Re: [Xenomai-help] Does Valgrind work with Xenomai?

[Philippe Gerum <rpm@xenomai.org>]

Robert McCullough wrote:
> Hi,
> 
>  
> 
> I currently have a C++ application that is using 5 RTDM drivers, 2
> Xenomai real-time user-space threads and several non-real-time Linux
> threads.
> 
> This application seems to have a memory leak because after running for
> several hours the OOM-Killer kills this application.
> 
> I am looking for a memory leak detection tool to help find the leak.
> 
>   
> 
> Two years ago in the following mail it was mentioned that making
> Valgrind aware of Xenomai syscalls was on the todo list.
> 
> http://article.gmane.org/gmane.linux.real-time.xenomai.users/1805
> 
>  
> 
> Has this been done?
>

No news.

> Does Valgrind work with Xenomai?
> 

Nope.

> Do you have to use the Xenomai simulator with Valgrind?
> 

This won't work in your case. The simulator is rather aimed at virtualizing a
standalone environment for debugging the nucleus and skins that normally run in
kernel space; it is not application-oriented - you would have lots of namespace
conflicts to begin with.

> Or is there a better memory debugger the works with C++, Linux, and Xenomai?
> 

Sorry for the lame suggestion, but you may have to resort to old cranky tools
like dmalloc, provided your new/delete operators are still backed by malloc(3).
At least you should be able to identify some leakage.

>  
> 
> Thanks, 
> 
> Rob
> 
> 
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> 
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-- 
Philippe.