The new page could be taken by hwpoison, in which case return EAGAIN to allocate a new page and retry. CC: Nick Piggin CC: Christoph Lameter CC: KAMEZAWA Hiroyuki Signed-off-by: Wu Fengguang --- mm/migrate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- linux-mm.orig/mm/migrate.c 2009-11-02 10:18:45.000000000 +0800 +++ linux-mm/mm/migrate.c 2009-11-02 10:26:16.000000000 +0800 @@ -556,7 +556,7 @@ static int move_to_new_page(struct page * holding a reference to the new page at this point. */ if (!trylock_page(newpage)) - BUG(); + return -EAGAIN; /* got by hwpoison */ /* Prepare mapping for the new page.*/ newpage->index = page->index; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/