IZ61158: LOOP AT INITIALIZATION 1DE00000=KDE1_STC_CANTBIND=11

IBM Tivoli Monitoring 6.2.2 Fix Pack 8 (6.2.2-TIV-ITM-FP0008)
IBM Tivoli Monitoring 6.2.2 Fix Pack 9 (6.2.2-TIV-ITM-FP0009)
IBM Tivoli Monitoring 6.2.2 Fix Pack 6 (6.2.2-TIV-ITM-FP0006)

APAR status

• Closed as program error.

Error description

• Environment: All distributed Tivoli Monitoring platforms
  
  Problem Description:
  A Tivoli monitoring process can fail in BaseBind with errno
  EAGAIN.  For Bind, Errno EAGAIN is documented as "Kernel
  resources to complete the request are temporarily
  unavailable".  The Basic Serices caller retries the BIND
  request without bound and without any embedded wait. The
  resultis a loop in Tivoli process initialization which
  consumes all available CPU cycles and renders the
  system unusable until the process is killed.
  
  Detailed Recreation Procedure:
  This defect rare: no recreate scenario is possible.
  
  Detailed Recreation Procedure:
  This defect rare: no recreate scenario is possible.
  
  Related Files and Output:
  The following RAS1 log msgs are visible (with default
  KBB_RAS1=ERROR):
  "KDEB_BaseBind") Status 1DE00000=KDE1_STC_CANTBIND=11: NULL
  "KDEB_BaseBind") <0x110C99248,0x10> bind: status 1DE00000,
                   00020000 00000000  00000000 00000000
  "bind_ep") <0x110C99248,0x10> BSD bind details:
                   Status 1DE00000 Errno 0
                   00000000   00020000 00000000  00000000 00000000
  *==============================================================+
  

Local fix

• No Known Workaround
  

Problem summary

• A Tivoli monitoring process can fail in BaseBind with Errno
  EAGAIN.  For Bind, Errno EAGAIN is documented as "Kernel
  resources to complete the request are temporarily unavailable".
  The caller of Basic Services retries this failure without bound
  and without any embedded wait. The result is a loop in Tivoli
  process initialization which consumes all available CPU cycles
  and renders the system unusable until the process is killed.
  

Problem conclusion

• Processing has been changed to return socket pairs to the
  operating system on accept processing failures.  This is
  expected to remedy the transient Kernel resource shortage.
  Additional diagnostics have been instrumented at all BIND calls
  for First Failure Data Capture in an attempt to diagnose the
  unbounded calls to Basic Services.
  
  
  The fix for this APAR is contained in the following maintenance
  packages:
  
     | fix pack | 6.2.1-TIV-ITM-FP0001
  

Temporary fix

• Re-cycle the looping process.
  

Comments

APAR Information

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

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

  IZ64696 OA31006 IZ64708 OA31036

Fix information

• Fixed component name

  TEMA

• Fixed component ID

  5724C04TE

Applicable component levels

• R621 PSY

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