vsivsi

Maskcheck is a repro of opmask clobbering by golang async preemption

A GNU C / Asm implementation is here: https://gist.github.com/vsivsi/8511aca1bac528f49fbb45a636afa4b5

NOTE! This must be run on an Intel processor supporting AVX512F/DQ

To test: go test -count 1 -timeout 15m -run '^TestMask$' gist.github.com/vsivsi/fff8618ace4b02eb410dd8792779bf32

This should fail with something like:

vsivsi

GNU C / Asm test of AVX512 opmask clobbering on Darwin

This is an alternative implemenation of: https://gist.github.com/vsivsi/fff8618ace4b02eb410dd8792779bf32

NOTE! This must be run on an Intel processor supporting AVX512F/DQ

Build and run (in background): gcc testmask.c testmask.s && ./a.out &

Send a bunch of SIGURG signals: for ((x=0;x<20;x++)); do kill -s URG <pid>; sleep 0.01; done

vsivsi

func main() {

	dir := "./"
	bad := "\"*:<>?/\\|"

	files, err := os.ReadDir(dir)
	if err != nil {
		panic(err)
	}