[Ovmsdev] Random Crashes

Mark Webb-Johnson mark at webb-johnson.net
Sat Nov 18 11:27:33 HKT 2017


I think I’ve found the issue (or at least one of them). Just caught a similar crash here.

The CREG (network registration status went 5->2 (roaming -> searching), but the simcom driver didn’t handle that. It should have torn down the PPP. Can simply repeat by unplugging the antenna.

I’ll try to look at some edge cases today, and improve the handling.

Regards, Mark.

> On 18 Nov 2017, at 9:57 AM, Tom Parker <tom at carrott.org> wrote:
> Hi,
> I've got the my v3 OVMS plugged into a car using the hologram sim and cell network for connectivity. I'm updating the odometer metric with the monotonic metric and made the attached graph. I'm assuming the ovms has rebooted each time the graph goes back to zero. The actual connectivity seems pretty good as there aren't many jumps in the graph where data was not being updated on the server, the most obvious one being just before 4am.
> I think the y axis might be in tenths of a second, as it's only been sending this data for a little less than 24 hours, which is only 86,000 seconds or so.
> Is it possible to write the logs to an SD Card so when it crashes I can inspect what happened?
> Otherwise I'll leave it on my desk plugged into my laptop for a while and see if it reproduces there -- the only difference would be the power supply so I'm guessing it will.
> thanks.
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