[ltt-dev] no metadata tracefile

[Alexandre Montplaisir]

On 11-09-15 11:03 AM, Ji Zhai wrote:
> Hi Alexandre,
>
> I got the metadata_0 and ust_0, which are in different directories, from a single invocation of usttrace. After copying metadata_0 and ust_0 into same directory, I used LTTV to open that directory and got the following error:
>
> lttv -m textDump -t 9341_5652200832964231168
>
> ** ERROR **: Undescribed event 1 in channel ust
> aborting...
> /home/jizhai/MyLocal/LTTng/bin/lttv: line 15: 14715 Aborted                 $0.real $* 
>
> As you mentioned, if there is endian problem, how to solve it?
> Thanks!
>

Are you able to compile LTTV on your target (you can use ./configure
--without-lttv-gui to compile without the GUI) and try to run it from
there? The trace reading library should be able to deal with
cross-endianness, but maybe you're hitting something else.

This is all I can think of at the moment. Anyone else has an idea?

The problem of different channels in different trace directories is
definitely a bug. All of the development effort is currently going
towards UST 2.0, which will offer much more robust session handling.
It'll definitely be worth retrying it with the new version.


Cheers,

-- 
Alexandre Montplaisir
DORSAL lab,
École Polytechnique de Montréal