Hi,

It does not work here :-(

     Starting Terminate Plymouth Boot Screen...

[ 18.876477] ------------[ cut here ]------------ [ 18.877226] WARNING: CPU: 0 PID: 7 at drivers/gpu/drm/ttm/ttm_bo.c:517 ttm_bo_release+0x2ea/0x340 [ttm] [ 18.878670] Modules linked in: 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 rfkill nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter intel_rapl_msr snd_hda_codec_generic ledtrig_audio snd_hda_intel intel_rapl_common snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core snd_compress snd_pcm_dmaengine joydev soundwire_cadence snd_hda_codec virtio_balloon snd_hda_core ac97_bus snd_hwdep snd_pcm snd_timer snd i2c_piix4 soundcore auth_rpcgss sunrpc fuse zram ip_tables xfs qxl drm_ttm_helper ttm drm_kms_helper cec drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel virtio_net serio_raw virtio_blk virtio_console ata_generic net_failover pata_acpi failover qemu_fw_cfg pkcs8_key_parser [ 18.891569] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G W 5.11.9-200.fc33.x86_64 #1 [ 18.892983] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 [ 18.893849] Workqueue: events qxl_gc_work [qxl] [ 18.894567] RIP: 0010:ttm_bo_release+0x2ea/0x340 [ttm] [ 18.895363] Code: ff ff 49 8b 7f 88 b9 30 75 00 00 31 d2 be 01 00 00 00 e8 19 8f 2e ea 49 8b 47 d8 eb 9e 48 c7 04 24 28 0b 53 c0 48 89 e8 eb 91 <0f> 0b 41 c7 87 9c 00 00 00 00 00 00 00 4c 89 f7 e8 f1 f7 ff ff 49 [ 18.898291] RSP: 0018:ffffb80240043da8 EFLAGS: 00010202 [ 18.899223] RAX: 0000000000000001 RBX: 000000000000000c RCX: 000000000000000c [ 18.900355] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffffffffc0530b28 [ 18.901506] RBP: ffff97a982c5c698 R08: ffff97a9b47462b8 R09: 0000000000000000 [ 18.902677] R10: ffff97a9834a6461 R11: ffff97a9b625d918 R12: ffff97a983623780 [ 18.903822] R13: ffff97a984a9b9e0 R14: ffff97a984a9b800 R15: ffff97a984a9b970 [ 18.904935] FS: 0000000000000000(0000) GS:ffff97a9bec00000(0000) knlGS:0000000000000000 [ 18.906185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.907122] CR2: 000055f7fbbd00b8 CR3: 0000000002556000 CR4: 00000000001506f0 [ 18.908256] Call Trace: [ 18.908645] qxl_bo_unref+0x31/0x50 [qxl] [ 18.909275] qxl_release_free_list+0x49/0xa0 [qxl] [ 18.910014] qxl_release_free+0x72/0xe0 [qxl] [ 18.910706] qxl_garbage_collect+0xbd/0x170 [qxl] [ 18.911437] process_one_work+0x1ec/0x380 [ 18.912089] worker_thread+0x53/0x3e0 [ 18.912676] ? process_one_work+0x380/0x380 [ 18.913375] kthread+0x11b/0x140 [ 18.913870] ? __kthread_bind_mask+0x60/0x60 [ 18.914548] ret_from_fork+0x22/0x30 [ 18.915107] ---[ end trace 64cfbf22572a5df9 ]--- [ 18.917437] ------------[ cut here ]------------ [ 18.918219] WARNING: CPU: 0 PID: 7 at drivers/gpu/drm/ttm/ttm_bo.c:517 ttm_bo_release+0x2ea/0x340 [ttm] [ 18.919628] Modules linked in: 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 rfkill nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter intel_rapl_msr snd_hda_codec_generic ledtrig_audio snd_hda_intel intel_rapl_common snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core snd_compress snd_pcm_dmaengine joydev soundwire_cadence snd_hda_codec virtio_balloon snd_hda_core ac97_bus snd_hwdep snd_pcm snd_timer snd i2c_piix4 soundcore auth_rpcgss sunrpc fuse zram ip_tables xfs qxl drm_ttm_helper ttm drm_kms_helper cec drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel virtio_net serio_raw virtio_blk virtio_console ata_generic net_failover pata_acpi failover qemu_fw_cfg pkcs8_key_parser [ 18.932663] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G W 5.11.9-200.fc33.x86_64 #1 [ 18.934109] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 [ 18.935035] Workqueue: events qxl_gc_work [qxl] [ 18.935772] RIP: 0010:ttm_bo_release+0x2ea/0x340 [ttm] [ 18.936572] Code: ff ff 49 8b 7f 88 b9 30 75 00 00 31 d2 be 01 00 00 00 e8 19 8f 2e ea 49 8b 47 d8 eb 9e 48 c7 04 24 28 0b 53 c0 48 89 e8 eb 91 <0f> 0b 41 c7 87 9c 00 00 00 00 00 00 00 4c 89 f7 e8 f1 f7 ff ff 49 [ 18.939402] RSP: 0018:ffffb80240043da8 EFLAGS: 00010202 [ 18.940288] RAX: 0000000000000001 RBX: 000000000000000f RCX: 000000000000000f [ 18.941368] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffffffffc0530b28 [ 18.942448] RBP: ffff97a982c5c698 R08: ffff97a987d06c38 R09: 0000000000000000 [ 18.943531] R10: ffff97a984169490 R11: 0000000000000000 R12: ffff97a98496d100 [ 18.944634] R13: ffff97a985eabde0 R14: ffff97a985eabc00 R15: ffff97a985eabd70 [ 18.945736] FS: 0000000000000000(0000) GS:ffff97a9bec00000(0000) knlGS:0000000000000000 [ 18.946952] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.947859] CR2: 00007fab815c2d50 CR3: 0000000002bce000 CR4: 00000000001506f0 [ 18.948961] Call Trace: [ 18.949362] qxl_bo_unref+0x31/0x50 [qxl] [ 18.949977] qxl_release_free_list+0x49/0xa0 [qxl] [ 18.950708] qxl_release_free+0x72/0xe0 [qxl] [ 18.951389] qxl_garbage_collect+0xbd/0x170 [qxl] [ 18.952188] process_one_work+0x1ec/0x380 [ 18.952811] worker_thread+0x53/0x3e0 [ 18.953390] ? process_one_work+0x380/0x380 [ 18.954024] kthread+0x11b/0x140 [ 18.954548] ? __kthread_bind_mask+0x60/0x60 [ 18.955267] ret_from_fork+0x22/0x30 [ 18.955839] ---[ end trace 64cfbf22572a5dfa ]---