incomplete faxes

Jan Kasprzak (kas@informatics.muni.cz)
Mon, 14 Sep 1998 10:27:23 +0200


Gert Doering wrote:
: 
: > It could have been merely chance, but recently a failed transmission
: > succeeded a few minutes later, after the backup had completed.
: 
: It *is* possible, but I'd rather consider a bad phone line or so.  Even if
: highly I/O bound, the system should be able to keep up with a 19200 bps
: fax transmission (that's only 2 Kbyte/second!).

	This depends on the machine UART as well as on the other hardware
in that box. I used to have problems with 486/66 and 16450 UART during
the SCSI transfer (I had AHA1542 host adapter). It seems that AHA1542
during the bus-master transfer locks the bus for such time that 16450 
overruns.

-Yenya

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