Code Review 6947677: InetAddress.isReachable() throws "java.net.SocketException:Invalid argument" on Linux if run as root

[Alan Bateman]

Chris Hegarty wrote:
> Hi Michael,
>
> On some Linuxes, when bound to the loopback interface, sendto will 
> fail and errno will be set to EINVAL. When that happens, don't throw 
> an exception, just return false. We already do this in the case where 
> we cannot create raw sockets, i.e. when not running as root.
>
> http://cr.openjdk.java.net/~chegar/6947677/webrev.00/webrev/
>
> Thanks,
> -Chris.
Chris - is this a kernel bug where it should be returning EHOSTUNREACH 
or some other error instead? It is specific to the loopback interface so 
do you have the same issue when bound to a real interface?

-Alan