Re: debug tips

[John Mahoney <jmahoney waav com>]

I had a buggy wifi driver and rmmod and ismod on the wifi drivers would always fix my issue.

--
John

On Mon, Jun 1, 2009 at 11:53 AM, Daniel Fetchinson <fetchinson googlemail com> wrote:

>> >> I'm trying to debug a 100% reproducable issue but don't really know
>> >> where to look for clues.
>> >>
>> >> I have a Sony VAIO VGN-FZ240E, running 64bit Fedora 8.
>> >>
>> >> It happens with many wifi networks that when I boot everything goes
>> >> fine, I can connect to the wifi network with nm-applet but as soon as
>> >> I lose the connection I will never be able reconnect. The networks in
>> >> question use pre-shared keys. If I reboot, everything will be fine
>> >> again, I can connect using the password, but as soon as I lose
>> >> connection the only way I can reconnect is by reboot.
>> >>
>> >> Instead of rebooting I tried manually restarting all network related
>> >> services but that doesn't help. These are the services I restart in
>> >> this order from /etc/rc3.d that I guess are relevant:
>> >>
>> >> service ip6tables restart
>> >> service iptables restart
>> >> service network restart
>> > NetworkManager and network are two different competitive systems to
>> > support networking. I don't say it would work but you should restart
>> > NetworkManager not network.
>>
>> Sure. But in /etc/rc3.d the order of the network related services is this:
>>
>> ip6tables
>> iptables
>> network
>> NetworkManager
>> NetworkManagerDispatcher
> Not on my machine.  NetworkManager and network are not designed to run
> at the same time. It is not clear what NM would do in run level 3
> without X. You certainly don't have a nm-applet running at rl 3 in any
> meaningful fashion.

I do boot in runlevel 3 and then start X manually with startx. After X
is running nm-applet gets started as well. There is absolutely no
problem here.

>> So I've tried stopping all 5 services and starting them in the above
>> order, because they get started in the above order while booting. But
>> already the third service, 'network', fails and wlan doesn't come up.
>> If I nevertheless restart NetworkManager and NetworkManagerDispatcher
>> I can see the wireless network in question in nm-applet but can not
>> connect. I enter the pre-shared key password but it wouldn't connect,
>> it just gives back the password window.
> Look you talk about rc3.d but if you are using nm-applet you can't be at
> run level 3 so what is in rc3.d is irrelevant.

As I've said, but let me repeat it again, I do boot into run level 3.
After logging in I start X manually via startx.

> We are having a giant miscommunication going on . What rl are you actually running at?

No, there is no miscommunication, simply you just have to believe that
it is possible to boot in runlevel 3 and then it is possible to start
X manually via startx :)

>> If I reboot though the above 5 services are started in the above order
>> and everything works, wlan comes up and nm-applet can connect using
>> the same pre-shared key password.
>>
>> So it seems to me that I need to do some additional steps manually to
>> completely reproduce what is happening at boot time. It just seems
>> impossible to me that I can not reproduce everything what is happening
>> at boot time, without actually rebooting but doing the same things
>> manually as root.
>>
>> Any ideas where should I be looking for clues?

--
Psss, psss, put it down! - http://www.cafepress.com/putitdown
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