-----Message d'origine-----
Envoyé : 8 mai 2014 07:26

> Thanks, I upgraded and this problem was fixed. 
> But I noticed something new.
>
> When I run the "lttng list command" I get the events in different order from 
> two locations I installed the new version.
> Did you encounter such an issue before?
>
> Mirit 

   I'm not sure I understand your question or your concern.  Do you mean that 
the output of 'lttng list -k' is different each time it is run, or different 
between otherwise-identical machines?  Or are you talking about 'lttng list 
-u'?  Or 'lttng list <session_name>'?

   LTTng makes no guarantees that the list of events is sorted in any 
particular way.  Kernel events normally appear in last-module-loaded-first 
order, with the events within a module appearing in seemingly arbitrary order 
(probably last-declared-first within each module).  The ordering of user-space 
events is truly unpredictable, as it depends on the order in which tracepoint 
providers register with the session daemon.

   If you need strict ordering of the event listing, you must do it yourself 
(in a programmatic context) or pipe it through the 'sort' applet (in a shell 
script context).

Daniel U. Thibault
Protection des systèmes et contremesures (PSC) | Systems Protection & 
Countermeasures (SPC)
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Security (MCCS)
R & D pour la défense Canada - Valcartier (RDDC Valcartier) | Defence R&D 
Canada - Valcartier (DRDC Valcartier)
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<http://www.valcartier.drdc-rddc.gc.ca/>

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