Comment 26 for bug 1080308

I have found the commit between v3.8.13.6-raring and v3.9-raring

$ git bisect log
git bisect start
# good: [19f949f52599ba7c3f67a5897ac6be14bfcb1200] Linux 3.8
git bisect good 19f949f52599ba7c3f67a5897ac6be14bfcb1200
# bad: [c1be5a5b1b355d40e6cf79cc979eb66dafa24ad1] Linux 3.9
git bisect bad c1be5a5b1b355d40e6cf79cc979eb66dafa24ad1
# bad: [d778df51c09264076fe0208c099ef7d428f21790] mm: vmscan: save work scanning (almost) empty LRU lists
git bisect bad d778df51c09264076fe0208c099ef7d428f21790
# bad: [3278bb748d2437eb1464765f36429e5d6aa91c38] ocfs2: unlock super lock if lockres refresh failed
git bisect bad 3278bb748d2437eb1464765f36429e5d6aa91c38
# good: [c6b538079723efd21b5fd7e3091dc47dbd0436c4] Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
git bisect good c6b538079723efd21b5fd7e3091dc47dbd0436c4

My important problem is: First cpu is always 97% when computer idle. What is to do next?
Thanks.