[alsa-devel] USB transfer_buffer allocations on 64bit systems

[Alan Stern]

On Fri, 9 Apr 2010, Pedro Ribeiro wrote:

> > The DMA pointers do indeed look sane. I wanted to take a deeper look at
> > this and set up a 64bit system today. However, I fail to see the problem
> > here. Pedro, how much RAM does your machine have installed?

> It has 4 GB.

That means DMA mapping cannot be the cause of the problem.  :-(

Alan Stern