similar problem in Ubuntu 10.04

# /etc/init.d/php-fpm restart
Gracefully shutting down php-fpm . done
Starting php-fpm *** glibc detected *** /usr/local/sbin/php-fpm: free(): invalid 
pointer: 0x00007f78b5d45118 ***
======= Backtrace: =========
/lib/libc.so.6(+0x775b6)[0x7f78b2e6d5b6]
/lib/libc.so.6(cfree+0x73)[0x7f78b2e73e83]
/usr/local/sbin/php-fpm(destroy_zend_class+0x23d)[0x73953d]
/usr/local/sbin/php-fpm(zend_hash_clean+0x73)[0x74e7e3]
/usr/local/lib/php/extensions/no-debug-non-zts-
20100525/apc.so(apc_interned_strings_shutdown+0x20)[0x7f78b0285460]
/usr/local/lib/php/extensions/no-debug-non-zts-
20100525/apc.so(apc_module_shutdown+0x12a)[0x7f78b027d8fa]
/usr/local/lib/php/extensions/no-debug-non-zts-20100525/apc.so(+0xb07f)
[0x7f78b027407f]
/usr/local/sbin/php-fpm[0x747855]
/usr/local/sbin/php-fpm[0x74e152]
/usr/local/sbin/php-fpm(zend_hash_graceful_reverse_destroy+0x18)[0x74e3e8]
/usr/local/sbin/php-fpm[0x742443]
/usr/local/sbin/php-fpm(php_module_shutdown+0x2d)[0x6e671d]
/usr/local/sbin/php-fpm[0x7f12b9]
/usr/local/sbin/php-fpm[0x7e958e]
/usr/local/sbin/php-fpm[0x7f693a]
/usr/local/sbin/php-fpm[0x7e89c5]
/usr/local/sbin/php-fpm[0x7efb68]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7f78b2e14c4d]
/usr/local/sbin/php-fpm[0x42f989]


No error if disable APC.

I'm experiencing the same bug as the guy with Ubuntu yet on CentOS 5.7 with 
Apache. Same php version, same APC version, almost the same error:
*** glibc detected *** php-fpm: master process (/usr/lib/php-5.4.0-
custom/etc/php-fpm.conf): free(): invalid pointer: 0xb72a1010 ***

What is strange, php-apc was build from source and could not pass the "make test" 
step completely. When disabling APC everything is fine, otherwise php doesn't 
work at all.

If it would help, apache is running as MPM-Prefork. Everything else is pretty 
standard.

Exact same issue with PHP 5.4.0, APC 3.1.9 but on CentOS 6.

Gives error starting PHP-FPM and says failed, but PHP-FPM does actually start and 
APC appears to work fully. (Page generation time goes down to 1/4 of original gen 
time on Wordpress, like my production server)

Seems to be fixed now in latest APC dev http://pecl.php.net/get/APC

Hello

As of 2012-03-09 this bug seems to still be active.

Compiled PHP 5.4.0 with php-fpm
Compiled APC 3.1.9
Added apc.so to php.ini
Restarted php-fpm

Got a full boatload of errors similar in content and flavor to those already posted in these comments. Can post the entire output if needed.

okspam01 use APC from svn for now until we get a new APC release out.

I copy pasted the wrong link in my last comment, but the latest SVN APC seems to 
be broken again. I compiled with SVN APC a couple days ago and it worked fine; but 
today I redownloaded it and recompiled, and I now have the same error once again.

svn head (currently r324037) contains this problem.

Reverted back to r316786 which doesn't.

Actually r323587 is fine too it seems, but r323990 introduces the problem.

Problem seems fixed in r324146

Greetings.

I just downloaded latest dev version (5.4.1RC1-dev) and i'm still having this 
problem: Starting php-fpm *** glibc detected *** /usr/local/sbin/php-fpm: 
free(): invalid pointer: 0x00002aedda63c698 ***
(...) and a bunch of lines after this (...)

Everything seems to be working though. It's just this annoying error message.

My setup:
'./configure' '--enable-fpm' '--with-fpm-user=www-data' '--with-fpm-group=www-
data' '--with-curl' '--with-gd' '--with-jpeg-dir' '--with-freetype-dir' '--
enable-gd-native-ttf' '--with-mysql=mysqlnd' '--with-mysqli=mysqlnd' '--with-
pear' '--enable-soap' '--with-imap' '--with-imap-ssl' '--with-kerberos' '--
disable-pdo' '--with-zlib' '--with-openssl' '--enable-zip'
make
make install
pecl install apc

Cheers!

Hello,
I am currently running the following setup for PHP:
  --configure-options [--with-libdir=lib64 --with-gd --enable-fpm --with-mcrypt 
-
-with-curl --with-mysql --with-pdo-mysql]
  --version           [5.4.0]
  --vernum            [50400]
I checked out the following APC revision: 324292
From there I recompiled, and re-installed APC. 
Finally, restarted php-fpm and everything is working fine so far!

--Ben Korn

I also have the same problem with debian 5.4.0-3 packages.
Disabling apc (apc.enabled = 0) is a workaround which make php-fpm start.

I also tested with the last revision of apc (r324329 in my case); it fixes the problem. I guess this bug should be considered as fixed.

Seems like a duplicate of #61238 which was already fixed in APC at revision 324146.