From: compudj@krystal.dyndns.org (Mathieu Desnoyers)
Subject: [ltt-dev] LTT on BeagleBoard
Date: Tue, 18 May 2010 10:32:39 -0400 [thread overview]
Message-ID: <20100518143238.GA24425@Krystal> (raw)
In-Reply-To: <SNT105-W9FDE1D58ECDF08F631E8BB2FE0@phx.gbl>
* Gianluca Valentino (g_v_valentino at hotmail.com) 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
>
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--
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
prev parent reply other threads:[~2010-05-18 14:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-15 21:09 Gianluca Valentino
2010-05-15 21:09 ` Gianluca Valentino
2010-05-15 21:09 ` Gianluca Valentino
2010-05-18 14:32 ` Mathieu Desnoyers [this message]
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