On Thu, Dec 27, 2007 at 07:27:17PM -0800, Siva Prasad wrote:
> What is the kernel routine that is first called when there is, for
> example a read() function call from user program?
> I would like to start debugging from there and see if any thing at all
> happens when there is a call. Appreciate
ecember 27, 2007 8:16 PM
To: Siva Prasad
Cc: Nicholas Mc Guire; linuxppc-dev@ozlabs.org;
[EMAIL PROTECTED]
Subject: Re: Device node - How does kernel know about it
On 12/27/07, Siva Prasad <[EMAIL PROTECTED]> wrote:
> Thank you Jon and Nicholas.
>
> I already have "console=ttyS0&quo
pens when there is a call. Appreciate your help with this question.
>
> Thanks
> Siva
>
>
> -Original Message-
> From: Nicholas Mc Guire [mailto:[EMAIL PROTECTED]
> Sent: Friday, December 28, 2007 12:39 AM
> To: Siva Prasad
> Cc: linuxppc-dev@ozlabs
nt: Friday, December 28, 2007 12:39 AM
To: Siva Prasad
Cc: linuxppc-dev@ozlabs.org; [EMAIL PROTECTED]
Subject: Re: Device node - How does kernel know about it
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> * Ramdisk is also executing fine, just that prints are not coming out
of
> seria
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> * Ramdisk is also executing fine, just that prints are not coming out of
> serial. I can see the execution of various user programs with a printk
> in sys_execve() routine. Ramdisk has all the required files like
> /dev/console, /dev/ttyS0, etc.
> *
On 12/26/07, Siva Prasad <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am really interested in finding out how kernel knows about device
> nodes and how the whole thing work. This is as part of my debugging
> effort on 8641D based PowerPC board.
>
> * It all started with the problem of "not printing" any
Hi,
I am really interested in finding out how kernel knows about device
nodes and how the whole thing work. This is as part of my debugging
effort on 8641D based PowerPC board.
* It all started with the problem of "not printing" any thing that comes
from ramdisk (echo and printf statements), whil
