git bisect start
# bad: [a048a07d7f4535baa4cbad6bc024f175317ab938] powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit
git bisect bad a048a07d7f4535baa4cbad6bc024f175317ab938
# good: [bebc6082da0a9f5d47a1ea2edc099bf671058bd4] Linux 4.14
git bisect good bebc6082da0a9f5d47a1ea2edc099bf671058bd4
# bad: [db5933225f2fe50d3b91ebbba73ed9c3b703b99a] Merge tag 'tty-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
git bisect bad db5933225f2fe50d3b91ebbba73ed9c3b703b99a
# good: [bec04432cb9036dedf89140c102b5ac03e4b3626] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
git bisect good bec04432cb9036dedf89140c102b5ac03e4b3626
# good: [532b5aa0b41ae908842166be4d17fffa53590bf0] Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
git bisect good 532b5aa0b41ae908842166be4d17fffa53590bf0
# bad: [efd52b5d363e3e3b6224ad39949219c0df117c91] Merge tag 'nfs-for-4.16-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
git bisect bad efd52b5d363e3e3b6224ad39949219c0df117c91
# bad: [0bae60fceeab6958ecd56ba5dbb41fb199babec3] Merge tag 'mmc-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
git bisect bad 0bae60fceeab6958ecd56ba5dbb41fb199babec3
# good: [1c9609e3a8cf5997bd35205cfda1ff2218ee793b] ALSA: hda - Reduce the suspend time consumption for ALC256
git bisect good 1c9609e3a8cf5997bd35205cfda1ff2218ee793b
# bad: [1c1f395b2873f59830979cf82324fbf00edfb80c] Merge tag 'sound-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
git bisect bad 1c1f395b2873f59830979cf82324fbf00edfb80c
# bad: [6ec8765f55cc3e2d6543dfe64ebfd9b2ff327fa4] Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect bad 6ec8765f55cc3e2d6543dfe64ebfd9b2ff327fa4
# good: [591ff9ea51cec683e4cb378a3469228ba1d69010] ipv6: don't let tb6_root node share routes with other node
git bisect good 591ff9ea51cec683e4cb378a3469228ba1d69010
# good: [dda3e15231b35840fe6f0973f803cc70ddb86281] Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
git bisect good dda3e15231b35840fe6f0973f803cc70ddb86281
# bad: [9abc937836b46757950193485ff2d92944c1af96] Merge tag 'drm-fixes-for-v4.15-rc9' of git://people.freedesktop.org/~airlied/linux
git bisect bad 9abc937836b46757950193485ff2d92944c1af96
# bad: [04cef3eadcf0bf9783a985286cc5f48c5d33fd7a] Merge tag 'drm-intel-fixes-2018-01-18' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
git bisect bad 04cef3eadcf0bf9783a985286cc5f48c5d33fd7a
# good: [75f195f46f27a2524b249b95e6f241cd13c7e549] Merge tag 'drm-misc-fixes-2018-01-17' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
git bisect good 75f195f46f27a2524b249b95e6f241cd13c7e549
# good: [ee62249d85a3cc2e5507f6b8b64669ac0acbdb88] Merge branch 'linux-4.15' of git://github.com/skeggsb/linux into drm-fixes
git bisect good ee62249d85a3cc2e5507f6b8b64669ac0acbdb88
# bad: [23ac12732825901b3fc6ac720958d8bff9a0d6ec] drm/i915: Redo plane sanitation during readout
git bisect bad 23ac12732825901b3fc6ac720958d8bff9a0d6ec
# good: [d87ce76402950b8e4d5117276d44465658e886a4] drm/i915: Add .get_hw_state() method for planes
git bisect good d87ce76402950b8e4d5117276d44465658e886a4
# first bad commit: [23ac12732825901b3fc6ac720958d8bff9a0d6ec] drm/i915: Redo plane sanitation during readout