IJ22408: CLSTRMGR CORE DUMPS AFTER IFCONFIG DETACH, IFCONFIG UP COMMANDS

PowerHA-7.2.4 SP1

APAR status

• Closed as program error.

Error description

• Clstrmgr crashes if you run ifconfig enX detach; ifconfig
  enX up commands to test the network failover
  functionality.
  
  Stack trace:
  
  (dbx) where
  checkNetworkStability(InfoPbMsg*,const char*)(Imsg =
  0x2019fea0, netname = "net_ether_02"), line 266 in
  "pgscb_sub.C"
  ProcessRmInfoBcast(InfoPbMsg*)(InfoPbPtr = 0x2019fea0),
  line 1260 in "pgscb_sub.C"
  unnamed block in rm_nPhaseCb(const
  ha_gs_n_phase_notification_t*)(nPtr = 0x2ff1e800), line
  1491 in "pgscb.C"
  rm_nPhaseCb(const ha_gs_n_phase_notification_t*)(nPtr =
  0x2ff1e800), line 1491 in "pgscb.C"
  ha_gs_dispatch_internal_without_msg_queue(dispatch_flag =
  HA_GS_NON_BLOCKING), line 3376 in "ha_gs_dispatch.c"
  ha_gs_dispatch(dispatch_flag = HA_GS_NON_BLOCKING), line
  4141 in "ha_gs_dispatch.c"
  DoMainLoop()(), line 2200 in "main.C"
  main(argc = 1, argv = 0x2ff22d40), line 4363 in "main.C"
  

Local fix

Problem summary

• Clstrmgr crashes if you run
  ifconfig enX detach; ifconfig enX up
  commands to test the network failover
  functionality. Same stack may appear when
  there is a cable break in the network connectivity.
  
  Stack trace:
  
  (dbx) where
  checkNetworkStability(InfoPbMsg*,const char*)
  (Imsg =0x2019fea0, netname = "net_ether_02"), line 266 in
  "pgscb_sub.C"
  ProcessRmInfoBcast(InfoPbMsg*)(InfoPbPtr = 0x2019fea0), line
  1260 in "pgscb_sub.C"
  unnamed block in rm_nPhaseCb(const
  ha_gs_n_phase_notification_t*)(nPtr = 0x2ff1e800), line 1491 in
  "pgscb.C"
  rm_nPhaseCb(const ha_gs_n_phase_notification_t*)(nPtr
  =0x2ff1e800), line 1491 in "pgscb.C"
  ha_gs_dispatch_internal_without_msg_queue(dispatch_flag
  =HA_GS_NON_BLOCKING), line 3376 in "ha_gs_dispatch.c"
  ha_gs_dispatch(dispatch_flag = HA_GS_NON_BLOCKING), line 4141 in
  "ha_gs_dispatch.c"
  DoMainLoop()(), line 2200 in "main.C"
  main(argc = 1, argv = 0x2ff22d40), line 4363 in "main.C"
  
  This problem is seen only for networks which does not have
  any service ip or persistent ip configured.
  

Problem conclusion

• Modified code to properly update the network index number when a
   detached interface comes up.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IJ21442

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  POWERHA SYSMIR

• Fixed component ID

  5765H3900

Applicable component levels