When running node on windows with php's proc_open() it crashes with Unknown system errno 10106

[Shyru]

We have a small wrapper script (written in php) that starts node with a given javascript file.
To read and write to nodes stdin/stdout we use proc_open() of php. When doing this, node crashes with this exception:

node.
        throw e; // process.nextTick error, or 'error' event on first tick
              ^
Error: listen Unknown system errno 10106
    at errnoException (net.)
    at Array.<anonymous> (net.)
    at EventEmitter._tickCallback (node.)

Our node server uses faye () to listen on port 8000 for incoming requests.
Fore reference this is the script we are trying to execute:

console.log("startup");
var http = require('http'),
    faye = require('faye');


var bayeux = new faye.NodeAdapter({mount: '/faye', timeout: 45});

bayeux.listen(8000);
console.log("running");

Note: I dont get the output 'startup' or 'running' from inside php.

Important: When running node from commandline with this script, everything works perfectly! Its just that starting it from php with proc_open() makes it go crazy!
Any idea what could be the cause of this?

Edit: I forgot to say this is using current node 0.5.10, but the error existed already in previous node versions, but the crashes where all different, but it never worked. :-)

[bnoordhuis]

Closing this for now, we don't support third-party modules. Can you strace or dtrace it? If this is a bug in Node itself, I'll be happy to fix it.

[Shyru]

Unfortunatly this has nothing to do with faye.
Running this minimal example causes the same error.

var http = require('http');

http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(1337, "127.0.0.1");
console.log('Server running at http://127.0.0.1:1337/');

How can I provide more debug information on windows?

[bnoordhuis]

Reopening. @igorzi and @piscisaureus, can you look into this?

[igorzi]

@Shyru most likely this is due PHP's proc_open() not setting node's systemroot and systemdrive env variables (which are needed to initialize winsock). See this commit in libuv: joyent/libuv@3409c9b. We make sure to set those variables for spawn to fix this issue.

[ry]

Do this in the C++ code:
https://github.com/joyent/node/blob/c83dda89a4bc12925e2dd83db9ef978fe4efae12/src/process_wrap.cc#L117-128
or in JS code just before the spawn:
https://github.com/joyent/node/blob/c83dda89a4bc12925e2dd83db9ef978fe4efae12/lib/child_process.js#L402

We should have a windows specific test which spawns a child and checks that systemroot and systemdrive are set

[Shyru]

I can confirm that setting up the environment correctly solves the problem. In my particular case php's option variables_order was not set to initialize $_ENV. So I passed an empty array of env variables to proc_open. After fixing this it works like intended.
Neverthelesse it would be great if node would work under windows if these are not set, as you suggested.

[stollr]

@igorzi and @ry
is it possible to throw an error to STDERR if the SystemRoot or SystemDrive env variable has not been set? Otherwise it is really hard to find the reason why node exits. I had the same problem like @Shyru and needed several hours to locate the problem :-(

[jasnell]

Closing this for now as there does not appear to be anything to do at this point. Can reopen later if new information is received.