Backtrace

WARNING: CPU: 4 PID: 170749 at drivers/gpu/drm/nouveau/nvkm/subdev/bar/g84.c:35 g84_bar_flush+0xae/0xc0 [nouveau]
Modules linked in: snd_usb_audio hid_sony snd_usbmidi_lib ff_memless snd_rawmidi uinput ccm snd_seq_dummy snd_hrtimer rfcomm 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 ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat intel_rapl_msr iwldvm intel_rapl_common snd_hda_codec_realtek snd_hda_codec_generic uvcvideo ledtrig_audio mac80211 snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp videobuf2_vmalloc snd_hda_intel videobuf2_memops videobuf2_v4l2 videobuf2_common snd_intel_dspcfg soundwire_intel soundwire_generic_allocation videodev libarc4 snd_soc_core mc coretemp snd_compress snd_pcm_dmaengine soundwire_cadence iTCO_wdt
 snd_hda_codec intel_pmc_bxt kvm_intel btusb btrtl snd_hda_core iTCO_vendor_support at24 kvm ac97_bus snd_hwdep btbcm i2c_i801 iwlwifi snd_seq asus_nb_wmi mei_hdcp snd_seq_device irqbypass btintel asus_wmi snd_pcm rapl intel_cstate bluetooth i2c_smbus sparse_keymap intel_uncore pcspkr joydev snd_timer snd wmi_bmof soundcore mei_me mei cfg80211 ecdh_generic lpc_ich ecc rfkill asus_wireless zram ip_tables hid_logitech_hidpp uas usb_storage i915 nouveau drm_ttm_helper ttm i2c_algo_bit drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel drm mxm_wmi ghash_clmulni_intel serio_raw alx hid_logitech_dj mdio wmi video fuse
CPU: 4 PID: 170749 Comm: kworker/4:1 Tainted: G        W         5.11.12-300.fc34.x86_64 #1
Hardware name: ASUSTeK COMPUTER INC. N56VM/N56VM, BIOS N56VM.214 08/28/2012
Workqueue: events nouveau_cli_work [nouveau]
RIP: 0010:g84_bar_flush+0xae/0xc0 [nouveau]
Code: 8b 40 10 48 8b 78 10 4c 8b 6f 50 4d 85 ed 75 03 4c 8b 2f e8 e4 fc 34 da 4c 89 ea 48 c7 c7 30 21 5d c0 48 89 c6 e8 f1 f8 6e da <0f> 0b eb b8 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00
RSP: 0018:ffffa779e1567aa8 EFLAGS: 00010096
RAX: 000000000000001d RBX: ffff8910c8c84000 RCX: 0000000000000027
RDX: ffff8913def18ac8 RSI: 0000000000000001 RDI: ffff8913def18ac0
RBP: ffff8910c0bbb948 R08: ffffffff9ba64ec0 R09: 000000009c548eff
R10: ffffffffffffffff R11: ffffffffffffffff R12: 0000000000000292
R13: ffff8910c1398410 R14: ffff89111d993ae0 R15: ffff89122ea79000
FS:  0000000000000000(0000) GS:ffff8913def00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561e3c9e5158 CR3: 000000015d89a004 CR4: 00000000001706e0
Call Trace:
 nv50_instobj_release+0x2f/0xc0 [nouveau]
 nvkm_vmm_iter.constprop.0+0x72f/0x7e0 [nouveau]
 ? update_sd_lb_stats.constprop.0+0xe7/0x870
 ? sugov_update_single_freq+0xb0/0x1a0
 nvkm_vmm_put_locked+0xfd/0x260 [nouveau]
 ? nvkm_vmm_ptes_sparse+0x1c0/0x1c0 [nouveau]
 ? gf100_vmm_invalidate_pdb+0x30/0x30 [nouveau]
 nvkm_uvmm_mthd+0x3d3/0x760 [nouveau]
 ? check_preempt_wakeup+0xf8/0x250
 nvkm_ioctl+0xdc/0x180 [nouveau]
 nvif_object_mthd+0x104/0x130 [nouveau]
 ? sched_clock+0x5/0x10
 ? sched_clock_cpu+0xc/0xa0
 nvif_vmm_put+0x37/0x50 [nouveau]
 nouveau_vma_del+0x58/0xa0 [nouveau]
 nouveau_gem_object_delete_work+0x26/0x40 [nouveau]
 nouveau_cli_work+0xcc/0x120 [nouveau]
 process_one_work+0x1ec/0x380
 worker_thread+0x53/0x3e0
 ? process_one_work+0x380/0x380
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x22/0x30