Bug #69777 [NEW]: 502 Bad Gateway when getting response

From: sb at firstvector dot org Operating system: OS X Yosemite 10.10.3 (14D136) PHP version: 5.6.9 Package: FPM related Bug Type: Bug Bug description:502 Bad Gateway when getting response Description: ------------ Using PHP-FPM 5.6.9 I've getting the error while working with cURL, for example. When I commented the code that does remote requests then everything's fine, otherwise error log contains an errors like: upstream prematurely closed connection while reading response header from upstream, client: 127.0.0.1, server: unga.loc, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "unga.loc", referrer: "http://unga.loc/content/test-project-4" For solving this problem I've tried to use UNIX socket and TCP connection - no result. So, I've think that is an error. Used software: nginx 1.8.0 (also tested on 1.6.3) php-fpm 5.6.9 (works fine on 5.6.7) Test script: --------------- // Execution of this (and similar) code will ends by 502 error. $ch = curl_init('https://php.net'); curl_setopt_array($ch, [ CURLOPT_HTTPGET => true, CURLOPT_RETURNTRANSFER => true, ]); $response = curl_exec($ch); curl_close($ch); var_dump($response); -- Edit bug report at https://bugs.php.net/bug.php?id=69777&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69777&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69777&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69777&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69777&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69777&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69777&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69777&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69777&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69777&r=support Expected behavior: https://bugs.php.net/fix.php?id=69777&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69777&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69777&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69777&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69777&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69777&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69777&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69777&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69777&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69777&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69777&r=mysqlcfg