ocfs2: Unmounting device (7,4) on (node local) VFS: Busy inodes after unmount of loop4 (ocfs2) ------------[ cut here ]------------ kernel BUG at fs/super.c:697! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 13433 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 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 ac 59 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 60 ab d7 8a 48 89 de e8 63 f9 89 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:ffffc90003347d20 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff888076f8e660 RCX: 5fd57305ab6e6500 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100edf1cf2 R08: ffff8880b8e28c13 R09: 1ffff110171c5182 R10: dffffc0000000000 R11: ffffed10171c5183 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d634360 R15: ffff888076f8e790 FS: 00005555897a6500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb5b76ecfeb CR3: 0000000063582000 CR4: 00000000003506f0 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1660 deactivate_locked_super+0x97/0x100 fs/super.c:481 cleanup_mnt+0x43b/0x4d0 fs/namespace.c:1259 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302 do_syscall_64+0x61/0xa0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f5cad99d1d7 Code: a2 c7 05 bc e3 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffdfaae8628 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f5cada31c3b RCX: 00007f5cad99d1d7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdfaae86e0 RBP: 00007ffdfaae86e0 R08: 00007ffdfaae96e0 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfaae9770 R13: 00007f5cada31c3b R14: 00000000000be4ba R15: 00007ffdfaae97b0 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 ac 59 f0 ff 49 8b 16 48 81 c3 60 06 00 00 48 c7 c7 60 ab d7 8a 48 89 de e8 63 f9 89 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:ffffc90003347d20 EFLAGS: 00010246 RAX: 000000000000002f RBX: ffff888076f8e660 RCX: 5fd57305ab6e6500 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100edf1cf2 R08: ffff8880b8e28c13 R09: 1ffff110171c5182 R10: dffffc0000000000 R11: ffffed10171c5183 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8d634360 R15: ffff888076f8e790 FS: 00005555897a6500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556e839c0950 CR3: 0000000063582000 CR4: 00000000003506f0