On Sun, Feb 14, 2021 at 8:38 AM Jens Axboe <axboe@xxxxxxxxx> wrote:
>
> > Similarly it looks like opening of "/dev/tty" fails to
> > return the tty of the caller but instead fails because
> > io-wq threads don't have a tty.
>
> I've got a patch queued up for 5.12 that clears ->fs and ->files for the
> thread if not explicitly inherited, and I'm working on similarly
> proactively catching these cases that could potentially be problematic.
Well, the /dev/tty case still needs fixing somehow.
Opening /dev/tty actually depends on current->signal, and if it is
NULL it will fall back on the first VT console instead (I think).
I wonder if it should do the same thing /proc/self does..
Linus
