Re: [RTnet-developers] rtnet wireless configuration

[Jan K. <jan...@we...>]

Daniel Gregorek wrote:
> Hi Julian,
> 
> lets stay at the rtnet-developers list. I suspect this is a driver
> problem which has to be fixed. Can you uncomment the following line
> in rt2x00.h:
> 
> #define CONFIG_RT2X00_DEBUG
> 
> then recompile the driver, start over and post all the output you get 
> after typing the "dmesg" command.

Also, if the system crashes, it can be helpful to catch the oops message
it hopefully generates. Best done via a serial kernel console,
alternatively via netconsole.

Maybe there is an IRQ conflict between the rt2500 and some Linux driver.
Check the IRQ number it uses and compare it to /proc/interrupts. The
RTnet driver should detect and report spurious IRQs, but I'm not sure if
RTAI handles this properly.

Jan

> 
> Regards,
> Daniel
> 
>  Am Mon, 19 Apr 2010 11:01:03 +0000
> schrieb julian echeverry <ech...@ho...>:
> 
>> hello,
>> i need to make the communication wireless between a  master and slave
>> with the experimental hardware rt2500 . i do the configuration of the
>> ralink rt2500 card with this steps: 1. I remove the non-realtime
>> network card's device drivers and modules (rmmod 8139too, rt2500). 2.
>> I load the RTAI  modules (rtai_hal.ko, rtai_lxrt.ko, rtai_sem.ko,
>> rtai_rtdm.ko). 3. I load the RTNET  modules (rtnet.ko, rtipv4.ko,
>> rtpacket.ko). 4. I load the rt2500 card drivers realtime
>> (rt_rt2x00core.ko, rt_rt2500pci.ko, rt_loopback.ko). 5. I configure
>> the rtwlan0 interfaces with rtifconfig and rtiwconfig.
>>
>> I can do "./rtping <IP_ADDR_LOCAL>" to ping the local loopback
>> successfully, when i call "lsmod" , i find the realtime driver of the
>> network card in the loaded module list. But when i want check the
>> communication between the nodes an i run "./rtping <IP_ADDR_SLAVE>",
>> the computer crashes and i must restart the computer also when i want
>> to make the configuration of the routing table with "./rtroute
>> solicit <IP_ADDR_SLAVE> dev rtwlan0" the computer crashes. I do not
>> know what is the problem or i am wrong because with this steps the
>> communication in the wired network with RTNET working properly.
>>
>> Thanks for the help!!
>>
>>
>>    Julian Felipe Echeverry   Studente Laurea Specialistica Ingegneria
>> Meccatronica   Politecnico Di torino  Torino, Italia
>>
>>