Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <CA+G9fYt7-R-_fVDeiwj=sVvBQ-456Pm1oFFtM5Hm_94nN-tA+w@mail.gmail.com>
 <CAM_iQpXQdgwFwUONX+za5vJbcXP9krwz_--pG+z_Etf_v8K2mw@mail.gmail.com>
In-Reply-To: <CAM_iQpXQdgwFwUONX+za5vJbcXP9krwz_--pG+z_Etf_v8K2mw@mail.gmail.com>
From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Thu, 16 Apr 2020 23:15:22 +0530
Message-ID: <CA+G9fYtCV55uuArU4OLCTaaBPk7BDeZyOBUHoScN4NsbQeuPhA@mail.gmail.com>
Subject: Re: x86_64: 5.6.0: locking/lockdep.c:1155 lockdep_register_key
To:     Cong Wang <xiyou.wangcong@gmail.com>
Cc:     open list <linux-kernel@vger.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@vger.kernel.org>, Borislav Petkov <bp@suse.de>,
        Netdev <netdev@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Brian Gerst <brgerst@gmail.com>, lkft-triage@lists.linaro.org,
        Alexei Starovoitov <ast@kernel.org>,
        Andrii Nakryiko <andriin@fb.com>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Sat, 11 Apr 2020 at 02:20, Cong Wang <xiyou.wangcong@gmail.com> wrote:
>
> On Tue, Apr 7, 2020 at 2:58 AM Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
> >
> > On Linux mainline kernel 5.6.0 running kselftest on i386 kernel running on
> > x86_64 devices we have noticed this kernel warning.
>
> This is odd, the warning complains a lockdep key is static, but
> all of the 3 lockdep keys in netdev_register_lockdep_key() are
> dynamic. I don't see how this warning could happen.

I request to provide a debug patch which prints a detailed log.
Happy to test it again with your debug patch and will provide more information.


- Naresh