Re: kdb patch for 2.6.24 and ARMv7

[Basavaraj Dengi <basavarajdengi@xxxxxxxxx>]

Hi,

 

After applying below patches

kdb-v4.4-2.6.24-common-2.bz2

kdb-v4.3-2.4.20-xscale-1.bz2

and after bit of struggle I was able to enter the kdb prompt setting kdb=early flag on a OMAP3430 based target.

 

Now I am trying other entry methods

a) Automatic entry when exception, divide by zero and NULL pointer derefernce happens

   

    For NULL pointer derefernce, I am calling the API kdb inside die() in file arch/arm/kernel/traps.c

    But kdb behaviour here is not the same as in case of kdb=early entry; For ex: id command does not work ..etc

   

    Please  let me know is this a correct way to proceed?

 

b) Through key press <esc> KDB.

  

   I am not using the serial console driver; instead I am directly writing/reading from the low-level uart driver.

   In this case how will the KDB come to know about the keypress.

   As a workaround, I have an executable which will call a driver ioctl and inside the driver ioctl I am calling the API kdb()

   Here also I am facing the same behaviour

   [Note if I use the macro KDB_ENTER instead kdb() I get a bad memory address error in kdb_getarea]

Any clarifications as to whats missing/wrong will be very helpful

 

Regards

Basavaraj

On Thu, Jun 4, 2009 at 3:08 PM, Basavaraj Dengi <basavarajdengi@xxxxxxxxx> wrote:

Hi

 

The kdb patch for xscal processor is for 2.4.20 kernel.

Is there any latest patch available?

I dont see any 2.6.x patches for ARMv7 on the website 

ftp://oss.sgi.com/projects/kdb/download

 

and also on google.

 

I will be very thankful for any links /suggestions

 

Regards

Basavaraj