Net DMA Technical Note

Updated -

In some rare and specific circumstances on a few systems, data corruption can occur when using NET_DMA. In these cases, a call to dma_skb_copy_datagram_iovec() to perform the DMA, which ultimately calls into the ioatdma driver, does not deliver the data to the expected location. The issue is not directly the ioatdma driver, it is due to the need of the driver to call get_user_pages() which in...

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In