Hi!
On 14:24 Mon 11 Feb , valdis.kletni...@vt.edu wrote:
> On Sat, 09 Feb 2013 13:10:47 +0800, horseriver said:
...
> >In network programing ,what is the essential for the maximum of
> > connections
> >dealed per second
> ...
> So the *real* question
> becomes "how many times per sec
On Tue, Feb 12, 2013 at 9:24 AM, Chetan Nanda wrote:
>
>
>
> On Mon, Feb 11, 2013 at 5:25 PM, anish singh
> wrote:
>>
>>
>>
>> On Mon, Feb 11, 2013 at 4:51 PM, पारस wrote:
>> > Hi All,
>> >
>> > To read/write data to user-space from kernel-space we use copy_from_user()
>> > and copy_to_user() f
On Mon, Feb 11, 2013 at 5:25 PM, anish singh wrote:
>
>
> On Mon, Feb 11, 2013 at 4:51 PM, पारस wrote:
> > Hi All,
> >
> > To read/write data to user-space from kernel-space we use
> copy_from_user()
> > and copy_to_user() functions.
> >
> > What is the use of these function?
> > Why kernel can't
On Mon, 11 Feb 2013 06:07:38 +0800, horseriver said:
> Actually , my question comes from network performance ,I want to know ,in
> per second ,the
> maximum of tcp connections that can be dealed with by my server.
That will be *highly* dependent on what your server code does with each
connect
On Sat, 09 Feb 2013 13:10:47 +0800, horseriver said:
>In one process ,what is the max number of opening file descriptor ?
>Can it be set to infinite ?
>
>In network programing ,what is the essential for the maximum of
> connections
>dealed per second
In general, you'll find that
On Mon, Feb 11, 2013 at 5:07 AM, horseriver wrote:
>
>
> thanks!
>
> Actually , my question comes from network performance ,I want to know ,in
> per second ,the
> maximum of tcp connections that can be dealed with by my server.
AFAIK, the only way to find out is by doing benchmark by your own
Hi folks,
The attached patch binds the capslock light to the micmute light on my
Thinkpad. It works really well.
But it's definitely the wrong way to be doing things. There are two
problems I'd like to solve a better way:
1) How do I find a pointer to the led_device struct for that led, so
that
Well, my bad. I was wrong there. Your example was correct. Even in a
multi-kernel like Barrelfish, each core manages only its own share of
memory. RAM is explicitly partitioned between cores running on each kernel
and any data structures that need to be shared across cores have to be
replicated in
On Mon, Feb 11, 2013 at 4:51 PM, पारस wrote:
> Hi All,
>
> To read/write data to user-space from kernel-space we use copy_from_user()
> and copy_to_user() functions.
>
> What is the use of these function?
> Why kernel can't directly access user address and read/write on to it?
what will happen if
On Mon, Feb 11, 2013 at 4:51 PM, पारस wrote:
> Hi All,
>
> To read/write data to user-space from kernel-space we use copy_from_user()
> and copy_to_user() functions.
>
> What is the use of these function?
> Why kernel can't directly access user address and read/write on to it?
> Can any one explai
On 2013-02-11 16:50:45 (+0530), sunil wrote:
> when i executed the below line. i din't get what i suppose to
> get...the message "hello, world"..
>
> did i miss any steps
> sunil@ubuntu:~/test/drive$ sudo insmod helloworld.ko
>
The traces you've inserted in your kernel module do not print to std
Hi All,
To read/write data to user-space from kernel-space we use copy_from_user()
and copy_to_user() functions.
What is the use of these function?
Why kernel can't directly access user address and read/write on to it?
Can any one explain why kernel can't directly access the user-space
address.
Hi kristof,
when i executed the below line. i din't get what i suppose to
get...the message "hello, world"..
did i miss any steps
sunil@ubuntu:~/test/drive$ sudo insmod helloworld.ko
On Mon, Feb 11, 2013 at 4:34 PM, Kristof Provost wrote:
> On 2013-02-11 16:24:17 (+0530), sunil wrote:
>> Have
On 2013-02-11 16:24:17 (+0530), sunil wrote:
> Have a look at this:
>
> donno wats happening:
>
> sunil@ubuntu:~/test/drive$ sudo rmmod helloworld
> sunil@ubuntu:~/test/drive$ lsmod|grep hellow*
> Binary file helloworld.ko matches
> Binary file helloworld.o matches
This doesn't actually do what
On 2013-02-11 16:10:38 (+0530), sunil wrote:
> -output
> sunil@ubuntu:~/test/drive$ sudo insmod ./helloworld.ko
> insmod: error inserting './helloworld.ko': -1 File exists
>
This means you've already loaded the module.
Try 'sudo rmmod helloworld' to unload
On 2013-02-11 15:24:08 (+0530), sunil wrote:
> while inserting module to the linux kernel, m facing this problem
> ---ERROR-
>
> sunil@ubuntu:~/test/drive$ insmod helloworld.ko
> insmod: error inserting 'h
On 02/11/2013 01:54 AM, sunil wrote:
> hi all,
> while inserting module to the linux kernel, m facing this problem
> ---ERROR-
>
> sunil@ubuntu:~/test/drive$ insmod helloworld.ko
> insmod: error inserting 'h
Try it through root access.
Regards
ASHU
-Original Message-
From: kernelnewbies-boun...@kernelnewbies.org
[mailto:kernelnewbies-boun...@kernelnewbies.org] On Behalf Of sunil
Sent: Monday, February 11, 2013 3:24 PM
To: kernelnewbies@kernelnewbies.org
Subject: error : insmod
hi all,
while
hi all,
while inserting module to the linux kernel, m facing this problem
---ERROR-
sunil@ubuntu:~/test/drive$ insmod helloworld.ko
insmod: error inserting 'helloworld.ko': -1 Operation not permitted
sunil
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