IJ44837: THE MMRESTOREFS MAY RESULT IN SEGMENTATION FAULT MESSAGE FOR THE TSAPOLICY PROCESS

APAR status

• Closed as program error.

Error description

• After the mmrestorefs command (and mmafmctl commands that
  internally calls file system or fileset restore functionality)
  that is used to restore a file system or an independent fileset
  completes successfully, at times, a segmentation fault error
  from the tsapolicy process can be observed if the cipherList
  configuration variable is set to AUTHONLY or real cipher value.
  

Local fix

• 1) this problem can be ignored because it has no impact to the
  mmrestorefs functionality
  2) run mmrestorefs with -N <localnode>
  

Problem summary

• After the mmrestorefs command (and mmafmctl commands that
  internally calls file system or fileset restore functionality)
  that is used to restore a file system or an independent fileset
  completes successfully, at times, a segmentation fault error
  from the tsapolicy process can be observed if the cipherList
  configuration variable is set to AUTHONLY or real cipher value.
  

Problem conclusion

• This problem is fixed in 5.1.6.1
  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:
  No more segmentation fault message will be observed.
  
  Work Around:
  1) this problem can be ignored because it has no impact to the
  mmrestorefs functionality
  2) run mmrestorefs with -N <localnode>
  
  Problem trigger:
  Run mmrestorefs with multiple nodes when the cipherList
  configuration variable is set to AUTHONLY or real cipher value
  
  Symptom:
  Error output/message
  After executing the mmrestorefs command, system error log
  (dmesg in Linux or errpt in AIX) may display messages like
  these:
  "[16342239.952383] tsapolicy[1627940]: segfault at a ip
  00007f2fda7915f5 sp 00007ffe171250c8 error 4 in
  libc-2.28.so[7f2fda634000+1bc000]"
  
  Platforms affected:
  AlX, Linux
  
  Functional Area affected:
  mmrestorefs
  
  Customer Impact:
  Suggested
  

Temporary fix

Comments

APAR Information

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

  IJ44830

• 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