On 8/9/2012 4:55 PM, Chris Hegarty wrote:
Shirish,
I am not familiar with VIPA interfaces, but I don't see any
documentation that describes allowable values for flags that could
cause the integer representing it to contain a negative value.
I'm not opposed to the source changes, I just don't see that they are
required. Can you please help explain?
Thanks,
-Chris.
On 09/08/12 11:16, Shirish Kuncolienkar wrote:
Hi,
The return value from the getFlags() method in NetworkInterface.c is
interpreted in 2 ways.
- If the value is negative an Exception is thrown
- Else the return value is considered as the flag mask obtained via the
ioctl call.
In rare cases is it possible the value in the ifr_flags could be
negative. One such case is VIPA interfaces. any calls like isUp() on
such network interfaces would end up in a Socket Exception.
I have patch for this. Anyone would like to take a look ?
http://cr.openjdk.java.net/~luchsh/webrev20120809/
-Shirish
Chris,
I agree there is no general documentation available, AIX defines vipa
interface flag as "0x80000000"
Here is a similar bug report related to FreeBSD
http://hg.openjdk.java.net/macosx-port/macosx-port/jdk/rev/c6334146005c.
A different fix was proposed here.
Hope this helps.
Thanks
-Shirish
