netdev - Re: Report mlx5

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Message-ID: <055cc6cbe8521fdfd753612d6d6d76857550e731.camel@nvidia.com>
Date: Wed, 7 Feb 2024 10:33:29 +0000
From: Cosmin Ratiu <cratiu@...dia.com>
To: Roi Dayan <roid@...dia.com>, Paul Blakey <paulb@...dia.com>,
	"taoliu828@....com" <taoliu828@....com>, Saeed Mahameed <saeedm@...dia.com>,
	Vlad Buslov <vladbu@...dia.com>, Dima Chumak <dchumak@...dia.com>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: Report mlx5_core crash

On Tue, 2024-02-06 at 15:01 +0800, Tao Liu wrote:
> On 01/31  , Tao Liu wrote:
> > Hi Mellanox team,
> > 
> >    We hit a crash in mlx5_core which is similar with commit
> >    de31854ece17 ("net/mlx5e: Fix nullptr on deleting mirroring rule").
> >    But they are different cases, our case is:
> >    in_port(...),eth(...) \
> > actions:set(tunnel(...)),vxlan_sys_4789,set(tunnel(...)),vxlan_sys_4789,...
> > 
> >      BUG: kernel NULL pointer dereference, address: 0000000000000270
> >      RIP: 0010:del_sw_hw_rule+0x29/0x190 [mlx5_core]

Hello,

I'll help you find and fix the problem.
Your core dump analysis was very useful, but not sufficient to find the
cause of the crash. Would you mind sharing a set of reproduction steps
so we can debug this further?

Thank you,
Cosmin.