On Wed, 2007-04-11 at 05:49, Michael S. Tsirkin wrote:
> > Quoting Hal Rosenstock <[EMAIL PROTECTED]>:
> > Subject: Re: multicast join failed for...
> > 
> > On Mon, 2007-04-09 at 18:47, Egor Tur wrote:
> > > Hi folk.
> > > 
> > > > > ib1: multicast join failed for 
> > > > > ff12:601b:ffff:0000:0000:0000:0000:0001, status -22 
> > > > > ib0: multicast join failed for 
> > > > > ff12:601b:ffff:0000:0000:0000:0000:0001, status -22 
> > > > >  
> > > > > And in osm.log: 
> > > > > Apr 09 21:33:50 658439 [42003960] -> __osm_mcmr_rcv_join_mgrp: ERR 
> > > > > 1B12: __validate_more_comp_fields, 
> > > > > __validate_port_caps, or JoinState = 0 failed from port 
> > > > > 0x001708ffffd15099 (HP Lion Cub DDR 128MB), 
> > > > > sending IB_SA_MAD_STATUS_REQ_INVALID 
> > > > >  
> > > > OpenSM ERR 1B12 means that the rate or MTU of the port was incompatible
> > > > with the MC group. You could turn on -V with OpenSM and see more log
> > > > messages as to what is going on wrong from the SM's perspective.
> > > 
> > > Ok. This from osm.log with -V :
> > >  
> > > Apr 10 00:56:06 390007 [44007960] -> __osm_sa_mad_ctrl_process: [         
> > >                                                      
> > > Apr 10 00:56:06 390016 [44007960] -> __osm_sa_mad_ctrl_process: Posting 
> > > Dispatcher message OSM_MSG_MAD_MCMEMBER_RECORD         
> > > Apr 10 00:56:06 390027 [44007960] -> __osm_sa_mad_ctrl_process: ]         
> > >                                                      
> > > Apr 10 00:56:06 390033 [44007960] -> __osm_sa_mad_ctrl_rcv_callback: ]    
> > >                                                      
> > > Apr 10 00:56:06 390046 [41001960] -> osm_mcmr_rcv_process: [              
> > >                                                      
> > > Apr 10 00:56:06 390054 [41001960] -> __osm_mcmr_rcv_join_mgrp: [          
> > >                                                      
> > > Apr 10 00:56:06 390060 [41001960] -> __osm_mcmr_rcv_join_mgrp: Dump of 
> > > incoming record                                         
> > > Apr 10 00:56:06 390065 [41001960] -> MCMember Record dump:                
> > >                                                      
> > >                                 
> > > MGID....................0xff12601bffff0000 : 0x0000000000000001           
> > >                      
> > >                                 
> > > PortGid.................0xfe80000000000000 : 0x001708ffffd1509a           
> > >                      
> > >                                 qkey....................0xB1B             
> > >                                                      
> > >                                 mlid....................0x0               
> > >                                                      
> > >                                 mtu.....................0x84              
> > >                                                      
> > >                                 TClass..................0x0               
> > >                                                      
> > >                                 pkey....................0xFFFF            
> > >                                                      
> > >                                 rate....................0x83              
> > >                                                      
> > >                                 pkt_life................0x0               
> > >                                                      
> > >                                 SLFlowLabelHopLimit.....0x0               
> > >                                                      
> > >                                 ScopeState..............0x1               
> > >                                                      
> > >                                 ProxyJoin...............0x0               
> > >                                                      
> > > Apr 10 00:56:06 390084 [41001960] -> __validate_more_comp_fields: 
> > > Requested RATE 6 is not equal to 3
> > 
> > Rate 6 is 20 Gb/sec whereas 3 is 10 Gb/sec. So the port is 4x DDR (rate
> > 6) and the group is 4x SDR. The request is for equal to the rate so it
> > fails.
> 
> 
> BTW, the only reason I know for IPoIB to request a specific rate
> is if the broadcast multicast group has that rate. Roland, is that right?
> 
> So, how come the broadcast multicast group has rate DDR, but a specific
> group has lower rate?

Why does this IPoIB client think that the broadcast group is 4x DDR (20
Gbps) when the SM thinks it is 4x SDR (10 Gbps) ? How could that happen
? Is this a porting issue somehow ? 

-- Hal

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