[ltt-dev] ltt-dev Digest, Vol 12, Issue 17

Sun Apr 12 22:41:21 EDT 2009

Hi,
I have read many papers on the web site even plus some articles get from
google, maybe for my foolish, I have not known how to trace a private
program till now.  My setps is like this:
1. open the lttv-gui, then start to trace
2. I run a program which written by myself.
3. after the program stop, I stop the lttv trace
4. then check the report generated by lttv
But every time, what I say are all the system process. such as init, su,
bash, sshd, vsftpd and so on. I can not find any information about my own
process.
Please tell me what is my mistake. why I can not see my private program's
information. If possible, please supply a document about how to trace a
private program to me.
Thank you very much!

On Mon, Apr 13, 2009 at 12:00 AM, <ltt-dev-request at lists.casi.polymtl.ca>wrote:

> Send ltt-dev mailing list submissions to
>        ltt-dev at lists.casi.polymtl.ca
>
> To subscribe or unsubscribe via the World Wide Web, visit
>        http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
> or, via email, send a message with subject or body 'help' to
>        ltt-dev-request at lists.casi.polymtl.ca
>
> You can reach the person managing the list at
>        ltt-dev-owner at lists.casi.polymtl.ca
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of ltt-dev digest..."
>
>
> Today's Topics:
>
>   1. ltt used in network IO tracing under the environment of   KVM? (??)
>   2. Re: Run lttv-gui error (Mathieu Desnoyers)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 9 Apr 2009 16:32:06 +0800
> From: ?? <zengshan227 at gmail.com>
> To: ltt-dev at lists.casi.polymtl.ca
> Subject: [ltt-dev] ltt used in network IO tracing under the
>        environment of  KVM?
> Message-ID:
>        <9f49f7820904090132m1edf65d3n1bf13f8fcdf1b73b at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi all:
>  I am a newbie in ltt, and I am wondering whether ltt can be used to trace
> the network I/O under the  environment of KVM(Kernel based Virtual
> Machine)?  What I want to know exactly is the ingressing path of a packet
> from the host linux kernel to the guest os.
>  Any ideas?
>  Thank you very much!
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <
> http://lists.casi.polymtl.ca/pipermail/ltt-dev/attachments/20090409/da7b0d82/attachment-0001.html
> >
>
> ------------------------------
>
> Message: 2
> Date: Sat, 11 Apr 2009 21:40:42 -0400
> From: Mathieu Desnoyers <compudj at krystal.dyndns.org>
> To: Shouwei Li <casmyu at gmail.com>
> Cc: ltt-dev at lists.casi.polymtl.ca
> Subject: Re: [ltt-dev] Run lttv-gui error
> Message-ID: <20090412014042.GA5822 at Krystal>
> Content-Type: text/plain; charset=us-ascii
>
> * Shouwei Li (casmyu at gmail.com) wrote:
> > My OS is debian 5.0, so I think su command is avaiable. I have compile
> > the kernel, lttng to the latest version, so I can make sure that no
> > compatibility problem.
> >
> > You, it will show all the system calls done by the processes you are
> > interested into.
>
> By you I meant "Yes", sorry.
>
> >
> ----------------------------------------------------------------------------------------------------
> > Where I can get some documents about this topics.
> >
>
> See the LTTng Manual on the lttng.org website, and the papers published
> on this same website.
>
> Mathieu
>
> > Thank you very much! ^_^
> >
> > On 4/11/09, Mathieu Desnoyers <compudj at krystal.dyndns.org> wrote:
> > > * Shouwei Li (casmyu at gmail.com) wrote:
> > >> Hello, friends:
> > >> I login OS with root account. then I run lttv-gui like this:
> > >> [root][~]# export DISPLAY=192.168.153.1:0.0
> > >> [root][~]# lttv-gui
> > >> I have opend xmanager(passive), then the GUI pop up.
> > >> Then I click the Insert Tracing Control Module button(The traffic
> > >> light), after input the root passwd, I click start button, but an
> > >> error message box pop up, the error message is "A problem occured when
> > >> executing the su command : Operation not permitted". Please tell me
> > >> why and how to solve this problem.
> > >
> > > If you are on ubuntu, su is disabled. You would have to figure out how
> > > to reenable it using their documentation. Or you can use the lttctl
> > > command directly to control tracing instead, as stated in the
> > > documentation.
> > >
> > > Also make sure your
> > > lttv
> > > ltt-control
> > > lttng
> > >
> > > versions follow the compatibility list on the lttng.org website.
> > >
> > >> One more question: I want to monitor a program which executed from
> > >> bash, all the processes of this program execute. Include from bash to
> > >> execv, how the dynamic loader loaded the elf file and the other
> > >> libraries and so on. Does lttv can be competent for this work?
> > >> Thank you very much!
> > >
> > > You, it will show all the system calls done by the processes you are
> > > interested into.
> > >
> > > Mathieu
> > >
> > >> --
> > >> Best Regards!
> > >> Shouwei Li
> > >>
> > >> _______________________________________________
> > >> ltt-dev mailing list
> > >> ltt-dev at lists.casi.polymtl.ca
> > >> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
> > >>
> > >
> > > --
> > > Mathieu Desnoyers
> > > OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE
> 9A68
> > >
> >
> >
> > --
> > Best Regards!
> > Shouwei Li
> >
>
> --
> Mathieu Desnoyers
> OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
>
>
>
> ------------------------------
>
> _______________________________________________
> ltt-dev mailing list
> ltt-dev at lists.casi.polymtl.ca
> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
>
>
> End of ltt-dev Digest, Vol 12, Issue 17
> ***************************************
>

-- 
Best Regards!
Shouwei Li
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.casi.polymtl.ca/pipermail/lttng-dev/attachments/20090413/fb26673a/attachment-0002.htm>