Bug: IDE 1.5.5 + OSX Maverick 10.9.2 crashes the OS

This one is intermittent, but easy to repro.

Repro steps:
1- Load any program (even "blink" can cause this)
2-Modify program
3-Upload the program
4-If it works, goto step 2

Result: After a few tries (about 10), OSX itself will crash before the upload stage is completed, and you'll have to reboot the mac.

Note: I've got an Arduino Due, however, this happened to me even when I inadvertently forgot to plug the board in.

Needless to say, this is quite a showstopper, as crashing a Unix-like system isn't exactly recommended...