On Fri, 4 Nov 2016 10:31:26 +0800 kernel test robot <xiaolong.ye@xxxxxxxxx> wrote: > [ 0.680360] flags: 0x4000000000008000(head) > [ 0.681054] page dumped because: VM_BUG_ON_PAGE(1 && PageCompound(page)) > [ 0.682146] ------------[ cut here ]------------ > [ 0.682906] kernel BUG at include/linux/page-flags.h:259! That's the bug Kirill noticed, I would say. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>