[Openais] mreg patch for multicast

Zou, Yixiong yixiong.zou at intel.com
Wed Jun 23 11:52:34 PDT 2004


Cool.  This patch worked for me.  Thanks! 

------------------------------------------------------------------------

Yixiong Zou (yixiong.zou at intel.com)

(626) 443-0100

All views expressed in this email are those of the individual sender. 



> -----Original Message-----
> From: Steven Dake [mailto:sdake at mvista.com] 
> Sent: Wednesday, June 23, 2004 11:42 AM
> To: Zou, Yixiong
> Cc: openais at lists.osdl.org
> Subject: Re: [Openais] mreg patch for multicast
> 
> 
> Yixiong,
> 
> I had a look at the code and there was an extra htonl.  Try this patch
> instead if you can.
> 
> Thanks
> -steve
> 
> On Wed, 2004-06-23 at 11:04, Zou, Yixiong wrote:
> > Hi Steve,
> > 
> > I patched the gim.c but it still fails during the startup: 
> > 
> > [yzou at matrix exec]$ sudo ./aisexec
> > join multicast group failed: No such device
> > L(4): AIS Executive Service: Copyright (C) 2002-2004 
> MontaVista Software, Inc.
> > L(4): AIS Executive Service: started and ready to receive 
> connections.
> > 
> > Somehow the setsockopt() is still giving the same error.  And here's
> > the output of my `uname -a` command: 
> > 
> > Linux matrix 2.4.22-1.2188.nptlsmp #1 SMP Wed Apr 21 
> 20:12:56 EDT 2004 i686 i686 i386 GNU/Linux
> > 
> > It's a Fedora Core 1 box.  I can run aisexec fine if I switch to a 
> > 2.6.6 kernel though. 
> > 
> > 
> --------------------------------------------------------------
> ----------
> > 
> > Yixiong Zou (yixiong.zou at intel.com)
> > 
> > (626) 443-0100
> > 
> > All views expressed in this email are those of the 
> individual sender. 
> > 
> > 
> > 
> > > -----Original Message-----
> > > From: Steven Dake [mailto:sdake at mvista.com] 
> > > Sent: Tuesday, June 22, 2004 5:56 PM
> > > To: Zou, Yixiong
> > > Cc: openais at lists.osdl.org
> > > Subject: RE: [Openais] Your Contributions
> > > 
> > > 
> > > > 
> > > > - The aisexec can be compiled on a Fedora Core 1 system, 
> > > but running it
> > > > will fail.  I think the multicast isn't enabled in the 
> > > default Fedora Core 1
> > > > kernel.  It failed during the setsockopt() call with the 
> > > "IP_ADD_MEMBERSHIP" 
> > > > flag.  So it will be better if this fact is documented 
> somewhere. 
> > > > 
> > > 
> > > I suspect this may be an incomptibility with the current 
> > > method used to
> > > join a multicast group.  It seems to work on some Linux 
> > > versions and not
> > > others.  I've rewritten some of the gmi_init code that selects the
> > > interface addresses (and uses mreq, instead of mreqn) in a pending
> > > patch.  I've attached a patch that works on all my targets 
> > > and Darwin. 
> > > Can you try it out?
> > > 
> 




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