linux-2.6.16 emulation: linux-sun-jdk1.6.0 program problem

[Jung-uk Kim]

On Friday 09 March 2007 05:23 am, Divacky Roman wrote:
> > >3. Running ftpserver (java application) displays a GUI window
> > > but terminates abruptly when the server is started (syscall
> > > epoll_create not implemented).
> >
> > epoll* is not implemented. So this is expected (and gives more
> > priority to epoll).
>
> I dont understand why it should use epoll only with 2.6. Epoll has
> been around for some 5 years now...

I guess Sun didn't think so.  Check out:

http://java.sun.com/javase/6/docs/technotes/guides/io/enhancements.html#6

'A new java.nio.channels.SelectorProvider implementation that is based 
on the Linux epoll event notification facility is included. The epoll 
facility is available in the Linux 2.6, and newer, kernels. The new 
epoll-based SelectorProvider  implementation is more scalable than 
the traditional poll-based SelectorProvider implementation when there 
are thousands of SelectableChannels registered with a Selector. The 
new SelectorProvider implementation will be used by default when the 
2.6 kernel is detected. The poll-based SelectorProvider will be used 
when a pre-2.6 kernel is detected.'

BTW, it was backported to 1.5 and available from Update 10:

http://java.sun.com/j2se/1.5.0/ReleaseNotes.html#150_10

So, you will notice the same problem from 1.5.0_10, which is already 
in ports tree for almost three months.

Jung-uk Kim