Backtrace

BUG: Dentry 00000000898fc215{i=1000000000023,n=/}  still in use (2) [unmount of cifs cifs]
WARNING: CPU: 4 PID: 601562 at fs/dcache.c:1528 umount_check+0x56/0x70
Modules linked in: snd_seq_dummy snd_hrtimer nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) xt_conntrack xt_MASQUERADE nf_conntrack_netlink xt_addrtype nft_compat br_netfilter bridge stp llc nls_utf8 cifs cifs_arc4 nls_ucs2_utils cifs_md4 dns_resolver netfs nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject overlay nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables qrtr intel_rapl_msr intel_rapl_common binfmt_misc x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_realtek vfat snd_hda_codec_generic fat snd_hda_scodec_component snd_hda_codec_hdmi kvm snd_hda_intel snd_usb_audio snd_intel_dspcfg snd_intel_sdw_acpi iTCO_wdt intel_pmc_bxt snd_usbmidi_lib snd_hda_codec snd_ump eeepc_wmi snd_rawmidi rapl iTCO_vendor_support asus_wmi snd_hda_core mc sparse_keymap snd_hwdep platform_profile intel_cstate snd_seq rfkill snd_seq_device video wmi_bmof snd_pcm
 intel_uncore pcspkr i2c_i801 i2c_smbus mei_me snd_timer lpc_ich snd e1000e mei soundcore squashfs auth_rpcgss sunrpc loop nfnetlink zram crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic mxm_wmi ghash_clmulni_intel sha512_ssse3 sha256_ssse3 firewire_ohci sha1_ssse3 firewire_core crc_itu_t wmi ip6_tables ip_tables fuse
CPU: 4 PID: 601562 Comm: umount Tainted: P S         OE      6.10.10-200.fc40.x86_64 #1
Hardware name: System manufacturer System Product Name/SABERTOOTH X79, BIOS 4801 07/25/2014
RIP: 0010:umount_check+0x56/0x70
Code: 8d 88 c0 03 00 00 48 8b 40 28 4c 8b 08 48 8b 46 30 48 85 c0 74 04 48 8b 50 50 51 48 c7 c7 c8 d1 b8 8f 48 89 f1 e8 7a 0d c3 ff <0f> 0b 58 31 c0 c3 cc cc cc cc 41 83 f8 01 75 bf eb ad 0f 1f 84 00
RSP: 0018:ffffbed3c0943dc0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000046cac RCX: 0000000000000027
RDX: ffff9dfa9fa218c8 RSI: 0000000000000001 RDI: ffff9dfa9fa218c0
RBP: ffff9df3c7388180 R08: 0000000000000000 R09: 0000000000000008
R10: ffff9df38316a800 R11: ffffbed3c6459220 R12: ffffffff8e4f3390
R13: ffff9df38c271800 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f02eb2e2800(0000) GS:ffff9dfa9fa00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055db27f0c5d8 CR3: 0000000141878005 CR4: 00000000001706f0
Call Trace:
 <TASK>
 ? umount_check+0x56/0x70
 ? __warn.cold+0x8e/0xe8
 ? umount_check+0x56/0x70
 ? report_bug+0xff/0x140
 ? handle_bug+0x3c/0x80
 ? exc_invalid_op+0x17/0x70
 ? asm_exc_invalid_op+0x1a/0x20
 ? __pfx_umount_check+0x10/0x10
 ? umount_check+0x56/0x70
 d_walk+0x61/0x280
 shrink_dcache_for_umount+0x4d/0x130
 generic_shutdown_super+0x22/0x100
 kill_anon_super+0x16/0x40
 cifs_kill_sb+0x46/0x50 [cifs]
 deactivate_locked_super+0x33/0xb0
 cleanup_mnt+0xba/0x150
 task_work_run+0x5c/0x90
 syscall_exit_to_user_mode+0x21a/0x220
 do_syscall_64+0x8e/0x160
 ? exc_page_fault+0x7e/0x180
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f02eb50b3eb
Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 f9 a9 0c 00 f7 d8
RSP: 002b:00007ffe587edb88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000055db27f09c60 RCX: 00007f02eb50b3eb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055db27f0a6f0
RBP: 00007ffe587edc60 R08: 000055db27f0c2e0 R09: 00007f02eb5d6b20
R10: 0000000000000008 R11: 0000000000000246 R12: 000055db27f09d68
R13: 0000000000000000 R14: 000055db27f0a6f0 R15: 000055db27f0b4b0
 </TASK>