git bisect start
# status: waiting for both good and bad commits
# good: [5f81add265d9969ed8517616a4d803504170cfd3] Automatic date update in version.in
git bisect good 5f81add265d9969ed8517616a4d803504170cfd3
# status: waiting for bad commit, 1 good commit known
# bad: [98c740fa46f95fb5f4cfb7880e23c596d7994908] [gdb/testsuite] Fix flake8 error in gdb.python/py-selected-context.py
git bisect bad 98c740fa46f95fb5f4cfb7880e23c596d7994908
# bad: [d19862435df418a2ec78d078048f54d115c67a66] gdbserver: require_running_or_break for the 'z' and 'vCont' packets
git bisect bad d19862435df418a2ec78d078048f54d115c67a66
# bad: [ee89a3c9eff5aa2d1345a1a1b258e3ed87945ed2] gdb/python: new selected_context event
git bisect bad ee89a3c9eff5aa2d1345a1a1b258e3ed87945ed2
# good: [602c91f4d1b01b76f559450d216846d0c1c599fb] PowerPC: Fix dmxxshake128pad test case for big-endian targets
git bisect good 602c91f4d1b01b76f559450d216846d0c1c599fb
# first bad commit: [ee89a3c9eff5aa2d1345a1a1b258e3ed87945ed2] gdb/python: new selected_context event
# first bad commit: [ee89a3c9eff5aa2d1345a1a1b258e3ed87945ed2] gdb/python: new selected_context event