Re: RTL8187 bugs

[Larry Finger <Larry.Finger@lwfinger.net>]

On 12/04/2013 01:52 AM, Nikita N. wrote:
> Hi Larry :) thank you very much for the comments on my patch, really
> appreciated.
>
> Anyway, lets try to stick on the issue, ok?
> The issue is the malfunction of *MONITOR* mode.
> I can't see any monitor mode call from your log, you tested only managed
> mode, isn't it?
> I repeat, managed mode works perfectly also in my interfaces, no need to
> test it.
> We need to test *MONITOR* mode.
>
> Since you say that at you, the *MONITOR* mode works ok, I need to
> reproduce your environment here, in order to test the *MONITOR* mode.
> As already asked in previous email, what OS Linux distro do you use
> exactly when you test *MONITOR* mode in your 8187 interfaces?
> What programs suite do you use exactly when you test *MONITOR* mode in
> your 8187 interfaces?

Until I fixed your patch, I could not be assured that it would work. I get 
nervous when that small a patch generates that many warhings.

I was finally able to test monitor mode this morning, and found that it is 
failing for kernel 3.13-rc2 as you said. The system set promiscous mode, but no 
off-channel data is returned. I use openSUSE 13.1 on an ancient laptop. It is 
installed without X - not enough memory. I use kismet to capture over-the-air 
data. I am currently building a v3.0 kernel to see when the failure happened. At 
least I am pretty sure that I used rtl8187 in monitor mode in the past.

The logged data for my most recent run is

[  295.841561] device wlan2 entered promiscuous mode
[  295.842068] rtl8187_configure_filter
[  295.842104] IN>changed_flags=0x3 ,total_flags=0x80000001 ,multicast=0x3 
,priv->rx_conf=0x9094fc0e
[  295.842114] >FIF_ALLMULTI
[  295.842190] OUT>total_flags=0x2 ,priv->rx_conf=0x9094fc0e
[  295.901636] rtl8187_configure_filter
[  295.901690] IN>changed_flags=0xf3 ,total_flags=0x800000f1 ,multicast=0x3 
,priv->rx_conf=0x9094fc0e
[  295.901702] >FIF_CONTROL
[  295.901711] >FIF_OTHER_BSS
[  295.902016] >FIF_ALLMULTI, ***** Also has FIF_PSPOLL and FIF_PROBE_REQ set
[  295.902113] OUT>total_flags=0x62 ,priv->rx_conf=0x909cfc0f
[  296.279678] device wlan2mon entered promiscuous mode
[  296.282327] rtl8187_configure_filter
[  296.282363] IN>changed_flags=0x93 ,total_flags=0x800000f1 ,multicast=0x3 
,priv->rx_conf=0x909cfc0f
[  296.282373] >FIF_ALLMULTI
[  296.282445] OUT>total_flags=0x62 ,priv->rx_conf=0x909cfc0f

Larry