Messages in this thread |  | | Date | Sun, 19 Nov 2000 16:50:17 +0000 | From | Anton Altaparmakov <> | Subject | Re: How to add a drive to DMA black list? |
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At 11:26 17/11/2000, Alan Cox wrote: > > drive problem, considering that another ide drive on the same controller > > works fine with DMA enabled (a QUANTUM TRB850A) while the Conner > > Peripherals 1275MB - CFS1275A fails with DMA enabled. They are in fact > both > >And the Conner drives work fine on a VIA MVP3 it seems. You need to try >the drive with multiple controllers to be sure its not a PIIX bug that only >trips on that drive (or indeed a bug in the combination)
I have now tried the drive (which is actually a seagate drive but it identifies itself as a conner) on my new Promise ATA-100 controller and the drive works fine with DMA enabled. So you were quite right, it's the PIIX driver/tuning which kills it.
Anton
-- "Education is what remains after one has forgotten everything he learned in school." - Albert Einstein -- Anton Altaparmakov Voice: +44-(0)1223-333541(lab) / +44-(0)7712-632205(mobile) Christ's College eMail: AntonA@bigfoot.com / aia21@cam.ac.uk Cambridge CB2 3BU ICQ: 8561279 United Kingdom WWW: http://www-stu.christs.cam.ac.uk/~aia21/
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