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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Screen hangs when running a 3D app. GTX 660"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99068#c10">Comment # 10</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Screen hangs when running a 3D app. GTX 660"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99068">bug 99068</a>
from <span class="vcard"><a class="email" href="mailto:skeggsb@gmail.com" title="Ben Skeggs <skeggsb@gmail.com>"> <span class="fn">Ben Skeggs</span></a>
</span></b>
<pre>(In reply to Nicolás Luciano Bértolo from <a href="show_bug.cgi?id=99068#c7">comment #7</a>)
<span class="quote">> What happens is that the file is actually there, but it is 0 bytes long.
>
> This is the script that I am using to extract the files:
>
> #! /bin/bash
>
> rmmod nvidia_drm
> rmmod nvidia_modeset
> rmmod nvidia
>
> echo 64000 > /sys/kernel/debug/tracing/buffer_size_kb
> echo mmiotrace > /sys/kernel/debug/tracing/current_tracer
> cat /sys/kernel/debug/tracing/trace_pipe > mmiotrace.log &
>
> modprobe nvidia
>
> xinit -e sh -c "glxgears & sleep 10"
>
> sleep 5
> echo nop > /sys/kernel/debug/tracing/current_tracer
> wait
>
> This line fails:
> echo nop > /sys/kernel/debug/tracing/current_tracer
> It outputs: Resource or device busy.</span >
That's normal, you need to kill the 'cat' process first.
Can you share your resulting trace please, I'll try and see what's different vs
my (working) board.</pre>
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