Re: [Xen-devel] Log Messages ....

[kumara rathnavel]

Hello George,

Thanks a lot. One more question if  I connect serial port will I be able to
see what is happening in xenwithout using xen trace 
On 2 Dec 2015 19:34, "George Dunlap"  wrote:

> On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel 
> wrote:
> > Hello All,
> >
> > I require logs of the Hypercalls made from Guest to the Hypervisor after
> the
> > boot, as xl dmesg provides me with the log messages during the
> > initialisation.
>
> One thing you could look at is xentrace and xenalyze.  You can find a
> brief introduction here:
>
> https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/
>
> You can enable Xen tracing on the Xen command-line using the
> "tbuf_size" and "tevt_mask" parameters described here:
>
> http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html
>
>  -George
>
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Re: [Xen-devel] Log Messages ....

[George Dunlap]

On 02/12/15 16:48, kumara rathnavel wrote:
> Hello George,
> 
> Thanks a lot. One more question if  I connect serial port will I be able to
> see what is happening in xenwithout using xen trace 

Please don't top-post. :-)

If you set up a serial console you'll be able to get the same output as
"xl dmesg".

Here's a guide for serial consoles in Xen in case you need it:

http://wiki.xenproject.org/wiki/Xen_Serial_Console

 -George

> On 2 Dec 2015 19:34, "George Dunlap"  wrote:
> 
>> On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel 
>> wrote:
>>> Hello All,
>>>
>>> I require logs of the Hypercalls made from Guest to the Hypervisor after
>> the
>>> boot, as xl dmesg provides me with the log messages during the
>>> initialisation.
>>
>> One thing you could look at is xentrace and xenalyze.  You can find a
>> brief introduction here:
>>
>> https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/
>>
>> You can enable Xen tracing on the Xen command-line using the
>> "tbuf_size" and "tevt_mask" parameters described here:
>>
>> http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html
>>
>>  -George
>>
> 


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Re: [Xen-devel] Log Messages ....

[kumara rathnavel]

And it is from the Dom0 the logs of both DomUs and hypervisor are recorded
ryt? Correct me if I am wrong. My Dom0 is FreeBSD11

On 3 December 2015 at 11:17, kumara rathnavel  wrote:

> Hello George,
>
> Is there any way to enable xentrace..I am not able to get any
> logs...I am using xentrace_format to view the output ..
>
> Thankyou,
> Kumar
>
> On 3 December 2015 at 10:22, kumara rathnavel 
> wrote:
>
>> Thanks a lot George!!!Hope XENTRACE will help me!!!
>>
>> On 2 December 2015 at 22:25, George Dunlap 
>> wrote:
>>
>>> On 02/12/15 16:48, kumara rathnavel wrote:
>>> > Hello George,
>>> >
>>> > Thanks a lot. One more question if  I connect serial port will I be
>>> able to
>>> > see what is happening in xenwithout using xen trace 
>>>
>>> Please don't top-post. :-)
>>>
>>> If you set up a serial console you'll be able to get the same output as
>>> "xl dmesg".
>>>
>>> Here's a guide for serial consoles in Xen in case you need it:
>>>
>>> http://wiki.xenproject.org/wiki/Xen_Serial_Console
>>>
>>>  -George
>>>
>>> > On 2 Dec 2015 19:34, "George Dunlap" 
>>> wrote:
>>> >
>>> >> On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel <
>>> kumara@gmail.com>
>>> >> wrote:
>>> >>> Hello All,
>>> >>>
>>> >>> I require logs of the Hypercalls made from Guest to the Hypervisor
>>> after
>>> >> the
>>> >>> boot, as xl dmesg provides me with the log messages during the
>>> >>> initialisation.
>>> >>
>>> >> One thing you could look at is xentrace and xenalyze.  You can find a
>>> >> brief introduction here:
>>> >>
>>> >>
>>> https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/
>>> >>
>>> >> You can enable Xen tracing on the Xen command-line using the
>>> >> "tbuf_size" and "tevt_mask" parameters described here:
>>> >>
>>> >>
>>> http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html
>>> >>
>>> >>  -George
>>> >>
>>> >
>>>
>>>
>>
>
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Re: [Xen-devel] Log Messages ....

[kumara rathnavel]

Hello George,

Is there any way to enable xentrace..I am not able to get any
logs...I am using xentrace_format to view the output ..

Thankyou,
Kumar

On 3 December 2015 at 10:22, kumara rathnavel  wrote:

> Thanks a lot George!!!Hope XENTRACE will help me!!!
>
> On 2 December 2015 at 22:25, George Dunlap 
> wrote:
>
>> On 02/12/15 16:48, kumara rathnavel wrote:
>> > Hello George,
>> >
>> > Thanks a lot. One more question if  I connect serial port will I be
>> able to
>> > see what is happening in xenwithout using xen trace 
>>
>> Please don't top-post. :-)
>>
>> If you set up a serial console you'll be able to get the same output as
>> "xl dmesg".
>>
>> Here's a guide for serial consoles in Xen in case you need it:
>>
>> http://wiki.xenproject.org/wiki/Xen_Serial_Console
>>
>>  -George
>>
>> > On 2 Dec 2015 19:34, "George Dunlap" 
>> wrote:
>> >
>> >> On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel > >
>> >> wrote:
>> >>> Hello All,
>> >>>
>> >>> I require logs of the Hypercalls made from Guest to the Hypervisor
>> after
>> >> the
>> >>> boot, as xl dmesg provides me with the log messages during the
>> >>> initialisation.
>> >>
>> >> One thing you could look at is xentrace and xenalyze.  You can find a
>> >> brief introduction here:
>> >>
>> >>
>> https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/
>> >>
>> >> You can enable Xen tracing on the Xen command-line using the
>> >> "tbuf_size" and "tevt_mask" parameters described here:
>> >>
>> >> http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html
>> >>
>> >>  -George
>> >>
>> >
>>
>>
>
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Re: [Xen-devel] Log Messages ....

[kumara rathnavel]

Thanks a lot George!!!Hope XENTRACE will help me!!!

On 2 December 2015 at 22:25, George Dunlap  wrote:

> On 02/12/15 16:48, kumara rathnavel wrote:
> > Hello George,
> >
> > Thanks a lot. One more question if  I connect serial port will I be able
> to
> > see what is happening in xenwithout using xen trace 
>
> Please don't top-post. :-)
>
> If you set up a serial console you'll be able to get the same output as
> "xl dmesg".
>
> Here's a guide for serial consoles in Xen in case you need it:
>
> http://wiki.xenproject.org/wiki/Xen_Serial_Console
>
>  -George
>
> > On 2 Dec 2015 19:34, "George Dunlap" 
> wrote:
> >
> >> On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel 
> >> wrote:
> >>> Hello All,
> >>>
> >>> I require logs of the Hypercalls made from Guest to the Hypervisor
> after
> >> the
> >>> boot, as xl dmesg provides me with the log messages during the
> >>> initialisation.
> >>
> >> One thing you could look at is xentrace and xenalyze.  You can find a
> >> brief introduction here:
> >>
> >>
> https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/
> >>
> >> You can enable Xen tracing on the Xen command-line using the
> >> "tbuf_size" and "tevt_mask" parameters described here:
> >>
> >> http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html
> >>
> >>  -George
> >>
> >
>
>
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Re: [Xen-devel] Log Messages ....

[George Dunlap]

On Wed, Dec 2, 2015 at 1:49 PM, kumara rathnavel  wrote:
> Hello All,
>
> I require logs of the Hypercalls made from Guest to the Hypervisor after the
> boot, as xl dmesg provides me with the log messages during the
> initialisation.

One thing you could look at is xentrace and xenalyze.  You can find a
brief introduction here:

https://blog.xenproject.org/2012/09/27/tracing-with-xentrace-and-xenalyze/

You can enable Xen tracing on the Xen command-line using the
"tbuf_size" and "tevt_mask" parameters described here:

http://xenbits.xenproject.org/docs/unstable/misc/xen-command-line.html

 -George

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