I just installed Nginx 1.2.4 and PHP 5.4.0 (from svn) (php fpm). CentOs 5.8 64

The problem I have is that PHP crashes the moment I run any social oAuth scripts. I have tried to log into Facebook, Twitter and Google with various scripts that I know work on my other servers. When I load the scripts I get a 502 error from Nginx. And I find these errors in the log:

in php-fpm log:

WARNING: [pool www] child 23821 exited on signal 11 (SIGSEGV) after 1132.862984 seconds from start

in nginx log:

ERROR: recv() failed (104: Connection reset by peer) while reading response header from upstream

From what I can see, it goes wrong when PHP tries to make a request to any of the oAuth servers.

https://github.com/mahmudahsan/PHP-SDK-3.0---Graph-API-base-Facebook-Connect-Tutorial-Source for example is one of the scripts that works perfectly on my other machines, but causes PHP to crash.

I found: http://stackoverflow.com/questions/3616191/nginx-php-fpm-502-bad-gateway which seems to be a similar problem, but I cannot find a way to solve it.

+++ UPDATE +++

Now I have been doing some debugging in 1 of the scripts that is playing up.

If you go to line 808 http://pastebin.com/gSnzRtXb it runs the curl_exec() command.

When that is ran, it crashes. If i echo'test';exit; just above that line, it echo's correctly, if i do it below that line, php crashes.

Which means it's that line 808 which causes the crash.

So I made a very simple script to do some testing: http://pastebin.com/Rshnyhcm which also uses curl_exec, but that runs just fine.

So I started to dig deeper into that query from the facebook script to see what values the $opts array contains from line 806.

Output of that array is: http://pastebin.com/Cq9ffd3R

What the problem is, I still have no clue :(