[syzbot] upstream boot error: WARNING in __context_tracking_enter

[Marco Elver]

On Tue, Apr 13, 2021 at 07:14AM +0200, Dmitry Vyukov wrote:
[...]
> Hi Russell,
> 
> Does Mark's comment make sense to you?
> lockdep_assert_preemption_disabled() also checks "&&
> this_cpu_read(hardirqs_enabled)", so is it that we also need hardirq's
> disabled around user_enter/exit?
> This issue currently prevents ARM boot on syzbot.

We've disabled lockdep on syzbot's arm32 instance now as that instance had
been dead since March:
https://github.com/google/syzkaller/commit/be386ae8800e02b4a9a3239c9565e9d40e253c84

It's running again. There may be an influx of new bugs.

Thanks,
-- Marco