Segmentation fault (core dumped) error in mobiwan script

simz · 04-25-2012, 04:13 AM

hi... i installed mobiwan on ns-2.33 and when i tried to run simple-mipv6.tcl example i faced an error shown below:

"
[root@riaz tcl_scripts]# ns-mobiwan simple-mipv6.tcl
num_nodes is set 5
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl (except for MobiWAN simulations)
INITIALIZE THE LIST xListHead

>-------------------- NS Addressing --------------------<
Domains (domain_num) : 2
Clusters (cluster_num) : 1 5
Nodes (nodes_num) : 1 1 3 1 1 1
>-------------------------------------------------------<

Segmentation fault (core dumped)
[root@riaz tcl_scripts]#
"

please help .... thanks

drek92 · 02-08-2015, 02:03 PM

I am also facing the same problem except that my output before error is :-

num_nodes is set 5
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl (except for MobiWAN simulations)
INITIALIZE THE LIST xListHead

>-------------------- NS Addressing --------------------<
Domains (domain_num) : 2
Clusters (cluster_num) : 1 5
Nodes (nodes_num) : 1 1 3 1 1 1
>-------------------------------------------------------<

SORTING LISTS ...DONE!
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
62.0024 get_coa for BS 1.2.0:4198400 Current location: 27.3644, 420.787 Destination: 393.546, 400.769
63 Send BU to HA
Segmentation fault (core dumped)
diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33/tcl/mobiwan$

I already had NS2.35 on ubuntu 12.04 and have installed NS2.33 along with mobiwan patch for ipv6 simulation but while running simple-mipv6.tcl i got error. I ran the script by :-

diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33/tcl/mobiwan$ /home/diwakar/NS2.33/ns-allinone-2.33/ns-2.33/ns simple-mipv6.tcl

Could somebody please help me with this??

knudfl · 02-08-2015, 03:17 PM

Post #2, @drek92 : Welcome to LQ.

Which "Ubuntu 12.04" ? ? 64bits (x86_64) or 32bits (i686) ?

All my mobiwan examples are working OK here.
Example, the 64bits Ubuntu 12.04.3 : ns-2.33/tcl/mobiwan/ \
{ 2-Basic-Mobile-IPv6-example.tcl mobiwan_test_bidirct.tcl,
mobiwan_test_faster.tcl mobiwan_test_mntomn.tcl simple-mipv6.tcl}.
* The executable ns233-mobiwan1 (built from mobiwan-1) was used.

Which mobiwan version ? mobiwan-1 or mobiwan-an ?
( ns-233-mobiwan-1.patch, ns-2.33-mobiwan-an-110617.patch.)

P.S. : Bold types → Please use for one word only.
An error output / terminal output, like post #2,
is supposed to be in CODE tags ...
. http://www.linuxquestions.org/questi....php?do=bbcode
. http://www.linuxquestions.org/questi...gs-4175464257/
I.e. use the ` # ´ button in the 'Advanced Editor'.
Or simply type [/code] at text end, and [code] at error text start.

-

drek92 · 02-09-2015, 01:50 AM

Thank you for your reply
I am using ubuntu 12.04 64bits

i patched mobiwan-1 followed by mobiwan-rfc3775 from the link below :-
https://sites.google.com/site/peeraz...llation-in-ns2

i was running simple-mipv6.tcl in tcl/mobiwan folder and was getting the output mentioned in Post #2.
Additional information - The code did generate the trace file for the time it ran and the simulation ran for about 63 seconds.

I didn't make any changes to the code, that was a first time run.

I also doubt whether I am using NS2.33 or NS2.35. Could you please check my syntax from post #2.(the location for NS2.33 is correct)

I'll tell the motive of my work and need some guidance.I want to simulate an IOT network and build some kind of framework. I would be working on these three layers:-
1) Network layer - ipv6 protocol and routing protocol
2) Link layer - error corction techs and mac layer protocol
3) physical layer - some modulation schemes and power or energy restrictions.

That was background of whats needs to be done and my friend suggested to go for NS3 which supports all that needs to be done.Can you suggest somthing in this regard.

P.S :- I'll use code feature from my next post.Sorry!

knudfl · 02-09-2015, 02:43 AM

← ref. #4.

Quote:

I also doubt whether I am using NS2.33 or NS2.35

When you have more than one version of ns2, the file name 'ns' should not be used.
$ cd ns-allinone-2.33/ns-2.33/
$ cp ns ns-mobiwan-r
$ sudo cp ns-mobiwan-r /usr/local/bin/
... All simulations will work OK like $ ns-mobiwan-r simple-mipv6.tcl ,
etc. etc., unless you have a newish OS like Ubuntu 12.04 :
All examples will show `Segmentation fault´ with mobiwan-an,
may be also with the mobiwan-rfc3775 extension.
Only the old "mobiwan-1" works perfectly in a contemporary OS.

Oldish OS´s for later mobiwan+ns2 : CentOS 6.6 -i686 (supported till 2017),
Or the old Ubuntu´s 10.10 -i686 and 10.04.4 -i686 (unsupported, unsafe.)

Simulation examples ( for ns-2.3x/tcl/mobiwan/) : mobiwan-examples.tar.gz
https://drive.google.com/file/d/0B7S...ew?usp=sharing

ns3 : Please ask in the ns3 Forum , "ns-3-users" →
https://groups.google.com/forum/?fro...rum/ns-3-users
* Generally, ns3 is to be used if it can do the job.
* ns3 is constantly being developed, updated. Current is version 3.22.
* ns2 has not really been maintained for years. Only small adjustments are added.

-

drek92 · 02-09-2015, 03:22 AM

i tried what you have mentioned. Below is the output.I am still getting error.

Code:

diwakar@diwakar:~$  cd ns-allinone-2.33/ns-2.33/
bash: cd: ns-allinone-2.33/ns-2.33/: No such file or directory
diwakar@diwakar:~$ cd NS2.33/ns-allinone-2.33/ns-2.33/
diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33$ cp ns ns-mobiwan-r 
diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33$ sudo cp ns-mobiwan-r /usr/local/bin/
[sudo] password for diwakar: 
diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33$ cd tcl/mobiwan/
diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33/tcl/mobiwan$ ns-mobiwan-r simple-mipv6.tcl 
num_nodes is set 5
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl (except for MobiWAN simulations)
INITIALIZE THE LIST xListHead

  >-------------------- NS Addressing --------------------<
  Domains (domain_num) : 2
  Clusters (cluster_num) : 1 5
  Nodes (nodes_num) :  1 1 3 1 1 1
  >-------------------------------------------------------<

SORTING LISTS ...DONE!
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5,  distCST_ = 550.0
62.0024 get_coa for BS 1.2.0:4198400 Current location: 27.3644, 420.787 Destination: 393.546, 400.769
63 Send BU to HA
Segmentation fault (core dumped)
diwakar@diwakar:~/NS2.33/ns-allinone-2.33/ns-2.33/tcl/mobiwan$ ns-mobiwan-r simple-mipv6.tcl

I guess it may be rfc3775 patch. Could you tell me how to revert back to only mobiwan-1 patch.

knudfl · 02-09-2015, 04:49 AM

← ref. #6.

Quote:

how to revert back to only mobiwan-1 patch.

$ man patch http://linux.die.net/man/1/patch

Theoretically, you should do like ...
$ cd ns-allinone-2.33/
$ patch -p1 -R < ns-2.33-mobiwan-an-110617.patch

May be not worth the effort, when you easily can do :
cd /home/[user-name]/<new-folder>/
tar xvf ns-allinone-2.33.tar.gz
cd ns-allinone-2.33/
patch -p0 < otcl_ns234_gcc-4.4.patch
https://drive.google.com/file/d/0B7S...ew?usp=sharing
ln -s ns-2.33/ ns-2.33-mobiwan
patch -p0 < ns-233-mobiwan-1.patch
export CC=gcc-4.4 CXX=g++-4.4 && ./install
cd ns-2.33/
cp ns ns-mobiwan1
sudo cp ns-mobiwan1 /usr/local/bin/

-