Thanks for the great plugin. Definitely the best backup plugin out there.
I've never had a problem before now but as the title says the backup just hangs if wp-includes or wp-admin are not excluded. After five minutes I get the signal 15 error but when I run the backup without the two folders it takes just three seconds (I'm on a Litespeed server with PHP 5.4). I've tried with both PHP 5.2 and 5.3 but with no luck. I have an execution time of 100 seconds (which I'm free to increase) and my server logs/statistics shows no sign of CPU-, memory usage or anything even coming close to my hosting provider's limits.
I hope you can help.