zero pointer problem

[Burke Geceyatmaz]

Hi 

I am  facing this issue. How to fix this ?

NS_ASSERT failed, cond="m_ptr", msg="Attempted to dereference zero pointer", +0.000000000s -1 file=/home/bg/ns-allinone-3.39/ns-3.39/src/core/model/ptr.h, line=752
NS_FATAL, terminating
terminate called without an active exception
Command 'build/scratch/ns3.39-aodvolsrmobility100-default' died with <Signals.SI

[Tom Henderson]

Usually, gdb is what you need to figure this out:

https://www.nsnam.org/wiki/HOWTO_use_gdb_to_debug_program_errors#running_gdb_with_ns3_script

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[Burke Geceyatmaz]

Download failed: No route to host.  Continuing without debug info for system-supplied DSO at 0x7ffff7fc5000.
Download failed: No route to host.  Continuing without debug info for /lib/x86_64-linux-gnu/libgsl.so.27.
Download failed: No route to host.  Continuing without debug info for /lib/x86_64-linux-gnu/libgslcblas.so.0.
Download failed: No route to host.  Continuing without debug info for /lib/x86_64-linux-gnu/libstdc++.so.6.
Download failed: No route to host.  Continuing without debug info for /lib/x86_

When ı run ı faced like this one above 

19 Ekim 2023 Perşembe tarihinde saat 15:56:22 UTC+3 itibarıyla Tom Henderson şunları yazdı:

[Tom Henderson]

Does it eventually install despite those download failures? Your error
message says below 'Continuing...'

This SO answer may have some advice:

https://stackoverflow.com/questions/69290986/gdb-keeps-downloading-debug-info

Maybe try:

$ unset DEBUGINFOD_URLS

On 10/19/23 07:18, Burke Geceyatmaz wrote:
> Download failed: No route to host.  Continuing without debug info for
> system-supplied DSO at 0x7ffff7fc5000.
> Download failed: No route to host.  Continuing without debug info for
> /lib/x86_64-linux-gnu/libgsl.so.27.
> Download failed: No route to host.  Continuing without debug info for
> /lib/x86_64-linux-gnu/libgslcblas.so.0.
> Download failed: No route to host.  Continuing without debug info for
> /lib/x86_64-linux-gnu/libstdc++.so.6.
> Download failed: No route to host.  Continuing without debug info for
> /lib/x86_
> When ı run ı faced like this one above
>
> 19 Ekim 2023 Perşembe tarihinde saat 15:56:22 UTC+3 itibarıyla Tom
> Henderson şunları yazdı:
>
> Usually, gdb is what you need to figure this out:
>

> https://www.nsnam.org/wiki/HOWTO_use_gdb_to_debug_program_errors#running_gdb_with_ns3_script <https://www.nsnam.org/wiki/HOWTO_use_gdb_to_debug_program_errors#running_gdb_with_ns3_script>

> https://groups.google.com/d/msgid/ns-3-users/1947d4e7-ece2-47e3-929f-e67d32671497n%40googlegroups.com <https://groups.google.com/d/msgid/ns-3-users/1947d4e7-ece2-47e3-929f-e67d32671497n%40googlegroups.com> <https://groups.google.com/d/msgid/ns-3-users/1947d4e7-ece2-47e3-929f-e67d32671497n%40googlegroups.com?utm_medium=email&utm_source=footer <https://groups.google.com/d/msgid/ns-3-users/1947d4e7-ece2-47e3-929f-e67d32671497n%40googlegroups.com?utm_medium=email&utm_source=footer>>.

>
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