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Re: Startup problem


On Thu, 2004-06-10 at 09:23, Sven Rehfuss wrote:
> Hi,
> use a debugger and check the code. If the routines modify stack
> variables before decrementing the stack pointer, it maybe is the same
> problem I had.
> If it is the same problem, I can give you the solution.

Why not share this solution with us all?  After all, that's what this
forum is for!

> 
> Regards,
>  Sven Rehfuß
> 
> 
> Am Do, den 10.06.2004 schrieb Rycerz Roman-G11565 um 17:08:
> > Hi
> >  
> > I have an intermittent problem.  When starting up the eCos kernel the call to "cyg_hal_invoke_constructors" sometimes fails with a segmentation violation.
> > It seems to happening when the destructors are being called.
> > in thread.cxx
> >  
> > its in the routine "~cyg_thread_remove_from_list", it seem to be working it way back thru a linked list assigning 
> > prev = prev->list_next when it blows up prev is set to the contents of memory "0", location  a null ptr problem.
> >  
> > I know this is a quite vague description, and I may all wrong..
> > But does anyone have any ideas why this is happening ???

You've not told us much about your environment.  
  * What target platform [processor architecture]?
  * What tools are you using
  * What eCos configuration 
  * Is this repeatable or random

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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