your crash isnt with FTB or even java itself. the crash is happening in native code, which is causing java to crash
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x58990c05, pid=6282, tid=3060611904
#
# JRE version: 7.0_25-b30
# Java VM: OpenJDK...