tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter head: 59f33c90ef6c1a75d4af75e5f60d98c0d965b6a2 commit: 410180e063ecff3337fea5519bcf12410f13986e [33/61] cachefiles: Implement extent shaper config: i386-randconfig-r015-20200513 (attached as .config) compiler: gcc-4.9 (Ubuntu 4.9.3-13ubuntu2) 4.9.3 reproduce: git checkout 410180e063ecff3337fea5519bcf12410f13986e # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): fs/cachefiles/content-map.c: In function 'cachefiles_expand_content_map': _enter("%llx,%lx,%x", i_size, size, object->content_map_size); ^ vim +260 fs/cachefiles/content-map.c 249 250 /* 251 * Expand the content map to a larger file size. 252 */ 253 void cachefiles_expand_content_map(struct cachefiles_object *object, loff_t i_size) 254 { 255 size_t size; 256 u8 *map, *zap; 257 258 size = cachefiles_map_size(i_size); 259 261 262 if (size <= object->content_map_size) 263 return; 264 265 map = kzalloc(size, GFP_KERNEL); 266 if (!map) 267 return; 268 269 write_lock_bh(&object->content_map_lock); 270 if (size > object->content_map_size) { 271 zap = object->content_map; 272 memcpy(map, zap, object->content_map_size); 273 object->content_map = map; 274 object->content_map_size = size; 275 } else { 276 zap = map; 277 } 278 write_unlock_bh(&object->content_map_lock); 279 280 kfree(zap); 281 } 282 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org