Ubuntu
linux-aws package

  1. Xenial (16.04)
  2. Bug #1668129
  3. Comment #25

Comment 25 for bug 1668129

Revision history for this message
Matt Wilson (msw-amazon) wrote :

Yes, ballooning has been a constant source of problems which is why it is disabled in Amazon Linux AMI.

We do not currently support DMA to/from guest physical addresses outside of the E820 map for ENA networking or NVMe storage interfaces. This effectively means that ballooning needs to be disabled, or perhaps some changes would need to be made in the Xen swiotlb code to bounce data that resides in guest physical addresses that are outside of the E820 map.