amdgpu display corruption and hang on AMD A10-9620P

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On Tue, May 9, 2017 at 7:03 PM, Deucher, Alexander
<Alexander.Deucher at amd.com> wrote:
>> -----Original Message-----
>> From: Daniel Drake [mailto:drake at endlessm.com]
>> Sent: Tuesday, May 09, 2017 12:55 PM
>> To: dri-devel; amd-gfx at lists.freedesktop.org; Deucher, Alexander
>> Cc: Chris Chiu; Linux Upstreaming Team
>> Subject: amdgpu display corruption and hang on AMD A10-9620P
>>
>> Hi,
>>
>> We are working with new laptops that have the AMD Bristol Ridge
>> chipset with this SoC:
>>
>> AMD A10-9620P RADEON R5, 10 COMPUTE CORES 4C+6G
>>
>> I think this is the Bristol Ridge chipset.
>>
>> During boot, the display becomes unusable at the point where the
>> amdgpu driver loads. You can see at least two horizontal lines of
>> garbage at this point. We have reproduced on 4.8, 4.10 and linus
>> master (early 4.12).
>>
>> Photo: http://pasteboard.co/qrC9mh4p.jpg
>>
>> Getting logs is tricky because the system appears to freeze at that point.
>>
>> Is this a known issue? Anything we can do to help diagnosis?
>
> I'm not aware of any specific issues.  Please file a bug and attach your logs (https://bugs.freedesktop.org) along with information about the system.

Opened https://bugs.freedesktop.org/show_bug.cgi?id=101387 to trace
this bug. I also have attached there the full log we get when
modprobing amdgpu.
Reporting here only the trace for the sake of documentation (full log
attached to the bug opened on freedesktop)

[   80.766937] ---[ end Kernel panic - not syncing: stack-protector:
Kernel stack is corrupted in: ffffffffc0c88942
[   80.766937]
[   80.766408] Kernel panic - not syncing: stack-protector: Kernel
stack is corrupted in: ffffffffc0c88942
[   80.766408]
[   80.766428] CPU: 1 PID: 1594 Comm: modprobe Not tainted 4.11.3+ #2
[   80.766431] Hardware name: Acer Aspire A515-41G/Wartortle_BS, BIOS
V0.09 04/19/2017
[   80.766434] Call Trace:
[   80.766445]  dump_stack+0x63/0x90
[   80.766451]  panic+0xe8/0x236
[   80.766526]  ? amdgpu_atombios_crtc_powergate_init+0x52/0x60 [amdgpu]
[   80.766537]  __stack_chk_fail+0x1b/0x20
[   80.766571]  amdgpu_atombios_crtc_powergate_init+0x52/0x60 [amdgpu]
[   80.766610]  dce_v11_0_hw_init+0x3e/0x2d0 [amdgpu]
[   80.766643]  amdgpu_device_init+0xe23/0x13c0 [amdgpu]
[   80.766647]  ? kmalloc_order+0x18/0x40
[   80.766650]  ? kmalloc_order_trace+0x24/0xa0
[   80.766683]  amdgpu_driver_load_kms+0x5d/0x240 [amdgpu]
[   80.766708]  drm_dev_register+0x148/0x1e0 [drm]
[   80.766721]  drm_get_pci_dev+0xa0/0x160 [drm]
[   80.766754]  amdgpu_pci_probe+0xb9/0xf0 [amdgpu]
[   80.766759]  local_pci_probe+0x45/0xa0
[   80.766762]  pci_device_probe+0xf4/0x150
[   80.766768]  driver_probe_device+0x2c5/0x470
[   80.766772]  __driver_attach+0xdf/0xf0
[   80.766776]  ? driver_probe_device+0x470/0x470
[   80.766780]  bus_for_each_dev+0x6c/0xc0
[   80.766784]  driver_attach+0x1e/0x20
[   80.766787]  bus_add_driver+0x45/0x270
[   80.766790]  ? 0xffffffffc09a8000
[   80.766794]  driver_register+0x60/0xe0
[   80.766796]  ? 0xffffffffc09a8000
[   80.766799]  __pci_register_driver+0x4c/0x50
[   80.766811]  drm_pci_init+0xed/0x100 [drm]
[   80.766816]  ? vga_switcheroo_register_handler+0x6c/0x90
[   80.766819]  ? 0xffffffffc09a8000
[   80.766850]  amdgpu_init+0x9b/0xac [amdgpu]
[   80.766855]  do_one_initcall+0x53/0x1c0
[   80.766860]  ? __vunmap+0x81/0xd0
[   80.766865]  ? kmem_cache_alloc_trace+0xdb/0x1b0
[   80.766868]  ? kfree+0x161/0x170
[   80.766876]  do_init_module+0x60/0x202
[   80.766881]  load_module+0x2612/0x29f0
[   80.766885]  SYSC_finit_module+0xa6/0xf0
[   80.766888]  ? SYSC_finit_module+0xa6/0xf0
[   80.766892]  SyS_finit_module+0xe/0x10
[   80.766896]  entry_SYSCALL_64_fastpath+0x1e/0xad
[   80.766899] RIP: 0033:0x7fa525e60709
[   80.766902] RSP: 002b:00007fff2f5bbbf8 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[   80.766905] RAX: ffffffffffffffda RBX: 00007fa526129760 RCX: 00007fa525e60709
[   80.766908] RDX: 0000000000000000 RSI: 000055f51f1c9439 RDI: 000000000000000b
[   80.766910] RBP: 0000000000000070 R08: 0000000000000000 R09: 000055f51fcd83f0
[   80.766913] R10: 000000000000000b R11: 0000000000000246 R12: 000055f51fcd9ff0
[   80.766915] R13: 0000000000000007 R14: 00007fa5261297b8 R15: 0000000000002710
[   80.766931] Kernel Offset: 0x22800000 from 0xffffffff81000000
(relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[   80.766937] ---[ end Kernel panic - not syncing: stack-protector:
Kernel stack is corrupted in: ffffffffc0c88942

-- 
Carlo Caione  |  +39.340.80.30.096  |  Endless


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