Hi all, Does anyone know what the 'stty sane' invocation in kunit.py is about? The other day I ran into an issue when running it via watchexec[1]. At the time I believed that it was there to clean up after the firmware that QEMU runs potentially messed up the terminal. However, I just realised I'm not sure if that makes sense - stty is about setting terminal settings via ioctl. I don't think QEMU or its guests are messing up the terminal with ioctls, they're just writing funny control characters. What's going on here? I guess one of: 1. Terminal is messed up with ctrl chars but ioctls are the easiest/only way to reliably clean it up. 2. Nobody thought about this unimportant detail so hard before and there's no particular rationale in place here. 3. I made bad assumptions about why the `stty sane` is there. If it's 1 or 2 I wonder if there's an alternative way to clean up without getting the SIGTTOU issue. Or, maybe it doesn't matter and the fact that this was ever a problem is just a bug in watchexec (maybe you can tell I haven't actually taken the time to research the SIGTTOU thing properly). But thought I'd raise it in case this points to issues people might have using kunit.py in CI. [1] https://github.com/watchexec/watchexec/issues/874 [2] https://gist.github.com/bjackman/27fd9980d87c5556c20e67a6ed891500
