phpstorm crashes repeatedly after one crash

Hey,
with phpstorm, on my system, crashes happen. It's not very frequent, so not a big deal.
Or it would not be, if it wasn't such a pain to restart it.

Each time I have a crash, when I restart a green message indicates that indexes may be corrupted, so a reindex is preformed.
My main project is quite large, so indexing takes about 3-5 minutes. But phpstorm crashes randomly during this, and it takes about 5 attempts to have it working, really annoying.

Please what could I do to avoid that ?

I'm with Ubuntu 11.10, Phpstorm 3.0.3

Here is the output of the repetitive crash this morning :
(DEBUG are printed at start, the crash occurs way after that)

Java HotSpot(TM) 64-Bit Server VM (build 20.5-b03, mixed mode)
ERROR - [UNKNOWN] undefined object type: ATTRIBUTE
DEBUG - [ORACLE-SQL] undefined token type: KW_SALT
DEBUG - [ORACLE-SQL] undefined token type: KW_HASH
DEBUG - [ORACLE-SQL] undefined element type: alter_external_table_clauses
DEBUG - [ORACLE-SQL] undefined element type: records_per_block_clause
DEBUG - [ORACLE-SQL] undefined element type: ref_attribute
DEBUG - [ORACLE-SQL] undefined element type: physical_properties
DEBUG - [ORACLE-SQL] undefined element type: redo_logfile_spec
DEBUG - [ORACLE-SQL] undefined element type: row_movement_clause
DEBUG - [ORACLE-SQL] undefined element type: hash_subpartition_quantity
DEBUG - [ORACLE-SQL] undefined element type: return_type
DEBUG - [ORACLE-SQL] undefined element type: primary_operator
DEBUG - [ORACLE-SQL] undefined element type: xml_type_column_properties
DEBUG - [ORACLE-SQL] undefined element type: parameter_types
DEBUG - [ORACLE-SQL] undefined element type: partition_value
DEBUG - [ORACLE-SQL] undefined element type: lob_partition_storage
DEBUG - [ORACLE-SQL] undefined element type: create_cluster
DEBUG - [ORACLE-SQL] undefined element type: index_attributes
DEBUG - [ORACLE-SQL] undefined element type: parameter_type
DEBUG - [ORACLE-SQL] undefined element type: supplemental_id_key_claus
DEBUG - [ORACLE-SQL] undefined element type: scn_value
DEBUG - [ORACLE-SQL] undefined element type: move_table_clause
DEBUG - [ORACLE-SQL] undefined element type: data_item
DEBUG - [ORACLE-SQL] undefined element type: create_index_statement
DEBUG - [ISO92-SQL] undefined token type: KW_USER
DEBUG - [ISO92-SQL] undefined token type: KW_SESSION_USER
DEBUG - [ISO92-SQL] undefined token type: KW_SYSTEM_USER
DEBUG - [ISO92-SQL] undefined token type: KW_INDICATOR
DEBUG - [ISO92-SQL] undefined token type: CHR_QUESTION_MARK
DEBUG - [ISO92-SQL] undefined token type: KW_INDICATOR
DEBUG - [ISO92-SQL] undefined element type: numeric_value_function
DEBUG - [ISO92-SQL] undefined element type: qualifier
DEBUG - [ISO92-SQL] undefined element type: period
DEBUG - [ISO92-SQL] undefined element type: sign
DEBUG - [ISO92-SQL] undefined element type: table_expression
DEBUG - [ISO92-SQL] undefined element type: string_value_expression
DEBUG - [ISO92-SQL] undefined element type: case_expression
DEBUG - [ISO92-SQL] undefined element type: set_function_specification
DEBUG - [ISO92-SQL] undefined element type: cast_specification
DEBUG - [ISO92-SQL] undefined element type: general_literal
DEBUG - [ISO92-SQL] undefined element type: scalar_subquery
DEBUG - [ISO92-SQL] undefined element type: unsigned_numeric_literal
DEBUG - [ISO92-SQL] undefined element type: interval_value_expression
DEBUG - [ISO92-SQL] undefined element type: datetime_value_expression
DEBUG - [ISO92-SQL] undefined element type: column_reference
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f031f35ddca, pid=6137, tid=139651297285888
#
# JRE version: 6.0_30-b12
# Java VM: Java HotSpot(TM) 64-Bit Server VM (20.5-b03 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.so+0x4b0dca]  instanceKlass::oop_follow_contents(oopDesc*)+0x13a
#
# An error report file with more information is saved as:
# /opt/PhpStorm-111.19/bin/hs_err_pid6137.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#
Aborted