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SubjectCan't activate dma on ide/sata under 2.6.5/9 + Intel E7520 chipset
Hi,
hdparm -d1 /dev/hda (or /dev/sda) returns "HDIO_SET_DMA failed:
Operation not permitted" on both disks.
Is it possible that there's no (full?) support for ICH5-R in those kernels?
The motherboard is Intel SE7520BD2, exact kernel versions which were
tried are:
2.6.9-1.667smp #1 SMP Tue Nov 2 15:09:11 EST 2004 x86_64 x86_64 x86_64
GNU/Linux (FC3 64bit)
2.6.5-1.358smp #1 SMP Sat May 8 09:28:14 EDT 2004 x86_64 x86_64 x86_64
GNU/Linux (FC2 64bit)

2.4.21/22 (RH9) and 2.6.7* (AS3.0) do not show this problem on the board.

Does anybody have any idea/patch/hack?

Thanks a lot,
Edward
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