IJ39089: GANESHA CRASH AT STATE_WIPE_FILE()

APAR status

• Closed as program error.

Error description

• Ganesha crashed with below stack:
  #012#5  0x00007f65b55a5e4e state_wipe_file
  (libganesha_nfsd.so.3.5)
  #012#6  0x00007f65b567787c _mdcache_lru_unref
  (libganesha_nfsd.so.3.5)
  #012#7  0x00007f65b56568e2 mdcache_put (libganesha_nfsd.so.3.5)
  #012#8  0x00007f65b565adea mdcache_put_ref
  (libganesha_nfsd.so.3.5)
  #012#9  0x00007f65b5619d73 open4_create_fh
  (libganesha_nfsd.so.3.5)
  #012#10 0x00007f65b561c451 open4_ex (libganesha_nfsd.so.3.5)
  #012#11 0x00007f65b561d6c0 nfs4_op_open (libganesha_nfsd.so.3.5)
  #012#12 0x00007f65b5604cca process_one_op
  (libganesha_nfsd.so.3.5)
  #012#13 0x00007f65b5605d46 nfs4_Compound
  (libganesha_nfsd.so.3.5)
  #012#14 0x00007f65b555b99c nfs_rpc_process_request
  (libganesha_nfsd.so.3.5)
  

Local fix

Problem summary

• Ganesha crashed with below stack:
  #012#5  0x00007f65b55a5e4e state_wipe_file
  (libganesha_nfsd.so.3.5)
  #012#6  0x00007f65b567787c _mdcache_lru_unref
  (libganesha_nfsd.so.3.5)
  #012#7  0x00007f65b56568e2 mdcache_put (libganesha_nfsd.so.3.5)
  #012#8  0x00007f65b565adea mdcache_put_ref
  (libganesha_nfsd.so.3.5)
  #012#9  0x00007f65b5619d73 open4_create_fh
  (libganesha_nfsd.so.3.5)
  #012#10 0x00007f65b561c451 open4_ex (libganesha_nfsd.so.3.5)
  #012#11 0x00007f65b561d6c0 nfs4_op_open (libganesha_nfsd.so.3.5)
  #012#12 0x00007f65b5604cca process_one_op
  (libganesha_nfsd.so.3.5)
  #012#13 0x00007f65b5605d46 nfs4_Compound
  (libganesha_nfsd.so.3.5)
  #012#14 0x00007f65b555b99c nfs_rpc_process_request
  (libganesha_nfsd.so.3.5)
  

Problem conclusion

• This problem is fixed in 5.1.3 PTF 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:
  Corrected code to avoid crash.
  Work around: N/A
  Problem trigger:
  The problem may occur if there are a lot
  of small files with the same filename
  created/deleted from nfs clients at the same time.
  Symptom: Ganesha Crash
  Platforms affected: ALL Operating System environments
  Functional Area affected: cNFS/ NFS-ganesha
  Customer Impact: Suggested
  

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