Another possibility is a deadlock, I know I've had a few in the cdp module, the solution of which I'm currently testing. Maybe you can also get a gdb trace once the issue happens. 

On Wed, 26 Aug 2020, 3:36 PM ThomasSevestre, <notifications@github.com> wrote:

The issue occured a few times before I enabled kamctl trap.
It has not occured since... I'm still waiting
Fell free to close if you want, I can reopen when I have more information


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