[lttng-dev] Inappropriate ioctl for device error

[Jonathan Rajotte Julien]

Hey Neil,

On 2015-03-16 07:22 AM, Neil Bryan wrote:
> What distribution are you on?
>
> The kernel-version is:
>
> Linux socfpga_cyclone5 3.10.31-ltsi-05082-g018fe6c #1 SMP Fri Mar 13 16:38:52 GMT 2015 armv7l GNU/Linux

We noticed that you had multiple lttng-modules recipes, could you do a 
modinfo on one of the .ko generated on the yocto build?

find /lib/modules/`uname -r`/ | grep lttng | head -n 1 | xargs modinfo

It is best to have only one version installed to minimize version 
incompatibility between LTTng component.

>
> Lttng version is:
>
> root at socfpga_cyclone5:~# lttng --version
> lttng (LTTng Trace Control) 2.4.0 - Époque Opaque
>
> I am using this version because it is the version included as a recipe in the Yocto Daisy distribution for the Altera SoCFPGA.
Is it possible to share it with us (url/file) ?

> As I am five hours or so in front of you guys, I shall try and get a build working with the latest version of LTTng (2.6.0), but I am not a bitbake/yocto expert

Neither am I :P. Looks like you can find up-to-date recipe here [1] . 
You could also try their mailing list for help.

[1] http://packages.yoctoproject.org/rrs/recipes/1.8/M4/



> And each time I try to change something, I end up with a whole raft of new problems to solve.

Let us know what happen.

Cheers!

Jonathan

> Thanks again,
>
> Neil.
>
> On 2015-03-13 12:40 PM, Neil Bryan wrote:
>> Hello,
>>
>> When I create a session and try to capture some kernel traces I see
>> the following (first output from lttng-sessiond and then from the
>> tracing session):
>>
>>
>> I am using the following version of LTTng:
>>
>> nbryan at meteor:/data/nbryan/Meteor/YoctoDaisy/poky/meta/recipes-kernel/
>> lttng$
>> ls -1
>>
>> babeltrace_1.1.1.bb
>>
>> lttng-modules
>>
>> lttng-modules_2.3.3.bb
>>
>> lttng-modules_2.4.2.bb
>>
>> lttng-tools
>>
>> lttng-tools_2.3.1.bb
>>
>> lttng-tools_2.4.0.bb
>>
>> lttng-ust
>>
>> lttng-ust_2.3.1.bb
>>
>> lttng-ust_2.4.0.bb
>>
>> Thank you for any clues,
>>
>>
>> Regards,
>>
>> Neil.
>>
>>
>>
>> _______________________________________________
>> lttng-dev mailing list
>> lttng-dev at lists.lttng.org
>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev