[lttng-dev] LTTng support for kernel 3.x

Alexandre Montplaisir alexandre.montplaisir at polymtl.ca
Tue Dec 20 08:52:58 EST 2011


On 11-12-20 02:30 AM, Vit.Sykala at tieto.com wrote:
> Hi,
> According information here http://git.lttng.org/?p=lttv.git;a=blob_plain;f=doc/developer/lttng-lttv-compatibility.html;hb=HEAD LTTng last supported kernels architecture is 2.6.38.6.
> I would like to ask you: Are you planning to support of Linux kernel 3.x soon? When it will be kernel patch with compatible LTTng modules, LTT Control and LTTV available?
>
> S pozdravem / Best regards,
>

Hi,

Support for 3.0+ kernels is through the LTTng 2.0 toolchain, which is
still in pre-release at the moment. See http://lttng.org/lttng2.0

On the kernel side it's all contained in modules, no more patchset is
needed.
"lttng-tools" replaces the lttctl client for trace control.

It outputs a new trace format, which is not compatible yet with LTTV.
Work will start very soon on rewriting/porting LTTV to the new format.
For now you can use the Babeltrace tool to ouput the traces to text.


Regards,

-- 
Alexandre Montplaisir
DORSAL lab,
École Polytechnique de Montréal




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