Reloading stats failed: QMI operation failed: Transaction timed out

[ratnavel]

The issue seems to be happening sporadically.


*WARNING: CPU: 1 PID: 0 at /linux-4.10.0/net/sched/sch_generic.c:316
dev_watchdog+0x22c/0x230NETDEV WATCHDOG: wwp0s (qmi_wwan): transmit queue 0
timed out*

My current issue is somewhat similar to this one where the transmit queue
is timing out ( qmi_wwan)
https://lists.freedesktop.org/archives/libqmi-devel/2015-October/001310.html


I will try out with *1.12.x *and check.

Thanks,
Ratnavel


On Mon, Jul 13, 2020 at 8:39 PM Aleksander Morgado <aleksander at aleksander.es>
wrote:

> Hey,
>
> >
> > ModemManager - 1.10.8 ( Ubuntu 16.06.4)  running on a Sierra Wireless
> EM74xx modem
> >
> > Couldn't load extended signal information: No way to load extended
> signal information
> > ModemManager[1222]: <warn>  Couldn't load extended signal information:
> Couldn't peek QMI port
> > ModemManager[1222]: <warn>  Reloading stats failed: QMI operation
> failed: Transaction timed out
> >
> > After this error, the ModemManager doesn't recover until a modem reset
> is performed. The modem is in a kind of locked state.
> >
> > The IP is still existing and restarting the ModemManager or the system
> is not helping out.
> >
> > What does the above error mean and is Modem Reset the only option to
> bring the modem out of this state ?
> >
>
> The above error means that the query to reload statistics didn't
> finish properly because the response from the modem was not received.
> That, by itself, may not be a problem, but what you're experiencing
> surely seems like a problem in the QMI communication overall. Without
> a ModemManager debug log it's hard to say what the actual problem is,
> though.
>
> My suggestion is to upgrade ModemManager to at least 1.12.x and retry
> running the daemon with --debug. You can use my 16.04 PPA here, which
> doesn't have the latest MM version, but at least is newer than the one
> you're using:
> https://launchpad.net/~aleksander-m/+archive/ubuntu/modemmanager-xenial
>
>
> --
> Aleksander
> https://aleksander.es
>
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