[Freeswitch-users] mod_gsmopen - deadlock tty
Giovanni Maruzzelli
gmaruzz at gmail.com
Fri Sep 25 20:41:40 MSD 2015
for plugging and unplugging modems, that's a very difficult thing to
manage, this is the best I can come out with (and probably does not work in
freebsd):
http://wiki.freeswitch.org/wiki/GSMopen#IMEI_and_IMSI_automatic_device_discovery_.28only_on_Linux.29_2
you're welcome to find a similar mechanism, and file a jira with a pull
request, so it will be inserted in manline.
If your modifications only apply to freebsd, please use #ifdefs, so it
still continue to compile and work in Linux.
-giovanni
Sincerely,
Giovanni Maruzzelli
Cell : +39-347-2665618
On Fri, Sep 25, 2015 at 6:24 PM, Luiz Fernando Softov <
fernando at softov.com.br> wrote:
> I'm using a USB with power supply.
>
> But sometimes it's just happen. Sometimes user remove and plug modem again.
>
> I can't use Debian, because our system depends of FreeBSD, and we have a
> lot of source (daemons) running, based, on that platform. And we use
> kqueue, I think Debian don't have kqueue, it's like epool, but better, much
> better.
>
> Anyway, I don't That it's a kernel problem, because, since I have another
> daemon, attached in ttyx.0 (mod_gsmopen attach to ttyx.3), and when modem
> power off or "reset", only ttyx.3 still locked.
>
> I'm trying to read the source to figure what's happening, but it's hard to
> read, not because the source is difficult, but because isn't organized.
>
> I'm thinking in rewrite the module, but if in future someone change
> something in original module I will need to check my source.
> There is another thing, I don't know how things like apr_thread works,
> and what functions like switch_sleep(1000000) do and why using that.
>
> Today I make some alterations where the module make a lock, LOKKA, there
> is some functions who don't have unlock, and another who only have unlock,
> sometimes two unlocks. So I will wait to see what will happen.
>
> Now, here it's 3:00 am, and I'm going to sleep, almost 19 hours awake up,
> trying to debug this module and another things.
>
>
> Maybe you or someone have a time, to chat, or reply some e-mails, or maybe
> here, to explain some questions about the source (module)?
>
> There's some lines marked with TODO, why?
> And there is another version of this module?
> Which the maximum number of modems that you already usage?
>
> 2015-09-25 7:53 GMT-04:00 Giovanni Maruzzelli <gmaruzz at gmail.com>:
>
>> if you found problems, please open a jira issue, with all info to
>> replicate the problem, as explained in gsmopen page.
>>
>> It would be useful for us developers, and to me personally, being the
>> person in charge of gsmopen.
>>
>> Thanks in advance,
>>
>> -giovanni
>>
>> Sincerely,
>>
>> Giovanni Maruzzelli
>> Cell : +39-347-2665618
>>
>> On Fri, Sep 25, 2015 at 1:44 PM, Shabbir abbasi <
>> shabbirabbasi92 at gmail.com> wrote:
>>
>>> mod_gsmopen needs more development work, i have tested it sometimes
>>> ago and found it is not useable , so now i am using asterisk with
>>> chan_dongle better then gsmopen without usb HUB
>>>
>>> On Fri, Sep 25, 2015 at 11:11 AM, Giovanni Maruzzelli <gmaruzz at gmail.com
>>> > wrote:
>>>
>>>> This seems to be a kernel problem.
>>>>
>>>> To have the most success chances: use a USB hub with power supply (eg,
>>>> a USB hub that get electrical power from the wall socket).
>>>> Also, use the reference.platform, debian 8 jessie, instead of freebsd.
>>>>
>>>> -goovanni
>>>>
>>>> sent from my mobile,
>>>> Giovanni Maruzzelli
>>>> cell: +39 347 266 56 18
>>>> On Sep 25, 2015 7:19 AM, "Luiz Fernando Softov" <fernando at softov.com.br>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I'm using freeswitch 1.15 in Freebsd 10.1, with mod_gsmopen
>>>>>
>>>>> FreeSWITCH Version 1.5.15b+git~20150407T231134Z~d55c4a053b~64bit (git
>>>>> d55c4a0 2015-04-07 23:11:34Z 64bit), whats happen, its the same with
>>>>> another versions like, 1.6, 1.4.19, etc
>>>>>
>>>>> After sometime running freeswitch, i have this TTYs.
>>>>>
>>>>> crw------- 1 root wheel 0x8e Sep 24 15:30 ttyU1.3
>>>>> crw------- 1 root wheel 0x8f Sep 24 15:30 ttyU1.3.init
>>>>> crw------- 1 root wheel 0x90 Sep 24 15:30 ttyU1.3.lock
>>>>> crw------- 1 root wheel 0x8e Sep 24 15:30 ttyU2.3
>>>>> crw------- 1 root wheel 0x8f Sep 24 15:30 ttyU2.3.init
>>>>> crw------- 1 root wheel 0x90 Sep 24 15:30 ttyU2.3.lock
>>>>> crw------- 1 root wheel 0x8e Sep 24 15:30 ttyU3.3
>>>>> crw------- 1 root wheel 0x8f Sep 24 15:30 ttyU3.3.init
>>>>> crw------- 1 root wheel 0x90 Sep 24 15:30 ttyU3.3.lock
>>>>> crw------- 1 root wheel 0x76 Sep 25 00:46 ttyU4.0
>>>>> crw------- 1 root wheel 0x77 Sep 24 22:28 ttyU4.0.init
>>>>> crw------- 1 root wheel 0x78 Sep 24 22:28 ttyU4.0.lock
>>>>> crw------- 1 root wheel 0x7c Sep 24 22:28 ttyU4.1
>>>>> crw------- 1 root wheel 0x7d Sep 24 22:28 ttyU4.1.init
>>>>> crw------- 1 root wheel 0x7e Sep 24 22:28 ttyU4.1.lock
>>>>> crw------- 1 root wheel 0x82 Sep 24 22:28 ttyU4.2
>>>>> crw------- 1 root wheel 0x83 Sep 24 22:28 ttyU4.2.init
>>>>> crw------- 1 root wheel 0x84 Sep 24 22:28 ttyU4.2.lock
>>>>> crw------- 1 root wheel 0x8e Sep 24 22:28 ttyU4.3
>>>>> crw------- 1 root wheel 0x8f Sep 24 22:28 ttyU4.3.init
>>>>> crw------- 1 root wheel 0x90 Sep 24 22:28 ttyU4.3.lock
>>>>> crw------- 1 root wheel 0xa8 Sep 25 00:46 ttyU5.0
>>>>> crw------- 1 root wheel 0xa9 Sep 24 22:28 ttyU5.0.init
>>>>> crw------- 1 root wheel 0xaa Sep 24 22:28 ttyU5.0.lock
>>>>> crw------- 1 root wheel 0xae Sep 24 22:28 ttyU5.1
>>>>> crw------- 1 root wheel 0xaf Sep 24 22:28 ttyU5.1.init
>>>>> crw------- 1 root wheel 0xb6 Sep 24 22:28 ttyU5.1.lock
>>>>> crw------- 1 root wheel 0xba Sep 24 22:28 ttyU5.2
>>>>> crw------- 1 root wheel 0xbb Sep 24 22:28 ttyU5.2.init
>>>>> crw------- 1 root wheel 0xbc Sep 24 22:28 ttyU5.2.lock
>>>>> crw------- 1 root wheel 0xc0 Sep 24 22:28 ttyU5.3
>>>>> crw------- 1 root wheel 0xc1 Sep 24 22:28 ttyU5.3.init
>>>>> crw------- 1 root wheel 0xc2 Sep 24 22:28 ttyU5.3.lock
>>>>>
>>>>> As you can see, ttyU1.3, ttyU2.3, ttyU3.3 are USB deadlocks
>>>>>
>>>>> I try to unload mod_gsmopen, but i receive a message that is in use
>>>>> so i kill freeswitch, then ttyU1.3, ttyU2.3, ttyU3.3, are free and
>>>>> disappear (as well .init and .lock)
>>>>>
>>>>> I try to figure out whats happening, with logs, alarms, but i can't.
>>>>> Someone have the same problem, or know the solution?
>>>>>
>>>>>
>>>>> ps.
>>>>> Reading the list, i realize that few members use the module, or don't
>>>>> have problems.
>>>>> If i am correct, is there any other way to use GSM modems or GSM,
>>>>> which is low cost?
>>>>> Is there anyone who can guide me in some things about the code or tips?
>>>>>
>>>>> ps 2.
>>>>> sorry about my english
>>>>>
>>>>> --
>>>>> Luiz Fernando Softov
>>>>> http://www.softov.com.br
>>>>> fernando at softov.com.br
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
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>>>>>
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>>>>>
>>>>
>>>>
>>>> _________________________________________________________________________
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>>>>
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>>>>
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>>>
>>>
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>>> http://www.freeswitchsolutions.com
>>>
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>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
>> FreeSWITCH-users mailing list
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>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
>> http://www.freeswitch.org
>>
>
>
>
> --
> Luiz Fernando Softov
> http://www.softov.com.br
> fernando at softov.com.br
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
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> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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