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> beginning with 2.4.21-pre1 the kernel disables DMA on my > regular ATA harddrives. > > Upto 2.4.20 (Uniform Multi-Platform E-IDE driver Revision: 6.31) > there have never been any problems, now I get > > ! Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4 > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > ! VP_IDE: IDE controller at PCI slot 00:04.1 > VP_IDE: chipset revision 16 > VP_IDE: not 100% native mode: will probe irqs later > VP_IDE: VIA vt82c686a (rev 22) IDE UDMA66 controller on pci00:04.1 > ide0: BM-DMA at 0xd800-0xd807, BIOS settings: hda:DMA, hdb:DMA > ide1: BM-DMA at 0xd808-0xd80f, BIOS settings: hdc:DMA, hdd:DMA > hda: Maxtor 94098H6, ATA DISK drive > hdb: LITEON DVD-ROM LTD122, ATAPI CD/DVD-ROM drive > + hda: DMA disabled > + blk: queue c0395e20, I/O limit 4095Mb (mask 0xffffffff) > + hdb: DMA disabled > hdc: ST340823A, ATA DISK drive > hdd: R/RW 4x4x32, ATAPI CD/DVD-ROM drive > + hdc: DMA disabled > + blk: queue c039626c, I/O limit 4095Mb (mask 0xffffffff) > + hdd: DMA disabled > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > ide1 at 0x170-0x177,0x376 on irq 15 I think that they are superflous debugging messages, and that DMA is actually re-enabled silently afterwards. I could be wrong, though. John. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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