[Bug 204849] New: amdgpu (RX560X) traceboot in dmesg boot output, system instability

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https://bugzilla.kernel.org/show_bug.cgi?id=204849

            Bug ID: 204849
           Summary: amdgpu (RX560X) traceboot in dmesg boot output, system
                    instability
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.3-rc8
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx
          Reporter: justin@xxxxxxxxxxxxxx
        Regression: No

Trying to sort out a system stability problem with my new laptop (Acer Nitro 5,
model AN515-42-R3EE) with Ryzen 2700U and RX560X.

dmesg output shows traceback for amdgpu with kernel 5.3-rc8, all prior kernels
I've tested (various 4.x, and 5.3-rc7) also have various tracebacks shown in
amdgpu.

Here's the 5.3-rc8 kernel one, note there are several that show up at the same
time in the dmesg output, all amdgpu related:

***********************************************************************

[    5.662316] ------------[ cut here ]------------
[    5.662430] WARNING: CPU: 2 PID: 403 at
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1882
write_i2c_default_retimer_setting.cold+0x45
/0xab [amdgpu]
[    5.662431] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul
crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_co
re amd_iommu_v2 gpu_sched i2c_algo_bit aesni_intel drm_kms_helper aes_x86_64
xhci_pci crypto_simd syscopyarea sysfillrect xhci_hcd sysimgblt fb_sys
_fops ttm cryptd glue_helper drm usbcore serio_raw rtsx_pci video wmi
pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg dm_multipath dm
_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[    5.662449] CPU: 2 PID: 403 Comm: systemd-udevd Not tainted
5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased)
[    5.662450] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13
02/11/2019
[    5.662530] RIP: 0010:write_i2c_default_retimer_setting.cold+0x45/0xab
[amdgpu]
[    5.662532] Code: 76 2c b5 d8 0f 0b e9 ab 14 fd ff 48 c7 c7 c0 7d c7 c0 e8
63 2c b5 d8 0f 0b e9 ea 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 50 2c b5 d8 
<0f> 0b e9 83 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 3d 2c b5 d8 0f 0b e9
[    5.662533] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246
[    5.662534] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000000
[    5.662534] RDX: 0000000000000000 RSI: ffff9eb08ec99a18 RDI:
ffff9eb08ec99a18
[    5.662535] RBP: ffff9eb077d401b8 R08: ffff9eb08ec99a18 R09:
ffff9eb08f219c40
[    5.662535] R10: 0000000000000406 R11: 00000000000ea8ac R12:
0000000000000000
[    5.662536] R13: 0000000000000000 R14: ffff9eb077c00000 R15:
ffff9eb077ce3800
[    5.662537] FS:  00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000)
knlGS:0000000000000000
[    5.662537] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.662538] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4:
00000000003406e0
[    5.662538] Call Trace:
[    5.662619]  core_link_enable_stream+0x861/0x870 [amdgpu]
[    5.662696]  ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.662769]  dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.662844]  dc_commit_state_no_check+0x216/0x540 [amdgpu]
[    5.662917]  dc_commit_state+0x8f/0xb0 [amdgpu]
[    5.662993]  amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu]
[    5.663068]  ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu]
[    5.663140]  ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu]
[    5.663148]  ? commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.663153]  commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.663159]  drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper]
[    5.663172]  drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm]
[    5.663184]  drm_client_modeset_commit_force+0x50/0x150 [drm]
[    5.663189]  drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0
[drm_kms_helper]
[    5.663195]  drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper]
[    5.663198]  fbcon_init+0x2a9/0x5d0
[    5.663201]  visual_init+0xce/0x130
[    5.663203]  do_bind_con_driver+0x1b9/0x2a0
[    5.663205]  do_take_over_console+0x115/0x180
[    5.663206]  do_fbcon_takeover+0x58/0xb0
[    5.663208]  register_framebuffer+0x1e4/0x300
[    5.663214]  __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440
[drm_kms_helper]
[    5.663269]  amdgpu_fbdev_init+0xbc/0xf0 [amdgpu]
[    5.663347]  amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu]
[    5.663399]  amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu]
[    5.663409]  drm_dev_register+0x111/0x150 [drm]
[    5.663460]  amdgpu_pci_probe+0xbd/0x120 [amdgpu]
[    5.663464]  ? __pm_runtime_resume+0x58/0x80
[    5.663466]  local_pci_probe+0x42/0x80
[    5.663468]  pci_device_probe+0x107/0x1b0
[    5.663470]  really_probe+0xf0/0x380
[    5.663471]  driver_probe_device+0x59/0xd0
[    5.663473]  device_driver_attach+0x53/0x60
[    5.663474]  __driver_attach+0x8a/0x150
[    5.663475]  ? device_driver_attach+0x60/0x60
[    5.663476]  bus_for_each_dev+0x78/0xc0
[    5.663478]  bus_add_driver+0x14a/0x1e0
[    5.663479]  driver_register+0x6c/0xb0
[    5.663481]  ? 0xffffffffc070e000
[    5.663483]  do_one_initcall+0x46/0x1f4
[    5.663486]  ? _cond_resched+0x15/0x30
[    5.663488]  ? kmem_cache_alloc_trace+0x1c1/0x210
[    5.663490]  ? do_init_module+0x23/0x230
[    5.663491]  do_init_module+0x5c/0x230
[    5.663493]  load_module+0x14a8/0x1610
[    5.663495]  ? vmap_page_range_noflush+0x23c/0x350
[    5.663497]  ? __do_sys_init_module+0x16e/0x1a0
[    5.663498]  ? _cond_resched+0x15/0x30
[    5.663499]  __do_sys_init_module+0x16e/0x1a0
[    5.663501]  do_syscall_64+0x6e/0x1e0
[    5.663503]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    5.663504] RIP: 0033:0x7f7733b7823a
[    5.663506] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48
 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48
[    5.663507] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX:
00000000000000af
[    5.663508] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX:
00007f7733b7823a
[    5.663509] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI:
00007f772dfd3010
[    5.663509] RBP: 00007f77344ae8bd R08: 0000000000000000 R09:
0000000300000001
[    5.663510] R10: 00005643b488e410 R11: 0000000000000246 R12:
00007f772dfd3010
[    5.663510] R13: 00005643b4879970 R14: 00005643b4890890 R15:
0000000003938700
[    5.663511] ---[ end trace e1e9bc13f40b1150 ]---
[    5.663730] ------------[ cut here ]------------
[    5.663820] WARNING: CPU: 2 PID: 403 at
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1894
write_i2c_default_retimer_setting.cold+0x32/0xab [amdgpu]
[    5.663820] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul
crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core
amd_iommu_v2 gpu_sched i2c_a
lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea
sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore
serio_raw rtsx_pci vi
deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[    5.663832] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G        W        
5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased)
[    5.663833] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13
02/11/2019
[    5.663912] RIP: 0010:write_i2c_default_retimer_setting.cold+0x32/0xab
[amdgpu]
[    5.663913] Code: 89 2c b5 d8 0f 0b e9 6c 14 fd ff 48 c7 c7 c0 7d c7 c0 e8
76 2c b5 d8 0f 0b e9 ab 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 63 2c b5 d8 <0f> 0b e9
ea 13 fd ff 48 c7 c7
 c0 7d c7 c0 e8 50 2c b5 d8 0f 0b e9
[    5.663913] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246
[    5.663914] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000006
[    5.663915] RDX: 0000000000000000 RSI: 0000000000000002 RDI:
ffff9eb08ec99a10
[    5.663915] RBP: ffff9eb077d401b8 R08: 000000015195ac4f R09:
ffff9eb08f219c40
[    5.663916] R10: 0000000000000453 R11: 00000000000e92f4 R12:
0000000000000000
[    5.663916] R13: 0000000000000000 R14: ffff9eb077c00000 R15:
ffff9eb077ce3800
[    5.663917] FS:  00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000)
knlGS:0000000000000000
[    5.663917] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.663918] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4:
00000000003406e0
[    5.663918] Call Trace:
[    5.663993]  core_link_enable_stream+0x861/0x870 [amdgpu]
[    5.664067]  ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.664139]  dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.664212]  dc_commit_state_no_check+0x216/0x540 [amdgpu]
[    5.664284]  dc_commit_state+0x8f/0xb0 [amdgpu]
[    5.664357]  amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu]
[    5.664430]  ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu]
[    5.664500]  ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu]
[    5.664507]  ? commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.664512]  commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.664517]  drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper]
[    5.664528]  drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm]
[    5.664539]  drm_client_modeset_commit_force+0x50/0x150 [drm]
[    5.664545]  drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0
[drm_kms_helper]
[    5.664550]  drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper]
[    5.664551]  fbcon_init+0x2a9/0x5d0
[    5.664553]  visual_init+0xce/0x130
[    5.664554]  do_bind_con_driver+0x1b9/0x2a0
[    5.664556]  do_take_over_console+0x115/0x180
[    5.664557]  do_fbcon_takeover+0x58/0xb0
[    5.664559]  register_framebuffer+0x1e4/0x300
[    5.664564]  __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440
[drm_kms_helper]
[    5.664618]  amdgpu_fbdev_init+0xbc/0xf0 [amdgpu]
[    5.664697]  amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu]
[    5.664748]  amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu]
[    5.664758]  drm_dev_register+0x111/0x150 [drm]
[    5.664809]  amdgpu_pci_probe+0xbd/0x120 [amdgpu]
[    5.664810]  ? __pm_runtime_resume+0x58/0x80
[    5.664812]  local_pci_probe+0x42/0x80
[    5.664813]  pci_device_probe+0x107/0x1b0
[    5.664814]  really_probe+0xf0/0x380
[    5.664815]  driver_probe_device+0x59/0xd0
[    5.664816]  device_driver_attach+0x53/0x60
[    5.664817]  __driver_attach+0x8a/0x150
[    5.664818]  ? device_driver_attach+0x60/0x60
[    5.664820]  bus_for_each_dev+0x78/0xc0
[    5.664821]  bus_add_driver+0x14a/0x1e0
[    5.664822]  driver_register+0x6c/0xb0
[    5.664823]  ? 0xffffffffc070e000
[    5.664824]  do_one_initcall+0x46/0x1f4
[    5.664826]  ? _cond_resched+0x15/0x30
[    5.664827]  ? kmem_cache_alloc_trace+0x1c1/0x210
[    5.664828]  ? do_init_module+0x23/0x230
[    5.664829]  do_init_module+0x5c/0x230
[    5.664830]  load_module+0x14a8/0x1610
[    5.664832]  ? vmap_page_range_noflush+0x23c/0x350
[    5.664834]  ? __do_sys_init_module+0x16e/0x1a0
[    5.664835]  ? _cond_resched+0x15/0x30
[    5.664836]  __do_sys_init_module+0x16e/0x1a0
[    5.664838]  do_syscall_64+0x6e/0x1e0
[    5.664839]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    5.664840] RIP: 0033:0x7f7733b7823a
[    5.664841] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48
 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48
[    5.664842] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX:
00000000000000af
[    5.664843] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX:
00007f7733b7823a
[    5.664843] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI:
00007f772dfd3010
[    5.664844] RBP: 00007f77344ae8bd R08: 0000000000000000 R09:
0000000300000001
[    5.664844] R10: 00005643b488e410 R11: 0000000000000246 R12:
00007f772dfd3010
[    5.664844] R13: 00005643b4879970 R14: 00005643b4890890 R15:
0000000003938700
[    5.664846] ---[ end trace e1e9bc13f40b1151 ]---
[    5.665063] ------------[ cut here ]------------
[    5.665150] WARNING: CPU: 2 PID: 403 at
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1906
write_i2c_default_retimer_setting.cold+0xc/0xab [amdgpu]
[    5.665150] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul
crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core
amd_iommu_v2 gpu_sched i2c_a
lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea
sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore
serio_raw rtsx_pci vi
deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[    5.665159] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G        W        
5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased)
[    5.665159] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13
02/11/2019
[    5.665238] RIP: 0010:write_i2c_default_retimer_setting.cold+0xc/0xab
[amdgpu]
[    5.665239] Code: af 2c b5 d8 0f 0b e9 fd 10 fd ff 48 c7 c7 c0 7d c7 c0 e8
9c 2c b5 d8 0f 0b e9 d3 0f fd ff 48 c7 c7 c0 7d c7 c0 e8 89 2c b5 d8 <0f> 0b e9
6c 14 fd ff 48 c7 c7
 c0 7d c7 c0 e8 76 2c b5 d8 0f 0b e9
[    5.665240] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246
[    5.665241] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000006
[    5.665241] RDX: 0000000000000000 RSI: 0000000000000002 RDI:
ffff9eb08ec99a10
[    5.665241] RBP: ffff9eb077d401b8 R08: 0000000151aa03f6 R09:
ffff9eb08f219c40
[    5.665242] R10: 00000000000004a0 R11: 00000000000e7d2c R12:
0000000000000000
[    5.665242] R13: 0000000000000000 R14: ffff9eb077c00000 R15:
ffff9eb077ce3800
[    5.665243] FS:  00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000)
knlGS:0000000000000000
[    5.665244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.665244] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4:
00000000003406e0
[    5.665245] Call Trace:
[    5.665319]  core_link_enable_stream+0x861/0x870 [amdgpu]
[    5.665394]  ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.665466]  dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.665538]  dc_commit_state_no_check+0x216/0x540 [amdgpu]
[    5.665609]  dc_commit_state+0x8f/0xb0 [amdgpu]
[    5.665683]  amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu]
[    5.665755]  ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu]
[    5.665825]  ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu]
[    5.665831]  ? commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.665836]  commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.665842]  drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper]
[    5.665853]  drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm]
[    5.665863]  drm_client_modeset_commit_force+0x50/0x150 [drm]
[    5.665869]  drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0
[drm_kms_helper]
[    5.665874]  drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper]
[    5.665876]  fbcon_init+0x2a9/0x5d0
[    5.665877]  visual_init+0xce/0x130
[    5.665879]  do_bind_con_driver+0x1b9/0x2a0
[    5.665880]  do_take_over_console+0x115/0x180
[    5.665881]  do_fbcon_takeover+0x58/0xb0
[    5.665883]  register_framebuffer+0x1e4/0x300
[    5.665888]  __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440
[drm_kms_helper]
[    5.665943]  amdgpu_fbdev_init+0xbc/0xf0 [amdgpu]
[    5.666021]  amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu]
[    5.666073]  amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu]
[    5.666082]  drm_dev_register+0x111/0x150 [drm]
[    5.666133]  amdgpu_pci_probe+0xbd/0x120 [amdgpu]
[    5.666135]  ? __pm_runtime_resume+0x58/0x80
[    5.666136]  local_pci_probe+0x42/0x80
[    5.666137]  pci_device_probe+0x107/0x1b0
[    5.666138]  really_probe+0xf0/0x380
[    5.666139]  driver_probe_device+0x59/0xd0
[    5.666140]  device_driver_attach+0x53/0x60
[    5.666141]  __driver_attach+0x8a/0x150
[    5.666142]  ? device_driver_attach+0x60/0x60
[    5.666143]  bus_for_each_dev+0x78/0xc0
[    5.666145]  bus_add_driver+0x14a/0x1e0
[    5.666146]  driver_register+0x6c/0xb0
[    5.666147]  ? 0xffffffffc070e000
[    5.666148]  do_one_initcall+0x46/0x1f4
[    5.666149]  ? _cond_resched+0x15/0x30
[    5.666150]  ? kmem_cache_alloc_trace+0x1c1/0x210
[    5.666151]  ? do_init_module+0x23/0x230
[    5.666153]  do_init_module+0x5c/0x230
[    5.666154]  load_module+0x14a8/0x1610
[    5.666155]  ? vmap_page_range_noflush+0x23c/0x350
[    5.666157]  ? __do_sys_init_module+0x16e/0x1a0
[    5.666158]  ? _cond_resched+0x15/0x30
[    5.666159]  __do_sys_init_module+0x16e/0x1a0
[    5.666161]  do_syscall_64+0x6e/0x1e0
[    5.666162]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    5.666163] RIP: 0033:0x7f7733b7823a
[    5.666164] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48
 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48
[    5.666165] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX:
00000000000000af
[    5.666166] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX:
00007f7733b7823a
[    5.666166] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI:
00007f772dfd3010
[    5.666167] RBP: 00007f77344ae8bd R08: 0000000000000000 R09:
0000000300000001
[    5.666167] R10: 00005643b488e410 R11: 0000000000000246 R12:
00007f772dfd3010
[    5.666168] R13: 00005643b4879970 R14: 00005643b4890890 R15:
0000000003938700
[    5.666169] ---[ end trace e1e9bc13f40b1152 ]---
[    5.666395] ------------[ cut here ]------------
[    5.666481] WARNING: CPU: 2 PID: 403 at
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1918
write_i2c_default_retimer_setting.cold+0x1f/0xab [amdgpu]
[    5.666481] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul
crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core
amd_iommu_v2 gpu_sched i2c_a
lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea
sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore
serio_raw rtsx_pci vi
deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[    5.666491] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G        W        
5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased)
[    5.666491] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13
02/11/2019
[    5.666569] RIP: 0010:write_i2c_default_retimer_setting.cold+0x1f/0xab
[amdgpu]
[    5.666571] Code: 9c 2c b5 d8 0f 0b e9 d3 0f fd ff 48 c7 c7 c0 7d c7 c0 e8
89 2c b5 d8 0f 0b e9 6c 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 76 2c b5 d8 <0f> 0b e9
ab 14 fd ff 48 c7 c7
 c0 7d c7 c0 e8 63 2c b5 d8 0f 0b e9
[    5.666571] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246
[    5.666573] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000000
[    5.666573] RDX: 0000000000000000 RSI: ffff9eb08ec99a18 RDI:
ffff9eb08ec99a18
[    5.666574] RBP: ffff9eb077d401b8 R08: ffff9eb08ec99a18 R09:
ffff9eb08f219c40
[    5.666574] R10: 00000000000004ed R11: 00000000000e6764 R12:
0000000000000000
[    5.666574] R13: 0000000000000000 R14: ffff9eb077c00000 R15:
ffff9eb077ce3800
[    5.666575] FS:  00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000)
knlGS:0000000000000000
[    5.666576] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.666576] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4:
00000000003406e0
[    5.666577] Call Trace:
[    5.666651]  core_link_enable_stream+0x861/0x870 [amdgpu]
[    5.666724]  ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.666796]  dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.666868]  dc_commit_state_no_check+0x216/0x540 [amdgpu]
[    5.666940]  dc_commit_state+0x8f/0xb0 [amdgpu]
[    5.667013]  amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu]
[    5.667085]  ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu]
[    5.667155]  ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu]
[    5.667161]  ? commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.667166]  commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.667172]  drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper]
[    5.667182]  drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm]
[    5.667193]  drm_client_modeset_commit_force+0x50/0x150 [drm]
[    5.667199]  drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0
[drm_kms_helper]
[    5.667204]  drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper]
[    5.667206]  fbcon_init+0x2a9/0x5d0
[    5.667207]  visual_init+0xce/0x130
[    5.667209]  do_bind_con_driver+0x1b9/0x2a0
[    5.667210]  do_take_over_console+0x115/0x180
[    5.667211]  do_fbcon_takeover+0x58/0xb0
[    5.667213]  register_framebuffer+0x1e4/0x300
[    5.667218]  __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440
[drm_kms_helper]
[    5.667273]  amdgpu_fbdev_init+0xbc/0xf0 [amdgpu]
[    5.667351]  amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu]
[    5.667402]  amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu]
[    5.667411]  drm_dev_register+0x111/0x150 [drm]
[    5.667462]  amdgpu_pci_probe+0xbd/0x120 [amdgpu]
[    5.667464]  ? __pm_runtime_resume+0x58/0x80
[    5.667466]  local_pci_probe+0x42/0x80
[    5.667467]  pci_device_probe+0x107/0x1b0
[    5.667468]  really_probe+0xf0/0x380
[    5.667469]  driver_probe_device+0x59/0xd0
[    5.667470]  device_driver_attach+0x53/0x60
[    5.667471]  __driver_attach+0x8a/0x150
[    5.667472]  ? device_driver_attach+0x60/0x60
[    5.667473]  bus_for_each_dev+0x78/0xc0
[    5.667475]  bus_add_driver+0x14a/0x1e0
[    5.667476]  driver_register+0x6c/0xb0
[    5.667477]  ? 0xffffffffc070e000
[    5.667478]  do_one_initcall+0x46/0x1f4
[    5.667479]  ? _cond_resched+0x15/0x30
[    5.667481]  ? kmem_cache_alloc_trace+0x1c1/0x210
[    5.667482]  ? do_init_module+0x23/0x230
[    5.667483]  do_init_module+0x5c/0x230
[    5.667484]  load_module+0x14a8/0x1610
[    5.667486]  ? vmap_page_range_noflush+0x23c/0x350
[    5.667488]  ? __do_sys_init_module+0x16e/0x1a0
[    5.667489]  ? _cond_resched+0x15/0x30
[    5.667490]  __do_sys_init_module+0x16e/0x1a0
[    5.667492]  do_syscall_64+0x6e/0x1e0
[    5.667493]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    5.667494] RIP: 0033:0x7f7733b7823a
[    5.667495] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48
 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48
[    5.667496] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX:
00000000000000af
[    5.667497] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX:
00007f7733b7823a
[    5.667498] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI:
00007f772dfd3010
[    5.667498] RBP: 00007f77344ae8bd R08: 0000000000000000 R09:
0000000300000001
[    5.667499] R10: 00005643b488e410 R11: 0000000000000246 R12:
00007f772dfd3010
[    5.667499] R13: 00005643b4879970 R14: 00005643b4890890 R15:
0000000003938700
[    5.667500] ---[ end trace e1e9bc13f40b1153 ]---
[    5.667718] ------------[ cut here ]------------
[    5.667804] WARNING: CPU: 2 PID: 403 at
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1930
write_i2c_default_retimer_setting.cold+0x58/0xab [amdgpu]
[    5.667805] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul
crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core
amd_iommu_v2 gpu_sched i2c_a
lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea
sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore
serio_raw rtsx_pci vi
deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[    5.667814] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G        W        
5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased)
[    5.667814] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13
02/11/2019
[    5.667892] RIP: 0010:write_i2c_default_retimer_setting.cold+0x58/0xab
[amdgpu]
[    5.667894] Code: 63 2c b5 d8 0f 0b e9 ea 13 fd ff 48 c7 c7 c0 7d c7 c0 e8
50 2c b5 d8 0f 0b e9 83 13 fd ff 48 c7 c7 c0 7d c7 c0 e8 3d 2c b5 d8 <0f> 0b e9
cd 14 fd ff 48 c7 c7
 c0 7d c7 c0 e8 2a 2c b5 d8 0f 0b e9
[    5.667894] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246
[    5.667896] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000006
[    5.667896] RDX: 0000000000000000 RSI: 0000000000000002 RDI:
ffff9eb08ec99a10
[    5.667896] RBP: ffff9eb077d401b8 R08: 0000000151d285dd R09:
ffff9eb08f219c40
[    5.667897] R10: 000000000000053a R11: 00000000000e519c R12:
0000000000000000
[    5.667897] R13: 0000000000000000 R14: ffff9eb077c00000 R15:
ffff9eb077ce3800
[    5.667898] FS:  00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000)
knlGS:0000000000000000
[    5.667899] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.667899] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4:
00000000003406e0
[    5.667900] Call Trace:
[    5.667973]  core_link_enable_stream+0x861/0x870 [amdgpu]
[    5.668046]  ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.668118]  dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.668190]  dc_commit_state_no_check+0x216/0x540 [amdgpu]
[    5.668262]  dc_commit_state+0x8f/0xb0 [amdgpu]
[    5.668334]  amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu]
[    5.668407]  ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu]
[    5.668476]  ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu]
[    5.668483]  ? commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.668488]  commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.668493]  drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper]
[    5.668504]  drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm]
[    5.668515]  drm_client_modeset_commit_force+0x50/0x150 [drm]
[    5.668520]  drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0
[drm_kms_helper]
[    5.668526]  drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper]
[    5.668527]  fbcon_init+0x2a9/0x5d0
[    5.668529]  visual_init+0xce/0x130
[    5.668530]  do_bind_con_driver+0x1b9/0x2a0
[    5.668532]  do_take_over_console+0x115/0x180
[    5.668533]  do_fbcon_takeover+0x58/0xb0
[    5.668534]  register_framebuffer+0x1e4/0x300
[    5.668540]  __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440
[drm_kms_helper]
[    5.668594]  amdgpu_fbdev_init+0xbc/0xf0 [amdgpu]
[    5.668672]  amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu]
[    5.668724]  amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu]
[    5.668733]  drm_dev_register+0x111/0x150 [drm]
[    5.668784]  amdgpu_pci_probe+0xbd/0x120 [amdgpu]
[    5.668785]  ? __pm_runtime_resume+0x58/0x80
[    5.668787]  local_pci_probe+0x42/0x80
[    5.668788]  pci_device_probe+0x107/0x1b0
[    5.668789]  really_probe+0xf0/0x380
[    5.668790]  driver_probe_device+0x59/0xd0
[    5.668791]  device_driver_attach+0x53/0x60
[    5.668792]  __driver_attach+0x8a/0x150
[    5.668793]  ? device_driver_attach+0x60/0x60
[    5.668794]  bus_for_each_dev+0x78/0xc0
[    5.668796]  bus_add_driver+0x14a/0x1e0
[    5.668797]  driver_register+0x6c/0xb0
[    5.668798]  ? 0xffffffffc070e000
[    5.668799]  do_one_initcall+0x46/0x1f4
[    5.668800]  ? _cond_resched+0x15/0x30
[    5.668802]  ? kmem_cache_alloc_trace+0x1c1/0x210
[    5.668803]  ? do_init_module+0x23/0x230
[    5.668804]  do_init_module+0x5c/0x230
[    5.668805]  load_module+0x14a8/0x1610
[    5.668807]  ? vmap_page_range_noflush+0x23c/0x350
[    5.668809]  ? __do_sys_init_module+0x16e/0x1a0
[    5.668810]  ? _cond_resched+0x15/0x30
[    5.668811]  __do_sys_init_module+0x16e/0x1a0
[    5.668813]  do_syscall_64+0x6e/0x1e0
[    5.668814]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    5.668815] RIP: 0033:0x7f7733b7823a
[    5.668816] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48
 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48
[    5.668817] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX:
00000000000000af
[    5.668818] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX:
00007f7733b7823a
[    5.668818] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI:
00007f772dfd3010
[    5.668819] RBP: 00007f77344ae8bd R08: 0000000000000000 R09:
0000000300000001
[    5.668819] R10: 00005643b488e410 R11: 0000000000000246 R12:
00007f772dfd3010
[    5.668820] R13: 00005643b4879970 R14: 00005643b4890890 R15:
0000000003938700
[    5.668821] ---[ end trace e1e9bc13f40b1154 ]---
[    5.669039] ------------[ cut here ]------------
[    5.669125] WARNING: CPU: 2 PID: 403 at
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_link.c:1942
write_i2c_default_retimer_setting.cold+0x6b/0xab [amdgpu]
[    5.669125] Modules linked in: hid_generic usbhid amdgpu(+) crct10dif_pclmul
crc32_pclmul crc32c_intel rtsx_pci_sdmmc ghash_clmulni_intel mmc_core
amd_iommu_v2 gpu_sched i2c_a
lgo_bit aesni_intel drm_kms_helper aes_x86_64 xhci_pci crypto_simd syscopyarea
sysfillrect xhci_hcd sysimgblt fb_sys_fops ttm cryptd glue_helper drm usbcore
serio_raw rtsx_pci vi
deo wmi pinctrl_amd i2c_hid button dm_mirror dm_region_hash dm_log sg
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs
[    5.669134] CPU: 2 PID: 403 Comm: systemd-udevd Tainted: G        W        
5.3.0-rc8-2.gd6f0b71-default #1 openSUSE Tumbleweed (unreleased)
[    5.669135] Hardware name: Acer Nitro AN515-42/Freed_RRS, BIOS V1.13
02/11/2019
[    5.669213] RIP: 0010:write_i2c_default_retimer_setting.cold+0x6b/0xab
[amdgpu]
[    5.669214] Code: 50 2c b5 d8 0f 0b e9 83 13 fd ff 48 c7 c7 c0 7d c7 c0 e8
3d 2c b5 d8 0f 0b e9 cd 14 fd ff 48 c7 c7 c0 7d c7 c0 e8 2a 2c b5 d8 <0f> 0b e9
0b 15 fd ff 48 c7 c7
 c0 7d c7 c0 e8 17 2c b5 d8 0f 0b e9
[    5.669215] RSP: 0018:ffffaccd804b7248 EFLAGS: 00010246
[    5.669216] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000006
[    5.669217] RDX: 0000000000000000 RSI: 0000000000000002 RDI:
ffff9eb08ec99a10
[    5.669217] RBP: ffff9eb077d401b8 R08: 0000000151e6abb2 R09:
ffff9eb08f219c40
[    5.669218] R10: 0000000000000587 R11: 00000000000e3bd4 R12:
0000000000000000
[    5.669218] R13: 0000000000000000 R14: ffff9eb077c00000 R15:
ffff9eb077ce3800
[    5.669219] FS:  00007f7734d34d40(0000) GS:ffff9eb08ec80000(0000)
knlGS:0000000000000000
[    5.669219] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    5.669220] CR2: 00007f772e838a70 CR3: 000000023ebe2000 CR4:
00000000003406e0
[    5.669220] Call Trace:
[    5.669294]  core_link_enable_stream+0x861/0x870 [amdgpu]
[    5.669369]  ? dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.669440]  dce110_apply_ctx_to_hw+0x4b0/0x530 [amdgpu]
[    5.669513]  dc_commit_state_no_check+0x216/0x540 [amdgpu]
[    5.669584]  dc_commit_state+0x8f/0xb0 [amdgpu]
[    5.669657]  amdgpu_dm_atomic_commit_tail+0x3bf/0xfb0 [amdgpu]
[    5.669729]  ? fill_dc_plane_info_and_addr+0x340/0x340 [amdgpu]
[    5.669798]  ? dm_plane_helper_prepare_fb+0x20d/0x290 [amdgpu]
[    5.669805]  ? commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.669810]  commit_tail+0x3c/0x70 [drm_kms_helper]
[    5.669816]  drm_atomic_helper_commit+0x108/0x110 [drm_kms_helper]
[    5.669826]  drm_client_modeset_commit_atomic+0x1d0/0x1f0 [drm]
[    5.669837]  drm_client_modeset_commit_force+0x50/0x150 [drm]
[    5.669843]  drm_fb_helper_restore_fbdev_mode_unlocked+0x49/0xa0
[drm_kms_helper]
[    5.669848]  drm_fb_helper_set_par+0x2c/0x50 [drm_kms_helper]
[    5.669850]  fbcon_init+0x2a9/0x5d0
[    5.669852]  visual_init+0xce/0x130
[    5.669853]  do_bind_con_driver+0x1b9/0x2a0
[    5.669854]  do_take_over_console+0x115/0x180
[    5.669856]  do_fbcon_takeover+0x58/0xb0
[    5.669857]  register_framebuffer+0x1e4/0x300
[    5.669862]  __drm_fb_helper_initial_config_and_unlock+0x2fa/0x440
[drm_kms_helper]
[    5.669917]  amdgpu_fbdev_init+0xbc/0xf0 [amdgpu]
[    5.669995]  amdgpu_device_init.cold+0x5b5/0x8ec [amdgpu]
[    5.670047]  amdgpu_driver_load_kms+0x86/0x1f0 [amdgpu]
[    5.670056]  drm_dev_register+0x111/0x150 [drm]
[    5.670107]  amdgpu_pci_probe+0xbd/0x120 [amdgpu]
[    5.670109]  ? __pm_runtime_resume+0x58/0x80
[    5.670110]  local_pci_probe+0x42/0x80
[    5.670111]  pci_device_probe+0x107/0x1b0
[    5.670112]  really_probe+0xf0/0x380
[    5.670114]  driver_probe_device+0x59/0xd0
[    5.670115]  device_driver_attach+0x53/0x60
[    5.670115]  __driver_attach+0x8a/0x150
[    5.670116]  ? device_driver_attach+0x60/0x60
[    5.670118]  bus_for_each_dev+0x78/0xc0
[    5.670119]  bus_add_driver+0x14a/0x1e0
[    5.670120]  driver_register+0x6c/0xb0
[    5.670121]  ? 0xffffffffc070e000
[    5.670122]  do_one_initcall+0x46/0x1f4
[    5.670124]  ? _cond_resched+0x15/0x30
[    5.670125]  ? kmem_cache_alloc_trace+0x1c1/0x210
[    5.670126]  ? do_init_module+0x23/0x230
[    5.670127]  do_init_module+0x5c/0x230
[    5.670129]  load_module+0x14a8/0x1610
[    5.670130]  ? vmap_page_range_noflush+0x23c/0x350
[    5.670132]  ? __do_sys_init_module+0x16e/0x1a0
[    5.670133]  ? _cond_resched+0x15/0x30
[    5.670134]  __do_sys_init_module+0x16e/0x1a0
[    5.670136]  do_syscall_64+0x6e/0x1e0
[    5.670137]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[    5.670138] RIP: 0033:0x7f7733b7823a
[    5.670139] Code: 48 8b 0d 61 ac 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48
 8b 0d 2e ac 2b 00 f7 d8 64 89 01 48
[    5.670140] RSP: 002b:00007ffffa6bac38 EFLAGS: 00000246 ORIG_RAX:
00000000000000af
[    5.670141] RAX: ffffffffffffffda RBX: 00005643b487d140 RCX:
00007f7733b7823a
[    5.670142] RDX: 00007f77344ae8bd RSI: 0000000000865a77 RDI:
00007f772dfd3010
[    5.670142] RBP: 00007f77344ae8bd R08: 0000000000000000 R09:
0000000300000001
[    5.670143] R10: 00005643b488e410 R11: 0000000000000246 R12:
00007f772dfd3010
[    5.670143] R13: 00005643b4879970 R14: 00005643b4890890 R15:
0000000003938700
[    5.670144] ---[ end trace e1e9bc13f40b1155 ]---

***********************************************************************

I'm ok with applying and testing kernel patches if need be. ;)

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