EXT4-fs (loop4): failed to initialize system zone (-117) EXT4-fs (loop4): mount failed ================================================================== BUG: KCSAN: data-race in __lru_add_drain_all / folio_activate read-write to 0xffff888237c29b88 of 1 bytes by task 12780 on cpu 0: folio_batch_add include/linux/pagevec.h:74 [inline] folio_batch_add_and_move mm/swap.c:231 [inline] folio_activate+0xc0/0x1c0 mm/swap.c:361 folio_mark_accessed+0x119/0x190 mm/swap.c:481 shmem_file_read_iter+0x338/0x5b0 mm/shmem.c:2806 call_read_iter include/linux/fs.h:1979 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x3da/0x5c0 fs/read_write.c:470 ksys_read+0xeb/0x1a0 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x42/0x50 fs/read_write.c:621 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888237c29b88 of 1 bytes by task 27371 on cpu 1: folio_batch_count include/linux/pagevec.h:53 [inline] cpu_needs_drain mm/swap.c:800 [inline] __lru_add_drain_all+0x21d/0x420 mm/swap.c:889 lru_add_drain_all+0x10/0x20 mm/swap.c:905 invalidate_bdev+0x54/0x70 block/bdev.c:86 __ext4_fill_super fs/ext4/super.c:5678 [inline] ext4_fill_super+0x16ef/0x3940 fs/ext4/super.c:5703 get_tree_bdev+0x272/0x300 fs/super.c:1577 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5735 vfs_get_tree+0x51/0x1b0 fs/super.c:1750 do_new_mount+0x203/0x660 fs/namespace.c:3335 path_mount+0x496/0xb30 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3861 __x64_sys_mount+0x67/0x80 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 27371 Comm: syz-executor.4 Tainted: G W 6.5.0-syzkaller-11812-g7733171926cc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 ==================================================================