2010/4/11 Gábor Stefanik <netrolller.3d@xxxxxxxxx>: > 2010/4/10 Rogerio Luz Coelho <rogluz.news@xxxxxxxxx>: >> 2010/4/10 Gábor Stefanik <netrolller.3d@xxxxxxxxx>: >>> On Sat, Apr 10, 2010 at 2:07 PM, Rogerio Luz Coelho >>> <rogluz.news@xxxxxxxxx> wrote: >>>> 2010/4/3 Rogerio Luz Coelho <rogluz.news@xxxxxxxxx>: >>>>> 2010/4/3 Larry Finger <Larry.Finger@xxxxxxxxxxxx>: >>>>>> On 04/03/2010 11:49 AM, Rogerio Luz Coelho wrote: >>>>>>> >>>>>>> I have a MS-Win7 instalation on this Laptop and it works 100% even at >>>>>>> longer distances than you report,even with walls in between. >>>>>>> >>>>>>> Will do the tcpperf test as soon as I get home. There are other with >>>>>>> the same problem with my exact chip here in Brasil , that is because >>>>>>> one of our leading Laptop vendors uses this config. >>>>>> >>>>>> What is the exact make and model of the device? It might be difficult >>>>>> for me to get one in the US, but one of the rtl8187 developers lives in >>>>>> Brazil. He should be able to find one. >>>>>> >>>>> >>>>> It愀 a POSITIVO R430L - Core 2 Duo 4GB RAM >>>>> >>>>> >>>>>>> Does it matter that the USB port used in this setting is a connected >>>>>>> to a USB HUB and then to the mother board? >>>>>> >>>>>> Is the hub passive, or is it powered? If the hub is good and not >>>>>> underpowered, it should be OK. >>>>>> >>>>>>> More details and tests will come your way in a day or two ... will >>>>>>> reinstall Mandriva 2010 and do some tests with older kernels. >>>>>> >>>>>> If you can download an openSUSE 11.2 Live CD and burn it, you would not >>>>>> even have to do an installation. That one has a 2.6.31 kernel. >>>>>> >>>>>> Larry >>>> >>>> >>>> Downloaded and installed: >>>> >>>> OpenSuse 11.2 - LiveCD result: Gnome Network-Manager tells me there >>>> is connection but no ping resposes, Firefox complains about conections >>>> errors. >>>> >>>> Mandriva 2010.0 (kernel 2.6.31-12) result: concection comes and goes >>>> ... generally the first boot of the day connects, but it lasts less >>>> than 5min. The error code is the "deauthentication by local reason >>>> (reason=3) again. >>>> >>>> MS-Win7 : connects and is as fast as ever. >>>> >>>> -- Any other suggestions? >>>> >>>> Rogerio >>>> >>>> PS: Will give OpenSuse a HD install atempt and will try to debug the >>>> Mandriva for some time, future tries involve Debian Stable (old >>>> kernel) and some Fedora (any suggestions?) and the NDISwrapper drive >>>> in a Debian Testing (the Distro I need working) >>> >>> Hi, >>> >>> Please also test Realtek's official r8187b driver. If possible, please >>> do an mmiotrace on that driver. >> >> Ok ... The official Realtek is only for 32bits systems right ? ( At >> least the guys at Realtek support told me so... ) and this mmiotrace >> can be accomplished how? Is it a program, a command, a debug message >> in some form? Sorry, as I said earlier I am NOT a kernel programer. >> >> Rogerio >> > > You need to enable MMIO tracing support in your kernel config, and > recompile your kernel (assuming it is not enabled already - distros > usually disable the entire tracing framework by default). Then: > -Mount debugfs to /debug. (Usually it is mounted by default, but some > distros like to mount it @ /sys/kernel/debug instead - remount it to > /debug.) > -"echo mmiotrace > /debug/tracing/current_tracer" > -"cat /debug/tracing/trace_pipe > trace.txt &" - at this point, tracing begins. > -Load r8187b and connect. > -"echo "Driver loaded!" > /debug/tracing/trace_marker" > -"echo nop > /debug/tracing/current_tracer" - tracing ends here. > > Do this for rtl8187 as well. > After each trace, check if "grep -i lost trace.txt" returns anything. > If it does, enlarge the trace buffer and retry: > -"cat /debug/tracing/trace_buffer_kb" > -"echo [BUFSIZE] > /debug/tracing/trace_buffer_kb", where [BUFSIZE] is > recommended to be about twice the number returned by the previous > command. I installed a vanilla kernel 2.6.32.11 , config to rum mmio , but my rtl818x modules are loaded by default and the modprobe -r command doesn't seem to change this ... any ideas ? Rogerio > > Repeat these steps until the "lost events" warning disappears. Once > you find the right BUFSIZE for one driver, you can use the same size > for the other one too. > > Hth, > Gábor > > -- > Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-) > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
