http://lwn.net/Articles/567946/ This is a special feed containing comments posted to the individual LWN article titled "On OpenGL debugging". hourly 2 http://lwn.net/Articles/568346/rss 2013-09-26T02:58:04+00:00 dlang <div class="FormattedComment"> <font class="QuotedText">&gt; But the implementation must be careful not to leak system information that would constitute a security risk, he said.</font><br> <p> I question this. When you are working to debug something like this, you are almost certainly going to be doing so on a machine that's not being used for anything else, if only to avoid the other things affecting the timing of the program you are trying to tune.<br> <p> you do need to make sure that this capability isn't available to regular users on regular machines (where it could be used as an attack, not for debugging), but this could be as simple as requiring a module load, or some switch being set by root to allow you access to the data (or only allowing root access to it)<br> <p> trying to make the data available, but then scrubbing the data to make sure it's not a 'security risk' runs a really big chance of making the data useless in the process.<br> </div>