Re: aha152x in 2.1.121 causes dropped ppp packets

marcel@ch.twi.tudelft.nl
Fri, 18 Sep 1998 18:45:42 +0200

David Mansfield wrote (david@cobite.com)
>
> Hello,
>
> This an annoyance that I've seen since 2.0.3x that I decided to mention in
> case in can or should be fixed.
>
> SUMMARY: aha152x with DAT combined with IDE activity (i.e. tar) blocks
> PPP. If I am accessing a SCSI-DAT drive (HP SureStore) via my aha152x
> card AND writing data to IDE disk, the system loses the ability to process
> serial port information.
>
> Bug or feature?

I guess it's a bug in your hardware:) All devices you mention need
CPU power to function, in this case there is not enough CPU power to
handle everything. It might help to unmask the IRQ's for the IDE drive
(see the hdparm manual) and/or swap your SCSI controller for an intelligent
one.

btw. what type of serial ports do you have (8250/14550 or 16550A)?

Marcel Ammerlaan

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