git bisect start
# bad: [5dd2e9869de2d28fc7e5c274ff9c12af4361ba86] Linux 3.9.5
git bisect bad 5dd2e9869de2d28fc7e5c274ff9c12af4361ba86
# good: [dbf932a9b316d5b29b3e220e5a30e7a165ad2992] Linux 3.8.13
git bisect good dbf932a9b316d5b29b3e220e5a30e7a165ad2992
# good: [19f949f52599ba7c3f67a5897ac6be14bfcb1200] Linux 3.8
git bisect good 19f949f52599ba7c3f67a5897ac6be14bfcb1200
# bad: [9d3cae26acb471d5954cfdc25d1438b32060babe] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
git bisect bad 9d3cae26acb471d5954cfdc25d1438b32060babe
# bad: [6588208cb2be4ab05e9dc0d1f5879eacf3dbcd1c] rtc: rtc-at91rm9200: use dev_dbg()/dev_err() instead of printk()/pr_debug()
git bisect bad 6588208cb2be4ab05e9dc0d1f5879eacf3dbcd1c
# good: [ecd9883724b78cc72ed92c98bcb1a46c764fff21] ipv6: fix race condition regarding dst->expires and dst->from.
git bisect good ecd9883724b78cc72ed92c98bcb1a46c764fff21
# good: [5a1203914a637b642442a861cf462d16401548e1] Merge tag 'for-v3.9' of git://git.infradead.org/battery-2.6
git bisect good 5a1203914a637b642442a861cf462d16401548e1
# bad: [8793422fd9ac5037f5047f80473007301df3689f] Merge tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
git bisect bad 8793422fd9ac5037f5047f80473007301df3689f
# good: [4419fbd4b408c3a8634b3a8dd952055d0f0b601f] Merge branch 'pm-cpufreq'
git bisect good 4419fbd4b408c3a8634b3a8dd952055d0f0b601f
# good: [10b6339e93244156fac901560117e94bf9dca120] Merge tag 'clk-for-linus' of git://git.linaro.org/people/mturquette/linux
git bisect good 10b6339e93244156fac901560117e94bf9dca120
# good: [b3cdda2b4f541439ca4205793040aa2e1c852e3b] Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux
git bisect good b3cdda2b4f541439ca4205793040aa2e1c852e3b
# good: [2e7d0f60d8b976c951621c1bc82acf0654089c0b] Merge branches 'idle-remove-statedata', 'pm_idle' and 'idle-hsw-turbostat' into release
git bisect good 2e7d0f60d8b976c951621c1bc82acf0654089c0b
# good: [c098ea74b268969bde5aaf1689b61d236abf82f5] cpufreq: exynos: Fix hang in pm handler due to frequency mismatch
git bisect good c098ea74b268969bde5aaf1689b61d236abf82f5
# good: [fdbe0946d4c35d4cc784cfe0a5322708cfb7ade8] Merge branch 'pm-cpufreq'
git bisect good fdbe0946d4c35d4cc784cfe0a5322708cfb7ade8
# bad: [27be457000211a6903968dfce06d5f73f051a217] x86 idle: remove 32-bit-only "no-hlt" parameter, hlt_works_ok flag
git bisect bad 27be457000211a6903968dfce06d5f73f051a217
# bad: [69fb3676df3329a7142803bb3502fa59dc0db2e3] x86 idle: remove mwait_idle() and "idle=mwait" cmdline param
git bisect bad 69fb3676df3329a7142803bb3502fa59dc0db2e3
# good: [6a377ddc4e4ede2eeb9cd46ada23bbe417704fc9] xen idle: make xen-specific macro xen-specific
git bisect good 6a377ddc4e4ede2eeb9cd46ada23bbe417704fc9
# first bad commit: [69fb3676df3329a7142803bb3502fa59dc0db2e3] x86 idle: remove mwait_idle() and "idle=mwait" cmdline param