ID: 47522 User updated by: ms419 at freezone dot co dot uk Reported By: ms419 at freezone dot co dot uk -Status: Feedback +Status: Open Bug Type: Reproducible crash Operating System: Debian PHP Version: 5.2CVS-2009-02-27 (snap) New Comment:
Unfortunately I have been unable to reproduce this segfault in a short script - it seems whenever I try to cut something out of the larger project where it occurs, the segfault disappears. Casting the object to a string in a parent function does not produce a segfault, while calling a function and casting in the called function does. Even passing the object as the first as opposed to fourth argument of the function causes the segfault to disappear. The segfault occurs at line eight of this file: http://code.google.com/p/qubit-toolkit/source/browse/trunk/qubit/apps/qubit/modules/repository/templates/showIsdiahSuccess.php#8 Since r2041, a workaround has been committed to the render_title() function: http://code.google.com/p/qubit-toolkit/source/detail?r=2041 Removing that workaround causes the segfault to reappear. I am eager to help any way I can - but I have had no luck reproducing this segfault in a short script... Previous Comments: ------------------------------------------------------------------------ [2009-02-27 19:28:24] fel...@php.net Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with <?php and ends with ?>, is max. 10-20 lines long and does not require any external resources such as databases, etc. If the script requires a database to demonstrate the issue, please make sure it creates all necessary tables, stored procedures etc. Please avoid embedding huge scripts into the report. ------------------------------------------------------------------------ [2009-02-27 18:52:36] ms419 at freezone dot co dot uk Description: ------------ http://cgi.sfu.ca/~jdbates/tmp/php/200902270/core I am experiencing a reproducible segfault. I experience it with PHP 5.2.4 and 5.2.6. The segfault occurs at this expression: strlen($repository) where $repository is an object with a __toString() method. By substituting this expression, the segfault does not occur: strlen($repository->__toString()) To try to debug this segfault, I compiled a recent 5.2 snapshot with --enable-debug. It produced the above linked core file, which I opened with gdb to print a backtrace: http://cgi.sfu.ca/~jdbates/tmp/php/200902270/screenlog I am not sure what should be my next steps to help fix this segfault? ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=47522&edit=1
