linux-kernel - Re: [PATCH net-next v2 0/7] net: ethtool: add dedicated GRXRINGS driver callbacks

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Message-ID: <glf2hbcffix64oogovguhq2dh7icym7hq4qkxw46h74myq6mcf@d7szmoq3gx7q>
Date: Mon, 15 Sep 2025 03:55:53 -0700
From: Breno Leitao <leitao@...ian.org>
To: Lei Yang <leiyang@...hat.com>
Cc: Andrew Lunn <andrew@...n.ch>, "David S. Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, kuba@...nel.org, 
	Simon Horman <horms@...nel.org>, "Michael S. Tsirkin" <mst@...hat.com>, 
	Jason Wang <jasowang@...hat.com>, Xuan Zhuo <xuanzhuo@...ux.alibaba.com>, 
	Eugenio Pérez <eperezma@...hat.com>, Andrew Lunn <andrew+netdev@...n.ch>, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, virtualization@...ts.linux.dev, kernel-team@...a.com
Subject: Re: [PATCH net-next v2 0/7] net: ethtool: add dedicated GRXRINGS
 driver callbacks

Hello Lei,

On Mon, Sep 15, 2025 at 06:50:15PM +0800, Lei Yang wrote:
> Hi Breno
> 
> This series of patches introduced a kernel panic bug. The tests are
> based on the linux-next commit [1]. I tried it a few times and found
> that if I didn't apply the current patch, the issue wouldn't be
> triggered. After applying the current patch, the probability of
> triggering the issue was 3/3.
> 
> Reproduced steps:
> 1. git clone https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> 2. applied this series of patches
> 3. compile and install
> 4. reboot server(A kernel panic occurs at this step)

Thanks for the report. Let me try to reproduce it on my side.

Is this a physical machine, or, are you using a VM with the virtio change?

Thanks,
--breno