[PATCH 0/8] fsldma: lockup fixes

[Ira W. Snyder]

On Mon, Feb 28, 2011 at 01:36:38PM +0200, Felix Radensky wrote:
> Hi Ira,
> 
> I've tried your patches with linux-2.6.38-rc6 on P2020RDB.
> DMA test fails with the following errors if threads_per_chan != 1
> 
> dma0chan0-copy1: terminating after 1 tests, 1 failures (status 0)
> dma0chan0-copy2: #0: test timed out
> 
> I've run the test like this:
> 
> modprobe dmatest threads_per_chan=2 iterations=1
> 

Thanks Felix. This works fine on the 83xx DMA controller. When you have
a chance, can you add "#define DEBUG 1" as the first line of
drivers/dma/fsldma.c and then rerun your test with:

modprobe dmatest threads_per_chan=2 iterations=1 max_channels=1

And send me the dmesg output.

I don't quite understand the difference between links and lists in the
85xx controller yet. I'll work my way through the datasheet this morning
and send out a fixed patch.

Thanks very much for running the tests!

Ira