gfs2: fsid=syz:syz.0: first mount done, others may mount
BUG: Dentry 00000000cb363312{i=925,n=/}  still in use (3) [unmount of gfs2 loop0]
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4680 at fs/dcache.c:1681 umount_check+0x180/0x1bc fs/dcache.c:1672
Modules linked in:
CPU: 0 PID: 4680 Comm: syz.0.73 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : umount_check+0x180/0x1bc fs/dcache.c:1672
lr : umount_check+0x180/0x1bc fs/dcache.c:1672
sp : ffff8000213277a0
x29: ffff8000213277a0 x28: ffff0000f5243780 x27: ffff800021327a40
x26: dfff800000000000 x25: dfff800000000000 x24: ffff0000dcdb6000
x23: dfff800000000000 x22: ffff8000157fece0 x21: 0000000000000003
x20: 0000000000000925 x19: ffff0000f5243780 x18: 0000000000000000
x17: 756f6d6e755b2029 x16: ffff8000082d25ac x15: 0000000000000002
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000
x11: 0000000000006ab7 x10: ffff80002242c000 x9 : 551e764be8e94100
x8 : 551e764be8e94100 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021327278 x4 : ffff8000151a4920 x3 : ffff80000a8467ac
x2 : ffff00019f6bcd10 x1 : 0000000100000001 x0 : 0000000000000051
Call trace:
 umount_check+0x180/0x1bc fs/dcache.c:1672
 d_walk+0x68/0x654 fs/dcache.c:1367
 do_one_tree+0x40/0xf0 fs/dcache.c:1688
 shrink_dcache_for_umount+0x68/0x114 fs/dcache.c:1704
 generic_shutdown_super+0x68/0x324 fs/super.c:473
 kill_block_super+0x70/0xdc fs/super.c:1470
 gfs2_kill_sb+0xc0/0xd4 fs/gfs2/ops_fstype.c:-1
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 gfs2_thaw_super+0x184/0x254 fs/gfs2/super.c:828
 do_vfs_ioctl+0xfb4/0x206c fs/ioctl.c:-1
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 104344
hardirqs last  enabled at (104343): [<ffff8000083086f0>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (104344): [<ffff80001195cc30>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (104292): [<ffff8000080309e0>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (104290): [<ffff8000080309ac>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---