git bisect start
# bad: [6f7b96f6cb5f5c156cf4e69b1fa1ec0e57b01677] syscall: follow convention for generated code comments in linux/riscv64 files
git bisect bad 6f7b96f6cb5f5c156cf4e69b1fa1ec0e57b01677
# bad: [21445b091ec0a0625282603e2730d10b34396375] runtime: make the scavenger self-paced
git bisect bad 21445b091ec0a0625282603e2730d10b34396375
# good: [543c6d2e0dcd24886fce6c00e84b7238c30c1c0b] math, cmd/compile: rename Fma to FMA
git bisect good 543c6d2e0dcd24886fce6c00e84b7238c30c1c0b
# good: [05aa4a7b7447051d187e0a86e53eee99fe065851] runtime: set GODEBUG=asyncpreemptoff=1 in TestCrashDumpsAllThreads
git bisect good 05aa4a7b7447051d187e0a86e53eee99fe065851
# bad: [1b0b9809046c1862f8ea0240fe016e516c67676f] runtime: add async preemption support on ARM64
git bisect bad 1b0b9809046c1862f8ea0240fe016e516c67676f
# bad: [e1ddf0507c6d6dcbe1a2ebe54b8728498edf0995] runtime: count scavenged bits for new allocation for new page allocator
git bisect bad e1ddf0507c6d6dcbe1a2ebe54b8728498edf0995
# bad: [73317080e12234defb59f84e2b5b15f69650b5d5] runtime: add scavenging code for new page allocator
git bisect bad 73317080e12234defb59f84e2b5b15f69650b5d5
# bad: [39e8cb0faac7785f89b21246a45e8cf8d5bc7d95] runtime: add new page allocator core
git bisect bad 39e8cb0faac7785f89b21246a45e8cf8d5bc7d95
# first bad commit: [39e8cb0faac7785f89b21246a45e8cf8d5bc7d95] runtime: add new page allocator core

git bisect start '--term-new=fixed' '--term-old=unfixed'
# fixed: [9c8c27a318459e76970a8ac0f171a8fc1a6ef5b9] syscall: use SOCK_CLOEXEC when creating sockets
git bisect fixed 9c8c27a318459e76970a8ac0f171a8fc1a6ef5b9
# unfixed: [8054b13536fc71d6f8867f90d7614de4064191ba] runtime: on plan9 don't return substitute address for sysReserve
git bisect unfixed 8054b13536fc71d6f8867f90d7614de4064191ba
# fixed: [5fd75810060e72ba9da44be85c7767417c8bbee7] cmd/go: fix check for -Wp,-U in cgo CFLAGS
git bisect fixed 5fd75810060e72ba9da44be85c7767417c8bbee7
# fixed: [fa3a121a79f85a4c957f29372b5ebfde7211a980] runtime: add a simple version number parser
git bisect fixed fa3a121a79f85a4c957f29372b5ebfde7211a980
# fixed: [acf3ff2e8a0ee777a35b42879c90a1d5a130988f] runtime: convert page allocator bitmap to sparse array
git bisect fixed acf3ff2e8a0ee777a35b42879c90a1d5a130988f
# unfixed: [a18608a044afed86c789e541db65526b9ccacef9] os/exec: document that cmd.Start() sets the Process field
git bisect unfixed a18608a044afed86c789e541db65526b9ccacef9
# unfixed: [386b1a4280d4a32cd8b69a92ba91b6d98832b721] runtime: treat call from runtime as transient in TestDebugCall
git bisect unfixed 386b1a4280d4a32cd8b69a92ba91b6d98832b721
# unfixed: [2ac1ca9160f52907ce1cd04738c80b1c055b5ba6] cmd/vet: honor analyzer flags when running vet outside $GOROOT/src
git bisect unfixed 2ac1ca9160f52907ce1cd04738c80b1c055b5ba6
# first fixed commit: [acf3ff2e8a0ee777a35b42879c90a1d5a130988f] runtime: convert page allocator bitmap to sparse array