[alsa-devel] USB transfer_buffer allocations on 64bit systems
daniel at caiaq.de
Sat Apr 10 14:49:12 CEST 2010
On Fri, Apr 09, 2010 at 07:19:22PM +0100, Pedro Ribeiro wrote:
> On 9 April 2010 19:09, Daniel Mack <daniel at caiaq.de> wrote:
> > On Fri, Apr 09, 2010 at 12:01:27PM -0400, Alan Stern wrote:
> >> I don't see anything suspicious. The transfer_buffer addresses repeat
> >> every 32 URBs, and the DMA addresses cycle almost entirely uniformly
> >> from 0x20000000 to 0x23ffffff in units of 0x2000 (there are a few gaps
> >> where the interval is a little bigger).
> > 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?
> > Daniel
> It has 4 GB.
Upgraded my machine now to 4GB, but I still can't reproduce this bug.
Pedro, can you send your config, please?
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