APAR status
Closed as program error.
Error description
A stop was issued for the Liberty server. The deactivate was driven for a z/OS core service to terminate. A java thread, "zOS Hard failure Cleanup Thread", was released to terminate and control was returned to its caller. The zOS Hard failure Cleanup Thread needs to drive native and access storage that may well be freed by asynchronous clean activity. This may result in a native ABEND under the JVM and produce a javacore. The javacore will show the following: 1XMCURTHDINFO Current thread 3XMTHREADINFO "zOS Hard failure Cleanup Thread" J9VMThread:0x000000000E864800, omrthread_t:0x00000051063CE840, java/lang/Thread:0x00000000807A39B8, state:R, prio=5 3XMJAVALTHREAD (java/lang/Thread getId:0x2E, isDaemon:true) 3XMTHREADINFO1 (native thread ID:0xDF97800, native priority:0x5, native policy:UNKNOWN, vmstate:R, vm thread flags:0x00000020) 3XMCPUTIME CPU usage total: 0.066000000 secs, current category="Application" 3XMHEAPALLOC Heap bytes allocated since last GC cycle=0 (0x0) 3XMTHREADINFO3 Java callstack: 4XESTACKTRACE at com/ibm/ws/zos/core/internal/HardFailureNativeCleanup.ntv_ha rdFailureCleanupDeactivate(Native Method) 4XESTACKTRACE at com/ibm/ws/zos/core/internal/HardFailureNativeCleanup$HardFa ilureCleanupThread.run(HardFailureNativeCleanup.java:146) 3XMTHREADINFO3 No native callstack available on this platform
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server Liberty for z/OS * **************************************************************** * PROBLEM DESCRIPTION: Abend on the zOS Hard failure Cleanup * * Thread during server stop processing * **************************************************************** * RECOMMENDATION: * **************************************************************** A stop was issued for the Liberty server. The deactivate was driven for a z/OS core service to terminate. A java thread, "zOS Hard failure Cleanup Thread", was released to terminate and control was returned to its caller. The zOS Hard failure Cleanup Thread needs to drive native and access storage that may well be freed by asynchronous clean activity. This may result in a native ABEND under the JVM and produce a javacore. The javacore will show the following: 1XMCURTHDINFO Current thread 3XMTHREADINFO "zOS Hard failure Cleanup Thread" J9VMThread:0x000000000E864800, omrthread_t:0x00000051063CE840, java/lang/Thread:0x00000000807A39B8, state:R, prio=5 3XMJAVALTHREAD (java/lang/Thread getId:0x2E, isDaemon:true) 3XMTHREADINFO1 (native thread ID:0xDF97800, native priority:0x5, native policy:UNKNOWN, vmstate:R, vm thread flags:0x00000020) 3XMCPUTIME CPU usage total: 0.066000000 secs, current category="Application" 3XMHEAPALLOC Heap bytes allocated since last GC cycle=0 (0x0) 3XMTHREADINFO3 Java callstack: 4XESTACKTRACE at com/ibm/ws/zos/core/internal/HardFailureNativeCleanup.ntv_hardFa ilureCleanupDeactivate(Native Method) 4XESTACKTRACE at com/ibm/ws/zos/core/internal/HardFailureNativeCleanup$HardFailur eCleanupThread.run(HardFailureNativeCleanup.java:146) 3XMTHREADINFO3 No native callstack available on this platform
Problem conclusion
Code has been modified to synchronize the shutting down of the zOS Hard failure Cleanup Thread with the calling thread. Control will not be returned to the calling thread until the zOS Hard failure Cleanup Thread has completed its call to native code for its termination processing. The fix for this APAR is currently targeted for inclusion in fix pack 20.0.0.3. 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 number
PH22759
Reported component name
LIBERTY PROF -
Reported component ID
5655W6514
Reported release
CD0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-02-27
Closed date
2020-03-02
Last modified date
2020-03-02
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
LIBERTY PROF -
Fixed component ID
5655W6514
Applicable component levels
RCD0 PSY
UP
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z Systems"}],"Version":"CD0","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
14 December 2020