6. Pitfalls to avoid
IDE driver and interrupt latency
The default of the IDE driver is to disallow interrupts during its
own interrupt processing. This causes
huge interrupt latencies which are not tolerable with many drivers,
including these. Therefore you need
to enable interrupt unmasking using hdparm -u 1 /dev/hda. Refer to
hdparm's man page.
Resource conflicts with other drivers
Several drivers compete for the same resources, eg. serial and baycom
ser12, lp and baycom
par96/picpar, or sound and soundmodem. Either unload one of the
conflicting driver, or tell it to release the
resource. In the case of the serial driver, use setserial /dev/cuax
uart none.
Please read (like Thomas says) hdparm's man page. This can cause a lot of
grief in some case's, belive me i know.
-- Regards Richard, 73. | "I see" said the blind man to his AX25 pa3gcu@pi8mid.#zld.nld.eu | deaf en dumb daughter, who replyed, smtp pthlsfvr.pgruum@b4net.lt | "Yes" Linux AX25. NET/ROM, "I have heard inet fnskifl@rele.tunk.net | that what you see is what you get".