Topic: child process exited with status 1 - zend_mm_heap corrupted

[jkauffman28]

Sometimes the error in the subject line is preceded by "zend_mm_heap corrupted" and other times not.

Event viewer
Faulting application name: httpd.exe, version: 2.2.21.0, time stamp: 0x4e6a3015
Faulting module name: ntdll.dll, version: 6.1.7601.18247, time stamp: 0x521ea8e7
Exception code: 0xc0000005
Fault offset: 0x0002e066
Faulting process id: 0xba8
Faulting application start time: 0x01cfbca9453ac3a2
Faulting application path: D:\Apache\bin\httpd.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll

Window-WER-diagnostics
Possible heap corruption detected (exception code 3221225477). Initiating further diagnostics.

Running on Windows 2008 R2 Std x64
24 GB RAM
Two Quad core Intel Xeon processors for 8 real and 8 virtual cpu's.

Apache 2.2.21
PHP 5.3.21
MySQL 5.6.10

The HTTPD child process starts about every 30 to 60 minutes, but very random. I can't link any specific end user activity on the server to this event.

[Steffen]

Looks a PHP issue.

Google with "zend_mm_heap corrupted" and you find some solutions.

Seems you running PHP as module. To prevent that PHP is "killing" your Apache try running it with mod_fcgid.

[James Blond]

0xc0000005 means access violation.

Not as a solution, but a workaround increase output_buffering= in your php.ini
How ever you have to find what is crashing your php and with that apache.

I think one of your php extension is crashing php. Disable all extension that you don't use.

Upgrade your php to the last version, if you can.

If your high number of cpu cores it makes sence to to use mod_fcgid cause PHP can run on all cores and is not limited to the one core that the apache process uses.

[jkauffman28]

I saw several references to this, some that say it resolved the issue, with others saying it did not.

I'm rather new to the WAMP environment. Is there a detailed config I could try that explains things at the idiot level? <Grin>

[James Blond]

Config for apache? Mod fcgid? PHP settings?

[jkauffman28]

Most definitely all of the above.

[jkauffman28]

James, my brother-in-law is from Hamburg. Hans Jurgeon Stender. I was a US Army Pilot stationed near Stuttgart during REFORGER. Loved Oktoberfest too.

[James Blond]

It would help if you could specify your questions. Cause now it is too generell.

[jkauffman28]

No problem. So in my Windows environment, provide a complete configuration for adding Mod fcgid to the applicable file(s).

Thanks in advance.

[Steffen]

As a start, see the readme in the zip download here.

[jkauffman28]

Sorry. Don't see a link,.

[Steffen]

see on the download pages here.

[jkauffman28]

I'm using the latest Chrome with the lasted Java and don't see a link. I'm currently reading:

http://httpd.apache.org/docs/2.2/howto/cgi.html

AND

http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html

Not sure if these are the web links you wanted me to read or not.

[Steffen]

Yes good to read them.

I meant: download mod fcgid from Apache Lounge and the readme in the zip.

[James Blond]

There is also a full example on http://www.apachelounge.com/viewtopic.php?t=2394

[jkauffman28]

My current production version Apache 2.2.21. From some additional reading, I seems like in that version I need to uninstall Apache, compile it with the mod_fcgid and then re-install. Did I get that right???

I've also a WAMP server in the amazon cloud that will become my new prod server in the future. It's running Apache 2.49. Seems that Apache 2.4 can load mod_fcgid at run time, and thus you don't need to uninstall, compile and re-install. Did I get that right as well???

TGIF

[Steffen]

Nope, 2.2 loads it at run time. Just follow the install instructions in the readme of the mod_fcgid zip you download from Apache Lounge, or the link James Blond gave you above for installing.

[jkauffman28]

OK. Looks to be a fun weekend.