CMS: SIGSEGV in CompactibleFreeListSpace::compact

Application crashes with SIGSEGV in CompactibleFreeListSpace::compact

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xf6c86a64, pid=5686, tid=3718474640
#
# JRE version: 6.0_18-b07
# Java VM: Java HotSpot(TM) Server VM (16.0-b13 mixed mode linux-x86 )
# Problematic frame:
# V [libjvm.so+0x263a64]
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

Stack trace:
Instructions: (pc=0xf6c86a64)
0xf6c86a54: f9 05 74 05 89 d6 83 e6 fc 89 f3 3b 5d c4 73 31
0xf6c86a64: 8b 03 83 e0 03 83 f8 03 0f 84 7e 00 00 00 8b 13
;; f6c86a54 f9 stc
;; f6c86a55 05 74 05 89 d6 add $0xd6890574,%eax
;; f6c86a5a 83 e6 fc and $0xfffffffc,%esi
;; f6c86a5d 89 f3 mov %esi,%ebx
;; f6c86a5f 3b 5d c4 cmp 0xffffffc4(%ebp),%ebx
;; f6c86a62 73 31 jae 0xf6c86a95
;; ---------------
;; f6c86a64 8b 03 mov (%ebx),%eax
;; f6c86a66 83 e0 03 and $0x3,%eax
;; f6c86a69 83 f8 03 cmp $0x3,%eax
;; f6c86a6c 0f 84 7e 00 00 00 je 0xf6c86af0
;; f6c86a72 8b 13 mov (%ebx),%edx
;;
Stack: [0xdd9b6000,0xdda37000], sp=0xdda35b70, free space=1fedda35500k
V [libjvm.so+0x263a64];; CompactibleFreeListSpace::compact()+0x54
V [libjvm.so+0x33670c];; Generation::compact()+0x2c
V [libjvm.so+0x32cac9];; GenMarkSweep::invoke_at_safepoint(int, ReferenceProcessor*, bool)+0x489
V [libjvm.so+0x288724];; CMSCollector::do_compaction_work(bool)+0x184
V [libjvm.so+0x2880ee];; CMSCollector::acquire_control_and_collect(bool, bool)+0x13e
V [libjvm.so+0x287e05];; ConcurrentMarkSweepGeneration::collect(bool, bool, unsigned int, bool)+0xf5
V [libjvm.so+0x32a103];; GenCollectedHeap::do_collection(bool, bool, unsigned int, bool, int)+0x473
V [libjvm.so+0x32b2f8];; GenCollectedHeap::do_full_collection(bool, int)+0x38
V [libjvm.so+0x68c76b];; VM_GenCollectForPermanentAllocation::doit()+0x17b
V [libjvm.so+0x69a306];; VM_Operation::evaluate()+0x46
V [libjvm.so+0x6997b3];; VMThread::evaluate_operation(VM_Operation*)+0x83
V [libjvm.so+0x699a2f];; VMThread::loop()+0x19f
V [libjvm.so+0x699510];; VMThread::run()+0x80
V [libjvm.so+0x55de9e];; java_start(Thread*)+0x14e