entering perl callback handler...
my_perl == NULL

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7b55b90 (LWP 28603)]
0xb7b6b1e8 in SWIG_Wrap_callback (event=int,
    p_data=0xb7b553a0)
    at ../../../../../..//client/perl/bsa_api_wrap.c:2005
2005          printf("Destruct level : %d...\n", PL_perl_destruct_level);
(gdb) where
#0  0xb7b6b1e8 in SWIG_Wrap_bsa_disc_callback (event=int,
    p_data=0xb7b553a0)
    at ../../../../../../client/perl/bsa_api_wrap.c:2005
#1  0xb7bce6e5 in bsa_mgt_disc_hdlr (p_msg=0xb7bf3aac)
    at ../../../../../..//client/mgt/bsa_mgt_int.c:63
#2  0xb7bce8ce in callback_task (param=0)
    at ../../../../../..//client/mgt/bsa_mgt_int.c:159
#3  0xb7ec94fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb7e4be5e in clone () from /lib/tls/i686/cmov/libc.so.6


##</code><code>##

void SWIG_Wrap_callback(int event, tMy_MSG *p_data)
{
      printf("entering perl callback handler...\n");
      dTHX;  /*Not sure this is needed, but doesnt make any difference */
      if ( my_perl != NULL )
         printf ("my_perl == %ul\n", my_perl);
      else
         printf ("my_perl == NULL\n");  /* This line is printed*/

      PERL_SET_CONTEXT(my_perl); /* Not sure this is needed, but tried in vain */

      printf("dTHX done...\n");
      dSP;  /* Crashes here */

      printf("Destruct level : %d...\n", PL_perl_destruct_level);  /* "0" (ZERO) is printed under the scenario where callback invokation works.  Does it mean perl is not built correctly per my needs?? */

      printf("DSP done...\n");
      SV * sv = bsa_perl_disc_callback;
      if (sv == (SV*)NULL)
         croak("Internal error...\n");

      printf("Preparing to call perl callback...\n");
      PUSHMARK(SP);
      XPUSHs(sv_2mortal(newSViv(event)));
      printf("newSViv of %d done...\n", event);
      XPUSHs(SWIG_NewPointerObj(SWIG_as_voidptr(p_data), SWIGTYPE_p_tMy_MSG, SWIG_SHADOW));
      printf("newSVsv...\n");
      PUTBACK;

      printf("calling the Perl sub...\n");
      /* Call the Perl sub */
      call_sv(sv, G_DISCARD);
      printf("Perl sub completed successfully...\n");
}

##</code><code>##

      printf("entering perl callback handler...\n");
      register PerlInterpreter *my_perl __attribute__((unused)) = ((PerlInterpreter *)pthread_getspecific((*Perl_Gthr_key_ptr(((void *)0)))));
      if ( my_perl != ((void *)0) )
         printf ("my_perl == %ul\n", my_perl);
      else
         printf ("my_perl == NULL\n");
      (void)( { int _eC_; if ((_eC_ = pthread_setspecific((*Perl_Gthr_key_ptr(((void *)0))), (void *)(my_perl)))) Perl_croak_nocontext("panic: pthread_setspecific (%d) [%s:%d]", _eC_, "../../../../../../3rdparty/embedded/brcm/bsa/client/perl/bsa_api_wrap.c", 2005); } );
      printf("dTHX done...\n");
      register SV **sp = (*Perl_Tstack_sp_ptr(((PerlInterpreter *)pthread_getspecific((*Perl_Gthr_key_ptr(((void *)0)))))));
      printf("Destruct level : %d...\n", (*Perl_Iperl_destruct_level_ptr(((PerlInterpreter *)pthread_getspecific((*Perl_Gthr_key_ptr(((void *)0))))))));
      printf("DSP done...\n");

##</code><code>##

-Dbool=char -fpic -D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -pipe -isystem /usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DSWIG -g -DMULTIPLICITY -DPERL_IMPLICIT_CONTEXT -DTHREADS_HAVE_PIDS -DUSE_LARGE_FILES -DUSE_PERLIO -DUSE_REENTRANT_API -DBSA_CLIENT

##</code><code>##

Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
  Platform:
    osname=linux, osvers=2.6.24-19-server, archname=i486-linux-gnu-thread-multi
    uname='linux palmer 2.6.24-19-server #1 smp sat jul 12 00:40:01 utc 2008 i68
6 gnulinux '
    config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -Dcccdlflags=-f
PIC -Darchname=i486-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.8 -Darch
lib=/usr/lib/perl/5.8 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendora
rch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.8.8
 -Dsitearch=/usr/local/lib/perl/5.8.8 -Dman1dir=/usr/share/man/man1 -Dman3dir=/u
sr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man
/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh
-Ud_ualarm -Uusesfio -Uusenm -Duseshrplib -Dlibperl=libperl.so.5.8.8 -Dd_dosuid
-des'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=define use5005threads=undef useithreads=define usemultiplicity=define
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN -fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='4.2.3 (Ubuntu 4.2.3-2ubuntu7)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
    perllibs=-ldl -lm -lpthread -lc -lcrypt
    libc=/lib/libc-2.7.so, so=so, useshrplib=true, libperl=libperl.so.5.8.8
    gnulibc_version='2.7'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: MULTIPLICITY PERL_IMPLICIT_CONTEXT
                        PERL_MALLOC_WRAP THREADS_HAVE_PIDS USE_ITHREADS
                        USE_LARGE_FILES USE_PERLIO USE_REENTRANT_API
  Built under linux
  Compiled at Jan 14 2009 22:34:36
  @INC:
    /etc/perl
    /usr/local/lib/perl/5.8.8
: