git bisect log
# bad: [6d028043b55e54f48fbdf62ea8ce11a4ad830cac] Add linux-next specific files for 20190830
# good: [4a64489cf8e21a17fd6dd88935818ba7307ba996] Merge tag 'Wimplicit-fallthrough-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
git bisect start 'origin/master' 'origin/stable'
# bad: [199d454c0775386a645dd9e80b486c346816762f] Merge remote-tracking branch 'crypto/master'
git bisect bad 199d454c0775386a645dd9e80b486c346816762f
# bad: [0fdcb1ec5bc8e5a40eb6ede7ac1071cfae01a3c0] Merge remote-tracking branch 'hid/for-next'                                                                                           
git bisect bad 0fdcb1ec5bc8e5a40eb6ede7ac1071cfae01a3c0
# bad: [858364b05a8dc9674b93022eab1987b8671c2dc5] Merge remote-tracking branch 'tegra/for-next'
git bisect bad 858364b05a8dc9674b93022eab1987b8671c2dc5
# bad: [69c8ca5334edaa9ec384ab1f474ff2192fde686d] Merge remote-tracking branch 'actions/for-next'
git bisect bad 69c8ca5334edaa9ec384ab1f474ff2192fde686d
# good: [10826e8d36de850875acc8bf1cb8a58b3dd5e313] Merge remote-tracking branch 'dma-mapping/for-next'
git bisect good 10826e8d36de850875acc8bf1cb8a58b3dd5e313
# good: [e7e0da219c21d58170971e07c469a632ee258d94] Merge branches 'arm/soc', 'arm/fixes' and 'arm/drivers' into for-next
git bisect good e7e0da219c21d58170971e07c469a632ee258d94                                                                                                                                
# good: [98ee6cd3ed6691a2fa8f79f58824604c7bd6d2d3] Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core
git bisect good 98ee6cd3ed6691a2fa8f79f58824604c7bd6d2d3
# good: [a39e44c197821f1cd54fd191db8454f3d51548ad] Merge remote-tracking branch 'arm/for-next'
git bisect good a39e44c197821f1cd54fd191db8454f3d51548ad
# bad: [ff560c0d79d559b1918a4b678eb810e00a578c35] arm64: atomics: Use K constraint when toolchain appears to support it
git bisect bad ff560c0d79d559b1918a4b678eb810e00a578c35
# bad: [eb3aabbfbfc203082d06a64517df97a3746ba9ea] arm64: atomics: Remove atomic_ll_sc compilation unit
git bisect bad eb3aabbfbfc203082d06a64517df97a3746ba9ea
# good: [580fa1b874711d633f9b145b7777b0e83ebf3787] arm64: Use correct ll/sc atomic constraints
git bisect good 580fa1b874711d633f9b145b7777b0e83ebf3787
# bad: [3337cb5aea594e4090a660e3fc3250bb669b1305] arm64: avoid using hard-coded registers for LSE atomics
git bisect bad 3337cb5aea594e4090a660e3fc3250bb669b1305
# bad: [addfc38672c73efd5c4e559a2e455b086e3e20c5] arm64: atomics: avoid out-of-line ll/sc atomics
git bisect bad addfc38672c73efd5c4e559a2e455b086e3e20c5
# first bad commit: [addfc38672c73efd5c4e559a2e455b086e3e20c5] arm64: atomics: avoid out-of-line ll/sc atomics