Since kernel 5.15, when booting my system, it sometimes (but not always) shows the following trace:
[ 102.453895] ------------[ cut here ]------------
[ 102.453897] WARNING: CPU: 0 PID: 3323 at /var/tmp/portage/x11-drivers/nvidia-drivers-470.62.13/work/kernel/nvidia-drm/nvidia-drm-drv.c:574 nv_drm_exit+0x2b7/0x2c0 [nvidia_drm]
[ 102.453903] Modules linked in: rfcomm snd_hrtimer snd_seq xt_DSCP xt_tcpudp xfs rpcsec_gss_krb5 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_tables ip6table_nat ip6table_mangle ip6table_raw iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw ip_set af_packet nfnetlink ip6table_filter ip6_tables iptable_filter bpfilter bnep snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq_device uas usb_storage mc btusb input_leds btrtl btbcm btintel bluetooth rfkill snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi kvm_intel ledtrig_audio snd_hda_intel ecdh_generic ecc snd_intel_dspcfg snd_hda_codec snd_hda_core kvm snd_pcm irqbypass snd_timer snd soundcore loop fuse ip_tables x_tables hid_steam nvidia_drm(PO) nvidia_modeset(PO) nvidia(PO) efivarfs
[ 102.453932] CPU: 0 PID: 3323 Comm: gst-plugin-scan Tainted: P O 5.15.5-gentoo #1
[ 102.453933] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z68 Pro3, BIOS L2.16A 02/22/2013
[ 102.453934] RIP: 0010:nv_drm_exit+0x2b7/0x2c0 [nvidia_drm]
[ 102.453937] Code: 00 00 48 83 c4 68 c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 48 8b 47 38 48 8b 78 20 48 8b 05 11 5d 00 00 ff 50 28 84 c0 74 01 c3 <0f> 0b c3 66 0f 1f 44 00 00 80 3d 81 b5 00 00 00 41 56 41 55 41 54
[ 102.453939] RSP: 0018:ffff970f8b1b3bf0 EFLAGS: 00010246
[ 102.453940] RAX: 0000000000000000 RBX: ffff9601f0aa8600 RCX: 0000000000000008
[ 102.453941] RDX: ffffffffc26e9dd8 RSI: 0000000000000296 RDI: ffffffffc26e9da0
[ 102.453942] RBP: ffff960042006800 R08: 0000000000000008 R09: ffff970f8b1b3bd8
[ 102.453943] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9601f8cc1000
[ 102.453943] R13: 0000000000000000 R14: ffff9601f0aa8610 R15: 0000000040be8da8
[ 102.453944] FS: 00007f5e1bcf9740(0000) GS:ffff96074f200000(0000) knlGS:0000000000000000
[ 102.453945] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 102.453946] CR2: 0000563293b94dd8 CR3: 00000002bb65d004 CR4: 00000000001706f0
[ 102.453947] Call Trace:
[ 102.453949] <TASK>
[ 102.453949] drm_new_set_master+0x87/0x100
[ 102.453956] drm_master_open+0x7e/0xb0
[ 102.453958] drm_open+0xf0/0x230
[ 102.453961] drm_stub_open+0xa3/0x120
[ 102.453963] chrdev_open+0xaa/0x210
[ 102.453966] ? cdev_device_add+0x80/0x80
[ 102.453968] do_dentry_open+0x137/0x390
[ 102.453970] path_openat+0xa89/0xdf0
[ 102.453973] ? uevent_show+0xca/0xe0
[ 102.453975] ? kfree+0xa0/0x1b0
[ 102.453978] do_filp_open+0x9a/0x120
[ 102.453980] ? kernfs_fop_release+0x4d/0x90
[ 102.453983] ? kfree+0xa0/0x1b0
[ 102.453984] ? alloc_fd+0xaf/0x170
[ 102.453986] do_sys_openat2+0x75/0x130
[ 102.453987] __x64_sys_openat+0x40/0x70
[ 102.453989] do_syscall_64+0x35/0x80
[ 102.453992] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 102.453995] RIP: 0033:0x7f5e1c271e27
[ 102.453997] Code: 25 00 00 41 00 3d 00 00 41 00 74 47 64 8b 04 25 18 00 00 00 85 c0 75 6b 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 95 00 00 00 48 8b 54 24 28 64 48 2b 14 25
[ 102.453997] RSP: 002b:00007ffd0b0f8430 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 102.453999] RAX: ffffffffffffffda RBX: 0000563293b8d120 RCX: 00007f5e1c271e27
[ 102.454000] RDX: 0000000000080002 RSI: 0000563293b93da0 RDI: 00000000ffffff9c
[ 102.454000] RBP: 0000563293b93da0 R08: 0000000000000007 R09: 0000563293b93dc0
[ 102.454001] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080002
[ 102.454002] R13: 0000563293b93da0 R14: 0000563293b92930 R15: 00007f5e1bcd26ab
[ 102.454003] </TASK>
[ 102.454004] ---[ end trace 36fe109d8c28ca29 ]---
This seems to have no obvious consequences, the system boots just fine. But maybe related are kwin crashes showing the following problems when starting Proton games, or videos and Chrome websites go blank for short amounts of times during playing games also showing such errors:
[133683.658265] NVRM: GPU at PCI:0000:01:00: GPU-2a29877e-3d43-ef88-b9ba-346757578386
[133683.658272] NVRM: Xid (PCI:0000:01:00): 69, pid=245483, Class Error: ChId 0040, Class 0000902d, Offset 00000250, Data ffffffff, ErrorCode 0000000c
[140373.732684] NVRM: Xid (PCI:0000:01:00): 69, pid=748971, Class Error: ChId 0040, Class 0000902d, Offset 00000250, Data ffffffff, ErrorCode 0000000c
[140402.329243] NVRM: Xid (PCI:0000:01:00): 69, pid=787738, Class Error: ChId 0040, Class 0000902d, Offset 00000250, Data ffffffff, ErrorCode 0000000c
[140432.271852] NVRM: Xid (PCI:0000:01:00): 69, pid=787902, Class Error: ChId 0040, Class 0000902d, Offset 00000250, Data ffffffff, ErrorCode 0000000c
nvidia-bug-report.log.gz (684,7 KB)