Bug #68927 [NEW]: upstream sent invalid status "40" while reading response header from upstream

From: jimspiti at hotmail dot com Operating system: Centos 6.6 PHP version: 5.4.37 Package: Other web server Bug Type: Bug Bug description:upstream sent invalid status "40" while reading response header from upstream Description: ------------ Hi I am using Nginx and phpfpm... When i try to use this link on my forum: http://www.domain.com/index.php?app=members&module=messaging&section=send&do=form I am getting 502 bad gateway error but only for this link as all the rest on my forum is working great.. Checking the nginx logs as (php logs don't report anything) i got this: upstream sent invalid status "40" while reading response header from upstream On the net here is no any related info about this error code :( Thanks -- Edit bug report at https://bugs.php.net/bug.php?id=68927&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68927&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68927&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68927&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68927&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68927&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68927&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68927&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68927&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68927&r=support Expected behavior: https://bugs.php.net/fix.php?id=68927&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68927&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68927&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68927&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68927&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68927&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68927&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68927&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68927&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68927&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68927&r=mysqlcfg