AW: ModemManager[178]: <warn> Reloading stats failed: Couldn't get packet statistics: QMI protocol error (15): 'OutOfCall'

[Ralf Glaser]

Hi,

thanks for your fast response. I've upgraded to V1.16.8.

I also found the ID_MM_QMI_CONNECTION_STATUS_POLLING_ENABLE property. Would you recommend enabling it (aka are there interesting side-effects to expect)? If yes, is it possible to enable/disable this feature during runtime or shall i patch 77-mm-quectel-port-types.rules (we are using Quectel EC21)?

Best regards,
Ralf

________________________________
Von: Aleksander Morgado <aleksander at aleksander.es>
Gesendet: Dienstag, 27. Juli 2021 11:52
An: Ralf Glaser <glaser at iotmaxx.de>
Cc: modemmanager-devel at lists.freedesktop.org <modemmanager-devel at lists.freedesktop.org>
Betreff: Re: ModemManager[178]: <warn> Reloading stats failed: Couldn't get packet statistics: QMI protocol error (15): 'OutOfCall'

Hey,

> we are experiencing connection hangs without recovery (seems like a failed handover or similar) with the following log entry:
> ModemManager[178]: <warn>  Reloading stats failed: Couldn't get packet statistics: QMI protocol error (15): 'OutOfCall'
>
> There was a patch "bearer-qmi: detect disconnections when loading stats" proposed  byAleksander Morgado on Tue Sep 5 20:26:13 UTC 2017 but it doesn't seem to have been accepted...
>

I recall that patch, but I don't recall why it was not merged. I think
there was a good reason not to merge it though :)

> Has this been fixed in the meantime?
>
> We are currently using ModemManger 12.10.
>

There have been fixes after that, yes, a lot of them. I can point you
to one that was fixed in 1.14.0 that would show the exact same
symptoms you're seeing:
https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/155

The 1.12.x series is fully unsupported, the 1.14.x series still
receives some fixes in the mm-1-14 git branch but not new releases are
expected, the latest 1.16.x series is the currently supported one. And
1.18.0 will happen soon. I definitely suggest to upgrade to something
newer, 1.16.x if possible.

--
Aleksander
https://aleksander.es
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