# Internal Error (/opt/jprt/T/P1/212300.cthaling/s/hotspot/src/share/vm/gc/shared/gcTimer.cpp:105), pid=13740, tid=13765
# assert(_next_phase_level > 0) failed: Underflow

Stack: [0x0000007f90319000,0x0000007f90419000], sp=0x0000007f90416e30, free space=1015k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xf23e00] VMError::report(outputStream*, bool)+0x1710;; VMError::report(outputStream*, bool)+0x1710
V [libjvm.so+0xf24384] VMError::report_and_die(int, char const*, char const*, std::__va_list, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x140;; VMError::report_and_die(int, char const*, char const*, std::__va_list, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x140
V [libjvm.so+0xf24f18] VMError::report_and_die(Thread*, char const*, int, char const*, char const*, std::__va_list)+0x54;; VMError::report_and_die(Thread*, char const*, int, char const*, char const*, std::__va_list)+0x54
V [libjvm.so+0x63ca54] report_vm_error(char const*, int, char const*, char const*, ...)+0xe0;; report_vm_error(char const*, int, char const*, char const*, ...)+0xe0
V [libjvm.so+0x79f548] ConcurrentGCTimer::register_gc_concurrent_end(Ticks const&)+0x12c;; ConcurrentGCTimer::register_gc_concurrent_end(Ticks const&)+0x12c
V [libjvm.so+0x736c30] G1ConcurrentMark::abort()+0xd8;; G1ConcurrentMark::abort()+0xd8
V [libjvm.so+0x71dd60] G1CollectedHeap::do_full_collection(bool, bool)+0x470;; G1CollectedHeap::do_full_collection(bool, bool)+0x470
V [libjvm.so+0x71e8a4] G1CollectedHeap::satisfy_failed_allocation(unsigned long, unsigned char, bool*)+0x204;; G1CollectedHeap::satisfy_failed_allocation(unsigned long, unsigned char, bool*)+0x204
V [libjvm.so+0xf57bf0] VM_G1CollectForAllocation::doit()+0xc0;; VM_G1CollectForAllocation::doit()+0xc0
V [libjvm.so+0xf56214] VM_Operation::evaluate()+0xb8;; VM_Operation::evaluate()+0xb8
V [libjvm.so+0xf53b44] VMThread::evaluate_operation(VM_Operation*)+0x138;; VMThread::evaluate_operation(VM_Operation*)+0x138
V [libjvm.so+0xf543c4] VMThread::loop()+0x48c;; VMThread::loop()+0x48c
V [libjvm.so+0xf54624] VMThread::run()+0xc4;; VMThread::run()+0xc4
V [libjvm.so+0xc7b198] java_start(Thread*)+0xd8;; java_start(Thread*)+0xd8
C [libpthread.so.0+0x7e2c] start_thread+0xb0