Accidental JVM crashes

hey guys, just wanting to get an overview if any of you experienced JVM crashes with jme2. Since I use it my JVMs consistently give a not too often crash. Most of the time it's happening in GCTaskThread or VMThread, which is kind of strange. It can happen just at start up (no heavy use at all), or any time later suddenly.



#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f5e75f54d01, pid=1676, tid=140043168798992
#
# JRE version: 6.0-b16
# Java VM: OpenJDK 64-Bit Server VM (14.0-b15 mixed mode linux-amd64 )
# Distribution: Custom build (Sat Aug  8 18:38:28 UTC 2009)
# Problematic frame:
# V  [libjvm.so+0x58fd01]
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
#   http://icedtea.classpath.org/bugzilla
#


  T H R E A D 

Current thread (0x0000000001234000):  GCTaskThread [stack: 0x00007f5e57445000,0x00007f5e57546000] [id=1684]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x00000000000000dc

Registers:
RAX=0x000000000000000c, RBX=0x00007f5e6d39a398, RCX=0x0000000000000001, RDX=0x00007f5e664acbc8
RSP=0x00007f5e57544c20, RBP=0x00007f5e57544cc0, RSI=0x000000000128c100, RDI=0x00007f5e6d399ea0
R8 =0x0000000000000001, R9 =0x00007f5e76409a98, R10=0x00007f5e7065e8a0, R11=0x0000000000000818
R12=0x00007f5e6d399de8, R13=0x000000000128c100, R14=0x00007f5e664acbc8, R15=0x0000000000000004
RIP=0x00007f5e75f54d01, EFL=0x0000000000010213, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
  TRAPNO=0x000000000000000e




#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fec5888decc, pid=6011, tid=140652556749072
#
# JRE version: 6.0-b16
# Java VM: OpenJDK 64-Bit Server VM (14.0-b15 mixed mode linux-amd64 )
# Distribution: Custom build (Sat Aug  8 18:38:28 UTC 2009)
# Problematic frame:
# V  [libjvm.so+0x4f5ecc]
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
#   http://icedtea.classpath.org/bugzilla
#


  T H R E A D 

Current thread (0x00000000011f5000):  VMThread [stack: 0x00007fec399e8000,0x00007fec39ae9000] [id=6019]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=128 (), si_addr=0x0000000000000000

Registers:
RAX=0x006b000f00000000, RBX=0x00007fec58ddea60, RCX=0x000000000211e0d0, RDX=0x000000000000035b
RSP=0x00007fec39ae7af0, RBP=0x00007fec39ae7b00, RSI=0x00007fec45b413c0, RDI=0x00007fec3a11f290
R8 =0x0000000000000007, R9 =0x0000000000000015, R10=0x000000000001f400, R11=0x0000000000000000
R12=0x00007fec58ddca98, R13=0x00007fec39ae7b10, R14=0x00007fec58de2430, R15=0x00007fec58ddcc41
RIP=0x00007fec5888decc, EFL=0x0000000000010246, CSGSFS=0x0000000000000033, ERR=0x0000000000000000
  TRAPNO=0x000000000000000d



Should i avoid using mixed mode, is there a way? Hmm. Any tips or similar experience?