bcachefs (loop5): shutting down VFS: Busy inodes after unmount of loop5 (bcachefs) ------------[ cut here ]------------ kernel BUG at fs/super.c:652! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 7403 Comm: syz-executor Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : generic_shutdown_super+0x2b8/0x2bc fs/super.c:650 lr : generic_shutdown_super+0x2b8/0x2bc fs/super.c:650 sp : ffff80009c3f7bc0 x29: ffff80009c3f7bc0 x28: 1fffe0001883b5ca x27: 0000000000000008 x26: 0000000000000003 x25: dfff800000000000 x24: 1fffe000191d9cf0 x23: ffff80008bbdffa0 x22: dfff800000000000 x21: 0000000000000000 x20: ffff80009018d800 x19: ffff0000c8ece668 x18: 0000000000000008 x17: 00000000ffff0000 x16: ffff800083275834 x15: 0000000000000001 x14: 1ffff0001387eec4 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000001 x10: 0000000000ff0100 x9 : 0685e7559a0e6f00 x8 : 0685e7559a0e6f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009c3f7318 x4 : ffff80008fa8f840 x3 : ffff8000832108fc x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000032 Call trace: generic_shutdown_super+0x2b8/0x2bc fs/super.c:650 (P) bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2278 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: f0055960 910d0000 aa1303e1 97cfff31 (d4210000) ---[ end trace 0000000000000000 ]---