Go 1.13: Spawn fails with "operation not permitted"

[neild]

Spawn fails on Go 1.13:

$ go run ./examples/process/ 10
F0625 11:06:45.549888  104755 process.go:45] fork/exec /usr/bin/bc: operation not permitted
exit status 1

Culprit is https://go-review.googlesource.com/c/go/+/178919 ("syscall: use Ctty before fd shuffle").

If I'm following correctly, the problem is here:

	cmd.SysProcAttr = &syscall.SysProcAttr{
		Setsid:  true,
		Setctty: true}

Setting Setctty sets the controlling terminal to SysProcAttr.Ctty, which is unset (i.e., 0), which is probably not the desired behavior.

[neild]

Not sure whether this is a problem here or in https://go-review.googlesource.com/c/go/+/178919, now that I look at this more closely. Will reopen golang/go#29458 to discuss.

[skalle]

Ok cool, I'll hold back for a bit until that's figured out.

[skalle]

No updates for a while, closing.