sio: lots of silo overflows on Asus K8V with Moxa Smartio C104H/PCI

[M. Warner Losh]

In message: <20040501140658.F19558 at gamplex.bde.org>
            Bruce Evans <bde at zeta.org.au> writes:
: Not using a fast interrupt handler may cause occasional silo overflows,
: but shouldn't cause many.  The problem is mostly elsewhere (Giant locking
: for too long), but siointr() shouldn't use Giant locking.  Try the following
: patch if you still have shared interrupts:

Is the tty layer giant safe now?

Warner