tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 48e8992e33abf054bcc0bb2e77b2d43bb899212e commit: 4e58aaeebb3c27993c734c99eae6881b196b1ddb [6386/7300] rcu: Restrict access to RCU CPU stall notifiers config: csky-randconfig-r013-20230826 (https://download.01.org/0day-ci/archive/20231214/202312140939.zA3tdSi2-lkp@xxxxxxxxx/config) compiler: csky-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231214/202312140939.zA3tdSi2-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202312140939.zA3tdSi2-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): kernel/rcu/tree.o: in function `drain_page_cache': >> kernel/rcu/tree.c:2965:(.text+0x5b44): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.c:2968:(.text+0x5b5c): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.o: in function `kfree_rcu_shrink_scan': kernel/rcu/tree.c:3476:(.text+0x5b6a): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.o: in function `rcu_do_batch': kernel/rcu/tree.c:2102:(.text+0x5be6): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.c:2117:(.text+0x5c06): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.c:2119:(.text+0x5c22): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.c:2135:(.text+0x5c66): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.c:2144:(.text+0x5ca2): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.o: in function `rcu_lock_acquire': >> include/linux/rcupdate.h:301:(.text+0x5cb2): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' include/linux/rcupdate.h:301:(.text+0x5cce): relocation truncated to fit: R_CKCORE_PCREL_IMM16BY4 against `__jump_table' kernel/rcu/tree.o: in function `rcu_lock_release': include/linux/rcupdate.h:306:(.text+0x5cee): additional relocation overflows omitted from the output vim +2965 kernel/rcu/tree.c 53c72b590b3a0a Uladzislau Rezki (Sony 2020-05-25 2951) d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2952 static int d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2953 drain_page_cache(struct kfree_rcu_cpu *krcp) d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2954 { d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2955 unsigned long flags; d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2956 struct llist_node *page_list, *pos, *n; d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2957 int freed = 0; 53c72b590b3a0a Uladzislau Rezki (Sony 2020-05-25 2958) 6b706e5603c44f Zqiang 2023-04-18 2959 if (!rcu_min_cached_objs) 6b706e5603c44f Zqiang 2023-04-18 2960 return 0; 6b706e5603c44f Zqiang 2023-04-18 2961 d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2962 raw_spin_lock_irqsave(&krcp->lock, flags); d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2963 page_list = llist_del_all(&krcp->bkvcache); ac7625ebd5f7ba Uladzislau Rezki (Sony 2021-04-15 2964) WRITE_ONCE(krcp->nr_bkv_objs, 0); d0bfa8b3c411e2 Zhang Qiang 2021-04-15 @2965 raw_spin_unlock_irqrestore(&krcp->lock, flags); d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2966 d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2967 llist_for_each_safe(pos, n, page_list) { d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2968 free_page((unsigned long)pos); d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2969 freed++; d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2970 } 53c72b590b3a0a Uladzislau Rezki (Sony 2020-05-25 2971) d0bfa8b3c411e2 Zhang Qiang 2021-04-15 2972 return freed; 53c72b590b3a0a Uladzislau Rezki (Sony 2020-05-25 2973) } 53c72b590b3a0a Uladzislau Rezki (Sony 2020-05-25 2974) :::::: The code at line 2965 was first introduced by commit :::::: d0bfa8b3c411e25e014e4131d2804afe29c440a6 kvfree_rcu: Release a page cache under memory pressure :::::: TO: Zhang Qiang <qiang.zhang@xxxxxxxxxxxxx> :::::: CC: Paul E. McKenney <paulmck@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
