ID: 40259
Comment by: noah at rave dot ca
Reported By: tomwys at o2 dot pl
Status: Open
Bug Type: Output Control
Operating System: Linux
PHP Version: 5.2.0
New Comment:
I have the same problem... Apache starts to user 50% cpu and then
crashes giving:
Fatal error: out of dynamic memory in yy_create_buffer() in Unknown on
line 0
Previous Comments:
------------------------------------------------------------------------
[2007-01-28 10:52:08] judas dot iscariote at gmail dot com
I got a segfault with $count = 1633. in 5.2.0
with 5_2 CVS in debug mode I get For exmaple
./sapi/cli/php -dmemory_limit=4M obmess.php
1PHP Fatal error: Allowed memory size of 4194304 bytes exhausted at
/home/cristian/php5/main/output.c:436 (tried to allocate 40961 bytes)
in /local/back/home/cristian/php5/obmess.php on line 4
[Sun Jan 28 07:49:34 2007] Script: 'obmess.php'
---------------------------------------
/home/cristian/php5/main/output.c(316) : Block 0x00EF8FE8 status:
Beginning: Cached
Freed (invalid)
Start: OK
End: OK
---------------------------------------
[Sun Jan 28 07:49:34 2007] Script: 'obmess.php'
---------------------------------------
/home/cristian/php5/main/output.c(319) : Block 0x0102CD58 status:
Beginning: Freed
Start: OK
End: OK
------------------------------------------------------------------------
[2007-01-28 08:15:38] [EMAIL PROTECTED]
It works even fine here with a count of 50000 if USE_ZEND_ALLOC=0 is
set. Maybe a MM failure?
------------------------------------------------------------------------
[2007-01-27 22:35:17] [EMAIL PROTECTED]
Mike, this looks like a stack overflow to me (note that ob_flush() is
used, not ob_end_flush() so we got insane amount of nested buffers).
Do you think you can do something about it?
------------------------------------------------------------------------
[2007-01-27 22:13:21] tomwys at o2 dot pl
Description:
------------
I have tested this code on two machines. I have memory error or
endless loop.
On first machine code fails from $count = 385 on second machine from
$count = 1633.
Reproduce code:
---------------
<?php
$count = 385;
for($i = 1; $i < $count; $i ++) {
ob_start();
echo $i;
ob_flush();
}
?>
Expected result:
----------------
123456789101112[etc.]
Actual result:
--------------
First machine:
1[there is endless loop and 100% CPU]
Second machine:
1*** glibc detected *** double free or corruption (top):
0x0000000004c9c370 ***
Aborted
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=40259&edit=1
