PI32117: WEBSPHERE PLUGIN CRASHING ON REQUEST TO /SERVER-STATUS WHEN INTELLIGENT MANAGEMENT IS ENABLED

8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16

APAR status

• Closed as program error.

Error description

• WebSphere plugin 8.5.5.4 on Microsoft Windows is seen
  crashing on requests to /server-status when Intelligent
  Management is enabled
  
  Crash Stack:
  770232b0 ntdll!RtlpCoalesceFreeBlocks+0x35
  770235b7 ntdll!RtlpFreeHeap+0x1f4Page 26 of 30
  770234a2 ntdll!RtlFreeHeap+0x142
  75e114ad kernel32!HeapFree+0x14
  00447580 mod_was_ap22_http!free+0x46
  00413cd5 mod_was_ap22_http!websphere_status_hook+0x362
  6fe5102d mod_status!ap_run_status_hook+0x2d
  6fe51e89 mod_status!status_handler+0xdb9
  6ff0ffed libhttpd!ihs_run_handler+0xfd
  6ff0295e libhttpd!ap_invoke_handler+0xae
  6ff0f60e libhttpd!ap_process_request+0x3e
  6ff0b2cc libhttpd!ap_process_http_connection+0x4c
  6ff052d1 libhttpd!ap_run_process_connection+0x21
  6ff055a3 libhttpd!ap_process_connection+0x33
  6ff20995 libhttpd!worker_main+0xa5
  75cc1287 msvcrt!_endthreadex+0x44
  75cc1328 msvcrt!_endthreadex+0xce
  75e1338a kernel32!BaseThreadInitThunk+0xe
  77029f72 ntdll!__RtlUserThreadStart+0x70
  77029f45 ntdll!_RtlUserThreadStart+0x1b
  

Local fix

• disable access to /server-status  at IHS
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Some users of IBM WebSphere Application     *
  *                  Server using Intelligent Management         *
  *                  enabled WebSphere Plug-in                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: During or immediately after serving     *
  *                      the /SERVER-STATUS page on Microsoft    *
  *                      Windows operating systems a process     *
  *                      crash occurs.                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  "Parent: child process exited with status 255" entries may be
  seen in the Apache webserver error log.
  

Problem conclusion

• Intelligent Management enabled WebSphere Plug-in has been
  modified to correct the problem.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.6.  Please refer to the Recommended
  Updates page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP