IV02132: GETROLES FAILS TO CALL XMDETACH APPLIES TO AIX 6100-05

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In some situations, getroles will make a call to
  XMATTACH, but will exit before making a call to
  XMDETACH. This could result in a system crash.
  
  Sample of what this might look like in the LMT:
  
  101  8   31392296 31720047  F1000A00193D4440 LR =
  10001228
  5CA  8   31392296 31720047    VMSVC XMATTACH:
  caller=7A5998
                        pid=FFFFFFFFFFFFFFFF
                        vaddr=FFFFF0000FF48000 count=820C8
                        segflag=0001
  104  8   31392296 31720047  return from F1000A00193D4440.
  error ESRCH
  
  
  So we see an XMATTACH call but no XMDETACH call.
  
  Here is a sample of crash information:
  
  CRASH INFORMATION:
  CPU 8 CSA F00000002FF47600 at time of crash, error code
   for LEDs:
  70000000
  pvthread+11E400 STACK:
  [0001BF00]abend_trap+000000 ()
  [003DC588]detach_all_temp+0000E8 ()
  [000038B0].sys_call_ret+00005C ()
  [kdb_get_virtual_memory] no real storage @
  FFFFFFFF3FFFE60
  [kdb_read_mem] no real storage @ FFFFFFFFFFF6270
  (8)> dr r3
  r3  : EEEE00009650801F    <-EINVAL_TEMP_ATTACH_REMAINING
  

Local fix

Problem summary

• System crash ,If getroles is called for the process whose
  cred is NULL
  

Problem conclusion

• Fixed the problem for NULL process cred scenario so that
  system will not crash in getroles
  

Temporary fix

Comments

• 6100-05 - use AIX APAR IV02132
  

APAR Information

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

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

  IV03176 IV03250 IV04898 IV05695 IV06162 IV17731

Fix information

• Fixed component name

  AIX 610 STD EDI

• Fixed component ID

  5765G6200

Applicable component levels

• R610 PSY U843237

     UP11/10/12 I 1000

PTF to Fileset Mapping

• U843237 bos.mp64 6.1.5.8