<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <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#c7">Comment # 7</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 <a class="email" href="mailto:nicolasbertolo@gmail.com" title="Nicolás Luciano Bértolo <nicolasbertolo@gmail.com>"> Nicolás Luciano Bértolo</a> <pre>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.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>