mm: output a list of loaded modules when we hit bad_page()

When we get a bad_page bug report, it's useful to see what modules the
user had loaded.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6e8ecb6..83a0205 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -318,6 +318,7 @@
 		current->comm, page_to_pfn(page));
 	dump_page(page);
 
+	print_modules();
 	dump_stack();
 out:
 	/* Leave bad fields for debug, except PageBuddy could make trouble */