No, I don't want a printk() call, I want to broadcast to all open
terminals, much like the 'wall' command does.
Cheers,
Stephen
On 08/27/2010 04:14 PM, Martin wrote:
this is probably the most basic thing to learn when getting into kernel
development...
have a look at this for example...
Someone can clarify my understanding?
On Fri, Aug 27, 2010 at 5:03 AM, vinit dhatrak vinit.dhat...@gmail.comwrote:
On Wed, Aug 25, 2010 at 1:18 AM, Lal learner.ker...@gmail.com wrote:
Is below code race free?
void process_context_function(void)
{
/* interrupts enabled here */
Let me be the first one to comment on myself:
On Fri, Aug 27, 2010 at 11:59 AM, Peter Teoh htmldevelo...@gmail.comwrote:
On Wed, Aug 25, 2010 at 1:18 PM, Lal learner.ker...@gmail.com wrote:
Is below code race free?
the answer (I suspect) is - yesboth SMP and UP. Conventional wisedom
Cool, that's what I was looking for, thanks :)
On 08/27/2010 05:57 PM, javad karabi wrote:
why dont you just exec wall?
also,
echo hello from module /dev/pts0 will do something similar.
writes to a terminal.
therefore, maybe you can just write data into that device...
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According to:
http://software.intel.com/en-us/articles/multi-core-detect/
http://software.intel.com/en-us/articles/multi-core-detect/leaf means
the core inside the packageie, CPU cores are organized in a certain
hierarchyand multiple packages may exists...each package may have
multiple
kgdb? u either need two hardware connected via serial portor poor
people like me used VirtualBox.
but the truth is.the kernel has got so much of codes to executes...that
i only managed to steps through line by line (that is you wanted right?)
only a few functions initiallyand
On Fri, Aug 27, 2010 at 13:20, Scream poisonthe...@gmail.com wrote:
No, I don't want a printk() call, I want to broadcast to all open
terminals, much like the 'wall' command does.
Please don't top post :)
Yes,it is printk() you needuse highest priority level...most
likely the message will
Hi all,
I generally clone linus tree, which as I understand is the mainline dev
tree.
but most people use kernel which is in stable branch(i think maintained by
Greg) for some non dev work.
So suppose I want to get stable branch as well, do I need to clone the
stable repo or can I fetch the stable
On Fri, Aug 27, 2010 at 12:41, san deep sandeep.al...@gmail.com wrote:
Hi Team,
I request you to provide steps to do a source level debugging of DLKM
driver which is up and running on my development m/c.
I tried searching related documents looks like need to have 2 systems
and not sure
Hi,
I am new to kernel development.
So after being able to have some basic understand of some things I just went
through source code.
I was going through a file known as
linux-2.6.34/kernel/timer.c and found following code.
I want to understand what is it doing.
What should I be reading to be able
On Fri, Aug 27, 2010 at 1:23 PM, James Bond jamesbond.2...@gmail.com wrote:
Hi,
I am new to kernel development.
So after being able to have some basic understand of some things I just went
through source code.
I was going through a file known as
linux-2.6.34/kernel/timer.c and found
Thanks for input.
It seems that chip i actually programmed wasn't tested with the driver
provided by the kernel-rc.
There might be room for improvement.
I'm on it.
Cheers
Lutz
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On Sat, Aug 28, 2010 at 1:51 AM, Greg Freemyer greg.freem...@gmail.comwrote:
in the kernel use advance C constructs which even advanced user space
C programmers find hard to grasp. Questions about those types of
usage are very appropriate for this list and will often be better
addressed in
Please give some online link to what you said I will go through it.
http://www.google.com/search?hl=enclient=firefox-ahs=yTXrls=org.mozilla%3Aen-US%3Aofficialchannel=sq=dennis+ritchie+c+pdfcts=1282966271211aq=2sxaqi=g-s1g-sx9aql=oq=denis+ritcgs_rfai=
Say a short prayer every time you open
On Sat, Aug 28, 2010 at 9:44 AM, zeal zealc...@gmail.com wrote:
On Sat, Aug 28, 2010 at 11:41 AM, James Bond jamesbond.2...@gmail.com
wrote:
Hi,
Stephan thanks a lot for the link.
I also have a small doubt.Please see if you can resolve
As per my understanding
1) Defining any
Hi..
Sorry for crossing ,...
On Sat, Aug 28, 2010 at 11:23, James Bond jamesbond.2...@gmail.com wrote:
1) Defining any function as static tells the compiler that the
function can only be used in the file the function was defined in
Yes.
So why is that used in the code timer.c?
What I understand with respect to static and inline functions is
To make a function call CPU has to save registers and pass on ret
instructions when ever the function call ends
if we have a small fucntion which is used in a file and a function
call via CPU then over head of saving flag registers
Sorry in previous post I did not made clear actually what I wanted to
say is if you have a function is used at 10 places and you declare it
inline 10 times then there would be cache miss more and then it will
have disadvantage.
On Sat, Aug 28, 2010 at 10:37 AM, Tapas Mishra mightydre...@gmail.com
On Sat, Aug 28, 2010 at 12:09, Tapas Mishra mightydre...@gmail.com wrote:
Sorry in previous post I did not made clear actually what I wanted to
say is if you have a function is used at 10 places and you declare it
inline 10 times then there would be cache miss more and then it will
have
On Sat, Aug 28, 2010 at 12:19, James Bond jamesbond.2...@gmail.com wrote:
Please don't top post :)
What is that top post I never came across such a thing in timer code?
top post is a way to put your reply on top of the quoted previous
message...while what we do in kernelnewbies is the other
Hello,
I know this is in the border line with off-topic, since my question
is not exactly about how to develop for the kernel but about how the
kernel works. Please forgive me if my question is not appropriate.
I want to know if it's possible to create a real-time process with
SCHED_FIFO
On Sat, Aug 28, 2010 at 10:41 AM, Mulyadi Santosa mulyadi.sant...@gmail.com
wrote:
On Sat, Aug 28, 2010 at 12:09, Tapas Mishra mightydre...@gmail.com
wrote:
Sorry in previous post I did not made clear actually what I wanted to
say is if you have a function is used at 10 places and you
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