3 ms·A feature introduced specifically to safeguard iTunes DRM I'd bet.by Synaesthesia 15y agoA feature introduced specifically to safeguard iTunes DRM I'd bet.rbanffy 15y agoIt's absent from the Solaris-based OSs, where dtrace came from, IIRC.yuhong 15y agoThe funny thing is that it can be easily patched out by modifying the XNU source code, which made me wonder about open source politics inside Apple.