On Tue, 3 Oct 2017, Thomas Gleixner wrote: > On Tue, 3 Oct 2017, Michael Ellerman wrote: > > Hmm, I tried that patch, it makes the warning go away. But then I > > triggered a deliberate hard lockup and got nothing. > > > > Then I went back to the existing code (in linux-next), and I still get > > no warning from a deliberate hard lockup. > > > > So seems there may be some more gremlins. Will test more in the morning. > > Hrm. That's weird. I'll have a look and send a proper patch series on top > of next.
The major difference is that the reworked code utilizes watchdog_nmi_reconfigure() for both init and the sysctl updates, but I can't for my life figure out why that doesn't work. Thanks, tglx