ocfs2: Unmounting device (7,0) on (node local) VFS: Busy inodes after unmount of loop0 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:697! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12592 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:generic_shutdown_super+0x2ad/0x2b0 fs/super.c:695 Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 1c 50 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 e0 b0 d7 8a 48 89 de e8 33 36 91 08 <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00 RSP: 0018:ffffc90000bbfbb0 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff888066204660 RCX: 637884c7d1f51900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100cc408f2 R08: ffffc90000bbf8a7 R09: 1ffff92000177f14 R10: dffffc0000000000 R11: fffff52000177f15 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d64b4a0 R15: ffff888066204790 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3a55264e9c CR3: 000000007edb8000 CR4: 00000000003506f0 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1660 deactivate_locked_super+0x97/0x100 fs/super.c:481 cleanup_mnt+0x3d7/0x460 fs/namespace.c:1259 task_work_run+0x1d4/0x260 kernel/task_work.c:245 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0x986/0x2530 kernel/exit.c:884 do_group_exit+0x22d/0x2f0 kernel/exit.c:1026 __do_sys_exit_group kernel/exit.c:1037 [inline] __se_sys_exit_group kernel/exit.c:1035 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1035 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f65e9b9de59 Code: Unable to access opcode bytes at 0x7f65e9b9de2f. RSP: 002b:00007ffe3ddacb48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f65e9c332ef RCX: 00007f65e9b9de59 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000028 R08: 0000000000000000 R09: 00007f65e9c332ca R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe3ddade00 R13: 00007f65e9c332ca R14: 0000000000074586 R15: 00007ffe3ddaeed0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2ad/0x2b0 fs/super.c:695 Code: e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 1c 50 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 e0 b0 d7 8a 48 89 de e8 33 36 91 08 <0f> 0b 90 66 0f 1f 00 55 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00 RSP: 0018:ffffc90000bbfbb0 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff888066204660 RCX: 637884c7d1f51900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100cc408f2 R08: ffffc90000bbf8a7 R09: 1ffff92000177f14 R10: dffffc0000000000 R11: fffff52000177f15 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d64b4a0 R15: ffff888066204790 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc152a2b1d4 CR3: 00000000755a9000 CR4: 00000000003526f0