Aug 19 13:57:12 hawking kernel: BUG: unable to handle kernel NULL pointer
dereference at 0000000000000037
Aug 19 13:57:12 hawking kernel: IP: nvkm_vmm_unmap_region+0x73/0x210 [nouveau]
Aug 19 13:57:13 hawking kernel: PGD 0 P4D 0 
Aug 19 13:57:13 hawking kernel: Oops: 0000 [#1] SMP PTI
Aug 19 13:57:13 hawking kernel: CPU: 6 PID: 13469 Comm: kscreenlocker_g Not
tainted 4.12.14-lp151.28.13-default #1 openSUSE Leap 15.1
Aug 19 13:57:13 hawking kernel: Hardware name: Dell Inc. Precision
T3600/0PTTT9, BIOS A04 07/05/2012
Aug 19 13:57:13 hawking kernel: task: ffff880095c5a0c0 task.stack:
ffffc9000c6e0000
Aug 19 13:57:13 hawking kernel: RIP: 0010:nvkm_vmm_unmap_region+0x73/0x210
[nouveau]
Aug 19 13:57:13 hawking kernel: RSP: 0018:ffffc9000c6e3c28 EFLAGS: 00010206
Aug 19 13:57:13 hawking kernel: RAX: 000000000004c000 RBX: ffff880432a06400
RCX: 0000000000000000
Aug 19 13:57:13 hawking kernel: RDX: ffff880432a06440 RSI: ffff880435fe3c00
RDI: ffff880432a06438
Aug 19 13:57:13 hawking kernel: RBP: 0000000000000000 R08: ffffffffa044bc10
R09: ffffc90002c0fda0
Aug 19 13:57:13 hawking kernel: R10: ffffffffa044bbe0 R11: ffff880435b63a00
R12: ffff8804354f3400
Aug 19 13:57:13 hawking kernel: R13: ffff8804354f3400 R14: 0000000000000000
R15: ffff8804354f3468
Aug 19 13:57:13 hawking kernel: FS:  00007f4b341528c0(0000)
GS:ffff88043ef80000(0000) knlGS:0000000000000000
Aug 19 13:57:13 hawking kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Aug 19 13:57:13 hawking kernel: CR2: 0000000000000037 CR3: 0000000095c48005
CR4: 00000000000606e0
Aug 19 13:57:13 hawking kernel: Call Trace:
Aug 19 13:57:13 hawking kernel:  nvkm_vmm_put_locked+0x123/0x210 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_vmm_put+0x30/0x50 [nouveau]
Aug 19 13:57:13 hawking kernel:  nv50_instobj_dtor+0x8b/0xb0 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_memory_unref+0x38/0x50 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_gpuobj_del+0x3a/0x50 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_fifo_chan_child_del+0x5d/0x90 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_oproxy_dtor+0x22/0x50 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_object_dtor+0x9e/0x140 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_object_del+0x20/0x80 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_ioctl_del+0x86/0xa0 [nouveau]
Aug 19 13:57:13 hawking kernel:  nvkm_ioctl+0x10a/0x240 [nouveau]
Aug 19 13:57:13 hawking kernel:  usif_ioctl+0x38c/0x6e0 [nouveau]
Aug 19 13:57:13 hawking kernel:  nouveau_drm_ioctl+0xad/0xc0 [nouveau]
Aug 19 13:57:13 hawking kernel:  do_vfs_ioctl+0x90/0x5f0
Aug 19 13:57:13 hawking kernel:  ? do_munmap+0x398/0x480
Aug 19 13:57:13 hawking kernel:  ? syscall_trace_enter+0x121/0x2c0
Aug 19 13:57:13 hawking kernel:  SyS_ioctl+0x74/0x80
Aug 19 13:57:13 hawking kernel:  do_syscall_64+0x7b/0x160
Aug 19 13:57:13 hawking kernel:  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
Aug 19 13:57:13 hawking kernel: RIP: 0033:0x7f4b2f76c587
Aug 19 13:57:13 hawking kernel: RSP: 002b:00007ffce9468088 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
Aug 19 13:57:13 hawking kernel: RAX: ffffffffffffffda RBX: 00005645c5c65ee0
RCX: 00007f4b2f76c587
Aug 19 13:57:13 hawking kernel: RDX: 00007ffce94680d0 RSI: 00000000c0186447
RDI: 000000000000000b
Aug 19 13:57:13 hawking kernel: RBP: 00007ffce94680d0 R08: 00005645c5c47ec0
R09: 0000000000000004
Aug 19 13:57:13 hawking kernel: R10: 0000000000000381 R11: 0000000000000246
R12: 00000000c0186447
Aug 19 13:57:13 hawking kernel: R13: 000000000000000b R14: 00005645c5b9dfa0
R15: 00007f4b30082c20
Aug 19 13:57:13 hawking kernel: Code: f6 43 37 10 48 b8 ff ff ff ff ff ff 03 00
74 17 4c 8b 63 08 4d 39 e7 4d 0f 44 e6 49 83 7c 24 38 00 0f 84 16 01 00 00 48
23 43 30 <f6> 45 37 10 0f 84 f9 00 00 00 48 83 7d 38 00 0f 85 ee 00 00 00 
Aug 19 13:57:13 hawking kernel: Modules linked in: nfsv3 fuse ebtable_filter
ebtables devlink ip6table_filter ip6_tables iptable_filter
nfs_layout_nfsv41_files rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache
af_packet bridge stp llc iscsi_ibft iscsi_boot_sysfs binfmt_misc msr xt_nat
iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack
tun libcrc32c ip_tables x_tables snd_hda_codec_hdmi intel_rapl sb_edac
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_realtek
snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_hda_codec kvm
snd_hda_core snd_hwdep snd_pcm snd_seq snd_seq_device snd_timer irqbypass
crc32_pclmul ghash_clmulni_intel pcbc aesni_intel mei_wdt iTCO_wdt aes_x86_64
ftdi_sio snd dcdbas iTCO_vendor_support pl2303 dell_smm_hwmon i2c_i801
usbserial crypto_simd mei_me
Aug 19 13:57:13 hawking kernel:  e1000e glue_helper ptp pps_core pcspkr lpc_ich
mei cryptd soundcore nfsd auth_rpcgss nfs_acl lockd grace sunrpc hid_generic
usbhid sr_mod cdrom nouveau mxm_wmi wmi video i2c_algo_bit crc32c_intel
drm_kms_helper xhci_pci syscopyarea sysfillrect ehci_pci sysimgblt fb_sys_fops
xhci_hcd ehci_hcd ahci serio_raw ttm libahci usbcore drm
drm_panel_orientation_quirks button megaraid_sas sg nbd dm_multipath dm_mod
scsi_dh_rdac scsi_dh_emc scsi_dh_alua
Aug 19 13:57:13 hawking kernel: CR2: 0000000000000037
Aug 19 13:57:13 hawking kernel: ---[ end trace 2f8d183d36890e21 ]---
Aug 19 13:57:13 hawking kernel: RIP: 0010:nvkm_vmm_unmap_region+0x73/0x210
[nouveau]
Aug 19 13:57:13 hawking kernel: RSP: 0018:ffffc9000c6e3c28 EFLAGS: 00010206
Aug 19 13:57:13 hawking kernel: RAX: 000000000004c000 RBX: ffff880432a06400
RCX: 0000000000000000
Aug 19 13:57:13 hawking kernel: RDX: ffff880432a06440 RSI: ffff880435fe3c00
RDI: ffff880432a06438
Aug 19 13:57:13 hawking kernel: RBP: 0000000000000000 R08: ffffffffa044bc10
R09: ffffc90002c0fda0
Aug 19 13:57:13 hawking kernel: R10: ffffffffa044bbe0 R11: ffff880435b63a00
R12: ffff8804354f3400
Aug 19 13:57:13 hawking kernel: R13: ffff8804354f3400 R14: 0000000000000000
R15: ffff8804354f3468
Aug 19 13:57:13 hawking kernel: FS:  00007f4b341528c0(0000)
GS:ffff88043ef80000(0000) knlGS:0000000000000000
Aug 19 13:57:13 hawking kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Aug 19 13:57:13 hawking kernel: CR2: 0000000000000037 CR3: 0000000095c48005
CR4: 00000000000606e0