Messages in this thread | | | Date | Mon, 20 Mar 2000 06:48:03 -0800 (PST) | From | Andre Hedrick <> | Subject | Re: Linux 2.3.x and Promise IDE card |
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yOn Mon, 20 Mar 2000, Ove Ewerlid wrote:
> Andre Hedrick wrote: > > > > That is because one could enable the chipset with out AUTODMA and then > > try, but crash the system, to retune the drive but the chipset is still > > set at PIO 0. Thus attempting to do DMA transfers from the drive to a > > PIO 0 configured host adapter will CRASH........ > > > > This will be fixed or is pixed in 2.3.99pre2 > > Just tried it with 2.3.99pre3 and the DMA crash is still there (20262 > chipset). > Still works fine with no DMA (at reduced speed). > (This time I saw a crash error message saying that DMA was attempted > while > not supported by the chipset, consistent with what you say above.)
Mar 20 02:20:43 p6dnf kernel: PDC20262: ROM enabled at 0xfebb0000 PDC20262: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode. PDC20262: FORCING PRIMARY MODE BIT 0x00 -> 0x01 MASTER PDC20262: FORCING SECONDARY MODE BIT 0x00 -> 0x01 MASTER ide0: BM-DMA at 0xef00-0xef07, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xef08-0xef0f, BIOS settings: hdc:DMA, hdd:pio hda: QUANTUM FIREBALL ST6.4A, 6149MB w/81kB Cache, CHS=13328/15/63, UDMA(33) hdb: QUANTUM FIREBALL ST3.2A, 3079MB w/81kB Cache, CHS=782/128/63, UDMA(33) hdc: QUANTUM FIREBALLP KA9.1, 8809MB w/371kB Cache, CHS=17898/16/63, UDMA(66)
I went and dug-out this card see if it was broken and it is not.
Andre Hedrick The Linux ATA/IDE guy
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