On Thu, 2015-04-16 at 09:24 -0300, casca...@linux.vnet.ibm.com wrote: 
> Yes, this looks like the driver is not syncing the DMA buffers. Unmap is
> supposed to synchronize as well.
> 

For small rx packets (< 256 bytes), we sync the DMA buffer before we
copy the data to another SKB.  For larger packets, we unmap the DMA
buffer.  Do we see the corruption in both cases?

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