I did some testing on my laptop with linux 2.2.13.
So far as I can tell my HD on the laptop is running in DMA mode.
Additionally, the 'hdparm -u 1 /dev/hda' had no effect on the overrun
It acted pretty much as Jim has described. With the FIFO level mod,
Nearly 100% failure at 115200, 10% failure at 57600.
At 115200 it always fails, so far as I can tell, right away. Long
before any data is actually written to disk.
One of the "other" drivers must be holding of the serial interrupt
for too long.
-- Brian Litzinger <email@example.com>
Copyright (c) 1999 By Brian Litzinger, All Rights Reserved
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