Re: [ns] how to solve segmentation fault in ns2

[Timo Reimann]

[EMAIL PROTECTED] wrote:

  I am working on add multi-interface multi-channel support  in ns2 ,but
 now I meet a segmentation fault in implementing adding Multiple Interface
 Support in NS-2, I use command :
 $gdb ns
 $r channel.tcl
 $bt

 ..
 Now I think segmentation fault is caused by WirelessChannel::sortLists
 (),but I can not find practice reasons, please help me!

Learn how to help yourself by getting started using a debugger like gdb or
ddd. Look in the ns-2 wiki under Troubleshooting.


 another question is Simulator instproc add-channel { indexch ch}
 {
  $self instvar chan
 set chan(indexch) $ch
   ^^^
 }
 when i run test.tcl ,It always gices me that variable is not array.

This has got to mean

set chan($indexch) $ch

Check out some tcl tutorials on the web.


Cheers,

--Timo

[ns] how to solve segmentation fault in ns2

[wjw7869]

hello all,
 
 I am working on add multi-interface multi-channel support  in ns2 ,but now I 
meet a segmentation fault in implementing adding Multiple Interface Support in 
NS-2, I use command : 
$gdb ns
$r channel.tcl
$bt
it gives reminding information as follows:
#0  0x081112a7 in WirelessChannel::sortLists ()
#1  0x08112269 in WirelessChannel::sendUp ()
#2  0x08110e3a in Channel::recv ()
#3  0x0813494b in WirelessPhy::sendDown ()
#4  0x08132d9d in Phy::recv ()
#5  0x0805b4de in Connector::send ()
#6  0x08139781 in CMUTrace::recv ()
#7  0x0811980f in Mac802_11::transmit ()
#8  0x08116110 in Mac802_11::check_pktTx ()
#9  0x08116350 in Mac802_11::backoffHandler ()
#10 0x081357f4 in BackoffTimer::handle ()
..
Now I think segmentation fault is caused by WirelessChannel::sortLists (),but I 
can not find practice reasons, please help me!

another question is Simulator instproc add-channel { indexch ch}
{
 $self instvar chan
set chan(indexch) $ch
}
when i run test.tcl ,It always gices me that variable is not array.
please help me

thanks a lot !
   


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