IZ94053: KERNEL PANIC WHILE RESTARTING WPAR APPLIES TO AIX 6100-03

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• System will crash on restart with the following stack trace
  KDB(0)> where
  pvthread+00F900 STACK:
  ￭001DB4A4restore_queued_signals+000064 ()
  ￭001D8394process_rhandler+000314 (??, ??)
  ￭001DD004cr_proc_handler+000084 (??, ??)
  ￭001DDD04cr_handler+0001E4 (??, ??)
  ￭0060F55Cread_chkfile+00025C (??, ??)
  ￭000C66DCmcr_restart_init+0001BC (??, ??)
  ￭000C946Cmcr_exec_restart+0001EC (??, ??, ??)
  ￭001CF49Csmcr_exec_asyncinfo+00033C (??, ??, ??, ??, ??)
  ￭00003850ovlya_addr_sc_flih_main+000130 ()
  

Local fix

Problem summary

• System will crash on restart with the following stack trace
  KDB(0)> where
  pvthread+00F900 STACK:
   001DB4A4 restore_queued_signals+000064 ()
   001D8394 process_rhandler+000314 (??, ??)
   001DD004 cr_proc_handler+000084 (??, ??)
   001DDD04 cr_handler+0001E4 (??, ??)
   0060F55C read_chkfile+00025C (??, ??)
   000C66DC mcr_restart_init+0001BC (??, ??)
   000C946C mcr_exec_restart+0001EC (??, ??, ??)
   001CF49C smcr_exec_asyncinfo+00033C (??, ??, ??, ??, ??)
   00003850 ovlya_addr_sc_flih_main+000130 ()
  

Problem conclusion

• perform additional checks to ensure that pv_sig_queued value
  for global process is not decremented by process inside wpar
  

Temporary fix

Comments

• 6100-03 - use AIX APAR IZ94053
  6100-04 - use AIX APAR IZ93581
  6100-05 - use AIX APAR IZ93499
  6100-06 - use AIX APAR IZ92949
  6100-06 - use AIX APAR IZ87912
  6100-07 - use AIX APAR IZ88320
  7100-00 - use AIX APAR IZ87409
  

APAR Information

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

  IZ87409

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

Fix information

• Fixed component name

  AIX 610 STD EDI

• Fixed component ID

  5765G6200

Applicable component levels

• R610 PSY U840511

     UP11/03/22 I 1000

PTF to Fileset Mapping

• U840511 bos.mp64 6.1.3.9