Re: 2.4.16-ben0 DVD block i/o breaks mouse, pmu
>> The question is why DMA would have been disabled in the first place ?
>> The kernel is enabling DMA by default on all devices that support it
>> connected to the Apple IDE interface.
>On my Lombard, I see DMA getting enabled sometime during running of the
>initscripts, so it seems to get delayed a lot (the kernel is a couple of
>weeks old). I can check the logs to see what it correlates with, if that
One thing can cause the kernel not to enable DMA... if the drive
is in the kernel's "black list" of drives known to be broken with it.