* Gianluca Valentino ([email protected]) wrote: > > Dear all, > > I have patched a BeagleBoard Ubuntu kernel with the ltt patch, and then > installed ltt-control and lttv as explained in the manual. > > After doing ltt-armall and lttv-gui, I get the LTTV window, and I press on > the traffic light icon as explained. > > I enter my root password, which I know is correct since after entering 'su' > in a bash shell, I get the prompt for the password, and on entering it I > enter the root shell. > > However when I press start, I get the error: > > "A problem occured when executing the su command: Unknown error 239". > > Could some one please help me out?
Ubuntu has "su" disabled by default. Please see Ubuntu-specific document about how to enable "su", or use the alternate command line "lttctl" to start/stop tracing. Have a look at dmesg to try to solve your zero-sized trace files problem. It looks like you are not stopping/destroying your trace session appropriately. Thanks, Mathieu > > Regards, > > Gianluca > > _________________________________________________________________ > Hotmail: Trusted email with powerful SPAM protection. > https://signup.live.com/signup.aspx?id=60969 > _______________________________________________ > ltt-dev mailing list > [email protected] > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
