[Ovmsdev] Modem link-drop crash

[Mark Webb-Johnson]

Simplest to just clone our version. You can setup ‘remotes’ to track both, but you would normally only need that if you were making changes to ours and trying to merge between the two.

Regards, Mark

> On 24 Dec 2017, at 3:20 PM, Greg D. <gregd2350 at gmail.com> wrote:
> 
> Hi Mark,
> 
> Um, I'm still on the original ESP IDF 2.1 branch from Expresif from when I first got going, not our clone branch.  When did they apply the patch (i.e. do I already have it)?  I'm assuming not.
> 
> I'm heading out of town for a few days, so probably won't be able to switch branches until mid-late next week.  Could you remind me how to switch IDF branches, for eggnog mitigation purposes?  Do I need to remove the old ESP code and fetch / unpack the new, or is it a simple matter of a git command to a different github location?  It was a while ago that I set this up.
> 
> Thanks, and Happy Holidays, all,
> 
> Greg
> 
> 
> Mark Webb-Johnson wrote:
>> I found this patch from Espressif:
>> 
>> https://github.com/espressif/esp-idf/pull/1100/commits/6dd48547adbdaf89e43b680dc027e5aa786d9c0e <https://github.com/espressif/esp-idf/pull/1100/commits/6dd48547adbdaf89e43b680dc027e5aa786d9c0e>
>> 
>> They had only applied it to ‘master’, and not the ‘2.1’ branch we use. It seems to resolve the problem.
>> 
>> I also made some changes to the ovms_server_v2 to try to tear down the connection _before_ the ppp link goes down (but I now think these are unnecessary, although probably beneficial).
>> 
>> Can you guys try updating both your ESP IDF (based on open vehicles 2.1 repo) and ovms v3 firmware. See if it is more reliable? I will leave mine running now, to see if there is any improvement for long-lived connections.
>> 
>> Regards, Mark.
>> 
>>> On 19 Dec 2017, at 5:14 AM, Greg D. <gregd2350 at gmail.com <mailto:gregd2350 at gmail.com>> wrote:
>>> 
>>> Hi folks,
>>> 
>>> I left my module running with the modem connected (WiFi client off) for
>>> a couple of days.  V2 server configured and connected, but the phone
>>> client was not running.  The module was sitting on my desk (not in a
>>> car), powered from the high-power USB port on my laptop.  It was
>>> blinking happily last night when I went to bed, but dark this morning. 
>>> Apparently had crashed and rebooted during the night. 
>>> 
>>> Here's the trace-back from the screen. Looks like a link drop was the
>>> trigger, or perhaps the result of something else.
>>> 
>>> Hope this helps,
>>> 
>>> Greg
> 
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