Re: MPC8343 - "unable to handle paging request @ 0"

Scott Wood wrote:

On Tue, Apr 08, 2008 at 03:50:26PM +0200, Andre Schwarz wrote:
  

quoted

after building a debug kernel and attaching the bdi2000 it looks like  
the crash occurs during "console_init()" ...
    

Does your device tree have a /chosen node after u-boot is done with it? 
find_legacy_serial_ports() can crash otherwise (we really should fix that).

  

latest u-boot does add the chosen node.
As far as I know it's for initrd setup ... don't know if it's complete.

quoted

Since we're using a dtb I omit the "console=..." argument for the  
kernel. Is this correct ?
    

It's OK if you have /chosen/linux,stdout-path.

  

that sounds promising ! Haven't seen this and will have a closer look.

quoted

If "console=/dev/ttyS0,115200N8" argument is given the serial console  
stops working after console_init....


On other PowerPC system I could see something like this during boot :

-> find_legacy_serial_port()
stdout is /soc8568@e0000000/serial@4600
legacy_serial_console = 1
default console speed = 115340
<- find_legacy_serial_port()


Should I see this message also ?
    

Only if you enable debug messages in legacy_serial.c.

  

ok.

quoted

Have I misconfigured anything ?
    

One thing that sticks out from the above is that you ask for ttyS0, but the
stdout you list from the other system corresponds to ttyS1.  Is this just a
difference between the two systems?

  

Yes - the log from the MPC8568 is a copy&paste from another posting. 
It's not my system.
I want ttyS0.

-Scott
  

I appreciate your help !

Thanks,
André


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