Backtrace

WARNING: CPU: 1 PID: 1625 at drivers/gpu/drm/ttm/ttm_bo.c:356 ttm_bo_release+0x2f9/0x310 [ttm]
Modules linked in: tls uinput snd_seq_dummy snd_hrtimer 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 ip_set rfkill nf_tables nfnetlink qrtr sunrpc binfmt_misc snd_hda_codec_analog snd_hda_codec_generic iTCO_wdt ppdev intel_pmc_bxt at24 iTCO_vendor_support gpio_ich mei_wdt dell_wmi snd_hda_codec_hdmi snd_hda_intel dell_smbios coretemp joydev snd_intel_dspcfg dcdbas ledtrig_audio wmi_bmof sparse_keymap snd_intel_sdw_acpi video snd_hda_codec dell_wmi_descriptor snd_hda_core pcspkr snd_hwdep snd_seq snd_seq_device lpc_ich snd_pcm i2c_i801 i2c_smbus mei_me snd_timer snd parport_pc mei soundcore parport zram amdgpu iommu_v2 gpu_sched drm_buddy radeon hid_logitech_hidpp drm_ttm_helper ttm serio_raw e1000e hid_logitech_dj drm_display_helper ata_generic cec pata_acpi wmi ip6_tables ip_tables fuse
CPU: 1 PID: 1625 Comm: gnome-shell Not tainted 6.0.5-200.fc36.x86_64 #1
Hardware name: Dell Inc. OptiPlex 960                 /0G261D, BIOS A18 08/06/2013
RIP: 0010:ttm_bo_release+0x2f9/0x310 [ttm]
Code: 00 e8 eb f9 40 ca 48 8b 43 e8 eb a7 be 03 00 00 00 e8 cb 06 19 ca e9 03 fe ff ff e8 11 d5 40 ca e9 f9 fd ff ff 4c 89 e0 eb 89 <0f> 0b 48 83 7b 20 00 0f 84 2f fd ff ff 0f 0b e9 28 fd ff ff 0f 0b
RSP: 0018:ffffb05e025ffcc8 EFLAGS: 00010206
RAX: 0000000000000001 RBX: ffff8ca5e42269c8 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffff8ca5e42269c8
RBP: ffff8ca5e4226878 R08: 0000000000000000 R09: 0000000000400020
R10: ffff8ca5f599a6f0 R11: ffffb05e025ffd18 R12: ffff8ca6c8f186f0
R13: ffff8ca5fdb6d458 R14: ffff8ca5fdb6d440 R15: 0000000000000012
FS:  00007f11bde1e5c0(0000) GS:ffff8ca6d3e40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000045275ba8000 CR3: 000000003db6e000 CR4: 00000000000406e0
Call Trace:
 <TASK>
 radeon_bo_unref+0x1a/0x30 [radeon]
 radeon_gem_object_free+0x20/0x30 [radeon]
 drm_gem_handle_delete+0x8c/0xd0
 ? drm_gem_handle_create+0x40/0x40
 drm_ioctl_kernel+0xa9/0x150
 drm_ioctl+0x22d/0x410
 ? drm_gem_handle_create+0x40/0x40
 radeon_drm_ioctl+0x49/0x80 [radeon]
 __x64_sys_ioctl+0x90/0xd0
 do_syscall_64+0x5b/0x80
 ? syscall_exit_to_user_mode+0x17/0x40
 ? do_syscall_64+0x67/0x80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f11c150748f
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007fff2e0996d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00005589f2eeff30 RCX: 00007f11c150748f
RDX: 00007fff2e099778 RSI: 0000000040086409 RDI: 000000000000000d
RBP: 00007fff2e099778 R08: 0000000000000004 R09: 0000000000000000
R10: 00007f11c1585f90 R11: 0000000000000246 R12: 0000000040086409
R13: 000000000000000d R14: 00005589f2d81f40 R15: 0000000000000000
 </TASK>