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UnmappedAddressException Generating Heap Dump After JVM Crash (Doc ID 2126743.1)

Last updated on MARCH 29, 2017

Applies to:

Oracle WebLogic Server - Version 10.3.6 to 12.1.3.0.0
Information in this document applies to any platform.

Symptoms

When using WLS with jdk1.7.0_45, a crash occurs when generating a heap dump. The WLS server crashes after trying to attach jmap/jcmd to the heap dump without a FullGC request. The following is seen in the error log:

Current thread (0x00007fef1ce3c800): VMThread [stack: 0x00007fef106de000,0x00007fef107df000] [id=1689]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000010

Stack: [0x00007fef106de000,0x00007fef107df000], sp=0x00007fef107dd470, free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x58c246] DumperSupport::dump_field_value(DumpWriter*, char, unsigned char*)+0x1c6
V [libjvm.so+0x58d1fa] DumperSupport::dump_instance_fields(DumpWriter*, oopDesc*)+0x24a
V [libjvm.so+0x58de3b] DumperSupport::dump_instance(DumpWriter*, oopDesc*)+0xfb
V [libjvm.so+0x58f324] HeapObjectDumper::do_object(oopDesc*)+0x124
V [libjvm.so+0x8c8dca] ContiguousSpace::object_iterate_from(WaterMark, ObjectClosure*)+0x7a
V [libjvm.so+0x52fda0] IterateObjectClosureRegionClosure::doHeapRegion(HeapRegion*)+0x20
V [libjvm.so+0x59b079] HeapRegionSeq::iterate(HeapRegionClosure*) const+0x49
V [libjvm.so+0x531f69] G1CollectedHeap::safe_object_iterate(ObjectClosure*)+0x39
V [libjvm.so+0x590d7c] VM_HeapDumper::doit()+0x29c
V [libjvm.so+0x99b955] VM_Operation::evaluate()+0x55
V [libjvm.so+0x999d8a] VMThread::evaluate_operation(VM_Operation*)+0xba
V [libjvm.so+0x99a10e] VMThread::loop()+0x1ce
V [libjvm.so+0x99a580] VMThread::run()+0x70
V [libjvm.so+0x815288] java_start(Thread*)+0x108

VM_Operation (0x00007feeb4087970): HeapDumper, mode: safepoint, requested by thread 0x00007feec411e000

Cause

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In this Document
Symptoms
Cause
Solution
References


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