Subject: Re: [PATCH net] skge: dma_sync the whole receive buffer

From: poma <[email-masked]>
Date: Wed, 14 Aug 2013 12:20:03 +0200

On 14.08.2013 03:00, Stephen Hemminger wrote:
> On Tue, 13 Aug 2013 15:09:55 -0700 (PDT)
> David Miller <[email-masked]> wrote:
> 
>> From: Stephen Hemminger <[email-masked]>
>> Date: Sat, 10 Aug 2013 15:02:07 -0700
>>
>>> The DMA sync should sync the whole receive buffer, not just
>>> part of it. Fixes log messages dma_sync_check.
>>>
>>> Signed-off-by: Stephen Hemminger <[email-masked]>
>>
>> Applied, but I really suspect that your "check DMA mapping errors"
>> patch has added a serious regression.  A regression much worse than
>> the bug you were trying to fix with that change.
> 
> Argh. The problem is deeper than that. Device got broken somewhere between
> 3.2 and 3.4. My old Dlink card works on 3.2 but gets DMA errors on 3.4.
> The config's are different though so checking that as well.
> 

Can I help you with debugging?
DGE-530T is rather solid device.

poma