On Fri, 2014-09-12 at 16:22 +0300, Jukka Rissanen wrote:
> Hi,
>
> IPv6 can be disabled in the kernel side if we switch from one
> service to another that use the same network interface (typically
> these are wifi services). Patch 2 fixes the issue which was
> reported yesterday by Arjuna S. So when we switch from one
> service to another, we disable IPv6 for the interface. This is
> in practice not needed and will lead to weird issues later.
>
> After fixing patch 2, Patrik and I noticed that IPv6 config is still
> missing from the service. This happens because we receive rtnl
> messages from kernel in certain order i.e., first "up link" to
> connected service and then "down link" to disconnecting service.
> Because the services are using same interface, the latter
> rtnl down message will effectively remove IPv6 config from the
> connecting service. The fix to this is to re-create the IP config
> back if this happens. This is fixed in patch 1.
Applied both patches, thanks!
Patrik
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