Description:
------------
We use PHP 4.3.2 + FastCGI + Apache/mod_fcgi. The PHP fastcgi server is started in our setup with 8 preforked php-servers,
so after a restart the process tree will look like:
\_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2

so far it's ok. when I request for a non-existant script, I get the error "No input file specified.". That's ok too. But after that, one server process died:
\_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2
   |   \_ /usr/bin/php-fcgi-4.3.2

After requesting a non-existant script 8 times all servers are gone, only the master server process remains:
\_ /usr/bin/php-fcgi-4.3.2

I checked the file sapi/cgi/cgi_main.c and it seems the error is in line 1473:
        if (retval == FAILURE && file_handle.handle.fp == NULL) {
            SG(sapi_headers).http_response_code = 404;
            PUTS("No input file specified.\n");
            php_request_shutdown((void *) 0);
            php_module_shutdown(TSRMLS_C);
            return FAILURE;
        }

IMO this should be:
        if (retval == FAILURE && file_handle.handle.fp == NULL) {
            SG(sapi_headers).http_response_code = 404;
            PUTS("No input file specified.\n");
#if PHP_FASTCGI
            continue; 
#endif
            php_request_shutdown((void *) 0);
            php_module_shutdown(TSRMLS_C);
            return FAILURE;
        }

It seems to work fine, but I'm not really sure if this is right.