ModemManager watching suspend/resume events

[Florian Klink]

Am 12.01.2015 um 11:33 schrieb Aleksander Morgado:
> On Mon, Jan 12, 2015 at 10:50 AM, Florian Klink <flokli at flokli.de> wrote:
>> No, this doesn't work. It seems like the communication with the modem
>> gets out of sync, as I see a lot of "No transaction matched in received
>> message" messages after restarting ModemManager.
>>
>> I attached a log of
>>
>> - suspending while being connected via the modem
>> - resuming from suspended state
>> - trying to connect
>> - restarting ModemManager
> 
> 
> Your problem is a different one: once resuming from suspend, the MBIM
> session is still open (we do get indications) but the modem doesn't
> reply to any of our requests, and during that period MM ends up
> segfaulting and restarted.
> 
> Could you retry with libmbim git master and ModemManager git master?
> 

I tried the same with git ModemManager and libmbim.

However, I can still reproduce the issues.

Attached a new log. I did the following:

13:25:00 initiate connection
13:25:03 connection established
13:25:13 suspend
13:25:29 resume
13:25:41 initiate connection via nm-applet
13:26:41 timeout (modem still visible)
13:27:06 restart ModemManager
13:27:26 restart ModemManager done (modem now invisible)
13:27:47 unbind, sleep 1, rebind modem
13:28:00 connection established


Florian
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