Re: Interested to participate in Outreachy Program

[Doug Goldstein <cardoe@cardoe.com>]

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On 3/21/16 7:12 AM, sabiya kazi wrote:
> Hi Doug,
> Can you please help on questions/problems where I am stuck?
> Deadline for applying for outreachy is coming closer.
> Regards,
> Sabiya
> 
> Hi Doug,
>          I am done with building of xen source.Now, I have started looking
> at source files and identifying changes required for given task.
> 
>    As you suggested, I went through virsh command source to get idea how
> escape sequence char option is implemented. Based on that,I came up with
> following findings:
> *To complete this task, Steps will be*
> 
> 
>    1. Do help related change in libxl/xl_cmdtable.c

yes

>    2. Add handling of one more option for command 'xl console' in file
>    xl_cmdimpl.c in method  main_console.  From this method, call is delegated
>    to libxl_console_exec() in libxl.c

yes or libxl_primary_console_exec() so if the -e arg is specified you'll
need it to go into libxl_console_exec() as well.

>    3. libxl_console_exec delegates to execl(), Do some changes in this
>    method.

yes.

> 
> 
> *Question/Doubts:*
> 
>    -  Where I need to use this escape char?

it will be passed to the xenconsole program from step 3 above.

>    -  libxl_console_exec() is called by many methods Will it affect other
>    flows as well?

You will have to add a parameter and default it to NULL and that will
cause the underlying call to execl() to not specify that option.

>    - Could not find execl method implementation where it actually prints
>    data

Not sure I understand.

>    - Changes for handling escape char are not cleared

tools/console/client/main.c you'll find ESCAPE_CHARACTER hard coded.
You'll have to add an option here that execl() above in step 3 will
specify to pass the argument and utilize it.


> 
> Can you please help me on this?

Hopefully my comments above made sense. I'll be in the office the rest
of the week so I should be able to help if you run into any other
roadblocks.

> Regards,
> -Sabiya
> 
> 
> 
> On Sat, Mar 19, 2016 at 11:31 PM, sabiya kazi <sabiyafk@gmail.com> wrote:
> 
>> Hi Doug,
>> I have started building xen source.
>> Can you help me on issue of creating guest domain?
>>
>>
>> Regards,
>> -Sabiya
>>
>> On Fri, Mar 18, 2016 at 1:18 AM, sabiya kazi <sabiyafk@gmail.com> wrote:
>>
>>> Hi Doug,
>>>
>>> I have proceeded on xen installation. I have configured grub to use xen,
>>> I could see xl command and tried it's few options.
>>>
>>> However, I am getting failure while creating a Debian PV Guest using
>>>
>>> xen-create-image --hostname=tutorial-pv-guest \
>>>   --memory=512mb \
>>>   --vcpus=2 \
>>>   --lvm=vg0 \
>>>   --dhcp \
>>>   --pygrub \
>>>   --dist=wheezy
>>>
>>> I have attached logs for reference.
>>>  Before this step, I could not setup Linux Bridge Network for Guest
>>> networking.
>>> I am using my router for internet connection.Can this will be problem?
>>> Can you please have a look and let me know.
>>>    Now, One more question to make changes for "Xl command" I need to
>>> check it's source, I have checked out source from xen repository.
>>> Can you share path of xl and virsh command source, I can start looking at
>>> source..
>>>
>>> Rega
>>>
>>
> 


-- 
Doug Goldstein


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