tree: https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git zoned head: 9560b14e9901073c5fca5e5e6c531dbd950b2b04 commit: 366b493dd533a7de96f719c30d452ea745233836 [2/3] bcache: handle zone management bios for bcache device config: arm-randconfig-r004-20200524 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 366b493dd533a7de96f719c30d452ea745233836 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 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 >>, old ones prefixed by <<): drivers/md/bcache/request.c: In function 'bch_data_invalidate_zones': 1072 | ret = bch_keylist_realloc(&iop->insert_keys, free_keys, iop->c); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/free_keys +1072 drivers/md/bcache/request.c 1054 1055 /* 1056 * Invalidate the LBA range on cache device which is covered by the 1057 * the resetting zones. 1058 */ 1059 static int bch_data_invalidate_zones(struct closure *cl, 1060 size_t zone_sector, 1061 size_t nr_zones) 1062 { 1063 struct search *s = container_of(cl, struct search, cl); 1064 struct data_insert_op *iop = &s->iop; 1065 int max_keys, free_keys; 1066 size_t start = zone_sector; 1067 int ret; 1068 1069 max_keys = (block_bytes(iop->c) - sizeof(struct jset)) / 1070 sizeof(uint64_t); 1071 bch_keylist_init(&iop->insert_keys); 1073 if (ret < 0) 1074 return -ENOMEM; 1075 1076 while (nr_zones-- > 0) { 1077 atomic_t *journal_ref = NULL; 1078 size_t size = s->d->disk->queue->limits.chunk_sectors; 1079 more_keys: 1080 bch_keylist_reset(&iop->insert_keys); 1081 free_keys = max_keys; 1082 1083 while (size > 0 && free_keys >= 2) { 1084 size_t sectors = min_t(size_t, size, 1085 1U << (KEY_SIZE_BITS - 1)); 1086 1087 bch_keylist_add(&iop->insert_keys, 1088 &KEY(iop->inode, start, sectors)); 1089 start += sectors; 1090 size -= sectors; 1091 free_keys -= 2; 1092 } 1093 1094 /* Insert invalidate keys into btree */ 1095 journal_ref = bch_journal(iop->c, &iop->insert_keys, NULL); 1096 if (!journal_ref) { 1097 ret = -EIO; 1098 break; 1099 } 1100 1101 ret = bch_btree_insert(iop->c, 1102 &iop->insert_keys, journal_ref, NULL); 1103 atomic_dec_bug(journal_ref); 1104 if (ret < 0) 1105 break; 1106 1107 if (size) 1108 goto more_keys; 1109 } 1110 1111 bch_keylist_free(&iop->insert_keys); 1112 1113 return ret; 1114 } 1115 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org