If I do bt full the following results are getting

#0  0x4033a662 in php_treat_data (arg=1, str=0x0, 
destArray=0x0) at php_variables.c:257
        res = 0x0
        var = 0x4058a6f8 "\004\0200"
        val = 0x0
        separator = 0x0
        c_var = 0x303 <Address 0x303 out of bounds>
        array_ptr = (pval *) 0x8185a4c
        free_buffer = 0
        strtok_buf = 0x0
#1  0x40333911 in php_hash_environment () at main.c:1038
        p = 0x814c852 "PCS"
        _gpc_flags = "\000\000"
        have_variables_order = 1 '\001'
        dummy_track_vars_array = (zval *) 0xbffff5e0
        initialized_dummy_track_vars_array = 0 '\000'
        i = 6
        track_vars_names = {0x404e663b "HTTP_POST_VARS", 
0x404e664a "HTTP_GET_VARS",
  0x404e6658 "HTTP_COOKIE_VARS", 0x404e6669 
"HTTP_SERVER_VARS", 0x404e667a "HTTP_ENV_VARS",
  0x404e6688 "HTTP_POST_FILES", 0x0}
        track_vars_names_length = {15, 14, 17, 17, 14, 16}
#2  0x40332e57 in php_request_startup () at main.c:621
No locals.
#3  0x4032f8c8 in apache_php_module_main (r=0x81813bc, 
display_source_mode=0) at sapi_apache.c:66
        file_handle = {type = 0 '\000', filename = 
0x4058a6f8 "\004\0200",
  opened_path = 0x4000ae60 "U\211?\203?\004WVS?", handle = 
{fd = 135798890, fp = 0x818206a},
  free_filename = 129 '\201'}
#4  0x403305d7 in send_php (r=0x81813bc, 
display_source_mode=0, filename=0x818194c "") at 
mod_php4.c:536
        retval = 0
        per_dir_conf = (HashTable *) 0x0
#5  0x40330615 in send_parsed_php (r=0x81813bc) at 
mod_php4.c:547
No locals.
#6  0x8079373 in ap_invoke_handler ()
No symbol table info available.
#7  0x808d339 in process_request_internal ()
No symbol table info available.
#8  0x808d768 in ap_internal_redirect ()
No symbol table info available.
#9  0x806bdd3 in mod_gzip_redir1_handler ()
No symbol table info available.
#10 0x806a72d in mod_gzip_handler ()
No symbol table info available.
#11 0x8079373 in ap_invoke_handler ()
No symbol table info available.
#12 0x808d339 in process_request_internal ()
No symbol table info available.
#13 0x808d39c in ap_process_request ()
No symbol table info available.
#14 0x80848ce in child_main ()
No symbol table info available.
#15 0x8084a7c in make_child ()
No symbol table info available.
#16 0x8084bd9 in startup_children ()
No symbol table info available.
#17 0x8085216 in standalone_main ()
No symbol table info available.
#18 0x80859b3 in main ()
No symbol table info available.
#19 0x400bc9cb in __libc_start_main (main=0x808565c 
<main>, argc=4, argv=0xbffffad4, init=0x8050370 <_init>,
    fini=0x80bc2dc <_fini>, rtld_fini=0x4000ae60 
<_dl_fini>, stack_end=0xbffffacc)
    at ../sysdeps/generic/libc-start.c:92
        argv = (char **) 0xbffffad4
        rtld_fini = (void (*)()) 0x4000ae60 <_dl_fini>
        stack_end = (void *) 0x303

The version of PHP that this bug was reported in is too old. Please
try to reproduce this bug in the latest version of PHP (available
from http://www.php.net/downloads.php

If you are still able to reproduce the bug with one of the latest
versions of PHP, please change the PHP version on this bug report
to the version you tested and change the status back to "Open".

I even tried with both php-4.0.6 and  php-4.1.0 versions 
still I am getting the same problem

Please provide a backtrace with 4.1.0 or even better, with the latest CVS.
(btw: enabling debug while compiling apache may also help...)

My problem has solved with version 4.1.1. Thanks for your 
help.
Abdu Samad

this should have been closed..