Re: 答复: Regression with kernel 4.18 - AMD RX 550 fails IB ring test on power-up

[jimqu@xxxxxxx (jimqu)]

HI Luis,


Let us trace the issue one by one.


IB test fail:

This should be regression issue on 4.18, you can bisect the kernel patches.

GPU hang:

Fix IB test fail first.


Thanks

JimQu



On 2018å¹´07æ??11æ?¥ 17:34, Luís Mendes wrote:
> Hi Jim,
>
> Thanks for your interest in this issue. Actually this is a multiple 
> issue... not only the IB ring test is failing... as I am having quite 
> some trouble getting the cards SAPPHIRE RX 550 4GB on a Tyan S7025 and 
> SAPPHIRE RX 460 2GB on a TYAN S7002 to work, both systems using same 
> Ubuntu 18.04 with vanilla kernel.
>
> *1. May you also test earlier kernel? v4.17 or v4.16.*
> I've tested kernels v4.17.5 and v4.16.6 with same system and both are 
> able to pass the IB ring test and system boots into X using NVIDIA as 
> the display connected card.
> dmesg log attached for kernel 4.17.5, file 
> TYAN_S7025_kernelv4.17.5_amdgpu_IB_ring_test_OK.txt.
>
> *2. May you test the issue only with amdgpu?*
> - I've tested on a TYAN S7002 system with a single SAPPHIRE RX 460 
> 2GB, on-board VGA enabled and used as primary display.
> Kernel v4.18-rc4 fails the IB ring test, system is able to enter X 
> through the on-board VGA.
> dmesg log attached for kernel 4.18-rc4, file 
> TYAN_S7002_kernel_v4.18-rc4_IB_ring_test_fail.txt.
>
> - Same TYAN S7002 system, but now with on-board VGA disabled and using 
> RX 460 as display connected card.
> Kernels v4.17.5 and v4.16.6 are able to pass the IB ring test, but GPU 
> hangs before entering X. Don't have logs for these yet.
>
> Regards,
> Luís Mendes
> Aparapi contributor and MSc Researcher
>
>
>
>
>
> On Wed, Jul 11, 2018 at 3:49 AM, Qu, Jim <Jim.Qu at amd.com 
> <mailto:Jim.Qu at amd.com>> wrote:
>
>     Hi Luis,
>
>     1. May you also test earlier kernel? v4.17 or v4.16.
>     2. May you test the issue only with amdgpu?
>
>     Thanks
>     JimQu
>
>     ________________________________________
>     å??件人: amd-gfx <amd-gfx-bounces at lists.freedesktop.org
>     <mailto:amd-gfx-bounces at lists.freedesktop.org>> 代表 Luís Mendes
>     <luis.p.mendes at gmail.com <mailto:luis.p.mendes at gmail.com>>
>     å??é??æ?¶é?´: 2018å¹´7æ??11æ?¥ 6:04:00
>     �件人: Michel Dänzer; Koenig, Christian; amd-gfx list
>     主�: Re: Regression with kernel 4.18 - AMD RX 550 fails IB ring
>     test on power-up
>
>     Hi,
>
>     Issue remains in kernel 4.18-rc4 using SAPPHIRE RX 550 4GB.
>
>     Logs follow attached.
>
>     Regards,
>     Luis
>
>     On Tue, Jun 26, 2018 at 10:08 AM, Luís Mendes
>     <luis.p.mendes at gmail.com
>     <mailto:luis.p.mendes at gmail.com><mailto:luis.p.mendes at gmail.com
>     <mailto:luis.p.mendes at gmail.com>>> wrote:
>     Hi,
>
>     I've tried kernel 4.18-rc2 on a system with a NVIDIA GTX 1050 Ti
>     and an AMD RX 550 4GB and the RX 550 card is failing the IB ring test.
>
>     [Â  Â  5.033217] [drm:gfx_v8_0_ring_test_ib [amdgpu]] *ERROR*
>     amdgpu: ib test failed (scratch(0xC040)=0xFFFFFFFF)
>     [Â  Â  5.033264] [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu:
>     failed testing IB on ring 6 (-22).
>
>     Please see the attached log.
>
>     Regards,
>     Luís
>
>

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