Hi Aleksander

Thanks ! Let me increase the enable timeout value.

Best Regards
Girish

On Sat, Sep 26, 2020 at 2:14 AM Aleksander Morgado
<aleksan...@aleksander.es> wrote:
>
> Hey Girish,
>
>>
>> I am on MM 1.14.2 running on a Cinterion PLS8x modem.[yocto
>> distribution(thud) kernel 4.14]
>> I use high level MM APIs in my code. On some SIMs the
>> mm_modem_enable() (async version) times out because during the enable
>> MM seems to be processing 160 odd SMS's .
>>
>> Two questions:
>> 1. mm_modem_enable() times out , I am guessing because of the flood of
>> SMS coming in.
>>    But the modem state eventually moves to enabled. So the error is
>> harmless in this case ?
>
>
> Yes. The mm_modem_enable() timeout means *only* that you waited for 30s and 
> you didn't get a reply. If you check the modem state after that time and 
> eventually it moves to enabled, it means the enabling phase succeeded. But of 
> course, the correct way to handle this would be to avoid having the timeout, 
> which you can do by tweaking the default DBus timeout before calling 
> mm_modem_enable(), e.g. as in this case to increase it to 120s:
>
> g_dbus_proxy_set_default_timeout (G_DBUS_PROXY (modem), 120000);
> mm_modem_enable (modem, ...);
>
> The default of 30s is just some sane value, but it's understandable that some 
> operations may take longer. I believe it's the first time I see a timeout in 
> the enabling phase though, usually this default proxy timeout is changed for 
> very long async operations like the 3GPP network scan or the actual 
> connection attempt.
>
>
>>
>> 2. How can we suppress these SMS's ? I do see AT+CNMI , perhaps use
>> these to suppress the URCs ?
>>
>
> My suggestion would be to read them all, and then, if they're not needed, 
> remove them using the Messaging interface (each SMS is exposed as a DBus 
> object). Also, the log shows that these are not URCs (modem indications), the 
> long operation reading all SMS messages is actually the output of AT+CMGL=4.
>
> It is interesting, though, how long it takes to read and process each SMS 
> message: 10s for reading and 40s for parsing and processing all 254 PDUs. 
> That's a lot! I wonder if there's some part of the logic that is considerably 
> slower than it should be.
>
> Anyway, if you don't want to keep all SMS messages around, it would be good 
> to clean them up periodically.
>
> --
> Aleksander
> https://aleksander.es



-- 
--
Girish Mahadevan
Firmware Engineer
10368 Westmoor Drive | Westminster, CO 80021
_______________________________________________
ModemManager-devel mailing list
ModemManager-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel

Reply via email to