HDIO_SET_DMA failed: Operation not permitted

acjt · 05-02-2003, 03:02 AM

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?