IC77095: CRASH IN ACQUIREXLATCHTRACKED DURING OFFSITE RECLAMATION

APAR status

• Closed as program error.

Error description

• During an offsite reclamation process, the server proces can
  crash,
  where a timing window can be encountered where memory has been
  freed,
  but there are still active threads referencing that memory.
  
  Output from dbx on aix server;
  
  Segmentation fault in AcquireXLatchTracked at 0x1001b6388
  ($t1218372)
  0x1001b6388 (AcquireXLatchTracked+0x48) 90050000       stw
  r0,0x0(r5)
  
  (dbx) where
  AcquireXLatchTracked(??, ??, ??, ??)      at 0x1001b6388
  OutGetMsg(??, ??, ??, ??, ??)             at 0x10040f300
  StdPutMsg(??, ??, ??, ??, ??, ??, ??, ??) at 0x10000ccec
  outRptf(0x18, 0x41000000410, 0x11cbe6b0c, 0x113a39868, 0xa0c7,
  0x0,
          0x65, 0x100bded6c)                at 0x10000e704
  RclmOffsiteVols(??)                       at 0x1008c041c
  AfRclmVolumeThread(??)                    at 0x1008bf8bc
  StartThread(??)                           at 0x10001b684
  
  Initial Impact:
  Medium
  .
  Tivoli Storage Manager Versions Affected:
  Tivoli Storage Manager servers on all platforms.
  .
  Additional Keywords:
  TSM  ZZ62  zz61 reclamation core crash dump
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Tivoli Storage Manager server users.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: See error description.                  *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available. This      *
  *                 problem is currently projected to be fixed   *
  *                 in level 6.2.4. Note that this is *
  *                                                              *
  *                 subject to change at the discretion of IBM.  *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.
  Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
  

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

  TSM SERVER

• Fixed component ID

  5698ISMSV

Applicable component levels

• R61A PSY

     UP

• R61H PSY

     UP

• R61L PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP

• R61Z PSY

     UP

• R62A PSY

     UP

• R62H PSY

     UP

• R62L PSY

     UP

• R62S PSY

     UP

• R62W PSY

     UP

• R62Z PSY

     UP