Re: [ns] segmentation fault on vfprintf.c?

[Haobo Yu <haoboy@ISI.EDU>]

Somewhere in a vfprintf() call the file handle is NULL.

When you linked ns against a libc with debugging info, when it segfaults
on some libc func it'll tell you where this happens. This is why you see
the line number etc. If you are on freebsd the file is at
/usr/src/lib/libc/stdio/vfprintf.c

> When I run ns on a simple wireless example I get a segmentation
> fault after some time of execution (and plenty of
> successfuls printf(), fprintf() and fprintf(stdout, "yadda")), 
> and gdb the debugger tells me the following about this fault:
> 
> #0  0x4017694a in _IO_vfprintf (s=0x0,
>     format=0x81882c3 "(%d) Entering Dijkstra (%f)\n", ap=0xbfffd004)
>     at vfprintf.c:1024
> vfprintf.c:1024: No such file or directory.    
> 
> I indeed don't have any file "vfprintf.c" on my hard disks.
> Could you tell me what's wrong and what I can do about it?
> 
> Cheers,
>  -- 
> Robin 
>