[ 3.423255] [drm] Loading tahiti Microcode [ 3.423406] [drm] Internal thermal controller with fan control [ 3.423507] BUG: unable to handle kernel NULL pointer dereference at 0000000000000058 [ 3.423544] PGD 0 P4D 0 [ 3.423555] Oops: 0000 [#1] SMP PTI [ 3.423568] CPU: 2 PID: 421 Comm: systemd-udevd Not tainted 4.20.2-200.fc29.x86_64 #1 [ 3.423600] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20180724_192412-buildhw-07.phx2.fedoraproject.org-1.fc29 04/01/2014 [ 3.423657] RIP: 0010:pcie_capability_read_dword+0x20/0xc0 [ 3.423674] Code: 9c bf ff 0f 1f 80 00 00 00 00 66 66 66 66 90 41 56 41 89 f6 41 55 41 54 55 53 c7 02 00 00 00 00 41 83 e6 03 0f 85 8c 00 00 00 <44> 0f b6 6f 58 45 84 ed 74 37 49 89 d4 89 f3 48 89 fd e8 09 fd ff [ 3.423724] RSP: 0018:ffffa1aa00963880 EFLAGS: 00010246 [ 3.423753] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 3.423773] RDX: ffffa1aa009638b0 RSI: 000000000000002c RDI: 0000000000000000 [ 3.423792] RBP: ffff90f8b2475bb8 R08: ffff90f8b385ddc0 R09: 0000000000040000 [ 3.423812] R10: 0000000000140000 R11: 0000000000000002 R12: ffff90f8b2474000 [ 3.423833] R13: ffff90f8b24e0000 R14: 0000000000000000 R15: 0000000000000000 [ 3.423854] FS: 00007f967dc83940(0000) GS:ffff90f8bbb00000(0000) knlGS:0000000000000000 [ 3.423876] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.423892] CR2: 0000000000000058 CR3: 0000000134b88000 CR4: 00000000000406e0 [ 3.423914] Call Trace: [ 3.423945] pcie_get_speed_cap+0x2a/0xb0 [ 3.423998] si_dpm_init+0x67/0x1250 [radeon] [ 3.424021] ? __hwmon_device_register+0x5d9/0x750 [ 3.424060] radeon_pm_init+0x552/0x720 [radeon] [ 3.424099] si_init+0x242/0x7f0 [radeon] [ 3.424121] ? register_client+0xd2/0x110 [ 3.424154] radeon_device_init+0x6dc/0xda0 [radeon] [ 3.424192] radeon_driver_load_kms+0xc5/0x300 [radeon] [ 3.424224] drm_dev_register+0x113/0x150 [drm] [ 3.424246] drm_get_pci_dev+0x92/0x180 [drm] [ 3.424261] local_pci_probe+0x41/0x90 [ 3.424280] pci_device_probe+0x188/0x1a0 [ 3.424297] really_probe+0xf8/0x3b0 [ 3.424315] driver_probe_device+0xb3/0xf0 [ 3.424329] __driver_attach+0xdd/0x110 [ 3.424343] ? driver_probe_device+0xf0/0xf0 [ 3.424359] bus_for_each_dev+0x76/0xc0 [ 3.424380] ? klist_add_tail+0x3b/0x60 [ 3.424393] bus_add_driver+0x152/0x230 [ 3.424406] ? 0xffffffffc0534000 [ 3.424418] driver_register+0x6b/0xb0 [ 3.424430] ? 0xffffffffc0534000 [ 3.424442] do_one_initcall+0x46/0x1c3 [ 3.424467] ? _cond_resched+0x15/0x30 [ 3.424485] ? kmem_cache_alloc_trace+0x15f/0x1e0 [ 3.424504] do_init_module+0x5a/0x210 [ 3.424523] load_module+0x2076/0x22d0 [ 3.424540] ? __get_free_pages+0xd/0x30 [ 3.424554] ? __do_sys_init_module+0x13d/0x180 [ 3.425126] __do_sys_init_module+0x13d/0x180 [ 3.425680] do_syscall_64+0x5b/0x160 [ 3.426227] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 3.426773] RIP: 0033:0x7f967e93f0ee [ 3.427270] Code: 48 8b 0d 9d 1d 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6a 1d 0c 00 f7 d8 64 89 01 48 [ 3.428304] RSP: 002b:00007ffcd13c0598 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [ 3.428852] RAX: ffffffffffffffda RBX: 0000558e050b8390 RCX: 00007f967e93f0ee [ 3.429365] RDX: 00007f967eab584d RSI: 00000000002cc916 RDI: 0000558e05a57640 [ 3.429843] RBP: 00007f967eab584d R08: 0000558e0509ffe0 R09: 0000000000000006 [ 3.430307] R10: 0000000000000007 R11: 0000000000000246 R12: 0000558e05a57640 [ 3.430808] R13: 0000558e0509e240 R14: 0000000000020000 R15: 0000000000000000 [ 3.431279] Modules linked in: radeon(+) i2c_algo_bit qxl drm_kms_helper ttm drm crc32c_intel serio_raw virtio_net virtio_console net_failover virtio_blk failover qemu_fw_cfg ata_generic pata_acpi [ 3.432315] CR2: 0000000000000058 [ 3.432852] ---[ end trace 3319a54614f703b3 ]--- [ 3.433579] RIP: 0010:pcie_capability_read_dword+0x20/0xc0 [ 3.434373] Code: 9c bf ff 0f 1f 80 00 00 00 00 66 66 66 66 90 41 56 41 89 f6 41 55 41 54 55 53 c7 02 00 00 00 00 41 83 e6 03 0f 85 8c 00 00 00 <44> 0f b6 6f 58 45 84 ed 74 37 49 89 d4 89 f3 48 89 fd e8 09 fd ff [ 3.435750] RSP: 0018:ffffa1aa00963880 EFLAGS: 00010246 [ 3.436299] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 3.436874] RDX: ffffa1aa009638b0 RSI: 000000000000002c RDI: 0000000000000000 [ 3.437437] RBP: ffff90f8b2475bb8 R08: ffff90f8b385ddc0 R09: 0000000000040000 [ 3.438008] R10: 0000000000140000 R11: 0000000000000002 R12: ffff90f8b2474000 [ 3.438622] R13: ffff90f8b24e0000 R14: 0000000000000000 R15: 0000000000000000 [ 3.439201] FS: 00007f967dc83940(0000) GS:ffff90f8bbb00000(0000) knlGS:0000000000000000 [ 3.439802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.440426] CR2: 0000000000000058 CR3: 0000000134b88000 CR4: 00000000000406e0