I am wondering about the right way to go about fixing the problem with removing interfaces & deleting multicast routes. There seems to be a race, and when the problem hits, it leads to an assert in ospf.
A quick hack, and probably something that I will try soon just to work around this bug would be to probe for the requested interface and if found in the OS, do the route deletion anyway. A better fix would probably keep the interface around in the deleted state until we were somehow sure that all of the modules are done with it. We should probably also block the xorpsh commit completion until the routes & multicast bindings have been properly deleted. Otherwise, it will not be possible to safely know when we can add this interface to a different virtual router. I'm hoping one of the folks more familiar with the architecture can suggest a way to do this properly. Here's a snippet of logs... [ 2007/10/12 20:18:22 TRACE xorp_ospfv2 OSPF ] Event(InterfaceDown) Interface(rddVR44/rddVR44) State(Backup) [ 2007/10/12 20:18:22 TRACE xorp_ospfv2 OSPF ] Event(KillNbr) Interface(rddVR44/rddVR44) Neighbour(10.4.0.2) State(Full) [ 2007/10/12 20:18:22 INFO xorp_rtrmgr:28667 RTRMGR task.cc:2228 run_task ] No more tasks to run [ 2007/10/12 20:18:22 WARNING xorp_fea XrlFeaTarget ] Handling method for raw_packet4/0.1/leave_multicast_group failed: XrlCmdError 102 Command failed Leaving multicast group 224.0.0.6 failed: interface rddVR44 vif rddVR44 not found [ 2007/10/12 20:18:22 WARNING xorp_fea XrlFeaTarget ] Handling method for raw_packet4/0.1/send failed: XrlCmdError 102 Command failed No interface rddVR44 [ 2007/10/12 20:18:22 WARNING xorp_fea XrlFeaTarget ] Handling method for raw_packet4/0.1/leave_multicast_group failed: XrlCmdError 102 Command failed Leaving multicast group 224.0.0.5 failed: interface rddVR44 vif rddVR44 not found [ 2007/10/12 20:18:22 ERROR xorp_ospfv2:28891 OSPF xrl_io.cc:721 leave_multicast_group_cb ] Cannot leave a multicast group on interface rddVR44 vif rddVR44: 102 Command failed Leaving multicast group 224.0.0.6 failed: interface rddVR44 vif rddVR44 not found [ 2007/10/12 20:18:22 ERROR xorp_ospfv2:28891 OSPF xrl_io.cc:188 send_cb ] Cannot send a packet on interface rddVR44 vif rddVR44: 102 Command failed No interface rddVR44 [ 2007/10/12 20:18:22 ERROR xorp_ospfv2:28891 OSPF xrl_io.cc:721 leave_multicast_group_cb ] Cannot leave a multicast group on interface rddVR44 vif rddVR44: 102 Command failed Leaving multicast group 224.0.0.5 failed: interface rddVR44 vif rddVR44 not found [ 2007/10/12 20:18:22 TRACE xorp_ospfv2 OSPF ] Event(LinkStateAcknowledgementReceived-pseudo-event) Interface(rddVR1/rddVR1) Neighbour(10.0.0.1) State(Full) -- Ben Greear <[EMAIL PROTECTED]> Candela Technologies Inc http://www.candelatech.com _______________________________________________ Xorp-hackers mailing list [email protected] http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/xorp-hackers
