Application crashes after 4 hours:

# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xfda55810, pid=27488, tid=22
#
# JRE version: 7.0-b143
# Java VM: Java HotSpot(TM) Server VM (21.0-b13-fastdebug compiled mode solaris-sparc )
# Problematic frame:
# V [libjvm.so+0x655810] unsigned SweepClosure::do_blk_careful(HeapWord*)+0x60


Stack: [0x9f600000,0x9f680000], sp=0x9f67f6a8, free space=509k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x655810] unsigned SweepClosure::do_blk_careful(HeapWord*)+0x60;; unsigned SweepClosure::do_blk_careful(HeapWord*)+0x60
V [libjvm.so+0x5ca5b4] void CompactibleFreeListSpace::blk_iterate_careful(BlkClosureCareful*)+0x34;; void CompactibleFreeListSpace::blk_iterate_careful(BlkClosureCareful*)+0x34
V [libjvm.so+0x648208] void CMSCollector::sweepWork(ConcurrentMarkSweepGeneration*,bool)+0x188;; void CMSCollector::sweepWork(ConcurrentMarkSweepGeneration*,bool)+0x188
V [libjvm.so+0x6477e8] void CMSCollector::sweep(bool)+0x3c8;; void CMSCollector::sweep(bool)+0x3c8
V [libjvm.so+0x6374dc] void CMSCollector::collect_in_background(bool)+0x630;; void CMSCollector::collect_in_background(bool)+0x630
V [libjvm.so+0x661090] void ConcurrentMarkSweepThread::run()+0x4c4;; void ConcurrentMarkSweepThread::run()+0x4c4
V [libjvm.so+0xdfd05c] java_start+0x184;; java_start+0x184