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

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Message-ID: <CAPpAL=z2YXWDV7HVeSzZbTAUNrb1h4R3s1kmWSyjXp_r7iar8g@mail.gmail.com>
Date: Mon, 15 Sep 2025 22:45:34 +0800
From: Lei Yang <leiyang@...hat.com>
To: Breno Leitao <leitao@...ian.org>
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

On Mon, Sep 15, 2025 at 6:58 PM Breno Leitao <leitao@...ian.org> wrote:
>
> On Mon, Sep 15, 2025 at 03:55:53AM -0700, Breno Leitao wrote:
> > On Mon, Sep 15, 2025 at 06:50:15PM +0800, Lei Yang wrote:
> > > 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.

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

Yes, I test it with a physical machine. I didn't used VM， just install
rpm which compiled based on this series patches, then hit kernel pahic
at server rebooting.
>
> Also, I've just sent v3 earlier today, let me know if you have chance to
> test it as well, given it fixes the issue raised by Jakub in [1]
>
> Link: https://lore.kernel.org/all/20250914125949.17ea0ade@kernel.org/ [1]

I already submitted a job to test v3, the test will be completed
tomorrow and I will update the results promptly.

Best Regards
Lei
>