to measure these numbers (or
something somewhat close to that) on the Linux kernel, VxWorks or any
other kernel.
Bernd
--
Bernd Petrovitsch Email : be...@petrovitsch.priv.at
LUGA : http://www.luga.at
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parameters come at module loading time.
Other than that the not-so-bright idea: Send a patch to export
saved_command_line (including a good reason to export it to modules) to
LKML and see what people say to it.
Bernd
--
Bernd Petrovitsch Email : be...@petrovitsch.priv.at
On Fre, 2010-05-21 at 12:48 +0200, Jason Nymble wrote:
On 21 May 2010, at 12:37 PM, Bernd Petrovitsch wrote:
[...]
Other than that the not-so-bright idea: Send a patch to export
saved_command_line (including a good reason to export it to modules) to
LKML and see what people say to it.
My
in the {})
of pre-fetching ( in (1) ) and casting the current pos into the
typeof(*tpos) ( in (2) ).
Am I right ?
Yes.
Bernd
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LUGA : http://www.luga.at
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+found
Yes, because you didn't unlink/rm it. Otherwise the second mount would
fail.
[ Fullquote deleted ]
Bernd
--
Bernd Petrovitsch Email : be...@petrovitsch.priv.at
LUGA : http://www.luga.at
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Hi!
On Don, 2010-02-18 at 22:09 +0900, J.Hwan.Kim wrote:
[...]
But Kernel does not have /sys file system.
My .config file tells CONFIG_SYSFS = y.
How can I use /sys file in my system.
You must mount it just as any other filesystem.
Bernd
--
Bernd Petrovitsch Email
.
You must send the patches there.
.. and usually someone will review them and pick them up.
Bernd
--
Bernd Petrovitsch Email : be...@petrovitsch.priv.at
LUGA : http://www.luga.at
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unsubscribe
On Die, 2010-01-12 at 19:34 +0530, Niamathullah sharief wrote:
Hello. I am trying to compile xorg-server for arm board. By that time
i got a erro as
[code]checking for GL... configure: error: Package requirements
(glproto = 1.4.9 gl = 7.1.0) were not met:
No package 'gl' found
Consider
Hi!
On Fre, 2010-01-15 at 03:47 +1100, Microbit_Ubuntu wrote:
[...]
Having dug around more, I am now getting the impression that my problem
is actually NOT getting console tty1 output to my serial ttyS0...
Eg. after boot, I login on ttyS0, ok, I get prompt.
If I then login from tty1 (the
On Mit, 2010-01-13 at 19:05 -0300, Diego Woitasen wrote:
Hi,
I want to clear the console before a printk() call. Is there a
funcion in the kernel API to do it?
No, because the console can be your ordinary Linux console or over the
network or over a serial line.
You could look up the control
Hi!
On Fre, 2010-01-15 at 00:24 +1100, Microbit_Ubuntu wrote:
[...]
I can't seem to find any reference to getting *both* the ordinary AND
the serial line to work.
The first few paragraphs of
http://www.mjmwired.net/kernel/Documentation/serial-console.txt
describes this IMHO.
I didn't try it
On Don, 2010-01-07 at 20:34 +0530, Anand Raj Manickam wrote:
I have a few doubts regarding Out of Memory .
1.Does memory leak in the kernel always lead to OOM ?
If the leaking code is occasionally used, it's just a question of time.
2. I wrote a kernel test module testing the memory leak ,
On Mon, 2010-01-04 at 11:46 -0500, Greg Freemyer wrote:
On Sat, Jan 2, 2010 at 8:10 AM, Shawn cit...@gmail.com wrote:
hello guys,
I got a newbie confused when I was looking into the source code of
s3c2440's RTC driver.I dont know what is __v excatly means.anyone can
tell?thanks
On Mon, 2010-01-04 at 15:47 -0800, Greg KH wrote:
On Mon, Jan 04, 2010 at 03:32:07PM -0800, Bruce Blinn wrote:
[...]
On Sat, Jan 02, 2010 at 09:10:08PM +0800, Shawn wrote:
hello guys,
I got a newbie confused when I was looking into the source code of
s3c2440's RTC driver.I dont
On Fre, 2009-12-18 at 11:45 +0530, Indraneel Mukherjee wrote:
What's the char encoding type used to store file names on EXT4
filesystem - UTF8, UTF16 or UTF32?
All or none - depending on how you interpret it: The kernel uses the
byte sequence you pass as the filename. If it's in UTF-8, UTF-16,
On Wed, 2009-11-25 at 20:39 +0800, Pei Lin wrote:
2009/11/25 Bernd Petrovitsch be...@luga.at:
On Wed, 2009-11-25 at 00:09 +0800, Pei Lin wrote:
i am just concerned about the security of cloud computing or
distributed computing.
if a hacker attacks one nodes of the computing servers
On Fri, 2009-11-27 at 18:07 +0530, Anuz Pratap Singh Tomar wrote:
On Fri, Nov 27, 2009 at 5:56 PM, Bernd Petrovitsch be...@firmix.at
wrote:
On Fri, 2009-11-27 at 17:50 +0530, Anuz Pratap Singh Tomar wrote:
[...]
I have came across, this kind of structure
On Wed, 2009-11-25 at 00:09 +0800, Pei Lin wrote:
i am just concerned about the security of cloud computing or
distributed computing.
if a hacker attacks one nodes of the computing servers, the all nodes
which connect with it will get the wrong results.
If you are upload your data somewhere,
On Wed, 2009-10-28 at 14:02 +0530, Rajat Jain wrote:
Concatenation.
The C Programming Language.
To be more precise: look for it in the preprocessor description
[ Fullquote about ## delted ]
Please don't fullquote. It's plain simply bad email style (because it
make mails unreadable).
On Wed, 2009-10-07 at 14:06 +0800, vichy wrote:
Dear all:
I try to pass the content of file,1G, to kernel driver for operation
How? With which sys-calls?
and then return the result back to application.
My questions are:
1. The only way I can use is copy_from_user? If so, does it have the
On Tue, 2009-09-08 at 01:10 -0700, Vivek Subbarao wrote:
[...]
The ip address assigned through ifconfig is not persistent. Why is the
behaviour so? Instead of editing files to add persistent addresses why
not make ifconfig add persistent addresses? Is there a drawback to
this?
- It's not the
On Wed, 2009-09-02 at 13:31 +0530, Anuz Pratap Singh Tomar wrote:
that part of code wont be executed.
Please don't top-post.
Then why not simply use do { } while (0) or similar?
[
On Wed, Sep 2, 2009 at 1:24 PM, luca ellero lro...@libero.it wrote:
[...]
can someone please explain
On Wed, 2009-09-02 at 15:17 +0530, Anuz Pratap Singh Tomar wrote:
On Wed, Sep 2, 2009 at 2:30 PM, Bernd Petrovitsch be...@firmix.at
wrote:
On Wed, 2009-09-02 at 13:31 +0530, Anuz Pratap Singh Tomar
wrote:
that part of code wont be executed.
[...]
Then why
On Mit, 2009-08-26 at 17:18 -0500, Stoyan Gaydarov wrote:
I wanted to know what memcpy returned as a result, and if it
needs/should be checked. There are several places in the kernel where i
It is IMHO agreed concensus that kernel-implementations of well-known
(and especially C-library)
Hi!
On Wed, 2009-07-08 at 18:39 +0530, Mohamed Thalib H wrote:
TEST
Ever read the second paragraph of
http://www.kernel.org/pub/linux/docs/lkml/#s3 ?
Bernd
--
Firmix Software GmbH http://www.firmix.at/
mobil: +43 664 4416156 fax: +43 1 7890849-55
On Fre, 2009-04-17 at 19:36 +0800, yihect wrote:
[...]
Yes, I think , it's normally thinked as a generic rule to do kernel
programming
like that way you mentioned. But if we take no account of these, do you know
the
answer of my question, is the open() method got called in fork() and
On Don, 2009-04-16 at 18:49 -0500, Vinny Badrinathan wrote:
[...]
Is there a particular reason why this isn't a blind list? I'm
probably using the wrong term here so I'll describe it: the reader can
see the senders screename but when the reader wants to reply or reply
Please explain
On Thu, 2009-03-05 at 09:28 +, Srdjan Todorovic wrote:
[...]
2009/3/5 Anuz Pratap Singh Tomar chambilketha...@gmail.com:
is this question relevant to this community? you should try comp.lang.c.
Actually, it might be (as long as KernelNewbies isn't restricted to
the *Linux* kernel)...
On Tue, 2009-02-24 at 20:24 +0800, Nelson Castillo wrote:
Hi there.
Is there a strlen-like function for pointers? I have this code:
struct ts_filter_api **api_r = api;
int count = 0;
/* find out how many filters we need to create */
while (*api_r) {
count++;
api_r++;
}
and I
On Thu, 2009-02-12 at 18:23 +0530, Raseel Bhagat wrote:
On Thu, Feb 12, 2009 at 6:10 PM, Venkatesh Rao
venkateshn...@gmail.com wrote:
i have the following kernels on my machine
[r...@localhost boot]# ls -lsa
total 18481
2 drwxr-xr-x 4 root root
On Thu, 2009-02-12 at 18:47 +0530, Venkatesh Rao wrote:
[...]
then did make clean
make mrproper
Just for the archives: `make clean` is a true subset of `make mrproper`
Bernd
--
Firmix Software GmbH http://www.firmix.at/
mobil: +43 664 4416156 fax:
On Tue, 2009-01-13 at 10:51 +0100, Henrik Austad wrote:
I'm using gettimeofday to get the most accurate time from the kernel
When I use calloc to create and initalize memory for the struct timeval *tv,
everything works fine:
struct timeval *tv;
tv = (struct timeval *)calloc(1,
On Mon, 2009-01-05 at 20:26 +0530, niamathullah sharief wrote:
I was very much confused in mmap()...i done gooling...but cant
understand clearly...so can anyonr tell me what are all the parameters
indicates and how it works..
The manual page tells you all of that.
Bernd
--
Hi!
On Mon, 2008-12-29 at 01:49 +0530, Shyam Burkule wrote:
[...]
In windows basic execution unit is thread, and Linux does not
differentiate between thread and process( I mean Linux doesn't give
It does as there exists various thread implementations. For tasks,
read another mail in
On Mon, 2008-09-29 at 12:42 +0530, nidhi mittal wrote:
Hi all
its a very basic ques may be for many of you .but i have this
confusion from long that is.
when we say this application is 32 bit application or 64 bit what do
we mean by that
is it processor which is 32 bit or 64 bit
On Mon, 2008-09-29 at 17:38 +0530, Pranav Peshwe wrote:
On Mon, Sep 29, 2008 at 2:38 PM, Bernd Petrovitsch [EMAIL PROTECTED]
wrote:
snip
2. Does it have some relation that in windows in C language int size
According to the C standard, sizeof(int) is the native
On Wed, 2008-09-24 at 19:29 +0530, amit mehta wrote:
[...]
I'm trying to build linux kernel for version 2.6.24 on a machine
running suse.
so i downloaded the kernel soruces and patches from :
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/
I've downloaded following two compressed files:
On Mon, 2008-09-22 at 07:54 +0900, MinChan Kim wrote:
* Rik van Riel ([EMAIL PROTECTED]) wrote:
[]
The second option is to rewrite part of the VM so less
metadata is kept for page cache. Specifically, you will
have to write code to reclaim buffer heads from page
cache pages.
Do
On Mon, 2008-09-22 at 07:03 -0300, Edesio Costa e Silva wrote:
On Mon, Sep 22, 2008 at 10:53:38AM +0200, Bernd Petrovitsch wrote:
On Mon, 2008-09-22 at 07:54 +0900, MinChan Kim wrote:
* Rik van Riel ([EMAIL PROTECTED]) wrote:
[]
The second option is to rewrite part of the VM so
On Wed, 2008-09-17 at 17:52 -0300, Edesio Costa e Silva wrote:
Hi Folks!
I am running Linux 32 bits (2.6.26.5-bigsmp) on a virtual machine with 64 GB
of RAM. When I try to create a large file, for example dd if=/dev/null
of=/tmp/huge.file bs=1024k count=65536 the machine hangs when the file
On Wed, 2008-09-17 at 18:26 +0530, Sunil wrote:
[...]
This may not exactly be a kernel question, but giving a try.
Yes, it's a pure C question.
static variables if defined inside a function, it is defined once and
retain values across function calls, so its like global variable in
this
On Mon, 2008-08-11 at 11:31 +0200, Rene Herman wrote:
On 11-08-08 10:02, Rohit Sharma wrote:
What all possible use cases are there for multiple data stream?
( apart from spy wares and other destructive uses )
As in filesystem forks? The most convincing one I feel is video, or more
On Mon, 2008-07-28 at 14:47 -0700, Balraj Dahiya wrote:
[...]
First, don't hijack threads with a completely unrelated issue. So don't
press Reply but write a new mail and copy the email address (or delete
all References and especially In-Reply-To headers).
I started reading kernel source
On Tue, 2008-07-15 at 08:52 +0200, Roberto A. Foglietta wrote:
2008/7/14 Bernd Petrovitsch [EMAIL PROTECTED]:
On Mon, 2008-07-14 at 20:47 +0200, Roberto A. Foglietta wrote:
2008/7/14 Robert P. J. Day [EMAIL PROTECTED]:
is there a good online explanation of the difference WRT linux
On Mon, 2008-07-14 at 16:48 -0400, Robert P. J. Day wrote:
On Mon, 14 Jul 2008, Bernd Petrovitsch wrote:
As for the Linux kernel:
- soft realtime: Posix-RT-Priorities is probably good enough.
- hard real-time: you need (at least) RTAI or RTLinux.
probably a stupid question, but where
On Mit, 2008-06-18 at 16:14 +0530, ershaad ahamed wrote:
A quick google got me this
http://www.ciselant.de/projects/gcc_printf/gcc_printf.html
seems its a feature of gcc. In certain circumstances it optimizes the
printf call to a puts call. While printf behaves nicely and prints
On Mit, 2008-06-18 at 14:29 +0200, Belisko Marek wrote:
Hi,
How to pass an array of char via ioctl (not via write method ) to
kernel from user space?
I define unigue IOCTL cmd
#define LED_SET_STATE _IOW(LED_MAGIC,1, leds)
and leds should be an array from userspace.
In the ioctl()
On Die, 2008-06-17 at 17:28 +0530, Rahul Ramasubramanian wrote:
i have decided to take a round about way... i am implementing a parser
which reads the header files (/only th e external headers) and
At the very least, you need to do it after the preprocessor stage as in
theory one can construct
On Don, 2008-06-05 at 17:29 +0530, Peerless Deepak wrote:
Hello All,
I am running a snmp application and it gets crashed even before it
gets loaded in to the memory.
Probably not as this is a prerequisite to actually run the application.
I am pasting below the last few lines of strace
On Sat, 2008-05-24 at 15:39 -0400, Greg Freemyer wrote:
[]
I also think it is useful to realize that UNIX was basically designed
for systems that have a MMU even though low-end systems in the late
70s / early 80s did not have them.
The first ones (also before) didn't have a MMU and the
On Sun, 2008-05-25 at 11:26 -0400, Greg Freemyer wrote:
On Sun, May 25, 2008 at 8:23 AM, Bernd Petrovitsch [EMAIL PROTECTED] wrote:
On Sat, 2008-05-24 at 15:39 -0400, Greg Freemyer wrote:
[]
I also think it is useful to realize that UNIX was basically designed
for systems that have
On Sun, 2008-05-25 at 12:46 -0400, Greg Freemyer wrote:
On Sun, May 25, 2008 at 11:48 AM, Bernd Petrovitsch [EMAIL PROTECTED] wrote:
On Sun, 2008-05-25 at 11:26 -0400, Greg Freemyer wrote:
On Sun, May 25, 2008 at 8:23 AM, Bernd Petrovitsch [EMAIL PROTECTED]
wrote:
On Sat, 2008-05-24
On Don, 2008-04-24 at 18:52 +0200, Michael Blizek wrote:
On 17:49 Thu 24 Apr , Bernd Petrovitsch wrote:
On Don, 2008-04-24 at 17:08 +0200, Michael Blizek wrote:
It is not just cleaning the stack up. You have to make sure that no other
thread in the userspace accesses it. This means
On Don, 2008-02-14 at 14:35 +0100, Thomas De Schampheleire wrote:
On Thu, Feb 14, 2008 at 2:22 PM, Pravin [EMAIL PROTECTED] wrote:
[]
But my only concern is that Will it affect the performance.. ??
I mean now I will be having one extra process with my application
which will need some
On Mit, 2008-01-23 at 18:31 +0530, Manish Katiyar wrote:
[...]
So If i do a kzalloc() in my module and then unload my module without
freeing it, it will be a memory leak...Am i right ?? .. Or the
Yes.
kernel is intelligent enough to check and free those memory buffers
during unload
On Fri, 2007-11-09 at 10:17 +0800, Tang Rui wrote:
[...]
I want to develop a TCP/UDP daemon in LINUX kernel-space, I use
this demon to receive data from specified ip port, and then injector
the data to another driver or device.
Most of cases, we can use user-space socket interface to
On Fre, 2007-10-19 at 15:54 +0530, rahul yadav wrote:
[...]
I am a beginner in the linux kernel programming. In fact I have to
start it.
I have 2 problems:
1. As a beginner i downloaded a kernel(2.6.15.1) from the
internet(www.kernel.org) and then compiled it got an image of size
aroung
On Mit, 2007-10-03 at 09:33 +0800, Peter Teoh wrote:
My current harddisk is partitioned in the following manner. The
number of cylinder max is supposed to be 60801, but the extended
partition max out to 46688 only. fdisk does not allow me to create
any more primary, and I cannot convert
Grrmmbl:
On Mit, 2007-10-03 at 09:52 +0200, Bernd Petrovitsch wrote:
On Mit, 2007-10-03 at 09:33 +0800, Peter Teoh wrote:
My current harddisk is partitioned in the following manner. The
number of cylinder max is supposed to be 60801, but the extended
partition max out to 46688 only
On Sun, 2007-09-30 at 18:12 +0200, Michael Blizek wrote:
Hi!
I'm assuming you're working in userspace, since the memory allocation
Which leads to the obvious question: What's the relevance of the
question to the Linux kernel?
function in the kernel is kmalloc.
On Sat, 2007-09-29 at 16:49
On Thu, 2007-07-19 at 15:18 +0530, Gaurav Aggarwal wrote:
From: Bernd Petrovitsch [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 19, 2007 2:12 PM
To: Gaurav Aggarwal
Cc: kernelnewbies@nl.linux.org
Subject: Re: Behaviour of select in multi-threaded env
On Wed, 2007-07-18 at 21:25 +0530
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