IJ48144: IN PS OUTPUT COMMANDS ARGUMENTS MISSING IF ONE ARGUMENT IS NULL APPLIES TO AIX 7300-01

APAR status

• Closed as program error.

Error description

• running a ps command on processes that have a null
  argument
  will stop listing arguments after that so might be
  missing
  the next ones.
  Example using /tmp/test.ksh :
  #! /bin/ksh
  sleep 100
  Run with :
  # /tmp/test.ksh  1 2 "" A B &
  [1]     7799082
  (0)[tcp100] /tmp
  # ps -o args -p 7799082
  COMMAND
  /bin/ksh /tmp/test.ksh 1 2
  
  Arguments A & B are missing
  

Local fix

Problem summary

• Running a ps command on processes that have a null
  argument will stop listing arguments after that so might be
  missing
  the next ones.
  Example using /tmp/test.ksh :
  #! /bin/ksh
  sleep 100
  Run with :
  # /tmp/test.ksh  1 2 "" A B &
   1      7799082
  (0) tcp100  /tmp
  # ps -o args -p 7799082
  COMMAND
  /bin/ksh /tmp/test.ksh 1 2
  
  Arguments A & B are missing
  

Problem conclusion

• Special processing done for the reading the arguments
  /environment variable of the processes that have a null
  argument/environment variable
  

Temporary fix

Comments

APAR Information

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

  IJ40627

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

Fix information

• Fixed component name

  AIX V7.3

• Fixed component ID

  5765CD300

Applicable component levels