Interrupt problem; you'll need a driver upgrade
PCMCIA Serial and Modem Issues
PCMCIA works very very very slowly (Benson Fung)
Date: 2000, Aug 28
From: David Hinds <email@example.com>
This is an interrupt delivery problem. You will need to upgrade to a
fairly recent PCMCIA package (3.1.19 is current), then specify:
which, for this adapter, forces it to use PCI interrupts.
to: "Interrupt problem; you'll need a driver upgrade"