node / TCG (qemu) issues

[fpapalardo]

Trying to send logs to cloudwatch logs it's not possible to connect to cloudwatch logs. I tried 2 well-known frameworks and also I created manual logs using aws js sdk and I could get these logs from them:

{ NetworkingError: The value "4294967295" is invalid for option "family"
    at lookup (dns.js:113:11)
    at net.js:979:5
    at defaultTriggerAsyncIdScope (internal/async_hooks.js:294:19)
    at lookupAndConnect (net.js:978:3)
    at TLSSocket.Socket.connect (net.js:913:5)
    at Object.connect (_tls_wrap.js:1248:12)
    at Agent.createConnection (https.js:119:22)
    at Agent.createSocket (_http_agent.js:227:26)
    at Agent.addRequest (_http_agent.js:185:10)
    at new ClientRequest (_http_client.js:261:16)
  message: 'The value "4294967295" is invalid for option "family"',
  code: 'NetworkingError',
  region: 'us-west-1',
  hostname: 'logs.us-west-1.amazonaws.com',
  retryable: true,
  time: 2019-10-31T04:10:42.607Z }

This would suggest that it's not possible to connect outside the running process, create any REST request

[eyberg]

do you have something I can toss to an engineer to repro? this looks like an overflow cause of your 4294967295

[eyberg]

this is prob a nanos issue that needs investigation

[eyberg]

nvr mind, was able to replicate, looking into it

➜  o  cat hi.js
const https = require('https');

https.get('https://api.nasa.gov/planetary/apod?api_key=DEMO_KEY', (resp) => {
  let data = '';

  // A chunk of data has been received.
  resp.on('data', (chunk) => {
    data += chunk;
  });

  // The whole response has been received. Print out the result.
  resp.on('end', () => {
    console.log(JSON.parse(data).explanation);
  });

}).on("error", (err) => {
  console.log("Error: " + err.message);
});
➜  o  ops load node_v11.5.0 -p 8083 -a hi.js
[node hi.js]
booting /Users/eyberg/.ops/images/node.img ...
assigned: 10.0.2.15
dns.js:113
    throw new ERR_INVALID_OPT_VALUE('family', family);
    ^

TypeError [ERR_INVALID_OPT_VALUE]: The value "4294967295" is invalid for option "family"
    at lookup (dns.js:113:11)
    at net.js:979:5
    at defaultTriggerAsyncIdScope (internal/async_hooks.js:294:19)
    at lookupAndConnect (net.js:978:3)
    at TLSSocket.Socket.connect (net.js:913:5)
    at Object.connect (_tls_wrap.js:1248:12)
    at Agent.createConnection (https.js:119:22)
    at Agent.createSocket (_http_agent.js:227:26)
    at Agent.addRequest (_http_agent.js:185:10)
    at new ClientRequest (_http_client.js:261:16)
exit status 3

[eyberg]

appears we might be hitting this -> nodejs/node#19348 as it works as expected on t2 (xen) but not local qemu

➜  t  cat hi.js
var http = require('http');
http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    a = undefined
    res.end((a >>> 0).toString(10));
}).listen(80, "0.0.0.0");
console.log('Server running at http://127.0.0.1:80/');

we might just monkey-patch node for now to work around this - still looking

[eyberg]

as mentioned in another tkt turning on hardware accel via '-x' gets past the tcg issue && also this particular pkg is missing libresolv which we can add w/the new node patch

[eyberg]

#407

[eyberg]

going to close this as we by default try to install latest qemu and warn the user if we find one that is too old causing this bug