================================================================== BUG: KCSAN: data-race in delete_from_page_cache_batch / page_mapping write to 0xffffea0004d05a58 of 8 bytes by task 16062 on cpu 1: page_cache_delete_batch mm/filemap.c:319 [inline] delete_from_page_cache_batch+0x30c/0x6c0 mm/filemap.c:349 truncate_inode_pages_range+0x1d5/0xad0 mm/truncate.c:326 truncate_inode_pages+0x20/0x30 mm/truncate.c:425 kill_bdev block/bdev.c:77 [inline] set_blocksize+0x24e/0x270 block/bdev.c:157 sb_set_blocksize block/bdev.c:166 [inline] sb_min_blocksize+0x9d/0x120 block/bdev.c:182 ext4_fill_super+0x3a5/0x7840 fs/ext4/super.c:3918 mount_bdev+0x1e8/0x290 fs/super.c:1368 ext4_mount+0x2d/0x40 fs/ext4/super.c:6506 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610 vfs_get_tree+0x4a/0x1a0 fs/super.c:1498 do_new_mount fs/namespace.c:2988 [inline] path_mount+0x11ec/0x1d20 fs/namespace.c:3318 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount+0x24b/0x2f0 fs/namespace.c:3516 __x64_sys_mount+0x63/0x70 fs/namespace.c:3516 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffea0004d05a58 of 8 bytes by task 16067 on cpu 0: page_mapping+0x111/0x1c0 mm/util.c:725 page_evictable mm/internal.h:83 [inline] __pagevec_lru_add_fn+0x82/0x490 mm/swap.c:1011 __pagevec_lru_add+0x189/0x240 mm/swap.c:1039 lru_cache_add mm/swap.c:453 [inline] lru_cache_add_inactive_or_unevictable+0x156/0x270 mm/swap.c:484 wp_page_copy+0x803/0x10a0 mm/memory.c:3061 do_wp_page+0x5a8/0xba0 handle_pte_fault mm/memory.c:4577 [inline] __handle_mm_fault mm/memory.c:4694 [inline] handle_mm_fault+0x96e/0x1580 mm/memory.c:4792 do_user_addr_fault+0x609/0xbe0 arch/x86/mm/fault.c:1390 handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x91/0x220 arch/x86/mm/fault.c:1531 asm_exc_page_fault+0x1e/0x30 value changed: 0xffff8881010b2be8 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 16067 Comm: systemd-udevd Not tainted 5.15.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================