.
Thread 1 (LWP 8290):
#0  0x0000000000771f4f in ZEND_FETCH_DIM_R_SPEC_VAR_CONST_HANDLER (execute_data=0x7ffe20bec8d8) at /build/buildd/php5-5.5.3+dfsg/Zend/zend_vm_execute.h:14784
        opline = 0x7ffe090a8c00
        free_op1 = {var = 0x0}
        container = 0x0
#1  0x0000000000714ff8 in execute_ex (execute_data=0x7ffe20bec8d8) at /build/buildd/php5-5.5.3+dfsg/Zend/zend_vm_execute.h:356
        ret = <optimized out>
        original_in_execution = 0 '\000'
#2  0x00000000006ece30 in zend_execute_scripts (type=type@entry=8, retval=retval@entry=0x0, file_count=file_count@entry=3) at /build/buildd/php5-5.5.3+dfsg/Zend/zend.c:1316
        files = {{gp_offset = 40, fp_offset = 32767, overflow_arg_area = 0x7fff06519ea0, reg_save_area = 0x7fff06519e30}}
        i = 1
        file_handle = 0x7fff0651c210
        orig_op_array = 0x0
        orig_retval_ptr_ptr = 0x0
        orig_interactive = 0
#3  0x000000000068d165 in php_execute_script (primary_file=primary_file@entry=0x7fff0651c210) at /build/buildd/php5-5.5.3+dfsg/main/main.c:2484
        realfile = "\005\000\000\000\000\000\000\000\000`!\000\000\000\000\000\000\200!\000\000\000\000\000hs!\000\000\000\000\000\370\232!\000\000\000\000\000\000`\001\000\000\000\000\000\003", '\000' <repeats 47 times>, "\003\000\000\000\060\000\000\000[\000\000\000n\000\000\000w\000\000\000|\000\000\000@\261Q\006\377\177\000\000\000\000\000\000\032", '\000' <repeats 19 times>, "@G\271\036\376\177\000\000\000\000\000\000\000\000\000\000@G\271\036\376\177\000\000\"\000\000\000\000\000\000\000\320\224(\001", '\000' <repeats 12 times>, "\"\000\000\000\000\000\000\000\002\000\000\000\000\000\000\000\320t\205\036\376\177\000\000\320\224(\001\000\000\000\000\000\225(\001\000\000\000\000/\000\000\000\000\000\000\000\035\365\244 \376\177\000\000\f\000\000\000\000\000\000\000!\000\000\000\000\000\000\000"...
        __orig_bailout = 0x7fff0651c290
        __bailout = {{__jmpbuf = {15488288, -2335795567433233656, 0, 140733299420929, 0, 140729447786128, -2335795569234687224, 2336130417272539912}, __mask_was_saved = 0, __saved_mask = {__val = {11940198, 11940218, 11940235, 11940789, 140729413879616, 1, 18070575105050831360, 140733299420929, 0, 140729447785984, 0, 140733299420929, 0, 140729447786128, 6854788, 19433584}}}}
        prepend_file_p = <optimized out>
        append_file_p = 0x0
        prepend_file = {type = ZEND_HANDLE_FILENAME, filename = 0x0, opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0, isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, buf = 0x0, old_handle = 0x0, old_closer = 0x0}, reader = 0x0, fsizer = 0x0, closer = 0x0}}, free_filename = 0 '\000'}
        append_file = {type = ZEND_HANDLE_FILENAME, filename = 0x0, opened_path = 0x0, handle = {fd = 0, fp = 0x0, stream = {handle = 0x0, isatty = 0, mmap = {len = 0, pos = 0, map = 0x0, buf = 0x0, old_handle = 0x0, old_closer = 0x0}, reader = 0x0, fsizer = 0x0, closer = 0x0}}, free_filename = 0 '\000'}
        old_cwd = 0x7fff06519eb0 "/"
        retval = 0
#4  0x00000000004638f0 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/php5-5.5.3+dfsg/sapi/fpm/fpm/fpm_main.c:1933
        primary_script = 0x7ffe20c1e778 "/var/www/w/index.php"
        __orig_bailout = 0x0
        __bailout = {{__jmpbuf = {0, -2335795566251488504, 4, 140733299421014, 4294967295, 0, -2335795567431136504, 2336130574352370440}, __mask_was_saved = 0, __saved_mask = {__val = {0 <repeats 16 times>}}}}
        exit_status = 0
        c = <optimized out>
        use_extended_info = 0
        file_handle = {type = ZEND_HANDLE_MAPPED, filename = 0x7ffe20beb480 "/var/www/w/index.php", opened_path = 0x0, handle = {fd = 549578944, fp = 0x7ffe20c1e8c0, stream = {handle = 0x7ffe20c1e8c0, isatty = 0, mmap = {len = 2320, pos = 0, map = 0x0, buf = 0x7ffe20c5d000 <Address 0x7ffe20c5d000 out of bounds>, old_handle = 0x0, old_closer = 0x0}, reader = 0x6a3150 <_php_stream_read>, fsizer = 0x689a60 <php_zend_stream_fsizer>, closer = 0x689a40 <php_zend_stream_mmap_closer>}}, free_filename = 0 '\000'}
        orig_optind = 1
        orig_optarg = 0x0
        ini_entries_len = <optimized out>
        max_requests = 0
        requests = 0
        fcgi_fd = <optimized out>
        request = {listen_socket = 0, fd = 4, id = 1, keep = 0, closed = 0, in_len = 0, in_pad = 0, out_hdr = 0x0, out_pos = 0x7fff0651c460 "", out_buf = '\000' <repeats 8191 times>, reserved = '\000' <repeats 15 times>, env = 0x7ffe20bea2f0}
        fpm_config = 0x7fff0651ef56 ""
        fpm_prefix = 0x0
        fpm_pid = 0x0
        test_conf = 0
        force_daemon = 0
        php_information = 0
        php_allow_to_run_as_root = 0
        __func__ = "main"