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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102322#c90">Comment # 90</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - System crashes after "[drm] IP block:gmc_v8_0 is hung!" / [drm] IP block:sdma_v3_0 is hung!"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102322">bug 102322</a>
from <span class="vcard"><a class="email" href="mailto:freedesktop@jeroenimo.nl" title="jeroenimo <freedesktop@jeroenimo.nl>"> <span class="fn">jeroenimo</span></a>
</span></b>
<pre>I managed to run glmark2 without crashing the system with
By running the card manual at lowest frequency
from root shell:
echo manual > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo 0 > /sys/class/drm/card0/device/pp_dpm_sclk
root@jeroenimo-amd:/home/jeroen# cat /sys/class/drm/card0/device/pp_dpm_sclk
0: 214Mhz *
1: 387Mhz
2: 843Mhz
3: 995Mhz
4: 1062Mhz
5: 1108Mhz
6: 1149Mhz
7: 1176Mhz
root@jeroenimo-amd:/home/jeroen#
If I go to higher e.g. 2: 843Mhz I manage to crash it.. although it takes a
while before it crashes.
when I force the card to anything above 4 I get an immediate crash without even
starting glmark2
I hope this helps!</pre>
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