git bisect start
# good: [6ee2c3f93d50b2a9aa7bee32bf16b924f2d98596] Arch Linux kernel v5.0.13-arch1
git bisect good 6ee2c3f93d50b2a9aa7bee32bf16b924f2d98596
# bad: [131e410f795e5d9bbbc075ddec0aa7af4ac75038] Arch Linux kernel v5.1-arch1
git bisect bad 131e410f795e5d9bbbc075ddec0aa7af4ac75038
# good: [1c163f4c7b3f621efff9b28a47abb36f7378d783] Linux 5.0
git bisect good 1c163f4c7b3f621efff9b28a47abb36f7378d783
# good: [b5dd0c658c31b469ccff1b637e5124851e7a4a1c] Merge branch 'akpm' (patches from Andrew)
git bisect good b5dd0c658c31b469ccff1b637e5124851e7a4a1c
# bad: [4f0237062ca70c8e34e16e518aee4b84c30d1832] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
git bisect bad 4f0237062ca70c8e34e16e518aee4b84c30d1832
# good: [80201fe175cbf7f3e372f53eba0a881a702ad926] Merge tag 'for-5.1/block-20190302' of git://git.kernel.dk/linux-block
git bisect good 80201fe175cbf7f3e372f53eba0a881a702ad926
# good: [a50243b1ddcdd766d0d17fbfeeb1a22e62fdc461] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
git bisect good a50243b1ddcdd766d0d17fbfeeb1a22e62fdc461
# good: [b7a7d1c1ec688104fdc922568c26395a756f616d] Merge tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping
git bisect good b7a7d1c1ec688104fdc922568c26395a756f616d
# good: [c3665a6be5de16cf6670a00003642114c44d8a70] Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
git bisect good c3665a6be5de16cf6670a00003642114c44d8a70
# bad: [ffd602eb4693bbb49b301fa059b109bbdebf9524] Merge tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
git bisect bad ffd602eb4693bbb49b301fa059b109bbdebf9524
# good: [9250d20e9ecedab6aa331a127fbfc1272383ed72] kbuild: remove scripts/basic/% build target
git bisect good 9250d20e9ecedab6aa331a127fbfc1272383ed72
# good: [29b47ce987591254602cd7b69acd0eecc62f0a70] tpm: move TPM space code out of tpm_transmit()
git bisect good 29b47ce987591254602cd7b69acd0eecc62f0a70
# bad: [901615cb916dc955fb7bda4e34402bf263532e4a] tpm: move tpm_chip definition to include/linux/tpm.h
git bisect bad 901615cb916dc955fb7bda4e34402bf263532e4a
# bad: [a3fbfae82b4cb3ff9928e29f34c64d0507cad874] tpm: take TPM chip power gating out of tpm_transmit()
git bisect bad a3fbfae82b4cb3ff9928e29f34c64d0507cad874
# good: [2677ca98ae377517930c183248221f69f771c921] tpm: use tpm_try_get_ops() in tpm-sysfs.c.
git bisect good 2677ca98ae377517930c183248221f69f771c921
# good: [719b7d81f2048477f89f7303e2b4ddec8197e6e3] tpm: introduce tpm_chip_start() and tpm_chip_stop()
git bisect good 719b7d81f2048477f89f7303e2b4ddec8197e6e3
# first bad commit: [a3fbfae82b4cb3ff9928e29f34c64d0507cad874] tpm: take TPM chip power gating out of tpm_transmit()