IJ54026: DEADLOCK ON THE GATEWAY NODE AFTER A LOCAL SG PANIC

APAR status

• Closed as program error.

Error description

• There is a Race between Local SG Panic Handling Thread and
  msgMgrThreadBody on the handlerList. This causes deadlock in
  deciding who should delete and free the Filesystem.
  

Local fix

Problem summary

• There is a Race between Local SG Panic Handling Thread and
  msgMgrThreadBody on the handlerList. This causes deadlock in
  deciding who should delete and free the Filesystem.
  

Problem conclusion

• This problem is fixed in 5.1.9.9
  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:
  Fixed the code so that only one of the 2 threads will do the
  cleanup when a local SG panic happens.
  
  Work Around:
  None
  
  Problem trigger:
  Local Filesystem Panic happening when there are active IO
  requests happening on many filesets on the same FS.
  
  Symptom:
  Deadlock
  
  Platforms affected:
  Linux Only
  
  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