From mboxrd@z Thu Jan 1 00:00:00 1970 From: casmyu@gmail.com (Shouwei Li) Date: Sat, 11 Apr 2009 20:58:49 +0800 Subject: [ltt-dev] Run lttv-gui error In-Reply-To: <20090410160913.GB31132@Krystal> References: <20090410160913.GB31132@Krystal> Message-ID: 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. ---------------------------------------------------------------------------------------------------- Where I can get some documents about this topics. Thank you very much! ^_^ On 4/11/09, Mathieu Desnoyers 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