IT27916: CRASH CAN OCCUR WHEN PROCESSING WRITER INFORMATION (SYSTEMSTATE)

APAR status

• Closed as program error.

Error description

• A crash can occur with the processing of the writer information
  during a backup/archive of the systemstate backup,
  snapshot-based file backup and archive operations.
  
  Customer/L2 Diagnostics (if applicable)
  
  dsmcsvc.exe caused exception C0000005
  (EXCEPTION_ACCESS_VIOLATION) at 00000000C2F63943
     
  This APAR applies if the stack trace contains the following
  functions:
  
  dsmc!StrCmp+0x3
  dsmc!sortBinMerge+0x17a
  dsmc!llSortList+0x2b
  dsmc!VssRequestor::queryWriters+0x1176
  dsmc!vssQueryComponents+0x14a
  
  *NOTE*
  None
  
  Platforms affected:
  Windows 8.1.6.1
  
  Initial Impact: Medium
  
  Additional Keywords: TS001618622  crash abend 176668
  

Local fix

• Disable systemstate backup
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Spectrum Protect Backup-Archive client version 8.1.6.1 and   *
  * 8.1.7 running on all Microsoft Windows platforms             *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available.  This problem is          *
  * currently projected to be fixed in level 8.1.8.  Note that   *
  * this information is subject to change at the discretion of   *
  * IBM.                                                         *
  ****************************************************************
  

Problem conclusion

• The routine that handles VSS string can fail when input string
  is NULL. This routine has been modified to work with NULL
  string.
  

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:

Modules/Macros

• DSM      DSMC     DSMCSVC
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R81W PSY

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