Zitat von paul_c <[EMAIL PROTECTED]>:

>
> Hi Bernhard
>
> On Sunday 12 October 2008, Bernhard Pfund wrote:
>> I have some strange behaviour here. When I try to run a periodic task
>> sending small packets at 10kHz over an UDP socket, after some few cycles
>> I get ENOBUFS. I can play with rtskb pool size, which extends the number
>> of successful cycles, but I have the feeling that there's no
>> housekeeping taking place.
>>
>> Funny enough I could run the very same code for hours before I updated
>> to the latest code base of Linux, RTnet and RTAI.
>>
>> This is the current config:
>>
>> Kernel: 2.6.26.6
>> Driver: rt_e1000 (Intel PRO/1000 PCIe)
>> Adeos : hal-linux-2.6.26-x86-2.0-13.patch
>> RTnet : 0.9.11 (SVN)
>> RTAI  : latest magma (to be 3.7)
>
> I have experienced a number of minor problems with 2.6.26.5 & RT patch. The
> network interface giving random timeouts, intermittant hard disk failures,
> and assorted spinlock reports via dmesg. Downgrading to 2.6.26.2 with the
> latest RT patch, and the problems disappear.
>
> Might be worth while reverting to an earlier 2.6.26.x kernel and see if your
> problems also vanish.
>
>
> Regards, Paul.

Hi Paul,

thanks for your answer.  I already tried to go back to 2.6.25.18 which  
is considered to be quite stable, but no luck so far. As opposed to  
the situation you described I don't get any other failures or strange  
effects. I'll go back to a point where I know for _sure_ it worked,  
that'll be late 2.6.24 / early 2.6.25.

Furthermore I try to confirm the interrupts are actually reaching  
everyone, as soon that's the case I'll dig into the data path....

Bernhard


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