Hi Rik,
Thanks for all your support in having this on a new name.
New mailing alias will be *kernelnewbies.**kernelnewbies.org* and
mail-id will be *kernelnewb...@**kernelnewbies.org*.
Is that right ?
Thanks,
Prabhu
On Tue, Dec 14, 2010 at 11:35 PM, Rik van Riel r...@surriel.com wrote:
Dear All,
I am trying to understand and analyse Ethernet driver of the
device *03:01.0 Ethernet controller: Intel Corporation 82557/8/9/0/1
Ethernet Pro 100 (rev 08)*.
Google search couldn't find data sheet for this device. Request
you to provide me the link or the pdf if
Thanks a lot.
Prabhu
On Fri, Dec 10, 2010 at 3:33 PM, Mulyadi Santosa
mulyadi.sant...@gmail.comwrote:
On Fri, Dec 10, 2010 at 16:41, Prabhu nath gprabhun...@gmail.com wrote:
Dear All,
I am trying to understand and analyse Ethernet driver of the
device 03:01.0 Ethernet
Dear All,
I am trying to analyse ethernet and rionet driver. Both the
drives are registered with the kernel through
register_netdev().
Each driver has their own functions registered such as e100_open(),
rionet_open(). How to trigger this functions from the user space.
Hi Robert,
I am also interested.
Regards,
Prabhu
On Sun, Nov 21, 2010 at 6:36 PM, Robert P. J. Day rpj...@crashcourse.cawrote:
i can suggest some very specific cleanups people can work on if
they're bored. one related to lists:
list_for_each() - list_for_each_entry() calls
Dear All,
Can you please clarify my doubt on /dev/mem
When I open /dev/mem, Is that entire physical address space is
associated to /dev/mem or only the system memory ?
* If I can mmap the kernel memory in read write mode, I can screw
up the whole kernel. Is that right
Prabhu,
On Tue, Oct 26, 2010 at 9:19 PM, Prabhu nath gprabhun...@gmail.com
wrote:
Dear All,
Can you please clarify my doubt on /dev/mem
When I open /dev/mem, Is that entire physical address space is
associated to /dev/mem or only the system memory ?
* If I
Please see inline. Plz correct me if I am wrong.
On Wed, Oct 27, 2010 at 10:26 AM, Mulyadi Santosa mulyadi.sant...@gmail.com
wrote:
On Wed, Oct 27, 2010 at 11:39, Prabhu nath gprabhun...@gmail.com wrote:
Thanks a lot for the clarification.
Is that not a big hole that the kernel provides
I have set ITIMER_REAL
On Sun, Oct 24, 2010 at 4:57 AM, Vimal j.vi...@gmail.com wrote:
Hi Prabhu,
On 21 October 2010 23:56, Prabhu nath gprabhun...@gmail.com wrote:
Dear All,
There is a time difference t between the time t1-at which the pending
signal
is set and the time t2
Dear All,
I am interested to perform following profiling
1. MIPS used by the kernel code execution. In particular when CS[2:0] (lower
2 bits of cs register) is 00, I need to calculate mips consumed for a
stipulated time.
2. MIPS consumed by the interrupt code - inclusive of top-half
Exactly this and few more for all the devices. This shows for the clock.
Thanks,
Prabhu
On Mon, Oct 18, 2010 at 10:54 AM, Mulyadi Santosa mulyadi.sant...@gmail.com
wrote:
On Sun, Oct 17, 2010 at 20:15, Prabhu nath gprabhun...@gmail.com wrote:
Dear All,
lshw is the utilitiy
Dear All,
*lshw* is the utilitiy to get the device details in the PC. But
it will not list out timers if any, or chipset details.
Will /sys filesystem (interface) provide the detail hardware information
? If yes, can you please help with proper link or is there any means to get
What I have understood is, the stack segment and the heap segment in the
virtual address space of an application is allocated by the kernel and the
starting address of these segments vary for every execution of a program (
on the premise that the program is not changed). Unlike the program's .text
Dear All,
If HZ = 1000 then timer will generate interrupt every 1ms. Through *
timer_list* structure, I can register a timer function to execute at a
minimum resolution of 1ms.
Is there any way to register a timer function in the kernel with a
resolution of 500 micro second ? In other way, is
Hi Dave,
Please clarify my questions/understanding written inline.
Thanks,
-Prabhu
On Wed, Oct 13, 2010 at 7:34 AM, Dave Hylands dhyla...@gmail.com wrote:
Hi Sri,
On Tue, Oct 12, 2010 at 6:29 PM, Sri Ram Vemulpali
sri.ram.gm...@gmail.com wrote:
Hi Dave,
Thanks for explanation.
Then, what is the interface specification to which both Linux and Grub
comply to.
How does Grub load the linux kernel to the memory and initiate execution of
the Kernel code.
Thanks,
Prabhu
On Wed, Oct 6, 2010 at 9:08 PM, Philip Downer p...@pjd.me.uk wrote:
Prabhu nath wrote:
I
Yes please. Nice to have your say on this.
Thanks,
Prabhu
On Mon, Oct 11, 2010 at 9:37 AM, Mulyadi Santosa
mulyadi.sant...@gmail.comwrote:
On Mon, Oct 11, 2010 at 04:33, Rik van Riel r...@surriel.com wrote:
On 10/10/2010 08:33 AM, Dragos Tatulea wrote:
Even if you theoretically could,
Dear All,
I have built a kernel version 2.6.34 and have a file *
vmlinuz-2.6.34* in /boot folder.
Is this file multiboot comliant ?. If yes, then as per multiboot
specification, first byte should be magic number 0x1BADB002.
But when I read the first byte, it is
:
Hello Prabhu,
On Mon, Oct 4, 2010 at 3:55 PM, Prabhu nath gprabhun...@gmail.com wrote:
Dear All,
I have an 512 MB RAM on an Intel desktop machine, of which
Kernel
uses 256M for all allocation for kernel as well as for user
programs. (by passing mem=256M as a boot
position 6 (blocked above) to be set, but I see that it is not
set.
*Which function is responsible to update the flags in the page table entry.
?*
Thanks,
Prabhu
On Mon, Oct 4, 2010 at 12:25 PM, Prabhu nath gprabhun...@gmail.com wrote:
Dear All,
I have an 512 MB RAM on an Intel
specific question.
On powerpc for example, you can read it via special purpose registers MAS0
– MAS3.
--
*From:* kernelnewbies-bou...@nl.linux.org [mailto:
kernelnewbies-bou...@nl.linux.org] *On Behalf Of *Prabhu nath
*Sent:* Monday, October 04, 2010 4:11 PM
Dear All,
I have an 512 MB RAM on an Intel desktop machine, of which Kernel
uses 256M for all allocation for kernel as well as for user
programs. (by passing mem=256M as a boot parameter). Hence I have
256MB of memory which I can treat it as IO memory.
System memory is
PFN defined here to experiment with IO memory as well as VGA
Controller memory.
The rest of the experiments are as written in the below mail thread.
Please check these files, and let me know if I have missed anything.
Thanks,
Prabhu
On Mon, Oct 4, 2010 at 2:46 PM, Prabhu nath gprabhun
Thanks for your kind replies.
Prabhu
On Fri, Oct 1, 2010 at 11:18 AM, Dave Hylands dhyla...@gmail.com wrote:
Hi Prabhu,
On Thu, Sep 30, 2010 at 11:29 PM, Prabhu nath gprabhun...@gmail.com
wrote:
Dear All,
I am trying to experiment the following.
* I have a 1 GB of RAM
page, I believe, you are refering to struct page.
kmap is a kernel function which takes in the parameter struct page pointer
and returns kernel virtual address.
On a typical x86 machine with 1GB RAM, kmap works like this.
If the struct page is associated with the physical page less than 896 MB,
Dear All,
I am trying to experiment the following.
* I have a 1 GB of RAM and running Linux 2.6.34 on a Intel Machine.
* I want memory allocator to get only 768 MB of RAM.
* The rest 256 MB of RAM, Kernel should see it has IO memory
Is there any option that I can pass to the kernel so
AM, Prabhu nath gprabhun...@gmail.comwrote:
There is a macro called *common_interrupt* which calls do_irq.
arch/x86/kernel/entry_32.S
Please refer ULK page 162 for more description.
Can you please share the data sheet of x86.
Regards,
Prabhu
On Mon, Sep 20, 2010 at 7:20 AM, Sri Ram
In the example, there are 3 arguments taken from the command line. They are
1. name of the file
2. the offset within the file from where the contents have to be printed
3. length in bytes from the offset that have to be printed on to stdout.
Let us take some input for our understanding. Let the
Here are my thoughts. Plz correct me if I am wrong.
In the given example 5000 is the offset within the file and not the address.
Given, the offset 5000, kernel anyway could allocate a physical page and
place the contents from the starting of the page and map it to the virtual
address.
For E.g. it
There is a macro called *common_interrupt* which calls do_irq.
arch/x86/kernel/entry_32.S
Please refer ULK page 162 for more description.
Can you please share the data sheet of x86.
Regards,
Prabhu
On Mon, Sep 20, 2010 at 7:20 AM, Sri Ram Vemulpali
sri.ram.gm...@gmail.comwrote:
Thanks for
Interrupt context is a loaded term. It is used for both top-half and
bottom-half processing.
Linux defines two terms in the top-half, one is Interrupt handler (IH) and
Interrupt Service Routine (ISR).
Interrupt handler is a standard kernel code that is executed by the
processor once the interrupt
Dear All,
In linux kernel, for all memory allocation done by *vmalloc*,
kernel maintains memory region descriptor *(vm_struct)* which stores
information about the linear virtual address range, no. of physical page
frames allocated... as a linked list headed by *vmlist *symbol.
Can you
On Mon, Aug 16, 2010 at 1:30 PM, Prabhu nath gprabhun...@gmail.com wrote:
Dear All,
In linux kernel, for all memory allocation done by *vmalloc*,
kernel maintains memory region descriptor *(vm_struct)* which stores
information about the linear virtual address range, no. of physical
wrote:
I don't exactly know the problem...but here's something to think...
On Wed, Aug 11, 2010 at 13:07, Prabhu nath gprabhun...@gmail.com wrote:
Hi,
I am facing a peculiar behaviour on Kernel version 2.6.34.1
(http://lxr.linux.no/#linux+v2.6.34.1).
For my
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