This is a great song, the bass line repeats itself with breakdowns throughout the song.
I have added some timings but listen to the song to hear it better as the octaves are 
16th notes.

     |      |      |      |       |      |      |      |
G||-----9------9---------------|-----------------------------|
D||----------------------------|-----10-------------10-------|
A||--7------7------7.---7----7-|-----------------------------|
E||----------------------------|--8------8.-----8----------8-|

     |      |      |      |       |      |      |      |
G||----------------------------|---------------------7-----7-|
D||-----7------7--------7----7-|-----7-----------------------|
A||----------------------------|----------------5------------|
E||--5------5------5.----------|--5------5-------------------|

The . after a note symbolises a dotted note, i.e. 1.5 times the length. In this instance 
are always 8th notes.

I'm pretty sure this is right but any corrections please let me know.