ndt-users list created

[Ray Gilstrap <>]

Hi,

I meant to ask for hep on my x86-64 problems a couple of weeks ago, but 
got sidetracked with other fires.  So I'll just add essentially a "me 
too" here.  My situation:

I am trying to set up NDT on an x86-64 (Dell Poweredge 2850) box running 
the 2.6.16.7 kernel.  The Web100 tools and tcpdump/libpcap are working 
fine.  Firewall is not blocking any traffic.  The NDT tools compiled 
with no problems.  However, I have problems in trying to actually run them.

I can start fakewww and connect to port 7123 with a browser or telnet.  
But when the HTTP GET command is issued, the child process forks off, 
sends back a "HTTP/1.0 200 OK" response, and then segfaults.  After a 
while, I tabled this problem and just used Apache.  So now the page and 
the applet load into the browser as expected.

Unfortunately, web100srv does essentially the same thing as fakewww -- 
forks off a child which immediately segfaults, resulting in the 
seemingly endless loop of "Signal 11 received from process <child PID>" 
messages when debug messages are turned on.

Please let me know if you need any additional information to help 
diagnose the problem.  Thanks a lot!

ray


Hickman, David R wrote:
> Here is what I get when running the web100srv in debug.
>
> Signal 11 received from process 9072 <-this line repeats many times
> Signal 17 received from process 9054
> Received SIGCHLD signal for active web100srv process [9054]
>
>
>
> -----Original Message-----
> From: Richard Carlson 
> [mailto:]
> Sent: Wed 5/17/2006 6:01 PM
> To: Hickman, David R; 
>
> Subject: Re: Connection was reset -- FC5 on x86-64
>  
> Hi David;
>
> Does the command line tool connect?  "/usr/local/bin/web100clt localhost" 
> should work.
>
> Is the NDT server process (web100srv) running as root?  Try running the 
> server with some debug levels "/usr/local/sbin/web100srv -dd" and send me 
> the output.
>
> I don't know of any problems with running NDT on a 64-bit CPU, I've got one 
> on-order so I'll know next week.
>
> Rich
> At 04:13 PM 5/17/2006, 
>
>  wrote:
>   
> > I have just setup NDT on a 64-bit box running Fedora Core 5.  When I try 
> > to connect to the box from itself using Firefox I get "Connection was 
> > Reset by Server".  I can't get a connection from any other machine either.
> >
> > Other info:
> >
> > -running latest web100 patch for 2.6.16 kernel
> >
> > -trying to connect to 127.0.0.1:7123
> >
> > -verified that fakewww and web100srv are running, nothing bad in the logs
> >
> > -firewall is completely down
> >
> > -motherboard/nic is an nVida chipset
> >
> > Any known problems with NDT in a 64-bit environment?
> >
> >
> > Any help would be great.
> > -David
> >     
>
> ------------------------------------
>
>
>
> Richard A. Carlson                              e-mail: 
>
> Network Engineer                                phone:  (734) 352-7043
> Internet2                                       fax:    (734) 913-4255
> 1000 Oakbrook Dr; Suite 300
> Ann Arbor,  MI  48104 
>
>
>