When you get more info, open a new, specific thread.

I'm sure many persons will find it of interest.

-giovanni

Sent from Mobile

Giovanni Maruzzelli
+39 347 266 56 18

On Sep 29, 2014 2:14 PM, "Daniel Ivanov" <sertys@gmail.com> wrote:

I would rather not hijack this thread with rpi specific issues. I will investigate further as from tomorrow, truth is panics started happening since i updated to the latest kern & picode.

On Mon, Sep 29, 2014 at 2:02 PM, Giovanni Maruzzelli <gmaruzz@gmail.com> wrote:

Kernel panics have probably to do with drivers, udev and kernel versions...

What distro, kernel, drivers, udev, etc uses when successful and when panics?

Please you all, list them here...

Sent from Mobile

Giovanni Maruzzelli
+39 347 266 56 18

On Sep 29, 2014 2:00 PM, "Daniel Ivanov" <sertys@gmail.com> wrote:

I also use a hub with external power supply, but that hardly cures the problem. On a normal x64 system, i seldom get usb errors, but the kernel doesn't panic. On the Pi i get the same bus or mem errors and it panics to need restart.

On Mon, Sep 29, 2014 at 12:17 PM, Giovanni Maruzzelli <gmaruzz@gmail.com> wrote:

nice!!!

Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618

On Mon, Sep 29, 2014 at 12:14 PM, rumodigital <webmaster.rumodigital@gmail.com> wrote:

I decided not to add more than five to avoid heat and maintain stability, so working with a margin of safety devices and distance to allow for ventilation. 

Not heats and works very well.

2014-09-29 11:01 GMT+01:00 Giovanni Maruzzelli <gmaruzz@gmail.com>:

seems a good one, with power enough to add another additional dongle, for a total of 5 concurrent.

Do it get too much warm?

-giovanni

Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618

On Mon, Sep 29, 2014 at 11:57 AM, rumodigital <webmaster.rumodigital@gmail.com> wrote:

Hi Giovanni,

I'm in the testing phase in a Mini ITX board (Atom D2550 + debian 7.6 32b) and DUB-H7 USB HUB​. I use 4 devices simultaneously (4x 500ma = 2A) and yet everything perfect!

7-Port USB 2.0 Hub (500ma on all seven front ports, but 3A in total)

http://www.dlink.com/uk/en/home-solutions/connect/usb/dub-h7-7-port-usb-2-0-hub

Do you recommend some other HUB?

Doug

2014-09-29 10:23 GMT+01:00 Giovanni Maruzzelli <gmaruzz@gmail.com>:

all this kind of problems come from lack of USB bus electrical power.

Use a wall powered (eg: with a "brick" power supply) USB hub between FreeSWITCH and dongle.

No software way to go around this.

And be sure the hub deliver enough power! (check the specs for your dongles power needs, add them up and use an USB hub with more than that continous power delivery).

Internet dongles are power hungry !

-giovanni

Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618

On Mon, Sep 29, 2014 at 11:12 AM, rumodigital <webmaster.rumodigital@gmail.com> wrote:

Hi,

Really, can be a major headache, many problems can be solved with the use of a self powered USB hub... yet I had no problems, but for example, I tested with an old pc I have, and when he received a call the module disconnected and blocked the USB port.

Which versions of Pi and what model of hardware that use?

Doug

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http://www.freeswitch.org
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FreeSWITCH-powered IP PBX: The CudaTel Communication Server
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Official FreeSWITCH Sites
http://www.freeswitch.org
http://confluence.freeswitch.org
http://www.cluecon.com

FreeSWITCH-powered IP PBX: The CudaTel Communication Server
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