bcachefs (loop4): shutting down
VFS: Busy inodes after unmount of loop4 (bcachefs)
------------[ cut here ]------------
kernel BUG at fs/super.c:652!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6417 Comm: syz-executor Not tainted 6.13.0-rc3-syzkaller-g06a573612678 #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 : ffff80009bfe7bc0
x29: ffff80009bfe7bc0 x28: 1fffe0001bc7447a x27: 0000000000000008
x26: 0000000000000003 x25: dfff800000000000 x24: 1fffe0001be8f8f0
x23: ffff80008bbdff60 x22: dfff800000000000 x21: 0000000000000000
x20: ffff80009018d800 x19: ffff0000df47c668 x18: 0000000000000008
x17: 00000000ffff0000 x16: ffff800083275834 x15: 0000000000000001
x14: 1ffff000137fcec4 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : ae2ee2e99200f300
x8 : ae2ee2e99200f300 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80009bfe7318 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 910c0000 aa1303e1 97cfff31 (d4210000) 
---[ end trace 0000000000000000 ]---