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Forum Topic - Core files size 0: (2 Items)
   
Core files size 0  
Afternoon,

I am debugging an issue on a ppc405 platform using the QNX 6.3.2 release.  On startup of the board, we have suddenly 
noticed that a cornucopia of our processes suddenly die.

Here's the catch:  the core files usually have size 0. e.g. we can't get anything out of the them from GDB.

Question:  Do you have an hints as to why a process on death would produce a core file of size 0?

We are speculating that there is some odd hardware interaction, potential with parallel bus connections or RAM (which is
 our primary suspect right now).  However, the same "family" of processes and libraries run on our other 405 products 
without problems - they've been doing this for years.

So, we are looking for some hints as to what the OS might be implying by producing a corefile of size 0.

Cheers,
maurice
Re: Core files size 0  
One possibility is that your apps have consumed too much 
physical memory at the time of crash and dumper couldn't run.

Could you check if this (memory starvation) is the case?

Thanks,

Aleksandar


maurice gibbs wrote:
> Afternoon,
> 
> I am debugging an issue on a ppc405 platform using the QNX 6.3.2 release.  On startup of the board, we have suddenly 
noticed that a cornucopia of our processes suddenly die.
> 
> Here's the catch:  the core files usually have size 0. e.g. we can't get anything out of the them from GDB.
> 
> Question:  Do you have an hints as to why a process on death would produce a core file of size 0?
> 
> We are speculating that there is some odd hardware interaction, potential with parallel bus connections or RAM (which 
is our primary suspect right now).  However, the same "family" of processes and libraries run on our other 405 products 
without problems - they've been doing this for years.
> 
> So, we are looking for some hints as to what the OS might be implying by producing a corefile of size 0.
> 
> Cheers,
> maurice
> 
> 
> 
> _______________________________________________
> 
> General
> http://community.qnx.com/sf/go/post39453
>