[ns] segfault with ns 2.1b8

[Laurent <lcavallin@run.montefiore.ulg.ac.be>]

hello,

I have some problems with error model on wireless channel
When i launch the script: ns segfault.
In this script I use error model with wireless channel as it shown in
the example "test-suite-wireless-lan-newnode-err.tcl".
Moreover, if I del the current line on my script:
	ErrorModel set rate_ 0.005
it doesn't segfault! where is the bug?

ns/tcp> gdb ns
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This GDB was configured as "i386-suse-linux-gnu"...
(gdb) run tcp_w.tcl
Starting program: /badoit/USERS/lcavallin/new_ns_release/bin/ns
tcp_w.tcl
Loading wireless channels parameters. . .
done
num_nodes is set 3
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
Loading traffic info. . .
done
*** NOTE: no connection pattern specified.
Loading scenario file...
Load complete...
Starting Simulation...
-------------------------------------------------------
Caracteristiques des liaisons radio
bandwidth= 2000 Kbits/s
LL delay= 0.024999999999999998 ms
Antenna/OmniAntenna: X= 0, Y= 0, Z= 1.5, Gt= 1, Gr= 1
Phys/WirelessPhys: freq= 914.0 MHz
*** error rate= 0.0050
-------------------------------------------------------

Program received signal SIGSEGV, Segmentation fault.
0x80c2d18 in Mac802_11::recv (this=0x8583d50, p=0x8585648, h=0x0) at
mac-802_11.cc:1014
1014            if(hdr->direction() == hdr_cmn::DOWN) {
(gdb) 



I use ns-2.1b8 under linux SuSe 6.3
I add my script with this mail.

Regards,
Laurent

ex-tcp-wireless-errmodel.tgz