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A segmentation fault might occur when using large disk caching offloads

Troubleshooting


Problem

The application server might experience an abrupt failure. The native_stderr.log file indicates the following segmentation error: []Unhandled exception Type=Segmentation error vmState=0x0002000f[]

Symptom

The entire native_stderr.log file includes an exception that is similar to the following example:

Unhandled exception
Type=Segmentation error vmState=0x0002000f
Windows_ExceptionCode=c0000005 J9Generic_Signal=00000004 ExceptionAddress=000007FEF82D87B9 ContextFlags=0010001f
Handler1=000007FEF845DAD0 Handler2=000007FEF92105F0
RDI=000000001FCADBC8 RSI=000000001779A870 RAX=0000000000000958 RBX=00000000177CED80
RCX=0000000000000000 RDX=0000000000000001 R8=0000000000000958 R9=000000000D365E18
R10=0000000000000000 R11=0000000000000000 R12=000007FEF82E3B88 R13=0000000000000000
R14=000000001FCADBC8 R15=0000000000082A00
RIP=000007FEF82D87B9 RSP=0000000022D8F0C8 RBP=0000000022D8F159 GS=002B
FS=0053 ES=002B DS=002B
And the javacore will identify the following Java module:
1XHEXCPMODULE  Module: c:\opt\Moonstone\WAS\java\jre\bin\compressedrefs\j9gc26.dll

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Not Applicable","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"8.0","Edition":"Base;Express;Network Deployment","Line of Business":{"code":"LOB77","label":"Automation Platform"}},{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Not Applicable","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"8.0","Edition":"Feature Pack for Web 2.0","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
03 March 2025

UID

swg21499624

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