As I said I use kvm and this question was just for sake of argument. Since
you ask I work with sockets ATM.
30 lip 2015 16:03 nick xerofo...@gmail.com napisał(a):
On 2015-07-30 09:57 AM, Grzegorz Dwornicki wrote:
Yeah I've thought that hardware can be hard to program on UML
30 lip 2015 14
What about UML? I'm using KVM but asking for the sake of argument.
2015-07-29 23:03 GMT+02:00 Manish Katiyar mkati...@gmail.com:
On Wed, Jul 29, 2015 at 1:49 PM, Greg Freemyer greg.freem...@gmail.com
wrote:
On Wed, Jul 29, 2015 at 4:23 PM, Manish Katiyar mkati...@gmail.com wrote:
On Wed, Jul
Hello
I am wondering with pure theoretical task. Is there a posibility to
unlock the recv function without making the socket nonblocking? Lets
assume that we have our server and client:
server ---network --- client
Server callend the recv function and waits for the data from client
soo its
Hello
Proces have a established tcp socket. It calls sys_revcmsg on that
socket. That function goes all the way to tcp_recvmsg function.
Function tcp_recvmsg.c (defined in net/ipv4/tcp.c) blocks it self on
function sk_wait_data if socket recv queue is empty. I wanted to know
how socked is
Keepalive question
Hello
I am bothered with very simple situaction. Lets say we have a TCP connection:
S1 S2
Lets assume that this connection is using blocking sockets. and that
both hosts: s1 and s2 are using SO_KEEPALIVE. If they both are not
using this connection then the kernel? is
Hi
I have a big interest in how kernel handles this situaction.
Lets assume that we have two hosts: host 1 and host 2 and on host 1 I
have started this command:
nc -l -p
on host 2 I have started this command (2 means IP addres of second host here!):
nc 2
Now i can send msgs betweem
Hello
I have a question about this structure. It has 2 fields. One is iov_base
the pointer of type void. Second is iov_len of type size_t.
This is interesting: iov_len has always a value of 8190. How does it impact
the iov_base? I mean does iov_base is built from other structures? If soo
where I
/collaborate/workgroups/networking/mainpage,
see if that helps
kind regards
anupam
On Tue, Oct 14, 2014 at 7:42 AM, Grzegorz Dwornicki gd1...@gmail.com
wrote:
Hey
Is there a good documentation on how messages are taking the tour from
User calling read/write on socket fd, to kernel
Hey
Is there a good documentation on how messages are taking the tour from User
calling read/write on socket fd, to kernel handling the actual
send/receive functions? I wish to write code to capture the messages (no
netfilter - I wish to bypass it) for processing.
I know there is a socket-ops
Hi
Can anyone point me why lxc was added to the kernel instead of openvz? The
point in time will be sufficient as I will look in the lkml archives.
Grzegorz
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of money from University. This may be a problem in the long
run.
7 sie 2013 11:22, Rohan Puri rohan.pur...@gmail.com napisał(a):
On Wed, Aug 7, 2013 at 12:09 AM, Grzegorz Dwornicki gd1...@gmail.comwrote:
Hi
I'm working on own phd thesis. It includes some kernel hacking for
practical application
-
mount:wrong fs, bad option, bad superblock on /dev/sda1, Missing codepage
or other error.
Regards,
Saket Sinha
On Mon, Jul 1, 2013 at 11:54 PM, Grzegorz Dwornicki gd1...@gmail.comwrote:
Then use HEPunion with -t switch
Greg
1 lip 2013 20:18, Saket Sinha saket.sinh...@gmail.com napisał(a):
Hi
Then use HEPunion with -t switch
Greg
1 lip 2013 20:18, Saket Sinha saket.sinh...@gmail.com napisał(a):
Hi Daniel,
It shows
nodev HEPunion
Regards,
Saket Sinha
On Mon, Jul 1, 2013 at 11:37 PM, Daniel Baluta daniel.bal...@gmail.comwrote:
On Mon, Jul 1, 2013 at 8:28 PM, Saket
this.
21 kwi 2013 12:01, Robert Clove cloverob...@gmail.com napisał(a):
where to put init 3 or init 5,i mean what are the steps
On Sun, Apr 21, 2013 at 3:21 PM, Grzegorz Dwornicki gd1...@gmail.comwrote:
1) init 3 or init 5
2) man chkconfig should help you
3) read about /etc/sysconfig/network
, valdis.kletni...@vt.edu napisał(a):
On Fri, 01 Feb 2013 14:17:18 +0100, Grzegorz Dwornicki said:
I want to do something like kill -9 on specyfic process using kernel
module
Let's take a step back - can you explain *why* you're trying to do a
kill -9 from a kernel module? There's a really good
Thx for the tips :)
5 lut 2013 18:12, valdis.kletni...@vt.edu napisał(a):
On Tue, 05 Feb 2013 14:07:37 +0100, Grzegorz Dwornicki said:
I guess that there may be a better API that why this thread was created
in
first place. My project goal is to make process checkpoints like cryopid
had
1. Look in /var/log for dmesg, kernel.log or kmsg. These files cn be
created by syslog and one of them might contain this information.
2. Use dmesg command and grep it like this: dmesg | grep Initial Network
myfile.txt
4 lut 2013 09:25, horseriver horseriv...@gmail.com napisał(a):
hi:)
I have seen articles about using console port to redirect kernel messages
from VM to host. You may want to look for details in google. I don't
remeber the ugly details...
4 lut 2013 11:38, horseriver horseriv...@gmail.com napisał(a):
On Mon, Feb 04, 2013 at 09:41:51AM +0100, Grzegorz Dwornicki
Hi
Can I kill process by changing its exit codes in task_struct structure?
Lets do this in 2 steps:
1. Modify the exit codes in task_struct
2. Call schedule
I want to do something like kill -9 on specyfic process using kernel module
Thanks
G.
___
Let me get this right: you have 2 distros? On one (ubuntu) you have swap
and on other (lubuntu) not? Looks like missing fstab entry too me
Greg.
27 sty 2013 13:24, Martin Kepplinger mart...@posteo.de napisał(a):
Hi,
I run a recent re-kernel (using lubuntu 12.04) and when I boot into it,
free
On the Sylicon Valey Linux User Group at the Kernel Walktrought (you can
watch it on youtube) Jim said something about kernel remembering its root
devide durring compilation soo when you don't use root arg it will use that
setting inside of its image. But someone might verify this
G.
22 sty 2013
How does __user macro works? I know it is defined in
include/linux/compiler.h as:
# define __user.__attribute__((noderef, address_space(1)))
I could write thesse macros defs too but my real problem is: what does this
stuff do? Some functions use this macro and other does not. For example
I too would like to read tutorial like this.
Ramfs is not disk based.
Reading code of extX or other is a little pain... I was searching for
article like this on lwn but there are only tutorials about nondisk fs.
Greg
8 sty 2013 15:48, Mulyadi Santosa mulyadi.sant...@gmail.com napisał(a):
On
Well I had same problem in my own project that I am working ATM. We
won't be sure what is wrong until you show us the sourcecode but my
guess is missing EXPORT_SYMBOL makro - that was missing in my project.
Greg.
- Reply message -
From: Pritam Bankar pritambankar1988 at gmail.com
Date:
Hi
I have to ask about this: can process ignore this signal? If yes then
this method is not perfect. I know i read somewhere about signals and
there was this part: processes can ignore nearly all of them. Two
signals can't be ignored: SIGKILL and... I don't remember the
second...
Greg.
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