Apache exited with status 255 and zend_mm_heap corrupted

[kjbasiljohn]

APACHE 2.4.12
PHP 5.6.9
MySQL 5.6.24


Usual Apache Errors

[Tue Aug 18 04:04:13.414056 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00428: Parent: child process 337372 exited with status 255 -- Restarting.
[Tue Aug 18 04:04:13.507816 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00455: Apache/2.4.12 (Win32) configured -- resuming normal operations
[Tue Aug 18 04:04:13.507816 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00456: Apache Lounge VC11 Server built: Mar 20 2015 12:12:41
[Tue Aug 18 04:04:13.507816 2015] [core:notice] [pid 154640:tid 624] AH00094: Command line: 'C:\\Apache24\\bin\\httpd.exe -d C:/Apache24'
[Tue Aug 18 04:04:13.507816 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00418: Parent: Created child process 894812
[Tue Aug 18 04:04:13.960933 2015] [mpm_winnt:notice] [pid 894812:tid 532] AH00354: Child: Starting 64 worker threads.

zend_mm_heap corrupted
[Tue Aug 18 04:05:42.976553 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00428: Parent: child process 894812 exited with status 1 -- Restarting.
[Tue Aug 18 04:05:43.085931 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00455: Apache/2.4.12 (Win32) configured -- resuming normal operations
[Tue Aug 18 04:05:43.085931 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00456: Apache Lounge VC11 Server built: Mar 20 2015 12:12:41
[Tue Aug 18 04:05:43.085931 2015] [core:notice] [pid 154640:tid 624] AH00094: Command line: 'C:\\Apache24\\bin\\httpd.exe -d C:/Apache24'
[Tue Aug 18 04:05:43.085931 2015] [mpm_winnt:notice] [pid 154640:tid 624] AH00418: Parent: Created child process 932708
[Tue Aug 18 04:05:43.539061 2015] [mpm_winnt:notice] [pid 932708:tid 532] AH00354: Child: Starting 64 worker threads.


PHP Error Log
[18-Aug-2015 09:35:34 Pacific/Auckland] PHP Fatal error: Out of memory (allocated 10485760) (tried to allocate 19990125 bytes) in PATH\cake\libs\model\datasources\dbo_source.php on line 254
[18-Aug-2015 09:48:48 Pacific/Auckland] PHP Fatal error: Out of memory (allocated 46923776) (tried to allocate 13297177 bytes) in PATH\cake\libs\model\datasources\dbo\dbo_mysqli.php on line 200
[18-Aug-2015 09:54:01 Pacific/Auckland] PHP Fatal error: Out of memory (allocated 9699328) (tried to allocate 20220 bytes) in PATH\app\controllers\assets_controller.php on line 777
[18-Aug-2015 09:54:01 Pacific/Auckland] PHP Fatal error: Out of memory (allocated 7864320) (tried to allocate 20196 bytes) in PATH\app\controllers\assets_controller.php on line 777
[18-Aug-2015 09:58:55 Pacific/Auckland] PHP Fatal error: Out of memory (allocated 16252928) (tried to allocate 13369344 bytes) in PATH\cake\dispatcher.php on line 655


Following Bach Process are running
System, exec command

Could you please give help to fix the apache exit isssue?