Re: [PATCH 0/5] virtio_net: enable premapped mode by default

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On Mon, Oct 14, 2024 at 11:12:29AM +0800, Xuan Zhuo wrote:
> In the last linux version, we disabled this feature to fix the
> regress[1].
> 
> The patch set is try to fix the problem and re-enable it.
> 
> More info: http://lore.kernel.org/all/20240820071913.68004-1-xuanzhuo@xxxxxxxxxxxxxxxxx
> 
> Thanks.
> 
> [1]: http://lore.kernel.org/all/8b20cc28-45a9-4643-8e87-ba164a540c0a@xxxxxxxxxx

Darren, you previously reported crashes with a patch very similar to 1/5.
Can you please test this patchset and report whether they
are still observed?
If yes, any data on how to reproduce would be very benefitial for Xuan
Zhuo.


> Xuan Zhuo (5):
>   virtio-net: fix overflow inside virtnet_rq_alloc
>   virtio_net: introduce vi->mode
>   virtio_net: big mode skip the unmap check
>   virtio_net: enable premapped mode for merge and small by default
>   virtio_net: rx remove premapped failover code
> 
>  drivers/net/virtio_net.c | 168 ++++++++++++++++++++++++---------------
>  1 file changed, 105 insertions(+), 63 deletions(-)
> 
> --
> 2.32.0.3.g01195cf9f





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