Using KDE plasma with two sessions (in Ctrl+F7 and Ctrl+F8).

Linux version 5.15.12-1-default (geeko@buildhost) (gcc (SUSE Linux) 11.2.1
20211124 [revision 7510c23c1ec53aa4a62705f0384079661342ff7b], GNU ld (GNU
Binutils; openSUSE Tumbleweed) 2.37.20211112-3) #1 SMP Wed Dec 29 14:50:16 UTC
2021 (375fcb8)

Jan  7 19:06:29 torresj kernel: ------------[ cut here ]------------
Jan  7 19:06:29 torresj kernel: WARNING: CPU: 2 PID: 28917 at
drivers/gpu/drm/ttm/ttm_bo.c:409 ttm_bo_release+0x2e3/0x310 [ttm]
Jan  7 19:06:29 torresj kernel: Modules linked in: xt_nat veth xt_MASQUERADE
nf_conntrack_netlink xfrm_user xfrm_algo xt_addrtype overlay snd_seq_dummy
snd_hrtimer ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4
xt_conntrack nft_chain_nat nf_nat nf_conntrack_netbios_ns
nf_conntrack_broadcast xt_CT nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
xt_tcpudp nft_counter ip6_tables rfkill nft_compat ip_set nf_tables libcrc32c
nfnetlink vboxnetadp(O) vboxnetflt(O) vboxdrv(O) snd_seq snd_seq_device
snd_pcm_oss snd_mixer_oss dmi_sysfs it87 hwmon_vid usblp edac_mce_amd kvm_amd
ccp kvm snd_hda_codec_realtek snd_hda_codec_generic irqbypass ledtrig_audio
snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi pcspkr
snd_hda_codec snd_hda_core snd_hwdep snd_pcm wmi_bmof k10temp r8169 snd_timer
realtek snd mdio_devres i2c_piix4 libphy soundcore tiny_power_button button
acpi_cpufreq binfmt_misc fuse configfs ip_tables x_tables ext4 mbcache jbd2 sg
br_netfilter bridge stp llc
Jan  7 19:06:29 torresj kernel:  dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc
scsi_dh_alua msr hid_generic aoe usbhid uas usb_storage ohci_pci serio_raw
sp5100_tco xhci_pci xhci_pci_renesas ehci_pci xhci_hcd oh
ci_hcd ehci_hcd usbcore wmi radeon i2c_algo_bit drm_ttm_helper ttm
drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec rc_core drm
Jan  7 19:06:29 torresj kernel: CPU: 2 PID: 28917 Comm: Xorg.bin Tainted: G    
      O      5.15.12-1-default #1 openSUSE Tumbleweed
dacaf19d133e8023737b25567dc90a32d973f26e
Jan  7 19:06:29 torresj kernel: Hardware name: Gigabyte Technology Co., Ltd.
GA-890FXA-UD5/GA-890FXA-UD5, BIOS F6 11/24/2010
Jan  7 19:06:29 torresj kernel: RIP: 0010:ttm_bo_release+0x2e3/0x310 [ttm]
Jan  7 19:06:29 torresj kernel: Code: e8 92 ae d5 db e9 ac fd ff ff 48 8b 7d 98
b9 4c 1d 00 00 31 d2 be 01 00 00 00 e8 88 cf d5 db 48 8b 45 e8 eb 9d 4c 89 e0
eb 98 <0f> 0b e9 3c fd ff ff e8 a1 ac d5 db e9 f0 fe
 ff ff be 03 00 00 00
Jan  7 19:06:29 torresj kernel: RSP: 0018:ffffacf481a5fdb0 EFLAGS: 00010202
Jan  7 19:06:29 torresj kernel: RAX: 0000000000000001 RBX: ffffacf481a5fdf0
RCX: 0000000000000000
Jan  7 19:06:29 torresj kernel: RDX: 0000000000000001 RSI: ffff8d4e96b603c0
RDI: ffff8d518b2c51d8
Jan  7 19:06:29 torresj kernel: RBP: ffff8d518b2c51d8 R08: ffff8d518b2c51d8
R09: 0000000000000064
Jan  7 19:06:29 torresj kernel: R10: 0000000000000010 R11: ffff8d4f95753b50
R12: ffff8d4e88ce46f0
Jan  7 19:06:29 torresj kernel: R13: ffff8d518b2c5078 R14: ffff8d5138c8ccc0
R15: 0000000000000000
Jan  7 19:06:29 torresj kernel: FS:  00007fcc13d6cd80(0000)
GS:ffff8d519fc80000(0000) knlGS:0000000000000000
Jan  7 19:06:29 torresj kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jan  7 19:06:29 torresj kernel: CR2: 000055c5d5046bb0 CR3: 000000021b0d6000
CR4: 00000000000006e0
Jan  7 19:06:29 torresj kernel: Call Trace:
Jan  7 19:06:29 torresj kernel:  <TASK>
Jan  7 19:06:29 torresj kernel:  radeon_bo_unref+0x1a/0x30 [radeon
5f048eaabec9bd1cd52ebd969c19efee79c13c16]
Jan  7 19:06:29 torresj kernel:  radeon_gem_object_free+0x30/0x50 [radeon
5f048eaabec9bd1cd52ebd969c19efee79c13c16]
Jan  7 19:06:29 torresj kernel:  drm_gem_dmabuf_release+0x36/0x50 [drm
adb026bbd7eb07105bd885f795aa476263c57532]
Jan  7 19:06:29 torresj kernel:  dma_buf_release+0x3a/0x90
Jan  7 19:06:29 torresj kernel:  __dentry_kill+0xfa/0x170
Jan  7 19:06:29 torresj kernel:  __fput+0xe3/0x250
Jan  7 19:06:29 torresj kernel:  task_work_run+0x65/0xa0
Jan  7 19:06:29 torresj kernel:  exit_to_user_mode_prepare+0x224/0x230
Jan  7 19:06:29 torresj kernel:  syscall_exit_to_user_mode+0x18/0x40
Jan  7 19:06:29 torresj kernel:  do_syscall_64+0x69/0x80
Jan  7 19:06:29 torresj kernel:  ? do_user_addr_fault+0x1de/0x680
Jan  7 19:06:29 torresj kernel:  ? exit_to_user_mode_prepare+0x15f/0x230
Jan  7 19:06:29 torresj kernel:  ? exc_page_fault+0x68/0x130
Jan  7 19:06:29 torresj kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
Jan  7 19:06:29 torresj kernel: RIP: 0033:0x7fcc142d488b
Jan  7 19:06:29 torresj kernel: Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff
5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00
0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 5d 75 0f 00 f7 d8 64 89 01 48
Jan  7 19:06:29 torresj kernel: RSP: 002b:00007ffc3cbd5328 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
Jan  7 19:06:29 torresj kernel: RAX: 0000000000000000 RBX: 00007ffc3cbd5378
RCX: 00007fcc142d488b
Jan  7 19:06:29 torresj kernel: RDX: 00007ffc3cbd5378 RSI: 0000000040086409
RDI: 0000000000000013
Jan  7 19:06:29 torresj kernel: RBP: 0000000040086409 R08: 000055c5d480f500
R09: 0000000000000000
Jan  7 19:06:29 torresj kernel: R10: 00000000000050d2 R11: 0000000000000246
R12: 000055c5d2cc0928
Jan  7 19:06:29 torresj kernel: R13: 0000000000000013 R14: 000055c5d51e71e0
R15: 00007fcc0a51d010
Jan  7 19:06:29 torresj kernel:  </TASK>
Jan  7 19:06:29 torresj kernel: ---[ end trace 8fa1280a5aa218ff ]---