Is there a patch for a bug?

Is there a patch for a bug?

[Jean-Philippe MENGUAL]

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Hi,

        I use the 2.6.32 kernel on a Debian system. I use the module
        mac80211 for my Wifi card. But in more and more numerous cases,
        I cannot get an IP with dhclient. It fails. While it searches
        for one, I get:
        wl0: wlc_d11hdrs_mac80211: AC_BE txop exceeded phylen 366/186
        
        Is it a bug in the module? I found some info but not about some
        patch or fix. Is there a fix in the recent kernel? What release
        should I use? If no patch, is there some workaround?
        
        Thanks,
        
        Sincerely,
        
Jean-Philippe MENGUAL


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Re: Is there a patch for a bug?

[Arend van Spriel]

On 03/20/2012 06:52 PM, Jean-Philippe MENGUAL wrote:
> Hi,
>
>          I use the 2.6.32 kernel on a Debian system. I use the module
>          mac80211 for my Wifi card. But in more and more numerous cases,
>          I cannot get an IP with dhclient. It fails. While it searches
>          for one, I get:
>          wl0: wlc_d11hdrs_mac80211: AC_BE txop exceeded phylen 366/186
>
>          Is it a bug in the module? I found some info but not about some
>          patch or fix. Is there a fix in the recent kernel? What release
>          should I use? If no patch, is there some workaround?
>
>          Thanks,
>
>          Sincerely,
>
> Jean-Philippe MENGUAL
>

The message itself means that according to the driver we get a transmit 
packet that exceeds the WMM txop. This message itself does not prevent 
the packet from being transmitted. I have not seen the message lately in 
recent driver versions.

You can either try compat-wireless (see [1]), which should support 
2.6.32. Or you can try the latest 3.3 kernel.

btw. 9 out of 10 times not getting an IP with dhclient means a problem 
with security credentials/handshake/etc. So if the option above do not 
solve your problems, we have to dive into that.

Gr. AvS

[1] http://linuxwireless.org/en/users/Download

Re: Is there a patch for a bug?

[Jean-Philippe MENGUAL]

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Hi,

Sorry to answer so late, but I had few time to do tests recently.
Actually it seemed to work. The conditions of success are somewhat
strange: sometimes I've to reboot and re-t!y so that the dhclient works,
but... well.

Well, so it worked, until today. I get this today:
wl0: wlc_wme_setparams : no-clock

On kernel 2.6.32, when I do iwlist scan then, the computer freezes
fully. Really fully. The hardware crashes (RAM, CPU, etc.). On a 3.2.0
kernel, it doesn't, but wlan0 says that no scan possible as network not
available. My laptop is a HP ProBook 6560b (LG652ET)

Do you know such problem and any solution? Do you think it can be a
hardware problem? I don't understand why my wifi would be locked, as I
haven't done anything for that and I don't know how to achieve this. But
I can try some unlock if you tell me the shortcut. Finally, a Debian Dev
suggested me, a long time ago, a software to check locking and control
locking of bluetooth/wifi hardware, but I don't remember it.

Thanks for your help and I'm now more available to test and tweak if
needed.

Regards,


Jean-Philippe MENGUAL


Le mercredi 21 mars 2012 à 09:21 +0100, Arend van Spriel a écrit :
> On 03/20/2012 06:52 PM, Jean-Philippe MENGUAL wrote:
> > Hi,
> >
> >          I use the 2.6.32 kernel on a Debian system. I use the module
> >          mac80211 for my Wifi card. But in more and more numerous cases,
> >          I cannot get an IP with dhclient. It fails. While it searches
> >          for one, I get:
> >          wl0: wlc_d11hdrs_mac80211: AC_BE txop exceeded phylen 366/186
> >
> >          Is it a bug in the module? I found some info but not about some
> >          patch or fix. Is there a fix in the recent kernel? What release
> >          should I use? If no patch, is there some workaround?
> >
> >          Thanks,
> >
> >          Sincerely,
> >
> > Jean-Philippe MENGUAL
> >
> 
> The message itself means that according to the driver we get a transmit 
> packet that exceeds the WMM txop. This message itself does not prevent 
> the packet from being transmitted. I have not seen the message lately in 
> recent driver versions.
> 
> You can either try compat-wireless (see [1]), which should support 
> 2.6.32. Or you can try the latest 3.3 kernel.
> 
> btw. 9 out of 10 times not getting an IP with dhclient means a problem 
> with security credentials/handshake/etc. So if the option above do not 
> solve your problems, we have to dive into that.
> 
> Gr. AvS
> 
> [1] http://linuxwireless.org/en/users/Download
> 

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