NO ADSL with kernel-smp 2.6.12-1.1376_FC3
Antonio Montagnani
anto.montagnani at virgilio.it
Wed Aug 31 12:09:38 UTC 2005
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
5: 701131 XT-PIC SysKonnect SK-98xx, Intel ICH5,
ehci_hcd:usb1, uhci_hcd:usb3
8: 1 XT-PIC rtc
11: 380784 XT-PIC uhci_hcd:usb2, uhci_hcd:usb4,
uhci_hcd:usb5, eth0
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
5: 0 0 IO-APIC-edge SysKonnect SK-98xx, Intel
ICH5, ehci _hcd:usb1, uhci_hcd:usb3
8: 1 0 IO-APIC-edge rtc
11: 0 0 IO-APIC-edge uhci_hcd:usb2,
uhci_hcd:usb4, uhci_h cd:usb5, eth0
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
I am wondering if the two kernels have different management of iptables,
in particular IPv4 or IPv6, another shot in the dark, even if is
afternoon here
tnx
--
Antonio Montagnani
Mob.+393386586046
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