On Wed, Jun 09, 2021 at 03:51:20PM +0800, Xuan Zhuo wrote:

On Wed, 9 Jun 2021 08:24:20 +0200, Greg KH gregkh@linuxfoundation.org wrote:

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On Wed, Jun 09, 2021 at 02:08:17PM +0800, Xuan Zhuo wrote:

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On Wed, 9 Jun 2021 06:50:10 +0200, Greg KH gregkh@linuxfoundation.org wrote:

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On Wed, Jun 09, 2021 at 09:48:33AM +0800, Xuan Zhuo wrote:

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> With this patch and the latest net branch I no longer get crashes.

Did this ever get properly submitted to the networking tree to get into 5.13-final?

The patch has been submitted.

[PATCH net] virtio-net: fix for skb_over_panic inside big mode

Submitted where? Do you have a lore.kernel.org link somewhere?

https://lore.kernel.org/netdev/20210603170901.66504-1-xuanzhuo@linux.alibaba...

So this is commit 1a8024239dac ("virtio-net: fix for skb_over_panic inside big mode") in Linus's tree, right?

YES.

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But why is that referencing: Fixes: fb32856b16ad ("virtio-net: page_to_skb() use build_skb when there's sufficient tailroom")

This problem was indeed introduced in fb32856b16ad.

I confirmed that this commit fb32856b16ad was first entered in 5.13-rc1, and the previous 5.12 did not have this commit fb32856b16ad.

I'm not sure if it helped you.

Hm, then what resolves the reported problem that people were having with the 5.12.y kernel release? Is that a separate issue?

thanks,

greg k-h