Backtrace

WARNING: CPU: 2 PID: 93557 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110
Modules linked in: vhost_net vhost vhost_iotlb tap tun xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nft_compat nf_nat_tftp nf_conntrack_tftp bridge stp llc tls uinput rfcomm snd_seq_dummy snd_hrtimer nvidia_drm(PO) nvidia_modeset(PO) nvidia_uvm(PO) nft_objref 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 nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nvidia(PO) ip_set nf_tables nfnetlink qrtr bnep snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof sunrpc snd_sof_utils soundwire_bus snd_soc_skl snd_hda_codec_hdmi snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_realtek snd_soc_core snd_hda_codec_generic intel_rapl_msr snd_compress intel_rapl_common ac97_bus
 snd_pcm_dmaengine iwlmvm snd_hda_intel intel_tcc_cooling x86_pkg_temp_thermal vfat snd_intel_dspcfg intel_powerclamp snd_intel_sdw_acpi fat coretemp snd_hda_codec mac80211 snd_hda_core kvm_intel snd_hwdep libarc4 mei_hdcp mei_pxp btusb iTCO_wdt snd_seq intel_pmc_bxt iTCO_vendor_support kvm btrtl uvcvideo snd_seq_device iwlwifi irqbypass btbcm videobuf2_vmalloc rapl videobuf2_memops btintel snd_pcm asus_wmi videobuf2_v4l2 intel_cstate btmtk ledtrig_audio intel_uncore snd_timer sparse_keymap videobuf2_common platform_profile bluetooth snd cfg80211 wmi_bmof i2c_i801 pcspkr mei_me soundcore i2c_smbus videodev joydev mei idma64 mc rfkill intel_pch_thermal acpi_pad acpi_tad zram i915 nvme drm_buddy drm_display_helper nvme_core cec hid_multitouch crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic mxm_wmi r8169 ghash_clmulni_intel serio_raw nvme_common ttm i2c_hid_acpi i2c_hid wmi video pinctrl_cannonlake ip6_tables ip_tables fuse
CPU: 2 PID: 93557 Comm: UnityGfxDeviceW Tainted: P        W  O       6.0.10-200.fc36.x86_64 #1
Hardware name: SLIMBOOK PROX14/SLIMBOOK, BIOS N.1.01 06/21/2019
RIP: 0010:refcount_warn_saturate+0xba/0x110
Code: 01 01 e8 61 58 66 00 0f 0b c3 cc cc cc cc 80 3d ee c3 bd 01 00 75 85 48 c7 c7 d0 9d 7c 88 c6 05 de c3 bd 01 01 e8 3e 58 66 00 <0f> 0b c3 cc cc cc cc 80 3d c9 c3 bd 01 00 0f 85 5e ff ff ff 48 c7
RSP: 0018:ffffa3604176ba20 EFLAGS: 00010296
RAX: 0000000000000026 RBX: ffff8efd3d070130 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff887b08f2 RDI: 00000000ffffffff
RBP: ffffa3604176ba28 R08: 0000000000000000 R09: ffffa3604176b8c0
R10: 0000000000000003 R11: ffffffff89146328 R12: ffff8efd37df80e0
R13: 0000000000000001 R14: ffff8efd3d070168 R15: ffff8efde85b8800
FS:  00007ff684bfd640(0000) GS:ffff8efeadc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001bdbcc0 CR3: 0000000162522006 CR4: 00000000003726e0
Call Trace:
 <TASK>
 dma_buf_poll_add_cb+0xda/0x120
 dma_buf_poll+0x177/0x270
 do_sys_poll+0x2b9/0x5e0
 ? poll_initwait+0x40/0x40
 ? __pollwait+0xe0/0xe0
 __x64_sys_poll+0x3a/0x120
 do_syscall_64+0x58/0x80
 ? syscall_exit_to_user_mode+0x17/0x40
 ? do_syscall_64+0x67/0x80
 ? __irq_exit_rcu+0x3d/0x140
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff7b25171fd
Code: e5 48 83 ec 20 89 55 ec 48 89 75 f0 48 89 7d f8 e8 98 cf f8 ff 8b 55 ec 48 8b 75 f0 41 89 c0 48 8b 7d f8 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2b 44 89 c7 89 45 f8 e8 f0 cf f8 ff 8b 45 f8
RSP: 002b:00007ff684bfc150 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007ff7b25171fd
RDX: 00000000ffffffff RSI: 0000000000000001 RDI: 00007ff684bfc188
RBP: 00007ff684bfc170 R08: 0000000000000000 R09: 00007ff6605b90f0
R10: 00007fffb8397080 R11: 0000000000000293 R12: 00000000033596f0
R13: 00007ff660409638 R14: 00007ff660409830 R15: 0000000001f0dfa0
 </TASK>