On Wed, 30 Jul 1997, Colin Wood wrote:

> Is there any kind of adverse interaction between spltty() and splzs() that
> might be causing the problem?  Or is spltty only used by the console ite
> stuff and not by a pty?

And in the `answer the question, bucko' department:

I'm not aware of any interactions between the spltty() and splserial()
(nee splzs()) calls.

spltty() is used by the tty subsystem in general, but does not affect the
higher-priority interrupts that splserial() blocks.

--scott