Hi,
Since upgrading to kernel 5.0.5 my machine crashes on boot after loading Nvidia graphics driver.
The same machine boots without any problems with kernel 4.20.16.
Apr 09 08:45:21 kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel Module 418.56 Fri Mar 15 12:59:26 CDT 2019
Apr 09 08:45:21 kernel: nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 234
Apr 09 08:45:21 kernel: nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 418.56 Fri Mar 15 12:32:40 CDT 2019
Apr 09 08:45:21 kernel: [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
Apr 09 08:45:21 kernel: [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 0
Apr 09 08:45:21 kernel: [drm] [nvidia-drm] [GPU ID 0x00000500] Loading driver
Apr 09 08:45:21 kernel: [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:05:00.0 on minor 1
.
.
Apr 09 08:45:38 kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
Apr 09 08:45:38 kernel: #PF error: [normal kernel read fault]
Apr 09 08:45:38 kernel: PGD 0 P4D 0
Apr 09 08:45:38 kernel: Oops: 0000 [#1] SMP PTI
Apr 09 08:45:38 kernel: CPU: 1 PID: 1560 Comm: Xorg Tainted: P OE 5.0.5-200.fc29.x86_64 #1
Apr 09 08:45:38 kernel: RIP: 0010:nv_dma_map_peer+0xd0/0x160 [nvidia]
Apr 09 08:45:38 kernel: Code: ce e8 b4 fd ff ff 48 8b 5c 24 10 65 48 33 1c 25 28 00 00 00 0f 85 8e 00 00 00 48 83 c4 18 5b 5d 41 5c c3 48 8b 05 c0 ed 12 cc <48> 83 78 40 00 75 ca 49 c1 e2 06 49 8b 78 10 48 89 e6 4b 8d 94 10
Apr 09 08:45:38 kernel: RSP: 0018:ffffb1fdc82ef950 EFLAGS: 00010246
Apr 09 08:45:38 kernel: RAX: 0000000000000000 RBX: ffff90552c1c8ff0 RCX: 0000000000000010
Apr 09 08:45:38 kernel: RDX: 0000000000000001 RSI: ffff90555993e000 RDI: ffff905554581800
Apr 09 08:45:38 kernel: RBP: 00000000c0000000 R08: ffff9055594c1000 R09: 00000000cfffffff
Apr 09 08:45:38 kernel: R10: 0000000000000001 R11: 0000000000010000 R12: 00000000c0000000
Apr 09 08:45:38 kernel: R13: ffff90555993e000 R14: 0000000054581800 R15: ffff90552c1c8fc8
Apr 09 08:45:38 kernel: FS: 00007ff0eaaa5ac0(0000) GS:ffff90555da40000(0000) knlGS:0000000000000000
Apr 09 08:45:38 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 09 08:45:38 kernel: CR2: 0000000000000040 CR3: 00000008178dc002 CR4: 00000000001606e0
Apr 09 08:45:38 kernel: Call Trace:
Apr 09 08:45:38 kernel: _nv029599rm+0x265/0x490 [nvidia]
Apr 09 08:45:38 kernel: ? _nv025113rm+0x17c/0x3f0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv026023rm+0xd7/0x270 [nvidia]
Apr 09 08:45:38 kernel: ? _nv010048rm+0x122/0x1b0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv010043rm+0xc7/0x300 [nvidia]
Apr 09 08:45:38 kernel: ? _nv010059rm+0x286/0x2d0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv020288rm+0x72/0x1e0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv020287rm+0x8cd/0xa40 [nvidia]
Apr 09 08:45:38 kernel: ? _nv006779rm+0x47/0xc0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv020527rm+0x315/0x610 [nvidia]
Apr 09 08:45:38 kernel: ? _nv020429rm+0x149/0x1a0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv020566rm+0x84/0x150 [nvidia]
Apr 09 08:45:38 kernel: ? _nv020567rm+0x218/0x6c0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv026582rm+0x1da/0x280 [nvidia]
Apr 09 08:45:38 kernel: ? _nv032643rm+0x13a/0x1a0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv007920rm+0x111/0x1c0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv007923rm+0x37f/0x3b0 [nvidia]
Apr 09 08:45:38 kernel: ? _nv032740rm+0x57/0x100 [nvidia]
Apr 09 08:45:38 kernel: ? _nv032740rm+0x37/0x100 [nvidia]
Apr 09 08:45:38 kernel: ? _nv007023rm+0x38/0x50 [nvidia]
Apr 09 08:45:38 kernel: ? _nv007023rm+0x19/0x50 [nvidia]
Apr 09 08:45:38 kernel: ? _nv000697rm+0x27/0x30 [nvidia]
Apr 09 08:45:38 kernel: ? _nv000935rm+0x4f9/0x900 [nvidia]
Apr 09 08:45:38 kernel: ? rm_ioctl+0x54/0xb0 [nvidia]
Apr 09 08:45:38 kernel: ? nvidia_ioctl+0x51/0x7c0 [nvidia]
Apr 09 08:45:38 kernel: ? nvidia_ioctl+0x5fa/0x7c0 [nvidia]
Apr 09 08:45:38 kernel: ? nvidia_frontend_unlocked_ioctl+0x3a/0x50 [nvidia]
Apr 09 08:45:38 kernel: ? do_vfs_ioctl+0xa4/0x630
Apr 09 08:45:38 kernel: ? set_close_on_exec+0x2a/0x60
Apr 09 08:45:38 kernel: ? do_fcntl+0x524/0x610
Apr 09 08:45:38 kernel: ? kmem_cache_free+0x1b1/0x1e0
Apr 09 08:45:38 kernel: ? ksys_ioctl+0x60/0x90
Apr 09 08:45:38 kernel: ? __x64_sys_fcntl+0x8b/0xb0
Apr 09 08:45:38 kernel: ? __x64_sys_ioctl+0x16/0x20
Apr 09 08:45:38 kernel: ? do_syscall_64+0x5b/0x160
Apr 09 08:45:38 kernel: ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
Apr 09 08:45:38 kernel: Modules linked in: iptable_mangle xt_CHECKSUM iptable_nat ipt_MASQUERADE nf_nat_ipv4 nf_nat xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c tun bridge stp llc devlink ebtable_filter ebtables ip6table_filter ip6_tables vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) sunrpc mei_wdt nvidia_drm(POE) nvidia_modeset(POE) nvidia_uvm(OE) nvidia(POE) intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass snd_hda_codec_hdmi joydev snd_hda_codec_realtek snd_hda_codec_generic eeprom ledtrig_audio iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_codec crct10dif_pclmul crc32_pclmul snd_hda_core dell_smm_hwmon snd_hwdep snd_seq ghash_clmulni_intel intel_cstate snd_seq_device drm_kms_helper intel_uncore snd_pcm intel_rapl_perf drm dell_wmi dell_smbios wmi_bmof intel_wmi_thunderbolt i2c_i801 dcdbas sparse_keymap snd_timer dell_wmi_descriptor snd ipmi_devintf mei_me ipmi_msghandler lpc_ich mei soundcore pcc_cpufreq binfmt_misc uas usb_storage
Apr 09 08:45:38 kernel: e1000e crc32c_intel wmi video i2c_dev
Apr 09 08:45:38 kernel: CR2: 0000000000000040
Apr 09 08:45:38 kernel: —[ end trace e057721395587ebb ]—
$ lspci | grep -i nvidia
01:00.0 VGA compatible controller: NVIDIA Corporation GK107GL [Quadro K420] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GK107 HDMI Audio Controller (rev a1)
05:00.0 VGA compatible controller: NVIDIA Corporation GK107GL [Quadro K420] (rev a1)
05:00.1 Audio device: NVIDIA Corporation GK107 HDMI Audio Controller (rev a1)
Regards,