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[2004-08-27 12:40 UTC] Volker dot Weinberger at pharma dot novartis dot com
Description:
------------
PHP CLI script consistently crashes with 5.0.1 *after* successful completion, i.e. the script executes successfully right to the end ("just before the end" line is printed in sample script below). Then, after a short delay, a bus error is produced (core dump).
The same scripts (as well as the original script, sample script is shortened) work fine with CLI PHP 4.3.6 .
The issue is tracked down to the d.seq field in the Oracle query, which is a CLOB 4000 field. The script does not crash when this field is omitted from the query.
PEAR DB is used for Oracle connection. PEAR DB version:
//
// $Id: DB.php,v 1.59 2004/07/08 21:15:11 danielc Exp $
//
Reproduce code:
---------------
#!.../php501
<?php
require_once('DB.php');
$dbh = DB::connect("oci8://...");
if (!$dbh) {
die("ERROR:Cannot connect to BCH1!");
}
$sql = " SELECT d.seq " .
" FROM sqbox.seqmandata d WHERE d.nvs_id = 'NVS00002050'" ;
$sth=$dbh->query($sql);
if(DB::isError($sth)){
die ($sth->getMessage());
}
print "just before the end\n";
?>
Expected result:
----------------
No core dump.
Actual result:
--------------
Script produces full correct results, but core dumps right at the end.
PatchesPull RequestsHistoryAllCommentsChangesGit/SVN commits
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Last updated: Thu Mar 27 17:01:30 2025 UTC |
I've managed to get --enable-debug compiled in with a recent CVS version of PHP: php5-200501180930 . The same error still occurs. Following instructions for a gdb backtrace I get: gdb ./php ./core GNU gdb 5.0 ... (gdb) bt #0 0x34e204 in ZEND_RETURN_SPEC_CV_HANDLER () #1 0x31946c in execute () #2 0x319948 in zend_do_fcall_common_helper_SPEC () #3 0x319d84 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER () #4 0x31946c in execute () #5 0x319948 in zend_do_fcall_common_helper_SPEC () #6 0x319d84 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER () #7 0x31946c in execute () #8 0x319948 in zend_do_fcall_common_helper_SPEC () #9 0x319d84 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER () #10 0x31946c in execute () #11 0x2db78c in zend_execute_scripts () #12 0x265050 in php_execute_script () #13 0x370018 in main () (gdb) frame 1 #1 0x31946c in execute () (gdb) print (char *)(executor_globals.function_state_ptr->function)->common.function_name Attempt to extract a component of a value that is not a structure. (gdb) Since PHP wasn't compiled with GCC, but with Solaris CC, using GDB might not give the expected result. Using SUN dbx instead: dbx ./php ./cor ... detected a multithreaded program t@1 (l@1) terminated by signal BUS (invalid address alignment) Current function is ZEND_RETURN_SPEC_CV_HANDLER (optimized) 17699 || (opline->extended_value == ZEND_RETURNS_FUNCTION && !EX_T(opline->op1.u.var).var.fcall_returned_reference)) { (/opt/SUNWspro/bin/../WS6U2/bin/sparcv9/dbx) where current thread: t@1 =>[1] ZEND_RETURN_SPEC_CV_HANDLER(execute_data = ???) (optimized), at 0x34e204 (line ~17699) in "zend_vm_execute.h" [2] execute(op_array = ???) (optimized), at 0x319464 (line ~78) in "zend_vm_execute.h" [3] zend_do_fcall_common_helper_SPEC(execute_data = ???) (optimized), at 0x319940 (line ~204) in "zend_vm_execute.h" [4] ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER(execute_data = ???) (optimized), at 0x319d7c (line ~288) in "zend_vm_execute.h" [5] execute(op_array = ???) (optimized), at 0x319464 (line ~78) in "zend_vm_execute.h" [6] zend_do_fcall_common_helper_SPEC(execute_data = ???) (optimized), at 0x319940 (line ~204) in "zend_vm_execute.h" [7] ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER(execute_data = ???) (optimized), at 0x319d7c (line ~288) in "zend_vm_execute.h" [8] execute(op_array = ???) (optimized), at 0x319464 (line ~78) in "zend_vm_execute.h" [9] zend_do_fcall_common_helper_SPEC(execute_data = ???) (optimized), at 0x319940 (line ~204) in "zend_vm_execute.h" [10] ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER(execute_data = ???) (optimized), at 0x319d7c (line ~288) in "zend_vm_execute.h" [11] execute(op_array = ???) (optimized), at 0x319464 (line ~78) in "zend_vm_execute.h" [12] zend_execute_scripts(type = ???, retval = ???, file_count = ???, ...) (optimized), at 0x2db784 (line ~1058) in "zend.c" [13] php_execute_script(primary_file = ???) (optimized), at 0x265048 (line ~1636) in "main.c" [14] main(argc = ???, argv = ???) (optimized), at 0x370010 (line ~944) in "php_cli.c" >frame 2 Current function is execute (optimized) 78 if (EX(opline)->handler(&execute_data TSRMLS_CC) > 0) { (char *) executor_globals.function_state_ptr->function->common.function_name = 0xac55c0 "raiseError"