Dave Grohl has spoken about the “dysfunction” that he felt existed within Nirvana, adding that it is something that doesn’t exist within Foo Fighters.Grohl has looked back on his time with both Nirvana and Foo Fighters in a new interview ahead of the release this week of Foos’ new album ‘Medicine At Midnight’.Speaking to The Big Issue, Grohl said that his musical relationship with his Nirvana bandmates Kurt Cobain and Krist Novoselic “was a match made in heaven”.“But personally it was a bit off,