netdev - Re: [PATCHv3 net 0/2] bonding: fix incorrect mac address setting

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <Z6r8y1U4C_s1-3jV@fedora>
Date: Tue, 11 Feb 2025 07:31:23 +0000
From: Hangbin Liu <liuhangbin@...il.com>
To: Jay Vosburgh <jv@...sburgh.net>
Cc: netdev@...r.kernel.org, Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	Simon Horman <horms@...nel.org>, Jianbo Liu <jianbol@...dia.com>,
	Boris Pismenny <borisp@...dia.com>,
	Tariq Toukan <tariqt@...dia.com>, Shuah Khan <shuah@...nel.org>,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv3 net 0/2] bonding: fix incorrect mac address setting

Hi Jay,
On Sat, Feb 08, 2025 at 06:34:21AM +0000, Hangbin Liu wrote:
> Please hold on this patch. Our QE reported that with bare NIC, the
> backup NIC can't receive the NS messages even after joining the multicast
> MAC group. But after remove the backup NIC from bond, the NIC interface
> could receive the NS message.
> 
> This is weird, it looks the backup NIC dropped the NS message somewhere,
> even using tcpdump (the NIC will be in promisc mode) I can't capture the
> NS message on backup slave.
> 
> I need to debug more.

After debug, I find it's a driver issue. The issue exists with ice dirver NIC.
I tried with a mlx5 NIC and the patch works good for me.

So I think you can start review this patch when you have time. I will debug
the ice driver later.

Thanks
Hangbin