Re: NO ADSL with kernel-smp 2.6.12-1.1376_FC3

Bob Chiodini said the following on 31/08/2005 12:53:

On Wed, 2005-08-31 at 11:47 +0200, Antonio Montagnani wrote:

Bob Chiodini said the following on 31/08/2005 11:33:

On Wed, 2005-08-31 at 07:52 +0200, Antonio Montagnani wrote:

Edward Dekkers said the following on 31/08/2005 06:26:

Antonio Montagnani wrote:

Antonio Montagnani said the following on 30/08/2005 09:16:

Edward Dekkers said the following on 30/08/2005 09:06:

Antonio Montagnani wrote:

I cannot connect to my ADSL Internet if I use SMP kernel, while with standard 2.6.12-1.1376 kernel on same machine, it works flawlessly.

The modem works, Ethernet network is on but connection is refused
Shall I file a bug??

No,

There is no real difference between running a standard kernel or an SMP one. Bar the fact that SMP will actually use the two processors in your machine that is. I run SMP myself, and it makes no difference to my connection running standard or SMP kernel.

I'd look at doing some other diagnostic work before filing a report.

We can't help you for the rest because you don't explain your set up.

Regards,
Ed.

My setup is very standard, a Pentium 4 Asus motherboard P5P800, 1 GB, two network cards (the integrated is connected to my network, the Realtek 8029 to my ethernet modem).

Which diagnostic shall I check??

upgraded to FC4, same behaviour also with 2.6.12-1.447smp

where to look???

Number one would be to see if the Realtek interface actually comes up - then there's a whole slew of tools like ifconfig, ping, iptraf, dhclient etc. to be used one by one to see where the problem lies.

When I asked you to provide more details, I wasn't really after motherboard and stuff like that, I was after your internet connection details of course. This is how I would describe one for example:

Maestro Woomera Serial modem connected to /dev/ttyS0
Using pppd on demand/wvdial to make a connection
The IP address on that interface (ppp0) is assigned dynamically by my isp.

The log shows dialling to be ok, and pppd taking over the connection once wvdial has established it. ifconfig shows an IP allocated to me ip address: 203.0.178.191 with netmask 255.255.255.0. I can ping internal addresses and external ones by name (www.microsoft.com) and number (207.46.199.60).

This is in the case of dial-up. Your trace will be different.

Really, you have provided nothing of use in diagnosing this problem. I'm assuming your modem takes care of the connection and just gives you an internal IP address which you set to the gateway? or do you need to run PPPoE or some other protocol manually?

You must assume we know nothing about your set-up when posting to this list.

Regards,
Ed.

Ed,

it seems that I can't ping the Ethernet modem when using SMP kernel(destination unreachable), if I connet to ist internal webpage I get a message of no routing.

I have iptables running: and everything is o.k on standard kernel!!!
What is happening???

--
Antonio

Anything relevant in /var/log/messages?  What is the output of route -n?

Bob...

I had a look at /var/log/messages (that I attach, only as e-mail to you...), but I am not very expert. I see a timeout transmit on eth0 repeated many times when using SMP kernel at about 6.35 at the end. I see also many errors conencted to ACPI (on both kernels) that I am not able to decode

Tnx

Antonio,

I culled the messages down into a SMP boot and a UP boot.  A quick look
indicates one message is missing in the SMP boot log.  It's marked with
an arrow and indicates that the eth0 device interrupt was detected as
IRQ 11 (UP only).  Hopefully someone can shed some light on this.  Some
other information that might help:

cat /proc/interrupts for both the UP and SMP.

Also, do you have the latest BIOS installed for your motherboard?  What

kind of motherboard is this?

An Asus P5P800, Bios updated in July

Check the IO-APIC options in the BIOS

setup.

You might try moving the realtek NIC to another slot.  That's a shot in
the dark, but it's pretty early and I'm only into my first cup of
coffee!

Bob...

   Standard
      CPU0
  0:   20180445          XT-PIC  timer
  1:       5563          XT-PIC  i8042
  2:          0          XT-PIC  cascade

  8:          1          XT-PIC  rtc

 12:     801086          XT-PIC  i8042
 14:     112972          XT-PIC  ide0
 15:     358109          XT-PIC  ide1
NMI:          0
ERR:          0

SMP
       CPU0       CPU1
  0:     137004      48896    IO-APIC-edge  timer
  1:         29         27    IO-APIC-edge  i8042

  8:          1          0    IO-APIC-edge  rtc

 12:       1146        836    IO-APIC-edge  i8042
 14:       9294       5957    IO-APIC-edge  ide0
 15:        440        568    IO-APIC-edge  ide1
NMI:          0          0
LOC:     181971     182055
ERR:          0
MIS:          0

tnx
--
Antonio Montagnani

Mob.+393386586046

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