2010/4/22 Rogerio Luz Coelho <rogluz.news@xxxxxxxxx>: > 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 Did you build rtl8187 as a module? Otherwise modprobe -r can do nothing. > > >> >> 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. :-) >> > -- 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
