<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> <p><br> </p> <br> <div class="moz-cite-prefix">On 2018年07月12日 05:27, Luís Mendes wrote:<br> </div> <blockquote type="cite" cite="mid:CAEzXK1q5OdOaYzLRw9YWmAeOUQxGjb2R8jTEjQX1SPNhTGsS_w@mail.gmail.com"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <div dir="ltr"> <div>Hi Jim,</div> <div><br> </div> <div>I followed your suggestion and was able to bisect the kernel patches.</div> <div>The offending patch is: drm/amdgpu: defer test IBs on the rings at boot (V3)<br> </div> <div>commit: <table summary="commit info" class="gmail-commit-info"> <tbody> <tr> <th><br> </th> <td colspan="2" class="gmail-sha1"><a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.18-rc4&id=2c773de2ecb8c327f2448bd1eecad224e9227087" moz-do-not-send="true">2c773de2ecb8c327f2448bd1eecad224e9227087</a></td> </tr> </tbody> </table> </div> <div><br> </div> <div>After reverting this patch the IB test succeeded with kernel v4.18-rc4 on both systems and the amdgpu driver was correctly loaded both on SAPPHIRE RX550 4GB and on SAPPHIRE RX460 2GB.</div> <div><br> </div> </div> </blockquote> <br> Alex, Christian, What do you think about the patch?<br> <br> <blockquote type="cite" cite="mid:CAEzXK1q5OdOaYzLRw9YWmAeOUQxGjb2R8jTEjQX1SPNhTGsS_w@mail.gmail.com"> <div dir="ltr"> <div>The GPU hang remains, however.<br> </div> <div> I will try to configure a remote IPMI connection to see what is happening with the kernel boot or setup a serial console for the Kernel.</div> <div><br> </div> </div> </blockquote> <br> You can set up remote connection by ssh, and also you can add amdgpu to blacklist first, and manually modprobe amdgpu.<br> What's about xinit? What is MESA driver version on your platform?<br> <br> <blockquote type="cite" cite="mid:CAEzXK1q5OdOaYzLRw9YWmAeOUQxGjb2R8jTEjQX1SPNhTGsS_w@mail.gmail.com"> <div dir="ltr"> <div>Thanks & Regards,</div> <div>Luís<br> </div> </div> <div class="gmail_extra"><br> <div class="gmail_quote">On Wed, Jul 11, 2018 at 10:56 AM, jimqu <span dir="ltr"><<a href="mailto:jimqu@amd.com" target="_blank" moz-do-not-send="true">jimqu@amd.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div text="#000000" bgcolor="#FFFFFF"> <p>HI Luis,</p> <p><br> </p> <p>Let us trace the issue one by one.</p> <p><br> </p> <p>IB test fail:</p> <p>This should be regression issue on 4.18, you can bisect the kernel patches.</p> <p>GPU hang:</p> <p>Fix IB test fail first.</p> <p><br> </p> <p>Thanks</p> <span class="HOEnZb"><font color="#888888"> <p>JimQu<br> </p> </font></span> <div> <div class="h5"> <p><br> </p> <br> <div class="m_-5542977703135971300moz-cite-prefix">On 2018年07月11日 17:34, Luís Mendes wrote:<br> </div> <blockquote type="cite"> <div dir="ltr"> <div>Hi Jim,</div> <div><br> </div> <div>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.<br> </div> <div><br> </div> <div><b>1. May you also test earlier kernel? v4.17 or v4.16.</b><br> </div> <div>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.</div> <div>dmesg log attached for kernel 4.17.5, file TYAN_S7025_kernelv4.17.5_<wbr>amdgpu_IB_ring_test_OK.txt.<br> </div> <div><br> </div> <div><b>2. May you test the issue only with amdgpu?</b></div> <div> <div>- I've tested on a TYAN S7002 system with a single SAPPHIRE RX 460 2GB, on-board VGA enabled and used as primary display.</div> <div>Kernel v4.18-rc4 fails the IB ring test, system is able to enter X through the on-board VGA. <br> </div> <div>dmesg log attached for kernel 4.18-rc4, file TYAN_S7002_kernel_v4.18-rc4_<wbr>IB_ring_test_fail.txt.</div> <div><br> </div> <div>- Same TYAN S7002 system, but now with on-board VGA disabled and using RX 460 as display connected card.<br> </div> <div> <div>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.<br> </div> <br> <div>Regards,</div> <div>Luís Mendes</div> <div>Aparapi contributor and MSc Researcher<br> </div> <div><br> </div> <div><br> </div> <br> </div> <br> </div> </div> <div class="gmail_extra"><br> <div class="gmail_quote">On Wed, Jul 11, 2018 at 3:49 AM, Qu, Jim <span dir="ltr"><<a href="mailto:Jim.Qu@amd.com" target="_blank" moz-do-not-send="true">Jim.Qu@amd.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Luis,<br> <br> 1. May you also test earlier kernel? v4.17 or v4.16.<br> 2. May you test the issue only with amdgpu?<br> <br> Thanks<br> JimQu<br> <br> ______________________________<wbr>__________<br> 发件人: amd-gfx <<a href="mailto:amd-gfx-bounces@lists.freedesktop.org" target="_blank" moz-do-not-send="true">amd-gfx-bounces@lists.freedes<wbr>ktop.org</a>> 代表 Luís Mendes <<a href="mailto:luis.p.mendes@gmail.com" target="_blank" moz-do-not-send="true">luis.p.mendes@gmail.com</a>><br> 发送时间: 2018年7月11日 6:04:00<br> 收件人: Michel Dänzer; Koenig, Christian; amd-gfx list<br> 主题: Re: Regression with kernel 4.18 - AMD RX 550 fails IB ring test on power-up<br> <span class="m_-5542977703135971300im m_-5542977703135971300HOEnZb"><br> Hi,<br> <br> Issue remains in kernel 4.18-rc4 using SAPPHIRE RX 550 4GB.<br> <br> Logs follow attached.<br> <br> Regards,<br> Luis<br> <br> </span> <div class="m_-5542977703135971300HOEnZb"> <div class="m_-5542977703135971300h5">On Tue, Jun 26, 2018 at 10:08 AM, Luís Mendes <<a href="mailto:luis.p.mendes@gmail.com" target="_blank" moz-do-not-send="true">luis.p.mendes@gmail.com</a><mailt<wbr>o:<a href="mailto:luis.p.mendes@gmail.com" target="_blank" moz-do-not-send="true">luis.p.mendes@gmail.com</a>>> wrote:<br> Hi,<br> <br> 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.<br> <br> [ 5.033217] [drm:gfx_v8_0_ring_test_ib [amdgpu]] *ERROR* amdgpu: ib test failed (scratch(0xC040)=0xFFFFFFFF)<br> [ 5.033264] [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu: failed testing IB on ring 6 (-22).<br> <br> Please see the attached log.<br> <br> Regards,<br> Luís<br> <br> </div> </div> </blockquote> </div> <br> </div> </blockquote> <br> </div> </div> </div> </blockquote> </div> <br> </div> </blockquote> <br> </body> </html>