[pylucene-dev] Using PyLucene from within Karrigell-3.0 crashes JavaVM

[Helmut Jarausch]

Hi,

I am posting to both mailing list, since it might have to do with
the interaction of Karrigell (multithreaded) and PyLucene.

Let me note first, that the same instructions outside of
Karrigell work just fine (and PyLucene has done a lot
of work to create the index before)
And it is working with Karrigell-2.x
So I am stuck.

Here the details:

Within Karrigell (conf.py) I have declared my Module
Common.py as a global_module.

With Common.py there is the initialization of Java's VM like
global _S_Common_Init

import lucene

try :
  if not _S_Common_Init :  pass
except NameError : 
  _S_Common_Init= False

if not _S_Common_Init :
  lucene.initVM(lucene.CLASSPATH)
  _S_Common_Init = True

so, the VM gets initialized exactly once (checked 
by some debugging output)

Probably when I invoke StandardAnalyzer from (pyLucene)
I get a Java exception:

# An unexpected error has been detected by Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0xb72c7c29, pid=24041, tid=3023141776
#
# Java VM: Java HotSpot(TM) Client VM (11.0-b15 mixed mode, sharing linux-x86)
# Problematic frame:
# C  [libjcc.so+0xdc29]  _ZN7JNIEnv_12NewStringUTFEPKc+0x9
#
# An error report file with more information is saved as:
# /home/jarausch/Bib/Web/Karrigell-3-081128/hs_err_pid24041.log

the first lines of which are

---------------  T H R E A D  ---------------

Current thread is native thread

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x00000000


Many thanks for any hints,
Helmut.

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany