Hi,
On 2016-11-17 04:24 PM, Nwafor, Ebelechukwu wrote:
Hi Jonathan. Thank you for your response.
On the beaglebone black, i tried building lttng-tools,
lttng-modules-dkms and lttng-ust-dev from source v2.8.1 by following
the documentation. lttng-modules-dkms runs fine but the module does
not show up on the list of running modules when i issue an lsmod
command. Also, i run into errors while trying to build and compile
lttng-tools. Beaglebone black runs on debian. Linux beaglebone
3.8.13-bone70 #1 SMP Fri Jan 23 02:15:42 UTC 2015 armv7l GNU/Linux
What errors do you see when building lttng-tools?
On the raspberry pi, I use the commands, apt-get install
lttng-modules-dkms lttng-tools lttng-ust-dev. Everything seems to work
fine with the exception of lttng-modules-dkms which does not show up
on the list on running modules. Also, every time i try to view
available kernel events, it comes up with an error saying unable to
list kernel events: kernel tracer not available. The LTTNG version
installed using apt-get is 2.7.1. I am running ubuntu mate OS. Below
are the output while installing lttng-modules-dkms
Well as the error points out do you have the kernel tracer started?
ps -aux | grep lttng-sessiond
Does the user trying to use lttng is part of the tracing group or is root ?
You can start lttng-sessiond with the -vvv options make sure to be root
when doing so lttng-sessiond load the tracing modules.
Since you installed it from apt-get the lttng-tools package provide a
daemon for lttng-sessiond so before testing manually:
service lttng-sessiond stop
root@ebele-desktop:~# apt-get install lttng-modules-dkms
Reading package lists... Done
Building dependency tree
Reading state information... Done
lttng-modules-dkms is already the newest version (2.7.1-1).
0 upgraded, 0 newly installed, 0 to remove and 14 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up linux-headers-4.4.0-22 (4.4.0-22.40) ...
Setting up lttng-modules-dkms (2.7.1-1) ...
Loading new lttng-modules-2.7.1 DKMS files...
First Installation: checking all kernels...
dpkg: warning: version '*-*' has bad syntax: version number does not
start with digit
It is likely that 4.4.30-v7+ belongs to a chroot's host
Module build for the currently running kernel was skipped since the
kernel source for this kernel does not seem to be installed.
Could you make sure that your linux header for the running kernel are
installed.
4.4.30-v7+ seems like a custom kernel install.
root@ebele-desktop:~#
On Thu, Nov 17, 2016 at 3:00 PM, Jonathan Rajotte
<[email protected] <mailto:[email protected]>> wrote:
Hi,
Could you be a bit more precise regarding which part of the
documentation does not work ?
How did you install it ? Distribution packages ? From sources ?
Cross compiled ?
What is your setup ? Raspian for the Pi ? Custom kernel image ?
Cheers
On Thu, Nov 17, 2016 at 2:54 PM, Nwafor, Ebelechukwu
<[email protected]
<mailto:[email protected]>> wrote:
Hello.
I am trying to install LTTNG tracing tool on raspberry pi and
beaglebone black board.The official LTTNG documentation does
not work on these devices. Does anyone know of any tutorial
that can help me accomplish this? Thanks.
--
Ebelechukwu Nwafor,
Graduate Student,
Howard University.
_______________________________________________
lttng-dev mailing list
[email protected] <mailto:[email protected]>
https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
<https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev>
--
Jonathan Rajotte Julien
--
Ebelechukwu Nwafor,
Graduate Student,
Howard University.
_______________________________________________
lttng-dev mailing list
[email protected]
https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
--
Jonathan R. Julien
Efficios
_______________________________________________
lttng-dev mailing list
[email protected]
https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
