<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Last week’s 3.1.009 issue with Tesla Roadsters was interesting. Looking at the car I saw with the problem, it was booting, crashing when the vehicle module received a certain CAN bus message (triggering the issue), and rebooting. It would do this 5 times, until it his the AUTO_INIT_INHIBIT_CRASHCOUNT count, and then AutoInit inhibit would kick in, and it would end up sitting idle with nothing loaded (and no network connection). The approach worked very well, and prevented an endless reboot loop.<div class=""><br class=""><div class="">However, we ended up with a car unable to connect to the network, and requiring a console cable and laptop to recover. I’ve been thinking about bluetooth (which is intended to provide a smartphone connection irrespective of wifi configuration), how that might work with a completely unconfigured module (for initial configuration), and I can suggest a workaround to try to improve this…</div></div><div class=""><br class=""></div><div class="">At the moment, the order of autoinit is:</div><div class=""><br class=""></div><div class=""><ol class="MailOutline"><li class="">External 12V</li><li class="">Wifi</li><li class="">Modem SIMCOM</li><li class="">Vehicle</li><li class="">OBD2ECU</li><li class="">Server V2</li><li class="">Server V3</li></ol></div><div class=""><br class=""></div><div class="">None of those run if the early crash count > AUTO_INIT_INHIBIT_CRASHCOUNT (coded as a constant 5).</div><div class=""><br class=""></div><div class="">My suggestion is to change this as follows:</div><div class=""><br class=""></div><div class=""><ol class="MailOutline"><li class="">Wifi</li><li class="">Bluetooth</li><li class="">Server V2</li><li class="">Server V3</li><li class="">Modem SIMCOM</li><li class="">External 12V</li><li class="">Vehicle</li><li class="">ODB2ECU</li></ol></div><div class=""><br class=""></div><div class="">But also to change that logic that:</div><div class=""><ul class="MailOutline"><li class="">#8 will start if early crash count > AUTO_INIT_INHIBIT_CRASHCOUNT</li><li class="">#7 will start if early crash count > AUTO_INIT_INHIBIT_CRASHCOUNT+1</li><li class="">#6 will start if early crash count > AUTO_INIT_INHIBIT_CRASHCOUNT+2</li><li class="">etc.</li></ul></div><div class=""><br class=""></div><div class="">This will mean that once we hit the AUTO_INIT_INHIBIT_CRASHCOUNT limit, we turn off the least required module (OBD2ECU), then continue to see if that solves the problem. If not (ie; we crash and reboot), then we try turning off the Vehicle module and OBD2ECU, then continue to see if that solves the problem. etc.</div><div class=""><br class=""></div><div class="">In the example case of the Tesla Roadster vehicle module causing the issue, this revised approach would leave us up and running with Wifi and a Server Connection (but no vehicle data). Checking the module would identify the problem quite quickly (and remotely). Starting the vehicle module manually would presumably result in a crash and we would pretty quickly get an idea of the cause (especially if we added a command to show the status of AutoInit, what was started, and what wasn’t because it is causing a crash). I think we could even issue an Alert notification in the case where autoinit recovered after inhibiting certain modules (but not all).</div><div class=""><br class=""></div><div class="">The disadvantage is that we would crash more (up to 13 times, vs 5) in the case the system is badly messed up.</div><div class=""><br class=""></div><div class="">What do people think? Does this make sense?</div><div class=""><br class=""></div><div class="">Regards, Mark.</div><div class=""><br class=""></div></body></html>