This is somewhat related to the following question, except that this is more than two years later (and many Chrome versions later):
Since we've all done a great job getting rid of low quality posts I started doing the close vote reviews. This is when I started experiencing tab crashes and from what I can tell, it happens sometimes when I click on a question link on the review page itself, like the one below:
Not sure if it helps, but although it crashes all the Stack Overflow tabs that are open, the Meta tabs stay unharmed; apparently this is due to how Chrome groups tabs of the same site together in a single process.
I have no extension installed. Chrome 21.0.1180.82 (Mac OS X 10.7.4)
I reported this before, but after disabling the keyboard shortcut extension it didn't happen anymore so I removed the question and can't find it anymore :(