Re: kgdb over ethernet support for 3.x kernel

[Peter Teoh <htmldeveloper@xxxxxxxxx>]

have not heard of such feature available, but technically, the reason why serial port is important is because it is initialized at a very early stage in linux kernel bootup, and anything that happened before that cannot be analyzed via kgdb as well.   i am not sure why u need ethernet.   normally my approach is to use VirtualBox running a kernel with kgdb parameters all setup, and then define a virtual serial port in VirtualBox, to connect to a pipe, and then from host OS, use gdb to attach via "target remote" to the virtual terminal, which is created via the "socat" command.

Search the web for details.

http://www.google.com.sg/search?q=socat+virtualbox+serial+kgdb

On Tue, Jul 3, 2012 at 12:00 PM, Amit Nagal <helloin.amit@xxxxxxxxx> wrote:

On Mon, Jul 2, 2012 at 10:35 PM,  <Ashish_Bunkar@xxxxxxxx> wrote:
> what i know is gdb over ethernet is removed from newer kernels.
> Please let me know if you have some other information.
>
> Thanks
> Ashish Bunkar
> ________________________________________
> From: kernelnewbies-bounces@xxxxxxxxxxxxxxxxx [kernelnewbies-bounces@xxxxxxxxxxxxxxxxx] On Behalf Of Amit Nagal [helloin.amit@xxxxxxxxx]
> Subject: kgdb over ethernet support for 3.x kernel

>
> Hi ,
>
> 3.x kernel does not seem to have built in support to use kgdb over
> ethernet functionality .
> To use this , can i be guided from where i can download patch for the
> same and apply to 3.x series kernel ?
>
> thanx & regards
> Amit Nagal
>

Actually i want to to debug kernel modules with kgdb - gdb connected
over tcp / udp port
as depicted in http://kernel.org/pub/linux/kernel/people/jwessel/kdb/EnableKGDB.html
section 3 .
but in kernel , there seems to no built in support for that .

Thanx & Regards
Amit Nagal

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--
Regards,
Peter Teoh

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