Re: 2.1.111: IDE DMA disabled?

David S. Miller (
Sat, 25 Jul 1998 18:35:58 -0700

Date: Sat, 25 Jul 1998 18:22:49 -0700 (PDT)
From: Linus Torvalds <>

Personally, I never understood why DMA was enabled by default
anyway. As far as I can tell the only sane thing is to have it
always disabled by default, and enable it with hdparm.

True, but still leave this as a compile time option so that other
architectures (where the scope of possible chipsets etc. are known and
well bounded wrt. to quality and reliability when DMA is enabled) can
have it enabled by default if they so wish.

David S. Miller

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at