================================================================== BUG: KCSAN: data-race in jbd2_journal_file_inode / jbd2_journal_finish_inode_data_buffers write to 0xffff88813793cf78 of 8 bytes by task 1090 on cpu 0: jbd2_journal_file_inode+0x17a/0x330 jbd2_journal_inode_ranged_write+0x30/0x40 fs/jbd2/transaction.c:2705 ext4_jbd2_inode_add_write fs/ext4/ext4_jbd2.h:424 [inline] move_extent_per_page fs/ext4/move_extent.c:393 [inline] ext4_move_extents+0x1c94/0x2210 fs/ext4/move_extent.c:673 __ext4_ioctl fs/ext4/ioctl.c:988 [inline] ext4_ioctl+0x1532/0x2170 fs/ext4/ioctl.c:1279 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:860 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88813793cf78 of 8 bytes by task 1403 on cpu 1: jbd2_journal_finish_inode_data_buffers+0x3d/0x60 fs/jbd2/commit.c:276 ext4_journal_finish_inode_data_buffers+0x41/0x60 fs/ext4/super.c:541 journal_finish_inode_data_buffers fs/jbd2/commit.c:299 [inline] jbd2_journal_commit_transaction+0x16a8/0x3460 fs/jbd2/commit.c:786 kjournald2+0x263/0x480 fs/jbd2/journal.c:213 kthread+0x2c7/0x2e0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 value changed: 0x00000000000fdfff -> 0x00000000000fefff Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1403 Comm: jbd2/sda1-8 Tainted: G W 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================