git bisect start
# bad: [e0902a53cf03a4c83f11035a662f141a1c641ee3] Add C.ASCII locale as an alias for C
git bisect bad e0902a53cf03a4c83f11035a662f141a1c641ee3
# good: [68530599e61cf9fef3fcc91650e7cef21837fce7] libX11 1.3.3
git bisect good 68530599e61cf9fef3fcc91650e7cef21837fce7
# bad: [47b04195d8a31c8f9e6dd804196162c6cfca3ac6] LINEAR_RGB_InitSCCData: When malloc fails, don't try to free unallocated bits
git bisect bad 47b04195d8a31c8f9e6dd804196162c6cfca3ac6
# good: [b089b53b697c2851db2985d32af3b29f1da5e31e] Honest. Extensions get to filter async errors too.
git bisect good b089b53b697c2851db2985d32af3b29f1da5e31e
# bad: [fd82552d5c0ce1931f29006a0c36f5e03cf8577e] Merge branch 'xlib-xcb-thread-fixes'
git bisect bad fd82552d5c0ce1931f29006a0c36f5e03cf8577e
# good: [aab43278ae619eb57d2dd9c7396f460f078588fc] Use InternalLockDisplay on code paths called from LockDisplay.
git bisect good aab43278ae619eb57d2dd9c7396f460f078588fc
# good: [adcd0ec209abf832a769d52db660fb37eaad6e0c] Remove launchd logic from _XConnectXCB as it's handled in XCB
git bisect good adcd0ec209abf832a769d52db660fb37eaad6e0c
# bad: [933aee1d5c53b0cc7d608011a29188b594c8d70b] Fix Xlib/XCB for multi-threaded applications (with caveats).
git bisect bad 933aee1d5c53b0cc7d608011a29188b594c8d70b