http://mail.openjdk.java.net/pipermail/mlvm-dev/2011-May/002978.html

$ bin/jruby.sh --server bench/shootout/binarytrees.ruby-2.ruby 15
stretch tree of depth 16 check: -1
65536 trees of depth 4 check: -65536
16384 trees of depth 6 check: -16384
4096 trees of depth 8 check: -4096
1024 trees of depth 10 check: -1024
256 trees of depth 12 check: -256
64 trees of depth 14 check: -64
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xfd2c148a, pid=214384, tid=6
#
# JRE version: 7.0-b141
# Java VM: Java HotSpot(TM) Server VM (21.0-b11-fastdebug mixed mode solaris-x86 )
# Problematic frame:
# V [libjvm.so+0xac148a] void constantPoolKlass::oop_follow_contents(oop)+0x4a6


Stack: [0xd5885000,0xd5905000], sp=0xd59045d0, free space=509k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xac148a] void constantPoolKlass::oop_follow_contents(oop)+0x4a6
V [libjvm.so+0x16581fa] void MarkSweep::follow_stack()+0x1fa
V [libjvm.so+0x194f51d] void PSMarkSweep::mark_sweep_phase1(bool)+0x125
V [libjvm.so+0x194dae5] void PSMarkSweep::invoke_no_policy(bool)+0x509
V [libjvm.so+0x1992d19] void PSScavenge::invoke()+0x205
V [libjvm.so+0x18ac470] HeapWord*ParallelScavengeHeap::failed_mem_allocate(unsigned,bool)+0x120
V [libjvm.so+0x1cf2398] void VM_ParallelGCFailedAllocation::doit()+0xc4
V [libjvm.so+0x1d19bba] void VM_Operation::evaluate()+0xe2
V [libjvm.so+0x1d17e50] void VMThread::loop()+0x788
V [libjvm.so+0x1d17059] void VMThread::run()+0xc1
V [libjvm.so+0x184e573] java_start+0x6fb
C [libc.so.1+0xbb2dc] _thrp_setup+0x9d
C [libc.so.1+0xbb580] _lwp_start+0x0

VM_Operation (0xfc5fbfd0): ParallelGCFailedAllocation, mode: safepoint, requested by thread 0x0809b000