Помогите При выключении серва краш To enable core dumping, try "ulimit -c

Код:

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f728864a5a0, pid=2093, tid=140129600186112
#
# JRE version: 7.0_13-b20
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.7-b01 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.so+0x7165a0]  nmethod::can_unload(BoolObjectClosure*, OopClosure*, oopDesc**, bool)+0x70
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
#  http://bugreport.sun.com/bugreport/crash.jsp
#

Как устранить можно ?

Пробовал ulimit -c 9999 также

 

UP[DOUBLEPOST=1406638139,1406638106][/DOUBLEPOST]Та же проблема,
Крашит сервер поганый WorldGuard :C[DOUBLEPOST=1406638178][/DOUBLEPOST]P.S. Вот лог после краша явы:
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007fe449743eca, pid=535, tid=140617986541312
#
# JRE version: OpenJDK Runtime Environment (7.0_55-b14) (build 1.7.0_55-b14)
# Java VM: OpenJDK 64-Bit Server VM (24.51-b03 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# J com.sk89q.worldguard.protection.databases.YAMLDatabase.setFlags(Lcom/sk89q/worldguard/protection/regions/ProtectedRegion;Lcom/sk89q/util/yaml/YAMLNodeV
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/servers/lastclassic/hs_err_pid535.log
#
# If you would like to submit a bug report, please include
# instructions on how to reproduce the bug and visit:
# http://icedtea.classpath.org/bugzilla
#
./lastclassic.sh: line 2: 535 Aborted java -Xincgc -Xmx10G -XX:MaxPermSize=4000M -jar Srvcore.jar