Re: Multicast joins failing on 1.5-rc1?

Jason Gunthorpe
2009-10-20T18:34:30Z

On Tue, Oct 20, 2009 at 01:16:07PM -0500, stuarts wrote:
> When I look through for the code, I found that error code associated
> with an invalid set of component masks:
> Oct 20 12:40:05 824130 [44240940] 0x01 -> mcmr_rcv_join_mgrp: ERR 1B11:
> method = SubnAdmSet, scope_state = 0x1, component mask =
> 0x0000000000010083, expected comp mask = 0x00000000000130c7, MGID:
> ff12:601b:ffff::16 from port 0x0002c90300032431 (x3 HCA-1)

I thought this was normal, expected behavior?

The IPoIB Send only join process doesn't create multicast groups. If
there is a listening group then it joins it, otherwise nothing.

Basically, you need listeners before you can send.

Jason