================================================================== BUG: KCSAN: data-race in page_counter_charge / page_counter_charge write to 0xffff88812b78c158 of 8 bytes by task 14391 on cpu 1: page_counter_charge+0x1dd/0x230 mm/page_counter.c:81 mem_cgroup_migrate+0x74/0x290 mm/memcontrol.c:6903 migrate_page_states+0x64c/0x730 mm/migrate.c:671 migrate_page_copy+0x1b2/0x560 mm/migrate.c:682 migrate_page+0xc2/0xf0 mm/migrate.c:710 move_to_new_page+0xa5/0x680 mm/migrate.c:964 __unmap_and_move+0x3f4/0x670 mm/migrate.c:1130 unmap_and_move+0x133/0x800 mm/migrate.c:1196 migrate_pages+0x1ad/0xa30 mm/migrate.c:1444 do_mbind mm/mempolicy.c:1371 [inline] kernel_mbind+0xe88/0x1010 mm/mempolicy.c:1492 __do_sys_mbind mm/mempolicy.c:1499 [inline] __se_sys_mbind mm/mempolicy.c:1495 [inline] __x64_sys_mbind+0x74/0x80 mm/mempolicy.c:1495 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88812b78c158 of 8 bytes by task 14385 on cpu 0: page_counter_charge+0x1bc/0x230 mm/page_counter.c:80 mem_cgroup_migrate+0x74/0x290 mm/memcontrol.c:6903 migrate_page_states+0x64c/0x730 mm/migrate.c:671 migrate_page_copy+0x1b2/0x560 mm/migrate.c:682 migrate_page+0xc2/0xf0 mm/migrate.c:710 move_to_new_page+0xa5/0x680 mm/migrate.c:964 __unmap_and_move+0x3f4/0x670 mm/migrate.c:1130 unmap_and_move+0x133/0x800 mm/migrate.c:1196 migrate_pages+0x1ad/0xa30 mm/migrate.c:1444 do_mbind mm/mempolicy.c:1371 [inline] kernel_mbind+0xe88/0x1010 mm/mempolicy.c:1492 __do_sys_mbind mm/mempolicy.c:1499 [inline] __se_sys_mbind mm/mempolicy.c:1495 [inline] __x64_sys_mbind+0x74/0x80 mm/mempolicy.c:1495 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 14385 Comm: syz-executor.3 Not tainted 5.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================