[beagleboard] Re: When I connect the ethernet cable the board freezes.

[denis . nutiu]

(I made a new google account.)

A few days ago I plugged the cable and the ethernet worked. I didn't hot 
plug it tho. My cable is a little long about 2 meters.

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Re: [beagleboard] Re: When I connect the ethernet cable the board freezes.

[mickeyf]

No chance it's something as simple as a flaky cable? Worth trying a 
different one...

On Monday, August 8, 2016 at 11:25:52 PM UTC-7, William Hermans wrote:
>
> Thank you guys! I will update the kernel next week and see if it works, if 
>> not I'll try to find a power supply.
>>
>> Also, I tried plugging in the cable while the board was off and then turn 
>> the board on, after a few seconds some usr leds would change the default 
>> behavior and remain lit
>>
>
> That does not sound right for either case. Not enough power, or hotplug 
> issue. That sounds like a software fault of some sort. But maybe it is 
> power related ?
>
> On Mon, Aug 8, 2016 at 10:16 PM, Denis Cosmin  > wrote:
>
>> Thank you guys! I will update the kernel next week and see if it works, 
>> if not I'll try to find a power supply.
>>
>> Also, I tried plugging in the cable while the board was off and then turn 
>> the board on, after a few seconds some usr leds would change the default 
>> behavior and remain lit.
>>
>> -- 
>> For more options, visit http://beagleboard.org/discuss
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>>  
>> 
>> .
>>
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>

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[beagleboard] Re: When I connect the ethernet cable the board freezes.

[Chris Green]

William Hermans  wrote:
> [-- text/plain, encoding 7bit, charset: UTF-8, 24 lines --]
> 
> On Mon, Aug 8, 2016 at 11:54 AM, Denis Cosmin  
> wrote: 
> 
> > Yesterday the board didn't freeze. Today I tried to connect the ethernet
> > cable to the board and some USR leds lighted up and remained stuck. I've
> > lost the ssh connection and the board became unresponsive. If I disconnect
> > the cable quickly the board resumes it's activity, if I wait to much it
> > freezes.
> >
> 
> Hotplug does not work with kernels 3.8.x, and if you do physically hotplug
> these kernels. The behavior you're describing is what is expected. If you
> want an OS that will  hotplug with no problem, upgrade to a newer kernel
> 4.4.x.
> 
> Either that, or plug the cable prior to booting.
> 
That is very odd behaviour.  I have never come across any system in
many years of computing (as in back to before UTP was used for
ethernet) which doesn't allow plugging/unplugging of RJ45 connectors.

Isn't it usually all handled in the RJ45 connector interface rather
than anyththing being expected of the processor?

I'm also sure I've plugged and unplugged the ethernet on my BBB's
wothout problems.

-- 
Chris Green
·

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Re: [beagleboard] Re: When I connect the ethernet cable the board freezes.

[William Hermans]

>
> Thank you guys! I will update the kernel next week and see if it works, if
> not I'll try to find a power supply.
>
> Also, I tried plugging in the cable while the board was off and then turn
> the board on, after a few seconds some usr leds would change the default
> behavior and remain lit
>

That does not sound right for either case. Not enough power, or hotplug
issue. That sounds like a software fault of some sort. But maybe it is
power related ?

On Mon, Aug 8, 2016 at 10:16 PM, Denis Cosmin  wrote:

> Thank you guys! I will update the kernel next week and see if it works, if
> not I'll try to find a power supply.
>
> Also, I tried plugging in the cable while the board was off and then turn
> the board on, after a few seconds some usr leds would change the default
> behavior and remain lit.
>
> --
> For more options, visit http://beagleboard.org/discuss
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> 
> .
>
> For more options, visit https://groups.google.com/d/optout.
>

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[beagleboard] Re: When I connect the ethernet cable the board freezes.

[Denis Cosmin]

Thank you guys! I will update the kernel next week and see if it works, if 
not I'll try to find a power supply.

Also, I tried plugging in the cable while the board was off and then turn 
the board on, after a few seconds some usr leds would change the default 
behavior and remain lit.

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