Re: x86_64: 5.6.0: locking/lockdep.c:1155 lockdep_register_key

From: Naresh Kamboju
Date: Thu Apr 16 2020 - 13:45:43 EST


On Sat, 11 Apr 2020 at 02:20, Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote:
>
> On Tue, Apr 7, 2020 at 2:58 AM Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> 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