[ECOS] Still on ethernet configuration

Tue Oct 15 21:27:00 GMT 2002

Hi again,

I debugged through the ioctl function and found out that the code
is crashing when function i82559_configure returns (at the return 0
statement, which means it executed successfully) from the call
executed at the function i82559_start. Any clue why this happens?

Another thing which a noticed and let me curious is that when I issue
the command "info threads" on gdb during the debugging I get the
following answer:

(gdb) info threads
  5 thread 4  0xc0052070 in hal_thread_switch_context () at heaps.cxx:19
  4 thread 3  0xc0052070 in hal_thread_switch_context () at heaps.cxx:19
  3 thread 2  0xc0052070 in hal_thread_switch_context () at heaps.cxx:19
  2 thread 1  idle_thread_main (data=1243983)
    at /opt/ecoscvs/packages/kernel/current/src/common/thread.cxx:1226
* 1 thread 5  i82559_start (sc=0xc00693fc,
    enaddr=0x100000 'Ã¿' <repeats 200 times>..., flags=16385)
    at 
/opt/ecoscvs/packages/devs/eth/intel/i82559/current/src/if_i82559.c:1625

As far as I understood there are 5 threads running in my system. One
is the network thread, the other is the net_init thread which I
created (see the code below) and the third should be the idle thread,
right? Why are there 5 threads then?

Here is my whole code (it's quite small but has been giving me big
headache):

#include <stdio.h>
#include <cyg/kernel/kapi.h>
#include <pkgconf/net.h>
#include <network.h>

#define STACK_SIZE 4096

cyg_thread thread_s; /* space for two thread objects */
char stack[STACK_SIZE];

/* now the handler for the threads */
cyg_handle_t thread_handle;

/* and now variables for the procedure which is the thread */

void
net_test(cyg_addrword_t p);

static struct bootp bootp_info;

void cyg_start(void)
{
    diag_printf("creating thread\n");
    cyg_thread_create(10,
                      net_test,          // entry
                      0,                 // entry parameter
                      "Network test",    // Name
                      &stack,            // Stack
                      STACK_SIZE,        // Size
                      &thread_handle,    // Handle
                      &thread_s          // Thread data structure
            );
    cyg_thread_resume(thread_handle);  // Start it
    cyg_scheduler_start();
}

void
net_test(cyg_addrword_t p)
{
  diag_printf("net_test created\n");

  cyg_thread_delay(5);

  build_bootp_record(&bootp_info,
    "128.195.11.220",
    "255.255.255.0",
    "128.195.11.255",
    "128.195.11.1",
    "");

  diag_printf("called init_net\n");
  init_net("eth0", &bootp_info);
  diag_printf("returned from init_net\n");
}

Thanks in advance,
Cristiano.

>From: Gary Thomas <gthomas@ecoscentric.com>
>To: Cristiano Pereira <ligieri2002@hotmail.com>
>CC: Andrew Lunn <andrew.lunn@ascom.ch>,eCos Discussion 
><ecos-discuss@sources.redhat.com>
>Subject: Re: [ECOS] Still on ethernet configuration
>Date: 15 Oct 2002 14:38:21 -0600
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>
>On Tue, 2002-10-15 at 14:33, Cristiano Pereira wrote:
> > I'm loading it through Redboot and debugging through the serial port
> > using gdb. But I'm basically debugging through diag_printf messages and 
>not
> > step by step.
> >
> > Cristiano.
> >
> > > > You were right. That was such a silly mistake. Thanks. But now I 
>have
> > > > another proble (this is endless :( ...). init_net never >Good.  I 
>mostly wanted to know if you were trying to debug
>this over the network.
>
>You should be able to step through the ioctl() call and
>see where it hangs up.  This particular call doesn't do
>anything spectacular - it just sets some database fields.
>
>--
>------------------------------------------------------------
>Gary Thomas                  |
>eCosCentric, Ltd.            |
>+1 (970) 229-1963            |  eCos & RedBoot experts
>gthomas@ecoscentric.com      |
>http://www.ecoscentric.com/  |
>------------------------------------------------------------
>
>
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