Messages in this thread |  | | Date | Sat, 15 Jun 1996 22:27:48 +0200 (MET DST) | From | Bernhard Kaindl <> | Subject | Re: DMA past and present |
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On Sat, 15 Jun 1996, Steve VanDevender wrote:
> Quitting DOOM would > get me a message like "DMA timed out -- IRQ/DRQ conflict?" But as far > as I could tell, there was no IRQ conflict, and my GUS was the only > device that used DMA.
As far as I know, linux-doom's soundserver uses 16bit DMA normally, and I've also have such problems when trying to do 16bit WAV-playback with my AHA-1542. I think there are some difficulties with two 16bit DMA transfers at the same time, but I don't know the exact source of it.
Does someone know more?
Bernhard
> > Recently I finally achieved the Holy Grail for my old but serviceable > ISA-bus system -- a working BusLogic BT-545C to plug a Fujitsu 1G SCSI > disk into. And it works -- almost. But it has symptoms that at least > at one level seem analogous to the GUS problem -- it gets SCSI timeouts > with messages like this: > > Jun 15 00:52:18 tzadkiel linux: scsi : aborting command due to timeout : pid 26423, scsi0, channel 0, id 0, lun 0 Read (6) 00 80 32 02 00 > Jun 15 00:52:23 tzadkiel linux: scsi0: Aborting CCB #26437 to Target 0 > Jun 15 00:52:23 tzadkiel linux: scsi : aborting command due to timeout : pid 26424, scsi0, channel 0, id 0, lun 0 Read (6) 06 20 22 08 00 > Jun 15 00:52:23 tzadkiel linux: scsi0: Aborting CCB #26438 to Target 0 > Jun 15 00:52:23 tzadkiel linux: SCSI host 0 abort (pid 26423) timed out - resetting > Jun 15 00:52:23 tzadkiel linux: SCSI bus is being reset for host 0 channel 0. > Jun 15 00:52:23 tzadkiel linux: scsi0: Sending Bus Device Reset CCB #26439 to Target 0 > Jun 15 00:52:23 tzadkiel linux: SCSI host 0 abort (pid 26424) timed out - resetting > Jun 15 00:52:23 tzadkiel linux: SCSI bus is being reset for host 0 channel 0. > Jun 15 00:52:23 tzadkiel linux: scsi0: Resetting BusLogic BT-54xC due to Target 0 > Jun 15 00:52:23 tzadkiel linux: scsi0: *** BusLogic BT-54xC Initialized Successfully *** >
+-----------------------------------------------------------------------+ | Bernhard Kaindl, Tallak 95, 8103 Rein, Austria | | Autor of kmenu, first kernel config tool for linux w/ automatic menus | +-----------------------------------------------------------------------+
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