Hi Pavel Fedin, Increasing descriptor ring size will lead to more memory allocation. And what you are seeing is a memory alloc failure and doesn't seem to be due to this driver change. I mean it looks like the behavior will be same for other drivers as well.
Probably you might have to set "coherent_pool" size in bootargs to a higher value. Can you please check. Thanks, Sunil. On Tue, Dec 1, 2015 at 9:03 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > On Tue, 2015-12-01 at 17:40 +0300, Pavel Fedin wrote: >> Hello! >> >> This one breaks networking on my machine: >> --- cut --- >> swiotlb: coherent allocation failed for device 0002:01:08.4 size=4198400 >> CPU: 2 PID: 3655 Comm: NetworkManager Tainted: G W O 4.2.6+ #201 >> Hardware name: Cavium ThunderX CN88XX > > Are you sure 4.2.6 kernel is suitable for backporting this patch aimed > for linux-4.5 ? > > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
