Maybe more noticeable in Lion and Mountain Lion, than in Snow Leopard and earlier versions of the operating system: - in safe mode, an unexpectedly large amount of *wired* memory. # Question Why might more memory be wired in safe mode? ## Links [Mac OS X: What is Safe Boot, Safe Mode?][1] http://apple.stackexchange.com/q/31801/8546 [XNU questions in Stack Overflow][2] [1]: http://support.apple.com/kb/HT1564 [2]: http://stackoverflow.com/questions/tagged/xnu