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-   -   HDIO_SET_DMA failed: Operation not permitted (https://www.linuxquestions.org/questions/linux-hardware-18/hdio_set_dma-failed-operation-not-permitted-57781/)

acjt 05-02-2003 03:02 AM
HDIO_SET_DMA failed: Operation not permitted
 
Just finished installing Gentoo (again) from stage2. When I hdparm on my hard disk, I get this error.
PHP Code:
/dev/hda:
setting 32-bit I/O support flag to 3
setting multcount to 16
setting unmaskirq to 1 (on)
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Operation not permitted 
I assume this must be something with my kernel config, but I have no idea - I never changed (as far as I know) anything to do with DMA in the config.

markus1982 05-02-2003 03:54 AM
Have you built your kernel with any security patches ?

acjt 05-02-2003 05:27 AM
There could be some in there, I really wouldn't know sorry. I just use gs-sources (from gentoo portage) and set the items I need. I don't remove other things in the kernel because I don't know what they are! So if some are there by default, they would stay there.

markus1982 05-02-2003 05:59 AM
Okay, well that could be 1 problem. Maybe check if DMA is enabled in the kernel (which should be the case).

bennyp 05-02-2003 10:52 PM
how would someone do that?


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