ocfs2: Unmounting device (7,2) on (node local) VFS: Busy inodes after unmount of loop2 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:652! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 5831 Comm: syz-executor Not tainted 6.15.0-rc6-syzkaller-00346-g5723cc3450bc #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:650 Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 0e 37 ef ff 49 8b 16 48 81 c3 68 06 00 00 48 c7 c7 e0 e6 78 8b 48 89 de e8 45 fe f6 fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f RSP: 0018:ffffc90004547b80 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff888034be6668 RCX: a54c3b4ecb39ee00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100697ccf0 R08: ffff8880b8823e93 R09: 1ffff110171047d2 R10: dffffc0000000000 R11: ffffed10171047d3 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8e46ed40 R15: ffff888034be6780 FS: 0000000000000000(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4704499000 CR3: 000000006acac000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xbc/0x130 fs/super.c:473 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1431 task_work_run+0x1d4/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x8d6/0x2550 kernel/exit.c:953 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 __do_sys_exit_group kernel/exit.c:1113 [inline] __se_sys_exit_group kernel/exit.c:1111 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111 x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbe1258e969 Code: Unable to access opcode bytes at 0x7fbe1258e93f. RSP: 002b:00007ffc6c7c5878 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fbe126108c2 RCX: 00007fbe1258e969 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000028 R08: 00007ffc6c7c3616 R09: 00007ffc6c7c6b30 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc6c7c6b30 R13: 00007fbe1261089d R14: 000000000002295e R15: 00007ffc6c7c7c00 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2bc/0x2c0 fs/super.c:650 Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 0e 37 ef ff 49 8b 16 48 81 c3 68 06 00 00 48 c7 c7 e0 e6 78 8b 48 89 de e8 45 fe f6 fe 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f RSP: 0018:ffffc90004547b80 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff888034be6668 RCX: a54c3b4ecb39ee00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100697ccf0 R08: ffff8880b8823e93 R09: 1ffff110171047d2 R10: dffffc0000000000 R11: ffffed10171047d3 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8e46ed40 R15: ffff888034be6780 FS: 0000000000000000(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f87e1a17000 CR3: 00000000278f8000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400