#48034 [Csd->Opn]: PHP crashes when script is 8192 (8KB) bytes long

ID: 48034 Updated by: pajoye@php.net Reported By: ninzya at inbox dot lv -Status: Closed +Status: Open Bug Type: Reproducible crash Operating System: * PHP Version: 5.*, 6CVS (2009-04-21) Assigned To: dmitry New Comment: Not fixed. Only a temp hack. Previous Comments: ------------------------------------------------------------------------ [2009-04-28 07:16:19] dmitry@php.net This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2009-04-22 11:09:23] bjori@php.net See also bug#48043 ------------------------------------------------------------------------ [2009-04-21 17:20:21] ninzya at inbox dot lv I did everything mentioned in http://bugs.php.net/bugs-generating-backtrace-win32.php and got these results: Thread 250 - System ID 5552 Entry point msvcrt!_endthreadex+3a Create time 21.04.2009 15:20:51 Time spent in user mode 0 Days 0:0:0.656 Time spent in kernel mode 0 Days 0:0:0.921 Function Arg 1 Arg 2 Arg 3 Source php5ts!lex_scan+447c 0550fa34 010f54a0 0000002f php5ts!zend_register_auto_global+11f 00000000 00000000 00000000 ------------------------------------------------------------------------ [2009-04-21 15:31:46] lbarnaud@php.net It seems related to http://bugs.php.net/bug.php?id=47596 . Not exactly the same problem, though. It seems php_stream_open_for_zend() does not mmap() enough for ZEND_MMAP_AHEAD (PHP_STREAM_OPTION_MMAP_API in plain_wrapper adjusts the mmap length to the filesize, so ignoring ZEND_MMAP_AHEAD), and this may crash when the parser reads ahead of the mmap()ed region. ------------------------------------------------------------------------ [2009-04-21 11:50:51] ninzya at inbox dot lv PHP is installed as apache module. No fancy filtering, default php/apache installation. All php modules disabled. Bug hits only if file size is 8KB exactly (8192 bytes). PHP 5.2.9 also is affected. By the way, Apache 2.2 is not affected. Seems this is apache 2.0 specific problem. Don't know where to post this issue, here, or in Apache bugtracker. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/48034 -- Edit this bug report at http://bugs.php.net/?id=48034&edit=1