[Fri Sep 28 00:06:28 2018] radeon 0000:01:00.0: ring 0 stalled for more than 
10248msec
[Fri Sep 28 00:06:28 2018] radeon 0000:01:00.0: GPU lockup (current fence id 
0x0000000000404e50 last fence id 0x0000000000404edc on ring 0)
[Fri Sep 28 00:06:28 2018] radeon 0000:01:00.0: ring 3 stalled for more than 
10204msec
[Fri Sep 28 00:06:28 2018] radeon 0000:01:00.0: GPU lockup (current fence id 
0x0000000000b9d1c3 last fence id 0x0000000000b9d21e on ring 3)
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: Saved 8932 dwords of commands 
on ring 0.
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: GPU softreset: 0x0000004C
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   GRBM_STATUS               = 
0xA0003028
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 
0x00000006
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 
0x00000006
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   SRBM_STATUS               = 
0x20000AC0
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   SRBM_STATUS2              = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 
0x00002000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 
0x00400002
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_008680_CP_STAT          = 
0x8C028647
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 
0x44C83146
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x0000DDFF
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00100100
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   GRBM_STATUS               = 
0x00003028
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 
0x00000006
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 
0x00000006
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   SRBM_STATUS               = 
0x200000C0
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   SRBM_STATUS2              = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_008680_CP_STAT          = 
0x00000000
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: GPU reset succeeded, trying to 
resume
[Fri Sep 28 00:06:29 2018] [drm] probing gen 2 caps for device 8086:1901 = 
261ad03/e
[Fri Sep 28 00:06:29 2018] [drm] PCIE gen 3 link speeds already enabled
[Fri Sep 28 00:06:29 2018] [drm] PCIE GART of 2048M enabled (table at 
0x00000000001D6000).
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: WB enabled
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: fence driver on ring 0 use gpu 
addr 0x0000000080000c00 and cpu addr 0x0000000070214f68
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: fence driver on ring 1 use gpu 
addr 0x0000000080000c04 and cpu addr 0x00000000b5b3fa4b
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: fence driver on ring 2 use gpu 
addr 0x0000000080000c08 and cpu addr 0x00000000552c5fb0
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: fence driver on ring 3 use gpu 
addr 0x0000000080000c0c and cpu addr 0x00000000ec35d8ef
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: fence driver on ring 4 use gpu 
addr 0x0000000080000c10 and cpu addr 0x000000002cca1ee6
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: fence driver on ring 5 use gpu 
addr 0x0000000000075a18 and cpu addr 0x00000000f6c849cc
[Fri Sep 28 00:06:29 2018] radeon 0000:01:00.0: failed VCE resume (-22).
[Fri Sep 28 00:06:30 2018] [drm] ring test on 0 succeeded in 2 usecs
[Fri Sep 28 00:06:30 2018] [drm] ring test on 1 succeeded in 1 usecs
[Fri Sep 28 00:06:30 2018] [drm] ring test on 2 succeeded in 1 usecs
[Fri Sep 28 00:06:30 2018] [drm] ring test on 3 succeeded in 9 usecs
[Fri Sep 28 00:06:30 2018] [drm] ring test on 4 succeeded in 3 usecs
[Fri Sep 28 00:06:30 2018] [drm] ring test on 5 succeeded in 2 usecs
[Fri Sep 28 00:06:30 2018] [drm] UVD initialized successfully.
[Fri Sep 28 00:06:30 2018] [drm:si_dpm_set_power_state [radeon]] *ERROR* 
si_set_sw_state failed
[Fri Sep 28 00:06:31 2018] [drm:r600_ib_test [radeon]] *ERROR* radeon: fence 
wait timed out.
[Fri Sep 28 00:06:31 2018] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: 
failed testing IB on GFX ring (-110).
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0: GPU softreset: 0x00000048
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   GRBM_STATUS               = 
0xA0003028
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 
0x00000006
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 
0x00000006
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   SRBM_STATUS               = 
0x20000AC0
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   SRBM_STATUS2              = 
0x00000000
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 
0x00000000
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 
0x00010000
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 
0x00400002
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   R_008680_CP_STAT          = 
0x84010243
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00000000
[Fri Sep 28 00:06:31 2018] radeon 0000:01:00.0:   
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x00000000
[Fri Sep 28 00:06:31 2018] WARNING: CPU: 1 PID: 1684 at 
/build/linux-SlLHxe/linux-4.15.0/drivers/gpu/drm/radeon/radeon_object.c:84 
radeon_ttm_bo_destroy+0xfb/0x100 [radeon]
[Fri Sep 28 00:06:31 2018] Modules linked in: nls_iso8859_1 intel_rapl 
x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek 
snd_hda_codec_generic kvm_intel snd_hda_codec_hdmi kvm snd_hda_intel irqbypass 
snd_hda_codec crct10dif_pclmul snd_hda_core snd_hwdep crc32_pclmul snd_pcm 
ghash_clmulni_intel pcbc snd_seq_midi snd_seq_midi_event snd_rawmidi 
aesni_intel snd_seq aes_x86_64 dcdbas crypto_simd glue_helper cryptd 
dell_smm_hwmon snd_seq_device intel_cstate snd_timer dell_smbios_wmi dell_wmi 
intel_rapl_perf snd dell_smbios wmi_bmof mei_me sparse_keymap 
dell_wmi_descriptor intel_wmi_thunderbolt soundcore shpchp mei 
intel_pch_thermal acpi_pad mac_hid sch_fq_codel parport_pc ppdev lp parport 
ip_tables x_tables autofs4 amdgpu chash hid_generic usbhid hid i915 radeon ttm 
i2c_algo_bit drm_kms_helper syscopyarea
[Fri Sep 28 00:06:31 2018]  e1000e sysfillrect sysimgblt fb_sys_fops ahci ptp 
drm pps_core libahci wmi video
[Fri Sep 28 00:06:31 2018] CPU: 1 PID: 1684 Comm: chrome Not tainted 
4.15.0-34-generic #37-Ubuntu
[Fri Sep 28 00:06:31 2018] Hardware name: Dell Inc. Precision Tower 
3620/09WH54, BIOS 2.7.3 01/31/2018
[Fri Sep 28 00:06:31 2018] RIP: 0010:radeon_ttm_bo_destroy+0xfb/0x100 [radeon]
[Fri Sep 28 00:06:31 2018] RSP: 0018:ffffae5aca2efb40 EFLAGS: 00010287
[Fri Sep 28 00:06:31 2018] RAX: ffff8830753e2480 RBX: ffff882fe94a2068 RCX: 
0000000000000000
[Fri Sep 28 00:06:31 2018] RDX: ffff882fe94a22e0 RSI: ffff883074978000 RDI: 
ffff883074979b80
[Fri Sep 28 00:06:31 2018] RBP: ffffae5aca2efb60 R08: ffff8830737e7780 R09: 
000000018040003e
[Fri Sep 28 00:06:31 2018] R10: ffffae5aca2efb48 R11: ffff882fe94a2200 R12: 
ffffffffffffffff
[Fri Sep 28 00:06:31 2018] R13: ffff882fe94a2000 R14: ffff883074978000 R15: 
ffff8830737e7780
[Fri Sep 28 00:06:31 2018] FS:  00007f9bb0842ac0(0000) 
GS:ffff8830a5c40000(0000) knlGS:0000000000000000
[Fri Sep 28 00:06:31 2018] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Sep 28 00:06:31 2018] CR2: 00005636e6e60a60 CR3: 000000083a522001 CR4: 
00000000003606e0
[Fri Sep 28 00:06:31 2018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
0000000000000000
[Fri Sep 28 00:06:31 2018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 
0000000000000400
[Fri Sep 28 00:06:31 2018] Call Trace:
[Fri Sep 28 00:06:31 2018]  ttm_bo_release_list+0x123/0x160 [ttm]
[Fri Sep 28 00:06:31 2018]  ttm_bo_release+0x1a3/0x280 [ttm]
[Fri Sep 28 00:06:31 2018]  ttm_bo_unref+0x28/0x30 [ttm]
[Fri Sep 28 00:06:31 2018]  radeon_bo_unref+0x39/0x70 [radeon]
[Fri Sep 28 00:06:31 2018]  radeon_gem_object_free+0x3a/0x50 [radeon]
[Fri Sep 28 00:06:31 2018]  drm_gem_object_free+0x22/0x50 [drm]
[Fri Sep 28 00:06:31 2018]  drm_gem_object_put_unlocked+0x39/0x70 [drm]
[Fri Sep 28 00:06:31 2018]  drm_gem_object_handle_put_unlocked+0x6a/0xb0 [drm]
[Fri Sep 28 00:06:31 2018]  drm_gem_object_release_handle+0x54/0x90 [drm]
[Fri Sep 28 00:06:31 2018]  drm_gem_handle_delete+0x5e/0x90 [drm]
[Fri Sep 28 00:06:31 2018]  ? drm_gem_handle_create+0x40/0x40 [drm]
[Fri Sep 28 00:06:31 2018]  drm_gem_close_ioctl+0x20/0x30 [drm]
[Fri Sep 28 00:06:31 2018]  drm_ioctl_kernel+0x5f/0xb0 [drm]
[Fri Sep 28 00:06:31 2018]  drm_ioctl+0x31b/0x3d0 [drm]
[Fri Sep 28 00:06:31 2018]  ? drm_gem_handle_create+0x40/0x40 [drm]
[Fri Sep 28 00:06:31 2018]  ? pipe_write+0x295/0x410
[Fri Sep 28 00:06:31 2018]  radeon_drm_ioctl+0x4f/0x90 [radeon]
[Fri Sep 28 00:06:31 2018]  do_vfs_ioctl+0xa8/0x630
[Fri Sep 28 00:06:31 2018]  ? vfs_write+0x166/0x1a0
[Fri Sep 28 00:06:31 2018]  SyS_ioctl+0x79/0x90
[Fri Sep 28 00:06:31 2018]  do_syscall_64+0x73/0x130
[Fri Sep 28 00:06:31 2018]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[Fri Sep 28 00:06:31 2018] RIP: 0033:0x7f9baa30a5d7
[Fri Sep 28 00:06:31 2018] RSP: 002b:00007ffeb36de638 EFLAGS: 00000202 
ORIG_RAX: 0000000000000010
[Fri Sep 28 00:06:31 2018] RAX: ffffffffffffffda RBX: 00001d6b2ea7de40 RCX: 
00007f9baa30a5d7
[Fri Sep 28 00:06:31 2018] RDX: 00007ffeb36de698 RSI: 0000000040086409 RDI: 
0000000000000010
[Fri Sep 28 00:06:31 2018] RBP: 00007ffeb36de670 R08: 0000000000000000 R09: 
0000000000000000
[Fri Sep 28 00:06:31 2018] R10: 0000000000000000 R11: 0000000000000202 R12: 
00001d6b2f10eb40
[Fri Sep 28 00:06:31 2018] R13: 0000000000020000 R14: 00001d6b2c64d5b0 R15: 
000000005cd50000
[Fri Sep 28 00:06:31 2018] Code: 00 74 0f 48 8b b3 c0 01 00 00 4c 89 e7 e8 de 
69 ef ff 4c 89 e7 e8 46 72 ee ff 4c 89 ef e8 5e 2e fc ce 5b 41 5c 41 5d 41 5e 
5d c3 <0f> 0b eb c3 90 0f 1f 44 00 00 48 81 7f 18 30 28 28 c0 55 48 89 
[Fri Sep 28 00:06:31 2018] ---[ end trace bcb45f5849485b46 ]---
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: GRBM_SOFT_RESET=0x0000DDFF
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: SRBM_SOFT_RESET=0x00000100
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   GRBM_STATUS               = 
0x00003028
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE0           = 
0x00000006
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   GRBM_STATUS_SE1           = 
0x00000006
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   SRBM_STATUS               = 
0x200000C0
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   SRBM_STATUS2              = 
0x00000000
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   R_008674_CP_STALLED_STAT1 = 
0x00000000
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   R_008678_CP_STALLED_STAT2 = 
0x00000000
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   R_00867C_CP_BUSY_STAT     = 
0x00000000
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   R_008680_CP_STAT          = 
0x00000000
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   R_00D034_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0:   R_00D834_DMA_STATUS_REG   = 
0x44C83D57
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: GPU reset succeeded, trying to 
resume
[Fri Sep 28 00:06:32 2018] [drm] probing gen 2 caps for device 8086:1901 = 
261ad03/e
[Fri Sep 28 00:06:32 2018] [drm] PCIE gen 3 link speeds already enabled
[Fri Sep 28 00:06:32 2018] [drm] PCIE GART of 2048M enabled (table at 
0x00000000001D6000).
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: WB enabled
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: fence driver on ring 0 use gpu 
addr 0x0000000080000c00 and cpu addr 0x0000000070214f68
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: fence driver on ring 1 use gpu 
addr 0x0000000080000c04 and cpu addr 0x00000000b5b3fa4b
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: fence driver on ring 2 use gpu 
addr 0x0000000080000c08 and cpu addr 0x00000000552c5fb0
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: fence driver on ring 3 use gpu 
addr 0x0000000080000c0c and cpu addr 0x00000000ec35d8ef
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: fence driver on ring 4 use gpu 
addr 0x0000000080000c10 and cpu addr 0x000000002cca1ee6
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: fence driver on ring 5 use gpu 
addr 0x0000000000075a18 and cpu addr 0x00000000f6c849cc
[Fri Sep 28 00:06:32 2018] radeon 0000:01:00.0: failed VCE resume (-22).
[Fri Sep 28 00:06:32 2018] [drm] ring test on 0 succeeded in 2 usecs
[Fri Sep 28 00:06:32 2018] [drm] ring test on 1 succeeded in 1 usecs
[Fri Sep 28 00:06:32 2018] [drm] ring test on 2 succeeded in 1 usecs
[Fri Sep 28 00:06:32 2018] [drm] ring test on 3 succeeded in 8 usecs
[Fri Sep 28 00:06:32 2018] [drm] ring test on 4 succeeded in 3 usecs
[Fri Sep 28 00:06:32 2018] [drm] ring test on 5 succeeded in 2 usecs
[Fri Sep 28 00:06:32 2018] [drm] UVD initialized successfully.
[Fri Sep 28 00:06:32 2018] [drm:si_dpm_set_power_state [radeon]] *ERROR* 
si_set_sw_state failed
[Fri Sep 28 00:06:33 2018] [drm] ib test on ring 0 succeeded in 0 usecs
[Fri Sep 28 00:06:33 2018] [drm] ib test on ring 1 succeeded in 0 usecs
[Fri Sep 28 00:06:33 2018] [drm] ib test on ring 2 succeeded in 0 usecs
[Fri Sep 28 00:06:33 2018] [drm] ib test on ring 3 succeeded in 0 usecs
[Fri Sep 28 00:06:33 2018] [drm] ib test on ring 4 succeeded in 0 usecs
[Fri Sep 28 00:06:34 2018] [drm:uvd_v1_0_ib_test [radeon]] *ERROR* radeon: 
fence wait timed out.
[Fri Sep 28 00:06:34 2018] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: 
failed testing IB on ring 5 (-110).
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: scheduling IB failed (-12).
[Fri Sep 28 00:06:34 2018] [drm:radeon_vce_get_create_msg [radeon]] *ERROR* 
radeon: failed to schedule ib (-12).                                            
                                                                                
                                  
[Fri Sep 28 00:06:34 2018] [drm:radeon_vce_ib_test [radeon]] *ERROR* radeon: 
failed to get create msg (-12).
[Fri Sep 28 00:06:34 2018] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: 
failed testing IB on ring 6 (-12).
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: scheduling IB failed (-12).
[Fri Sep 28 00:06:34 2018] [drm:radeon_vce_get_create_msg [radeon]] *ERROR* 
radeon: failed to schedule ib (-12).                                            
                                                                                
                                  
[Fri Sep 28 00:06:34 2018] [drm:radeon_vce_ib_test [radeon]] *ERROR* radeon: 
failed to get create msg (-12).
[Fri Sep 28 00:06:34 2018] [drm:radeon_ib_ring_tests [radeon]] *ERROR* radeon: 
failed testing IB on ring 7 (-12).
[Fri Sep 28 00:06:34 2018] BUG: unable to handle kernel NULL pointer 
dereference at 0000000000000008
[Fri Sep 28 00:06:34 2018] IP: radeon_vm_bo_set_addr+0x419/0x520 [radeon]
[Fri Sep 28 00:06:34 2018] PGD 0 P4D 0 
[Fri Sep 28 00:06:34 2018] Oops: 0002 [#1] SMP PTI
[Fri Sep 28 00:06:34 2018] Modules linked in: nls_iso8859_1 intel_rapl 
x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek 
snd_hda_codec_generic kvm_intel snd_hda_codec_hdmi kvm snd_hda_intel irqbypass 
snd_hda_codec crct10dif_pclmul snd_hda_core snd_hwdep crc32_pclmul snd_pcm 
ghash_clmulni_intel pcbc snd_seq_midi snd_seq_midi_event snd_rawmidi 
aesni_intel snd_seq aes_x86_64 dcdbas crypto_simd glue_helper cryptd 
dell_smm_hwmon snd_seq_device intel_cstate snd_timer dell_smbios_wmi dell_wmi 
intel_rapl_perf snd dell_smbios wmi_bmof mei_me sparse_keymap 
dell_wmi_descriptor intel_wmi_thunderbolt soundcore shpchp mei 
intel_pch_thermal acpi_pad mac_hid sch_fq_codel parport_pc ppdev lp parport 
ip_tables x_tables autofs4 amdgpu chash hid_generic usbhid hid i915 radeon ttm 
i2c_algo_bit drm_kms_helper syscopyarea
[Fri Sep 28 00:06:34 2018]  e1000e sysfillrect sysimgblt fb_sys_fops ahci ptp 
drm pps_core libahci wmi video
[Fri Sep 28 00:06:34 2018] CPU: 4 PID: 26420 Comm: chrome Tainted: G        W   
     4.15.0-34-generic #37-Ubuntu
[Fri Sep 28 00:06:34 2018] Hardware name: Dell Inc. Precision Tower 
3620/09WH54, BIOS 2.7.3 01/31/2018
[Fri Sep 28 00:06:34 2018] RIP: 0010:radeon_vm_bo_set_addr+0x419/0x520 [radeon]
[Fri Sep 28 00:06:34 2018] RSP: 0018:ffffae5acdfcbbd8 EFLAGS: 00010246
[Fri Sep 28 00:06:34 2018] RAX: 0000000000000000 RBX: 0000000000000800 RCX: 
0000000000000000
[Fri Sep 28 00:06:34 2018] RDX: ffff882f2e402e58 RSI: 0000000000000800 RDI: 
ffff8830799ca830
[Fri Sep 28 00:06:34 2018] RBP: ffffae5acdfcbc30 R08: 000000000000080f R09: 
ffff88307a181af8
[Fri Sep 28 00:06:34 2018] R10: 0000000000000040 R11: 0000000000000000 R12: 
000000000000080f
[Fri Sep 28 00:06:34 2018] R13: ffff8830799ca830 R14: ffff882f2e402e00 R15: 
ffff8830799ca800
[Fri Sep 28 00:06:34 2018] FS:  00007f5846459ac0(0000) 
GS:ffff8830a5d00000(0000) knlGS:0000000000000000
[Fri Sep 28 00:06:34 2018] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Sep 28 00:06:34 2018] CR2: 0000000000000008 CR3: 00000006ee4f0005 CR4: 
00000000003606e0
[Fri Sep 28 00:06:34 2018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
0000000000000000
[Fri Sep 28 00:06:34 2018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 
0000000000000400
[Fri Sep 28 00:06:34 2018] Call Trace:
[Fri Sep 28 00:06:34 2018]  ? wake_up_q+0x44/0x80
[Fri Sep 28 00:06:34 2018]  radeon_gem_va_ioctl+0x36c/0x4e0 [radeon]
[Fri Sep 28 00:06:34 2018]  ? up_read+0x1f/0x30
[Fri Sep 28 00:06:34 2018]  ? radeon_gem_get_tiling_ioctl+0x130/0x130 [radeon]
[Fri Sep 28 00:06:34 2018]  drm_ioctl_kernel+0x5f/0xb0 [drm]
[Fri Sep 28 00:06:34 2018]  ? radeon_gem_get_tiling_ioctl+0x130/0x130 [radeon]
[Fri Sep 28 00:06:34 2018]  ? drm_ioctl_kernel+0x5f/0xb0 [drm]
[Fri Sep 28 00:06:34 2018]  drm_ioctl+0x31b/0x3d0 [drm]
[Fri Sep 28 00:06:34 2018]  ? radeon_gem_get_tiling_ioctl+0x130/0x130 [radeon]
[Fri Sep 28 00:06:34 2018]  radeon_drm_ioctl+0x4f/0x90 [radeon]
[Fri Sep 28 00:06:34 2018]  do_vfs_ioctl+0xa8/0x630
[Fri Sep 28 00:06:34 2018]  ? handle_mm_fault+0xb1/0x1f0
[Fri Sep 28 00:06:34 2018]  ? __do_page_fault+0x270/0x4d0
[Fri Sep 28 00:06:34 2018]  ? SyS_futex+0x13b/0x180
[Fri Sep 28 00:06:34 2018]  SyS_ioctl+0x79/0x90
[Fri Sep 28 00:06:34 2018]  do_syscall_64+0x73/0x130
[Fri Sep 28 00:06:34 2018]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[Fri Sep 28 00:06:34 2018] RIP: 0033:0x7f583ff215d7
[Fri Sep 28 00:06:34 2018] RSP: 002b:00007ffcbd768c38 EFLAGS: 00000202 
ORIG_RAX: 0000000000000010
[Fri Sep 28 00:06:34 2018] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 
00007f583ff215d7
[Fri Sep 28 00:06:34 2018] RDX: 00007ffcbd768cd0 RSI: 00000000c018646b RDI: 
0000000000000010
[Fri Sep 28 00:06:34 2018] RBP: 00007ffcbd768c70 R08: 0000000000000000 R09: 
00001253cb27e100
[Fri Sep 28 00:06:34 2018] R10: 00001253cb27e608 R11: 0000000000000202 R12: 
0000000000001000
[Fri Sep 28 00:06:34 2018] R13: 0000000000010000 R14: 00001253cb27e100 R15: 
00001253cb1d26c0
[Fri Sep 28 00:06:34 2018] Code: 89 ff e8 fb e1 65 cf e9 cf fe ff ff 4d 8d 6f 
30 4c 89 ef e8 0a 1a 66 cf 49 89 5e 40 4d 89 66 48 49 8d 56 58 49 8b 4f 58 4c 
89 ef <48> 89 51 08 49 89 4e 58 49 8d 4f 58 49 89 4e 60 49 89 57 58 c6 
[Fri Sep 28 00:06:34 2018] RIP: radeon_vm_bo_set_addr+0x419/0x520 [radeon] RSP: 
ffffae5acdfcbbd8
[Fri Sep 28 00:06:34 2018] CR2: 0000000000000008
[Fri Sep 28 00:06:34 2018] ---[ end trace bcb45f5849485b47 ]---
[Fri Sep 28 00:06:34 2018] BUG: unable to handle kernel paging request at 
0000000800000020
[Fri Sep 28 00:06:34 2018] IP: radeon_vm_bo_invalidate+0x68/0x90 [radeon]
[Fri Sep 28 00:06:34 2018] PGD 0 P4D 0 
[Fri Sep 28 00:06:34 2018] Oops: 0002 [#2] SMP PTI
[Fri Sep 28 00:06:34 2018] Modules linked in: nls_iso8859_1 intel_rapl 
x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek 
snd_hda_codec_generic kvm_intel snd_hda_codec_hdmi kvm snd_hda_intel irqbypass 
snd_hda_codec crct10dif_pclmul snd_hda_core snd_hwdep crc32_pclmul snd_pcm 
ghash_clmulni_intel pcbc snd_seq_midi snd_seq_midi_event snd_rawmidi 
aesni_intel snd_seq aes_x86_64 dcdbas crypto_simd glue_helper cryptd 
dell_smm_hwmon snd_seq_device intel_cstate snd_timer dell_smbios_wmi dell_wmi 
intel_rapl_perf snd dell_smbios wmi_bmof mei_me sparse_keymap 
dell_wmi_descriptor intel_wmi_thunderbolt soundcore shpchp mei 
intel_pch_thermal acpi_pad mac_hid sch_fq_codel parport_pc ppdev lp parport 
ip_tables x_tables autofs4 amdgpu chash hid_generic usbhid hid i915 radeon ttm 
i2c_algo_bit drm_kms_helper syscopyarea
[Fri Sep 28 00:06:34 2018]  e1000e sysfillrect sysimgblt fb_sys_fops ahci ptp 
drm pps_core libahci wmi video
[Fri Sep 28 00:06:34 2018] CPU: 6 PID: 22037 Comm: kworker/6:4 Tainted: G      
D W        4.15.0-34-generic #37-Ubuntu
[Fri Sep 28 00:06:34 2018] Hardware name: Dell Inc. Precision Tower 
3620/09WH54, BIOS 2.7.3 01/31/2018
[Fri Sep 28 00:06:34 2018] Workqueue: events ttm_bo_delayed_workqueue [ttm]
[Fri Sep 28 00:06:34 2018] RIP: 0010:radeon_vm_bo_invalidate+0x68/0x90 [radeon]
[Fri Sep 28 00:06:34 2018] RSP: 0018:ffffae5ac3903d78 EFLAGS: 00010202
[Fri Sep 28 00:06:34 2018] RAX: ffff882ff8acbf58 RBX: ffff882ff8acbf00 RCX: 
0000000800000018
[Fri Sep 28 00:06:34 2018] RDX: ffff8830799cb200 RSI: ffff882fe7c0d800 RDI: 
ffff8830799cb230
[Fri Sep 28 00:06:34 2018] RBP: ffffae5ac3903d88 R08: 0000000000000000 R09: 
ffffae5ac3903cc8
[Fri Sep 28 00:06:34 2018] R10: 0000000000000000 R11: 0000000000004dbe R12: 
ffff882fe7c0dae0
[Fri Sep 28 00:06:34 2018] R13: ffff882fe7c0d800 R14: ffff882fe7c0d868 R15: 
ffff883081108b00
[Fri Sep 28 00:06:34 2018] FS:  0000000000000000(0000) 
GS:ffff8830a5d80000(0000) knlGS:0000000000000000
[Fri Sep 28 00:06:34 2018] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Sep 28 00:06:34 2018] CR2: 0000000800000020 CR3: 000000001e00a003 CR4: 
00000000003606e0
[Fri Sep 28 00:06:34 2018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
0000000000000000
[Fri Sep 28 00:06:34 2018] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 
0000000000000400
[Fri Sep 28 00:06:34 2018] Call Trace:
[Fri Sep 28 00:06:34 2018]  radeon_bo_move_notify+0x42/0x80 [radeon]
[Fri Sep 28 00:06:34 2018]  ttm_bo_cleanup_memtype_use+0x27/0x80 [ttm]
[Fri Sep 28 00:06:34 2018]  ttm_bo_cleanup_refs_and_unlock+0x18c/0x1a0 [ttm]
[Fri Sep 28 00:06:34 2018]  ? __switch_to_asm+0x34/0x70
[Fri Sep 28 00:06:34 2018]  ttm_bo_delayed_delete+0xae/0x1c0 [ttm]
[Fri Sep 28 00:06:34 2018]  ttm_bo_delayed_workqueue+0x1b/0x40 [ttm]
[Fri Sep 28 00:06:34 2018]  process_one_work+0x1de/0x410
[Fri Sep 28 00:06:34 2018]  worker_thread+0x32/0x410
[Fri Sep 28 00:06:34 2018]  kthread+0x121/0x140
[Fri Sep 28 00:06:34 2018]  ? process_one_work+0x410/0x410
[Fri Sep 28 00:06:34 2018]  ? kthread_create_worker_on_cpu+0x70/0x70
[Fri Sep 28 00:06:34 2018]  ? do_syscall_64+0x73/0x130
[Fri Sep 28 00:06:34 2018]  ? SyS_exit_group+0x14/0x20
[Fri Sep 28 00:06:34 2018]  ret_from_fork+0x35/0x40
[Fri Sep 28 00:06:34 2018] Code: 8d 78 30 e8 ab 0c 66 cf 48 8b 53 58 48 8d 43 
58 48 39 d0 75 cf 48 83 7b 40 00 75 07 48 83 7b 48 00 74 c1 48 8b 53 68 48 8b 
4a 38 <48> 89 41 08 48 89 4b 58 48 8d 4a 38 48 89 4b 60 48 89 42 38 eb 
[Fri Sep 28 00:06:34 2018] RIP: radeon_vm_bo_invalidate+0x68/0x90 [radeon] RSP: 
ffffae5ac3903d78
[Fri Sep 28 00:06:34 2018] CR2: 0000000800000020
[Fri Sep 28 00:06:34 2018] ---[ end trace bcb45f5849485b48 ]---
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 00000000b5b68bbb va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 00000000b5b68bbb va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000002e13a348 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000002e13a348 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000002e13a348 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000002e13a348 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 0000000085cf7377 va 
0x000003e5ec conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000002e13a348 va 
0x000003e5ec conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000002e13a348 va 
0x000003e5ec conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000007c79a55a va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000006aa93e6f va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000006aa93e6f va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 0000000085cf7377 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000007c79a55a va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000006ac98573 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000006ac98573 va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000006aa93e6f va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 000000007c79a55a va 
0x000003d778 conflict with (bo 0000000028278034 0x000003e700 0x00000406df)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 00000000ef914af5 va 
0x0000022900 conflict with (bo 00000000eac43771 0x0000024900 0x00000267ef)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 00000000ef914af5 va 
0x0000022900 conflict with (bo 00000000eac43771 0x0000024900 0x00000267ef)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 0000000067a64bf5 va 
0x0000022900 conflict with (bo 00000000eac43771 0x0000024900 0x00000267ef)
[Fri Sep 28 00:06:34 2018] radeon 0000:01:00.0: bo 0000000067a64bf5 va 
0x0000022900 conflict with (bo 00000000eac43771 0x0000024900 0x00000267ef)
[Fri Sep 28 11:33:25 2018] radeon_dp_aux_transfer_native: 158 callbacks 
suppressed

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Title:
  [radeon] machine crash after GPU reset

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