> Well, using swiotlb=force (which turns on the bounce buffers) I do not get > oops any more. On the other hand, I got some oopses in memcpy of the bounce > buffers which I try to solve with Xen developpers.
So it seems there is a problem with the normal Xen PCI mapping API then. It would be better to avoid bounce buffers for this if possible, because as I said that would double the memory consumption and potentially exhaust your swiotlb space (because this hardware context memory is not used for "in-flight" IOs, it is essentially given to the hardware permanently). Also, could you please CC me on any threads with the Xen developers? It's kind of annoying to only get half of the story about what's going on with debugging this. Thanks, Roland _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
