netdev - Re: [BUG] kernel warning from br_nf_local

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Message-ID: <ZgIkm3KNK78qpptx@calendula>
Date: Tue, 26 Mar 2024 02:28:48 +0100
From: Pablo Neira Ayuso <pablo@...filter.org>
To: Jianbo Liu <jianbol@...dia.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"fw@...len.de" <fw@...len.de>,
	"netfilter-devel@...r.kernel.org" <netfilter-devel@...r.kernel.org>,
	"davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [BUG] kernel warning from br_nf_local_in+0x157/0x180

On Sat, Mar 23, 2024 at 10:37:16AM +0000, Jianbo Liu wrote:
> On Fri, 2024-03-22 at 13:27 +0100, Pablo Neira Ayuso wrote:
> > Hi Jianbo,
> > 
> > On Mon, Mar 18, 2024 at 09:41:46AM +0000, Jianbo Liu wrote:
> > > Hi Florian and Pablo,
> > > 
> > > We hit the following warning from br_nf_local_in+0x157/0x180.
> > 
> > Can you give a try to this patch?
> > 
> 
> Sorry, it doesn't fix.
> It looks fine when running the test manually. But the warning still
> appeared in our regression tests.

You mean different test triggers now the warning splat?

Not sure yet if this is the bug that is triggering the issue in your
testbed yet, but I find it odd that packets hitting the local_in hook
because promisc flag is set on can confirm conntrack entries.

Would you please give a try to this patch? Thanks!

View attachment "x.patch" of type "text/x-diff" (2878 bytes)