RE: [ECOS] Startup problem

[Gary Thomas <gary@mlbassoc.com>]

On Thu, 2004-06-10 at 09:49, Rycerz Roman-G11565 wrote:
> Sorry I keep forgetting to include the environments
> 
>   * What target platform [processor architecture] -> Power PC  on a MPC5554
>   * What tools are you using				  -> gcc 2.95.3-10, Insight 5.2, ecos config tool 2.11
>   * What eCos configuration 				  -> I/O subsystem, Serial Device Drivers, eCos Kernel
>   * Is this repeatable or random			  -> random in the sense that from 1 compile to the next it comes and goes
> 

What about rerunning the same binary?  If it fails, does it always fail,
or only sometimes?  If it's the latter, I'd suspect a RAM problem.
If it always fails, then it may be a compiler issue.

> 
> Roman
> 
> 
> 
> -----Original Message-----
> From: Gary Thomas [mailto:gary@mlbassoc.com] 
> Sent: Thursday, June 10, 2004 10:33 AM
> To: Sven Rehfuss
> Cc: Rycerz Roman-G11565; ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] 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 Rehfu?
> > 
> > 
> > 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
-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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