IJ44829: GATEWAY NODE ASSERTION IN PCACHEHANDLER::SETUPCTL

APAR status

• Closed as program error.

Error description

• The special .afmctl file at home/secondary loses its Control
  attribute and is treated as a normal file. This returns a buffer
  of expected 2048 size - overflowing the 1100 buffer given for
  this at cache - expecting a CTL file treatment at the
  home/secondary
  

Local fix

• Manually disable and re-enable mmafmconfig at the
  home/secondary and then stop/start the cache fileset
  to pickup the new changes from home.
  

Problem summary

• The special .afmctl file at home/secondary loses its Control
  attribute and is treated as a normal file. This returns a buffer
  of expected 2048 size - overflowing the 1100 buffer given for
  this at cache - expecting a CTL file treatment at the
  home/secondary
  

Problem conclusion

• This problem is fixed in 5.1.2.9
  To see all Spectrum Scale APARs and their respective
  Fix solutions refer to page:
  https://public.dhe.ibm.com/storage/spectrumscale/spectrum_scale_
  apars.html
  
  Benefits of the solution:
  Avoid the buffer overflow exception and introduce a way to
  detect the Control file has gone bad at the home/secondary.
  
  Work around:
  Manually disable and re-enable mmafmconfig at the
  home/secondary and then stop/start the cache fileset
  to pickup the new changes from home.
  
  Problem trigger:
  Invalid .afmctl control file at home.
  
  Symptom:
  Crash
  
  Platforms affected:
  ALL Linux OS environments (AFM Gateway nodes)
  
  Functional Area affected:
  AFM
  
  Customer Impact:
  High Importance
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels