[email protected]> >> Signed-off-by: Andrew Morton <[email protected]> >> Signed-off-by: Linus Torvalds <[email protected]> >> Signed-off-by: Jiri Slaby <[email protected]> > > Please drop this one for now: other -stables have carried it, but it > was found yesterday to contain a bug of its own, arguably worse than > what it's fixing. Naoya-san has done the fix for that, it's in mmotm > and should make its way to Linus probably next week: so please hold > this back until that can join it - thanks.
Thanks, I dropped it later on Fri already after Guillaume informed me about this. -- js suse labs -- 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/
