git bisect start
# bad: [99c5a856dcee7658ec7e250aa477a9afaab8cfc6] Linux 4.1.16
git bisect bad 99c5a856dcee7658ec7e250aa477a9afaab8cfc6
# good: [60917545df1ffc7f918550512dc4a14758f74784] Linux 3.18.25
git bisect good 60917545df1ffc7f918550512dc4a14758f74784
# good: [b2776bf7149bddd1f4161f14f79520f17fc1d71d] Linux 3.18
git bisect good b2776bf7149bddd1f4161f14f79520f17fc1d71d
# good: [9682ec9692e5ac11c6caebd079324e727b19e7ce] Merge tag 'driver-core-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect good 9682ec9692e5ac11c6caebd079324e727b19e7ce
# bad: [80ed156a3d12819a8c839f40f5b6996c4aa117a5] s390/pci: add locking for fmb access
git bisect bad 80ed156a3d12819a8c839f40f5b6996c4aa117a5                                                                                        
# bad: [ca3f0874723fad81d0c701b63ae3a17a408d5f25] KVM: use slowpath for cross page cached accesses                                             
git bisect bad ca3f0874723fad81d0c701b63ae3a17a408d5f25                                                                                        
# good: [18656782a820f075cb5c168a2e381a8938b1550a] Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc  
git bisect good 18656782a820f075cb5c168a2e381a8938b1550a                                                                                       
# bad: [1acd2de5facd7fbea499aea64a3a3d0ec7bb9b51] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input         
git bisect bad 1acd2de5facd7fbea499aea64a3a3d0ec7bb9b51                                                                                        
# good: [53861af9a17022898619a2ae4ead0dfc601b7c13] Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
git bisect good 53861af9a17022898619a2ae4ead0dfc601b7c13
# bad: [e2defd02717ebc54ae2f4862271a3093665b426a] Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad e2defd02717ebc54ae2f4862271a3093665b426a
# good: [4533f6e27a366ecc3da4876074ebfe0cc0ea4f0f] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
git bisect good 4533f6e27a366ecc3da4876074ebfe0cc0ea4f0f
# good: [3266789f9d08b27275bae5ab1dcd27d1bbf15e79] Btrfs: don't set and clear delalloc for O_DIRECT writes
git bisect good 3266789f9d08b27275bae5ab1dcd27d1bbf15e79
# good: [7bad2227f639723230dbc40fe32e16101321b5b7] Merge tag 'for-linus-3.20-1' of git://git.code.sf.net/p/openipmi/linux-ipmi
git bisect good 7bad2227f639723230dbc40fe32e16101321b5b7
# bad: [3f4d9925e9174b8786bfbb6e9aa132aa6745078f] Merge branches 'core-urgent-for-linus' and 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 3f4d9925e9174b8786bfbb6e9aa132aa6745078f
# bad: [5516fd7b92a7c16b9111a88aaa1b13dd937d8ac5] debug: prevent entering debug mode on panic/exception.
git bisect bad 5516fd7b92a7c16b9111a88aaa1b13dd937d8ac5
# bad: [5454388113938d9592d6a6d5424469014da4ee86] kdb: Remove stack dump when entering kgdb due to NMI
git bisect bad 5454388113938d9592d6a6d5424469014da4ee86
# bad: [df0036d117e6c9df36324e517728e33543065f9a] kdb: Fix off by one error in kdb_cpu()
git bisect bad df0036d117e6c9df36324e517728e33543065f9a
# bad: [146755923262037fc4c54abc28c04b1103f3cc51] kdb: fix incorrect counts in KDB summary command output
git bisect bad 146755923262037fc4c54abc28c04b1103f3cc51
# first bad commit: [146755923262037fc4c54abc28c04b1103f3cc51] kdb: fix incorrect counts in KDB summary command output