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From: Theo Gjaltema <gjalt007@chello•nl>
To: Wolfgang Denk <wd@denx•de>
Cc: linuxppc-embedded@ozlabs•org
Subject: Re: mpc8xx and ld.so problem
Date: Wed, 13 Jul 2005 23:32:17 +0200	[thread overview]
Message-ID: <42D58861.5040900@chello.nl> (raw)
In-Reply-To: <20050713203204.7F711353A37@atlas.denx.de>

Wolfgang Denk schreef:

>In message <42D5361B.2070402@chello•nl> you wrote:
>  
>
>>It appeard that on my mpc862 target I had also this problem. I am using
>>ELDK3.1.1 which includes a 2.4.25 kernel.
>>    
>>
>
>No, most definitely not.
>
>  
>
I don't understand this, on
/pub/Linux/distributions/eldk/3.1.1/ppc-linux-x86/distribution/common
there are the sources of a 2.4.25 kernel.

>>    Large application (20MB c++, mostly shared-libs) crashes (sigseg) at
>>startup BEFORE main() is called.
>>    Attempts to debug the application also fail: the debugger crashes
>>also (sigseg).
>>    
>>
>
>I bet that this is a FAQ. Your SDRAM initialization is broken.
>  
>
This was one of my guesses also. Since this is beyond my knowledge, I 
had the parametes initialisation parameters compared to an other 
platform which did not had the problems (rtos based), the same 
parameters were used. I did not investigate it any further.

>  
>
>>I didn't change the C-lib, I took the 2.4.30/arch/ppc/kernel/head_8xx.S
>>file and copied this over the 2.4.25 head_8xx.S file.
>>In the 2.4.30 version there is a piece of code mentioning the dcbX
>>instruction problems.
>>    
>>
>
>And did this fix the problem completely? I would be a bit surprised.
>
>  
>
No problem since.

>>This driver causes the CPM sometimes to hang when performing a memset,
>>can this be caused by the same problem?
>>    
>>
>
>Yes. When your SDRAM init is broken, strange things will happen.
>
>  
>
I'll try the kernel with the original atm/utopia to see what happens.

>Best regards,
>
>Wolfgang Denk
>
>  
>
Thanks,
    Theo Gjaltema.

  reply	other threads:[~2005-07-13 21:33 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <42C1AAC1.4060702@gmail.com>
     [not found] ` <20050629085913.GA2153@logos.cnet>
     [not found]   ` <faba7798050630071347d4ad63@mail.gmail.com>
2005-07-01  9:44     ` mpc8xx and ld.so problem Marcelo Tosatti
2005-07-01 14:55       ` Jason McMullan
2005-07-01 10:17         ` Marcelo Tosatti
2005-07-01 18:56           ` Jason McMullan
2005-07-01 14:42             ` Marcelo Tosatti
2005-07-04  8:22             ` Yuli Barcohen
2005-07-05 19:53               ` Tom Rini
2005-07-06  8:58                 ` Yuli Barcohen
2005-07-08  0:36               ` Marcelo Tosatti
2005-07-10  7:31                 ` Yuli Barcohen
2005-07-13 15:41                   ` Theo Gjaltema
2005-07-13 20:32                     ` Wolfgang Denk
2005-07-13 21:32                       ` Theo Gjaltema [this message]
2005-07-13 23:11                         ` Wolfgang Denk
2005-07-14  5:44                     ` Anton Wöllert
2005-07-14  8:23           ` ptrace on linux 2.6.12 causes oops Anton Wöllert
2005-07-14 13:31             ` Kumar Gala
2005-07-14 11:20               ` Marcelo Tosatti
     [not found]               ` <faba77980507140809ad923db@mail.gmail.com>
2005-07-14 15:11                 ` Anton Wöllert
2005-07-14 20:27             ` aris
2005-07-14 11:19               ` Marcelo Tosatti
2005-07-15  9:42                 ` Anton Wöllert
2005-07-15  5:03                   ` Marcelo Tosatti
2005-07-03 16:01       ` mpc8xx and ld.so problem Anton Wöllert
2005-07-01 18:40 Tjernlund
  -- strict thread matches above, loose matches on Subject: below --
2005-07-14 13:32 Joakim Tjernlund

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