PH43383: WAS START FAILED BY DEADLOCK BETWEEN THE SERVER.STARTUP THREAD

APAR status

• Closed as program error.

Error description

• The deadlock occurs in the Equinox OSGi layer.
  It is shipped as part of the LongRunningScheduler.ear, which is
  a systemApp.
  
  Equinox bug for this deadlocking issue:
  https://bugs.eclipse.org/bugs/show_bug.cgi?id=479396
  
  
  LongRunningScheduler.ear system application fixed for the
  aforementioned the deadlock bug.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  Java Batch                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: A deadlock can occur during startup of  *
  *                      the LongRunningScheduler system app:    *
  *                      3XMTHREADINFO      "server.startup : 0" *
  *                      J9VMThread:0x00000000321FE100,          *
  *                      omrthread_t:0x0000010025DE8968,         *
  *                      java/lang/Thread:0x000000028258D6C8,    *
  *                      state:B, prio=5                         *
  *                      3XMJAVALTHREAD                          *
  *                      (java/lang/Thread getId:0x9A,           *
  *                      isDaemon:true)                          *
  *                      3XMTHREADINFO1            (native       *
  *                      thread ID:0x649014F, native             *
  *                      priority:0x5, native policy:UNKNOWN,    *
  *                      vmstate:B, vm thread flags:0x00000281)  *
  *                      3XMCPUTIME               CPU usage      *
  *                      total: 2.767175000 secs, user:          *
  *                      2.176358000 secs, system: 0.590817000   *
  *                      secs, current category="Application"    *
  *                      3XMTHREADBLOCK     Blocked on:          *
  *                      org/osgi/util/tracker/ServiceTracker$Tr *
  *                      acked@0x0000000281397838 Owned by:      *
  *                      "server.startup : 1"                    *
  *                      (J9VMThread:0x0000000032200500,         *
  *                      java/lang/Thread:0x000000028258D770)    *
  *                      3XMHEAPALLOC             Heap bytes     *
  *                      allocated since last GC cycle=0 (0x0)   *
  *                      3XMTHREADINFO3           Java           *
  *                      callstack:                              *
  *                      4XESTACKTRACE                at         *
  *                      org/osgi/util/tracker/ServiceTracker.ge *
  *                      tServiceReferences(ServiceTracker.java: *
  *                      555)                                    *
  *                      4XESTACKTRACE                at         *
  *                      org/osgi/util/tracker/ServiceTracker.ge *
  *                      tServiceReference(ServiceTracker.java:5 *
  *                      98)                                     *
  *                      4XESTACKTRACE                at         *
  *                      org/osgi/util/tracker/ServiceTracker.ge *
  *                      tService(ServiceTracker.java:719)       *
  *                      ...                                     *
  *                      4XESTACKTRACE                at         *
  *                      org/eclipse/equinox/servletbridge/Frame *
  *                      workLauncher.start(FrameworkLauncher.ja *
  *                      va:387)                                 *
  *                      5XESTACKTRACE                           *
  *                      (entered lock:                          *
  *                      org/eclipse/equinox/servletbridge/Frame *
  *                      workLauncher@0x0000000283ACA018, entry  *
  *                      count: 1)                               *
  *                      4XESTACKTRACE                at         *
  *                      org/eclipse/equinox/servletbridge/Bridg *
  *                      eServlet.init(BridgeServlet.java:65)    *
  *                      4XESTACKTRACE                at         *
  *                      javax/servlet/GenericServlet.init(Gener *
  *                      icServlet.java:244)                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The deadlock occurs in the Equinox OSGi layer. The
  LongRunningScheduler.ear system app makes use of
  org.eclipse.equinox.servletbridge and there is an Equinox bug
  for this deadlocking issue:
  https://bugs.eclipse.org/bugs/show_bug.cgi?id=479396
  If the org.eclipse.equinox.servletbridge prereq level that is
  packaged with WebSphere can be updated, this fix can be
  incorporated.
  

Problem conclusion

• The Eclipse servlet bridge prereq level used for this system app
  was updated to a level which contains the deadlock fix mentioned
  in the Problem Summary.
  
  The fix for this APAR is targeted for inclusion in fix pack
  9.0.5.12 and 8.5.5.22. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels