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<div class="moz-cite-prefix">Hi Yusuf,<br>
<br>
Am 02.12.19 um 12:41 schrieb Yusuf Altıparmak:<br>
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<div>My embedded board is freezing when I put E9171 on PCIe.
What is the meaning of Unrecoverable Machine Check error about
GPU? <br>
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<br>
Well see the explanation on Wikipedia for example:
<a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Machine-check_exception">https://en.wikipedia.org/wiki/Machine-check_exception</a><br>
<br>
In general it means you have messed up something in your hardware
configuration.<br>
<br>
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<div>Could PCIe settings in .dts file cause this problem?</div>
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<br>
Possible, but rather unlikely. My best guess is that it is some
problem with the power supply.<br>
<br>
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<div> If it is, is there any sample PCIe configuration for
E9171?</div>
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The E9171 is just a PCIe device, so the dtsi is actually rather
uninteresting. What we really need is a full dmesg and maybe lspci
output would help as well.<br>
<br>
Regards,<br>
Christian.<br>
<br>
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<div> I attached my dts file.<br>
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<div><br>
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<div>System is working fine when GPU is not plugged in.</div>
<div><b><br>
</b></div>
<div><b>This is the last console log before freeze:</b></div>
<div>[drm] amdgpu kernel modesetting enabled.
</div>
[drm] initializing kernel modesetting (POLARIS12 0x1002:0x6987
0x1787:0x2389 0x80). <br>
[drm] register mmio base: 0x20200000
<br>
fsl-fman-port ffe488000.port fm1-gb0: renamed from eth0
<br>
[drm] register mmio size: 262144
<br>
[drm] add ip block number 0 <vi_common>
<br>
[drm] add ip block number 1 <gmc_v8_0>
<br>
[drm] add ip block number 2 <tonga_ih>
<br>
[drm] add ip block number 3 <powerplay>
<br>
[drm] add ip block number 4 <dm>
<br>
[drm] add ip block number 5 <gfx_v8_0>
<br>
[drm] add ip block number 6 <sdma_v3_0>
<br>
[drm] add ip block number 7 <uvd_v6_0>
<br>
[drm] add ip block number 8 <vce_v3_0>
<br>
[drm] UVD is enabled in VM mode
<br>
[drm] UVD ENC is enabled in VM mode
<br>
[drm] VCE enabled in VM mode
<br>
ATOM BIOS: 113-ER16BFC-001
<br>
[drm] GPU posting now...
<br>
Disabling lock debugging due to kernel taint
<br>
Machine check in kernel mode.
<br>
Caused by (from MCSR=a000): Load Error Report
<br>
Guarded Load Error Report
<br>
Kernel panic - not syncing: Unrecoverable Machine check
<br>
CPU: 1 PID: 2023 Comm: udevd Tainted: G M
4.19.26+gc0c2141 #1 <br>
Call Trace: <br>
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