================================================================== BUG: KCSAN: data-race in jbd2_journal_commit_transaction / jbd2_journal_dirty_metadata write to 0xffff888144518800 of 8 bytes by task 4800 on cpu 1: jbd2_journal_commit_transaction+0x2962/0x3290 fs/jbd2/commit.c:1181 kjournald2+0x263/0x480 fs/jbd2/journal.c:213 kthread+0x20b/0x230 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 read to 0xffff888144518800 of 8 bytes by task 21215 on cpu 0: is_journal_aborted include/linux/jbd2.h:1647 [inline] is_handle_aborted include/linux/jbd2.h:1654 [inline] jbd2_journal_dirty_metadata+0x5e/0x670 fs/jbd2/transaction.c:1458 __ext4_handle_dirty_metadata+0xc6/0x590 fs/ext4/ext4_jbd2.c:331 ext4_do_update_inode fs/ext4/inode.c:5141 [inline] ext4_mark_iloc_dirty+0x12f2/0x16f0 fs/ext4/inode.c:5724 __ext4_mark_inode_dirty+0x4db/0x5e0 fs/ext4/inode.c:5918 __ext4_ext_dirty fs/ext4/extents.c:169 [inline] ext4_swap_extents+0x1215/0x13a0 fs/ext4/extents.c:5699 move_extent_per_page+0xd1c/0x16c0 fs/ext4/move_extent.c:360 ext4_move_extents+0xaac/0xc00 fs/ext4/move_extent.c:673 __ext4_ioctl fs/ext4/ioctl.c:992 [inline] ext4_ioctl+0x218f/0x35e0 fs/ext4/ioctl.c:1332 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:739 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:739 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 21215 Comm: syz-executor.5 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================