const golang.org/x/sys/unix.EDEADLOCK

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux_amd64.go#L546: 	EDEADLOCK       = syscall.Errno(0x23)

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)