IZ82284: WLM CRASHES THE SYSTEM WHEN COMPUTATIONAL PAGE COUNT BECOMES < 0 APPLIES TO AIX 5300-09

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• WLM crashes the system when "computational pages" become
  negative in the
  class. Usually the stack trace would be like
  
  [0001AD00]abend_trap+000000 ()
  [000E3EC0]v_wlm_scb_setclass@AF93_31+000D40 (??, ??)
  [000E02C8]v_wlm_purge_scb+0001A8 (??, ??, ??)
  [000A0B00]begfst+000128 ()
  

Local fix

• System will reboot on crash
  

Problem summary

• A system crash with a stack that includes:
   0001AD00 abend_trap+000000 ()
   000E3EC0 v_wlm_scb_setclass@AF93_31+000D40 (??, ??)
   000E02C8 v_wlm_purge_scb+0001A8 (??, ??, ??)
   000A0B00 begfst+000128 ()
  

Problem conclusion

• Check to see if wlm is on, in which case don't do the fastpath.
  

Temporary fix

Comments

• 5300-09 - use AIX APAR IZ82284
  5300-10 - use AIX APAR IZ82559
  5300-11 - use AIX APAR IZ82171
  5300-12 - use AIX APAR IZ81618
  6100-02 - use AIX APAR IZ84084
  6100-03 - use AIX APAR IZ57779
  6100-04 - use AIX APAR IZ79677
  6100-05 - use AIX APAR IZ79836
  6100-06 - use AIX APAR IZ79194
  6100-06 - use AIX APAR IZ79288
  6100-06 - use AIX APAR IZ79194
  7100-00 - use AIX APAR IZ84188
  

APAR Information

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

  IZ57779

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

Fix information

• Fixed component name

  AIX 5.3

• Fixed component ID

  5765G0300

Applicable component levels

• R530 PSY U839463

     UP10/09/21 I 1000