================================================================== BUG: KCSAN: data-race in list_lru_count_one / list_lru_isolate_move write to 0xffff8880b3b98e70 of 8 bytes by task 7807 on cpu 0: list_lru_isolate_move+0x122/0x150 mm/list_lru.c:180 d_lru_shrink_move+0x95/0xb0 fs/dcache.c:456 dentry_lru_isolate+0xa4/0x190 fs/dcache.c:1178 __list_lru_walk_one+0x10b/0x390 mm/list_lru.c:232 list_lru_walk_one+0x78/0xa0 mm/list_lru.c:276 list_lru_shrink_walk include/linux/list_lru.h:195 [inline] prune_dcache_sb+0x7e/0xb0 fs/dcache.c:1201 super_cache_scan+0x1cb/0x2c0 fs/super.c:105 do_shrink_slab+0x2a9/0x5b0 mm/vmscan.c:512 shrink_slab_memcg mm/vmscan.c:582 [inline] shrink_slab+0x477/0x540 mm/vmscan.c:661 shrink_node_memcgs mm/vmscan.c:2673 [inline] shrink_node+0x354/0x1000 mm/vmscan.c:2777 shrink_zones mm/vmscan.c:2980 [inline] do_try_to_free_pages+0x230/0xb30 mm/vmscan.c:3033 try_to_free_mem_cgroup_pages+0x1f7/0x4b0 mm/vmscan.c:3355 reclaim_high.constprop.0+0xee/0x140 mm/memcontrol.c:2232 mem_cgroup_handle_over_high+0x8f/0x180 mm/memcontrol.c:2313 tracehook_notify_resume include/linux/tracehook.h:197 [inline] exit_to_usermode_loop+0x20a/0x2c0 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:278 [inline] do_syscall_64+0x36e/0x390 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880b3b98e70 of 8 bytes by task 10458 on cpu 1: list_lru_count_one+0xb4/0x120 mm/list_lru.c:193 list_lru_shrink_count include/linux/list_lru.h:123 [inline] super_cache_count+0xd1/0x190 fs/super.c:147 do_shrink_slab+0xb3/0x5b0 mm/vmscan.c:430 shrink_slab_memcg mm/vmscan.c:582 [inline] shrink_slab+0x477/0x540 mm/vmscan.c:661 shrink_node_memcgs mm/vmscan.c:2673 [inline] shrink_node+0x354/0x1000 mm/vmscan.c:2777 shrink_zones mm/vmscan.c:2980 [inline] do_try_to_free_pages+0x230/0xb30 mm/vmscan.c:3033 try_to_free_mem_cgroup_pages+0x1f7/0x4b0 mm/vmscan.c:3355 reclaim_high.constprop.0+0xee/0x140 mm/memcontrol.c:2232 mem_cgroup_handle_over_high+0x8f/0x180 mm/memcontrol.c:2313 tracehook_notify_resume include/linux/tracehook.h:197 [inline] exit_to_usermode_loop+0x20a/0x2c0 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x218/0x240 arch/x86/entry/common.c:278 ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:344 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 10458 Comm: syz-executor.3 Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================