Lighttpd

PHP via fastcgi stops responding sometimes in lighttpd v1.4.8. It can be replayed like belows:

php -i > test.php
ab -n 5000 -c 200 http://localhost/test.php

If you turn fastcgi.debug = 1, "unexpected end-of-file (perhaps the fastcgi process died)" will be reported.

I checked mod_fastcgi.c and found that fcgi_demux_response() process FIONREAD wrong. Line 2262 should return 0 instead of log_error_write and return -1. I have tested by myself and it works.

/* init read-buffer */

if (toread > 0) {
    ...
} else {
    log_error_write(srv, __FILE__, __LINE__, "ssdsdsd",
    "unexpected end-of-file (perhaps the fastcgi process died):",
    ...
}

/* init read-buffer */

if (toread > 0) {
    ...
} else {
    return 0;
}

-- singnoo