From: "Theo de Raadt" <deraadt@openbsd.org>
Subject: Re: Missing errno # 71 in man errno
To: "Todd C. Miller" <millert@openbsd.org>
Cc: Ingo Schwarze <schwarze@usta.de>, Angelo Rossi <angelo.rossi.homelab@gmail.com>, tech@openbsd.org, jsg@openbsd.org
Date: Tue, 15 Jul 2025 13:49:02 -0600

Todd C. Miller <millert@openbsd.org> wrote:

> On Tue, 15 Jul 2025 12:45:25 -0600, "Theo de Raadt" wrote:
> 
> > I suspect what's going on here is the driver wants to provide a unique
> > error number for a failure condition which will print a different
> > (obscure, but different) error message to a user or an unknown test
> > program.  So they chose EREMOTE, rather than ENOMEDIUM or EBADRPC or
> > 37373.
> 
> Yes, that seems likely.  The Intel drm code appears to take a lot
> of liberties with errno values.  For example, it uses ESTALE for
> some things.  Who knows whether those values ever reach the user.
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Right.