git bisect start
# bad: [1fb3b526df3bd7647e7854915ae6b22299408baf] Merge tag 'docs-5.2a' of git://git.lwn.net/linux
git bisect bad 1fb3b526df3bd7647e7854915ae6b22299408baf
# good: [e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd] Linux 5.1
git bisect good e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd
# bad: [80f232121b69cc69a31ccb2b38c1665d770b0710] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect bad 80f232121b69cc69a31ccb2b38c1665d770b0710
# good: [e0dccbdf5ac7ccb9da5612100dedba302f3ebcfe] Merge tag 'staging-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
git bisect good e0dccbdf5ac7ccb9da5612100dedba302f3ebcfe
# good: [5f0d736e7f7db586141f974821b6ca6c1d906d5b] Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
git bisect good 5f0d736e7f7db586141f974821b6ca6c1d906d5b
# bad: [5abe37954e9a315c35c9490f78d55f307c3c636b] Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
git bisect bad 5abe37954e9a315c35c9490f78d55f307c3c636b
# good: [8b35ad6232c462b02e397e87ce702bcddd4ba543] Merge tag 'leds-for-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
git bisect good 8b35ad6232c462b02e397e87ce702bcddd4ba543
# good: [662156641bc409a28fa313fca1a755105425d278] block: don't drain in-progress dispatch in blk_cleanup_queue()
git bisect good 662156641bc409a28fa313fca1a755105425d278
# good: [d3511f53bb2475f2a4e8460bee5a1ae6dea2a433] Merge branch 'parisc-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
git bisect good d3511f53bb2475f2a4e8460bee5a1ae6dea2a433
# good: [149e703cb8bfcbdae46140b108bb6f7d2407df8f] Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
git bisect good 149e703cb8bfcbdae46140b108bb6f7d2407df8f
# bad: [28ba53c07638f31b153e3a32672a6124d0ff2a97] unicode: refactor the rule for regenerating utf8data.h
git bisect bad 28ba53c07638f31b153e3a32672a6124d0ff2a97
# bad: [4b99faa23c51ca31312b9afb876e8e5878daeb80] ext4: cond_resched in work-heavy group loops
git bisect bad 4b99faa23c51ca31312b9afb876e8e5878daeb80
# good: [d454a27384f6eb05904a59d1607461b7ad312aa9] ext4: fix prefetchw of NULL page
git bisect good d454a27384f6eb05904a59d1607461b7ad312aa9
# bad: [e5d01196c0428a206f307e9ee5f6842964098ff0] ext4: ignore e_value_offs for xattrs with value-in-ea-inode
git bisect bad e5d01196c0428a206f307e9ee5f6842964098ff0
# bad: [345c0dbf3a30872d9b204db96b5857cd00808cae] ext4: protect journal inode's blocks using block_validity
git bisect bad 345c0dbf3a30872d9b204db96b5857cd00808cae
# good: [1e83bc8156028a938845a869a3317c3cab9630ac] ext4: use BUG() instead of BUG_ON(1)
git bisect good 1e83bc8156028a938845a869a3317c3cab9630ac
# first bad commit: [345c0dbf3a30872d9b204db96b5857cd00808cae] ext4: protect journal inode's blocks using block_validity