page fault while in kernel mode - after upgrade from 12.2 to 13.0

[Michael Schmiedgen]

On 06.05.2021 18:02, Mark Johnston wrote:
> On Thu, May 06, 2021 at 06:00:05PM +0200, Michael Schmiedgen wrote:
>> BTW, we got 2 other systems, also with userland NAT but different workload.
>> After an uncertain amount of time, mostly weeks, the natd starts to spin 100%
>> CPU on these systems. Quick noobish workaround was restarting natd every night.
>> I saw your recent commits that applied some more safety in that area, do you
>> plan to MFC these as well? I can imagine that could help with my NAT problems.
>
> I am skeptical that anything I did recently would fix this.  Did you try
> attaching a debugger to natd to see where it's getting stuck?  Is it
> also a regression from upgrading to 13.0?

Unfortunately this was difficult to trigger, and when it did, networking stopped
working and these are remote machines. This was/is on 12, I plan to upgrade these
in the near future and keep an eye on it.