Re: WARNING in hsr_forward_skb

[Oliver Hartkopp]

Hi Dimitry,

On 3/12/19 5:21 PM, Dmitry Vyukov wrote:

> > You can see how bisection progressed and got to 4.12.0-rc2+ in the
> > bisection log.
> >
> > The commit that it come up with looks unrelated.
> > I've started collecting such cases at:
> > https://github.com/google/syzkaller/issues/1051
> > and added for this case:
> >
> > =====
> > Bisected to wrong commit.
> > Root cause: broken kernel boots, bugs that happen on all tests.
> > Boot is broken for several releases with "WARNING in hsr_forward_skb",
> > this switches to a bug that happens during every test "INFO: trying to
> > register non-static key in can_notifier", which then leads to a
> > completely random commit.
> > =====
>
> Broken boots did not happen here. "WARNING in hsr_forward_skb" is the
> crash that we pursued, so it started correctly. But then diverged to
> an unrelated "INFO: trying to register non-static key in
> can_notifier".

Thanks for the clarification! I really appreciate your effort with syzbot!

Best,
Oliver