Segfault with spl_autoload
| From: | Sebastian Bergmann | Date: | Tue, 16 Aug 2005 10:33:53 +0000 |
| Subject: | Segfault with spl_autoload | ||
| Groups: | php.internals | ||
| Request: | Send a blank email to internals+get-18163@lists.php.net to get a copy of this message | ||
I am experiencing a segfault with spl_autoload in the PHP_5_1 branch
with the upcoming PHPUnit 2.3.0.
The nature of PHPUnit's complexity makes it almost impossible for me to
come up with a simple, reproducing script (I already invested hours into
this, to no avail so far).
It is weird that the segfault only occurs in one out of two common
code paths of PHPUnit's TextUI test runner.
Furthermore, small code changes (see below) seem to make the problem
go away:
Segfault:
function PHPUnit2_Util_Classloader($className) {
print "Loading $className.\n";
if (strpos($className, 'PHPUnit2_') !== FALSE) {
@include(str_replace('_', '/', $className) . '.php');
}
}
spl_autoload_register('PHPUnit2_Util_Classloader');
Segfault:
function PHPUnit2_Util_Classloader($className) {
$bt = debug_backtrace();
print "Loading $className.\n";
if (strpos($className, 'PHPUnit2_') !== FALSE) {
@include(str_replace('_', '/', $className) . '.php');
}
}
spl_autoload_register('PHPUnit2_Util_Classloader');
No Segfault:
function PHPUnit2_Util_Classloader($className) {
$bt = debug_backtrace();
print_r($bt[1]);
print "Loading $className.\n";
if (strpos($className, 'PHPUnit2_') !== FALSE) {
@include(str_replace('_', '/', $className) . '.php');
}
}
spl_autoload_register('PHPUnit2_Util_Classloader');
Below are the links to the results of GDB and Valgrind. Interestingly,
when run through GDB it segfaults, when run through Valgrind it does
not segfault.
GDB: http://www.sebastian-bergmann.de/stuff/phpunit2-gdb.txt
Valgrind: http://www.sebastian-bergmann.de/stuff/phpunit2-valgrind.txt
--
Sebastian Bergmann http://www.sebastian-bergmann.de/
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