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Hans Schillstrom <hans@xxxxxxxxxxxxxxx> writes:
> Hello Julian
>
> I'm trying to fix the cleanup process when a namespace get "killed",
> which is a new feature for ipvs. However an old problem appears again
>
> When there has been traffic trough ipvs where the destination is unreachable
> the usage count on loopback dev increases one for every packet....
> I guess thats because of this rule :
>
> # ip route list table all
> ...
> unreachable default dev lo table 0 proto kernel metric 4294967295 error
> -101 hoplimit 25
> ...
>
> I made a test just forwarding packets through the same container (ipvs loaded)
> to an unreachable destination and that test had a balanced count i.e. it was
> possible to reboot the container.
>
> Do you have an idea why this happens in the ipvs case ?
Hans. I do know that most outstanding references when you clean up a
container get moved to the loopback device. So it may not originally
be the loopback device itself where the reference counting is wrong.
Eric
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