[Telit LE910C1-EU] ModemManager crashes when establishing online connection

Fri May 5 15:40:57 UTC 2023

Hi, thanks for your answer.
Explicitly specifying the ip-type helps for me.
Since you mentioned main, I checked the version I'm using (1.18.12) and 
noticed it isn't the latest, so I will try a newer version, and see what 
happens.

BR, Christian

Am 04.05.23 um 09:00 schrieb Daniele Palmas:
> Hello,
> 
> Il giorno mer 3 mag 2023 alle ore 15:12 Christian Schneider
> <cschneider at radiodata.biz> ha scritto:
>>
>> Hello,
>> I have a Telit LE910C1-EU modem. It is recognized and calls/SMS work,
>> but when I establish an online connection, eg. with
>> mmcli -m 0 --simple-connect "apn=internet.telekom"
>> ModemManager crashes. The error message including a few lines before are:
>>
>> ModemManager[2838]: <debug> [modem0] unhandled PDP type in CGDCONT=?
>> reply: 'PPP'
>> ModemManager[2838]: <debug> [modem0] unknown +CGDCONT format details for
>> PDP type 'none', using defaults: minimum 1, maximum 2147483646
>> ModemManager[2838]: <debug> [modem0] context definition format: minimum
>> 1, maximum 2147483646
>> ModemManager[2838]: <debug> [modem0] set profile state (2/8): list before
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] device open count is 5
>> (open)
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] device open count is 4
>> (close)
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] --> 'AT#PSNT?<CR>'
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] <-- '<CR><LF>#PSNT:
>> 0,4<CR><LF><CR><LF>OK<CR><LF>'
>> ModemManager[2838]: <debug> [modem0] access technology changed (unknown
>> -> lte)
>> ModemManager[2838]: <debug> [modem0] periodic signal quality and access
>> technology checks scheduled
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] device open count is 3
>> (close)
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] --> 'AT+CGDCONT?<CR>'
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] <-- '<CR><LF>+CGDCONT:
>> 1,"IPV4V6","","",0,0,0,0<CR><LF>+CGDCONT:
>> 2,"IPV4V6","ims","",0,0,0,0<CR><LF>+CGDCONT:
>> 3,"IPV4V6","sos","",0,0,0,1<CR><LF><CR><LF>OK<CR><LF>'
>> ModemManager[2838]: <debug> [modem0] set profile state (3/8): select
>> profile (best)
>> ModemManager[2838]: <debug> [modem0] found unused profile 4 (<2147483646)
>> ModemManager[2838]: <debug> [modem0] set profile state (4/8): check
>> activated profile
>> ModemManager[2838]: <debug> [modem0] checking if profile with id '4' is
>> already activated...
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] device open count is 4
>> (open)
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] device open count is 3
>> (close)
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] --> 'AT+CGACT?<CR>'
>> ModemManager[2838]: <debug> [modem0/ttyUSB2/at] <-- '<CR><LF>+CGACT:
>> 1,1<CR><LF>+CGACT: 2,0<CR><LF>+CGACT: 3,0<CR><LF><CR><LF>OK<CR><LF>'
>> ModemManager[2838]: <debug> [modem0] profile '4' is not activated:
>> Profile '4' not found in CGACT? response
>> ModemManager[2838]: <debug> [modem0] set profile state (6/8): store profile
>> **
>> ERROR:../../ModemManager-1.18.12/src/mm-broadband-modem.c:10677:modem_3gpp_profile_manager_store_profile:
>> assertion failed: (ip_type != MM_BEARER_IP_FAMILY_NONE)
>> Aborted
>>
>> mm seems to have trouble with this Profile stuff, but not sure if this
>> is directly related to the crash.
> 
> With main I can't replicate the issue: when not declaring the ip-type,
> MM by default is using "IP", e.g.
> 
> $ sudo mmcli -m 0 --simple-connect "apn=web.omnitel.it"
> successfully connected the modem
> 
> ModemManager[725461]: <dbg> [1683183155.578330] [modem0] set profile
> state (2/8): list before
> ModemManager[725461]: <dbg> [1683183155.578357] [ttyUSB1/at] device
> open count is 4 (open)
> ModemManager[725461]: <dbg> [1683183155.578391] [ttyUSB1/at] device
> open count is 3 (close)
> ModemManager[725461]: <dbg> [1683183155.578428] [ttyUSB1/at] -->
> 'AT+CGDCONT?<CR>'
> ModemManager[725461]: <dbg> [1683183155.619178] [ttyUSB1/at] <--
> '<CR><LF>+CGDCONT: 1,"IPV4V6","","",0,0,0,0<CR><LF>+CGDCONT:
> 2,"IP","mobile.vodafone.it","",0,0,0,0<CR><LF><CR><LF>OK<CR><LF>'
> ModemManager[725461]: <dbg> [1683183155.619435] [modem0] set profile
> state (3/8): select profile (best)
> ModemManager[725461]: <dbg> [1683183155.619479] [modem0] found unused
> profile 3 (<24)
> ModemManager[725461]: <dbg> [1683183155.619500] [modem0] set profile
> state (4/8): check activated profile
> ModemManager[725461]: <dbg> [1683183155.619542] [modem0] checking if
> profile with id '3' is already activated...
> ModemManager[725461]: <dbg> [1683183155.619583] [ttyUSB1/at] device
> open count is 4 (open)
> ModemManager[725461]: <dbg> [1683183155.619636] [ttyUSB1/at] device
> open count is 3 (close)
> ModemManager[725461]: <dbg> [1683183155.619690] [ttyUSB1/at] --> 'AT+CGACT?<CR>'
> ModemManager[725461]: <dbg> [1683183155.660510] [ttyUSB1/at] <--
> '<CR><LF>+CGACT: 1,1<CR><LF>+CGACT: 2,0<CR><LF><CR><LF>OK<CR><LF>'
> ModemManager[725461]: <dbg> [1683183155.660768] [modem0] profile '-1'
> is not activated: Profile '3' not found in CGACT? response
> ModemManager[725461]: <dbg> [1683183155.660810] [modem0] set profile
> state (6/8): store profile
> ModemManager[725461]: <dbg> [1683183155.660843] [modem0] storing
> profile '3': apn 'web.omnitel.it', ip type 'ipv4'
> ModemManager[725461]: <dbg> [1683183155.660893] [ttyUSB1/at] device
> open count is 4 (open)
> ModemManager[725461]: <dbg> [1683183155.660948] [ttyUSB1/at] device
> open count is 3 (close)
> ModemManager[725461]: <dbg> [1683183155.661010] [ttyUSB1/at] -->
> 'AT+CGDCONT=3,"IP","web.omnitel.it"<CR>'
> ModemManager[725461]: <dbg> [1683183155.837506] [ttyUSB1/at] <--
> '<CR><LF>OK<CR><LF>'
> ModemManager[725461]: <dbg> [1683183155.837684] [modem0] stored profile '-1'
> ModemManager[725461]: <dbg> [1683183155.837721] [modem0] set profile
> state (7/8): list after
> ModemManager[725461]: <dbg> [1683183155.837782] [ttyUSB1/at] device
> open count is 4 (open)
> ModemManager[725461]: <dbg> [1683183155.837842] [ttyUSB1/at] device
> open count is 3 (close)
> ModemManager[725461]: <dbg> [1683183155.837903] [ttyUSB1/at] -->
> 'AT+CGDCONT?<CR>'
> ModemManager[725461]: <dbg> [1683183155.879619] [ttyUSB1/at] <--
> '<CR><LF>+CGDCONT: 1,"IPV4V6","","",0,0,0,0<CR><LF>+CGDCONT:
> 2,"IP","mobile.vodafone.it","",0,0,0,0<CR><LF>+CGDCONT:
> 3,"IP","web.omnitel.it","",0,0,0,0<CR><LF><CR><LF>OK<CR><LF>'
> ModemManager[725461]: <dbg> [1683183155.879921] [modem0] set profile
> state (8/8): all done
> ModemManager[725461]: <dbg> [1683183155.879983] [ttyUSB1/at] device
> open count is 4 (open)
> ModemManager[725461]: <dbg> [1683183155.880009] [modem0/bearer0]
> connection through a plain serial AT port: ttyUSB1
> ModemManager[725461]: <dbg> [1683183155.880055] [ttyUSB1/at] device
> open count is 5 (open)
> ModemManager[725461]: <dbg> [1683183155.880135] [ttyUSB1/at] device
> open count is 4 (close)
> ModemManager[725461]: <dbg> [1683183155.880211] [ttyUSB1/at] -->
> 'ATD*99***3#<CR>'
> ModemManager[725461]: <dbg> [1683183155.924273] [ttyUSB1/at] <--
> '<CR><LF>CONNECT 150000000<CR><LF>~\255}#\192!}!P} }9}"}&} } } }
> }#}%\194#}%}%}&%\165\196\195}'}"}(}"a\135~'
> 
> You can try also to force the ip-type, e.g.
> 
> $ sudo mmcli -m 0 --simple-connect "apn=web.omnitel.it,ip-type=IPV4"
> successfully connected the modem
> 
> Regards,
> Daniele
> 
>> Full log is attached.
>>
>> Is this a fault in ModemManager, or is the modem doing weird stuff?
>> Tracing through the output and even running mm in a debugger didn't help
>> finding the route cause of the issue. I could only see, that the ip_type
>> is indeed set to MM_BEARER_IP_FAMILY_NONE (obviously), but I couldn't
>> find, where this is set/where this comes from.
>>
>> Can anybody shed some light on this?
>>
>> BR,
>> Christian
>>
>> --
>> ---------------------------------------------------------------------
>> RADIODATA GmbH
>> Newtonstr. 18
>> 12489 Berlin
>> Germany
>>
>> Homepage:              www.radiodata.biz
>>
>> USt_IdNr.:             DE 195663499
>> WEEE-Reg.-Nr.:         DE 63967380
>>
>> Sitz der Gesellschaft: Berlin
>> Registergericht:       Amtsgericht Charlottenburg HRB  Nr.: 67865
>> Geschäftsführer:       Hans-Joachim Langermann, Malte Langermann

-- 
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RADIODATA GmbH
Newtonstr. 18
12489 Berlin
Germany

Homepage:              www.radiodata.biz

USt_IdNr.:             DE 195663499
WEEE-Reg.-Nr.:         DE 63967380

Sitz der Gesellschaft: Berlin
Registergericht:       Amtsgericht Charlottenburg HRB  Nr.: 67865
Geschäftsführer:       Hans-Joachim Langermann, Malte Langermann