ID: 48034
Updated by: bjori@php.net
Reported By: ninzya at inbox dot lv
Status: Verified
Bug Type: Reproducible crash
Operating System: *
-PHP Version: 5.*, 6CVS (2009-04-21)
+PHP Version: 5.3CVS, 6CVS (2009-04-21)
New Comment:
See also bug#48043
Previous Comments:
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[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
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[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.
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[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.
------------------------------------------------------------------------
[2009-04-21 11:40:31] jani@php.net
Which apache module? Do you have some fancy filtering going on? Does
this happen with PHP 5.2.9 ? Do you have any shared extensions loaded?
Any Zend extensions like debugger or cache? (disable those and retry)
------------------------------------------------------------------------
[2009-04-21 11:27:52] ninzya at inbox dot lv
http://www.stepanov.lv/pub/bug48034.txt <--
php file contents
PHP as module.
It crashes by displaying "Apache.exe - Application error" window,
saying "The instruction at 0x0085779c referenced memory at 0x061e2000
(this actually varies). The memory could not be read. Click OK to
terminate the program."
(BTW, what is your formula for bogusness percentage?)
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