NVE

[Kövesdán Gábor]

Maxime Henrion wrote:

>K?vesd?n G?bor wrote:
>  
>
>>Maxime Henrion wrote:
>>
>>    
>>
>>>K??vesd??n G??bor wrote:
>>>
>>>
>>>      
>>>
>>>>yerenkow at uct.ua wrote:
>>>>
>>>>  
>>>>
>>>>        
>>>>
>>>>>Hello list users.
>>>>>
>>>>>I have bougth motherboard Epox 8kda3J, which has NV ethernet adapter 
>>>>>MCP7.
>>>>>My system was FreeBSD 5.4 and i found NV MCP Driver for FreeBSD here:
>>>>>http://www.onthenet.com.au/~q/nvnet/
>>>>>Ok, I got it, install and kldloaded; then ifconfig tells me that my
>>>>>ethernet card see cable, but I started to receive these messages:
>>>>>device nv0 timeout(5), with ascending numbers;
>>>>>
>>>>>Ok, I get Freebsd 6.0-BETA1, where driver pre-built in kernel.
>>>>>The different were only interface name, whic is nve0, but also shows
>>>>>timeouts.
>>>>>
>>>>>This was tested with cross cable between two pcs, and with normal cable
>>>>>pc-switch.
>>>>>I tried to turn on debugging nve driver, but then system just hangs.
>>>>>
>>>>>Can anyone comment?
>>>>>
>>>>>
>>>>>
>>>>>    
>>>>>
>>>>>          
>>>>>
>>>>Hi,
>>>>
>>>>I have the same network interface on Asus A8N-SLI Deluxe. That nve 
>>>>driver in the FreeBSD6.0-BETA1
>>>>is very poor. Sometimes it causes a kernel panic, sometimes it hangs 
>>>>with device timeouts. I've sent a PR
>>>>about that kernel panic with trace included but nobody has taken care of 
>>>>that yet.
>>>>  
>>>>
>>>>        
>>>>
>>>I have committed a fix to the nve(4) driver very recently in HEAD.  I
>>>don't think it could fix the device timeout issues, however, it might
>>>help with the panics you were getting.  If you could give this fix a
>>>try, I'd be grateful.
>>>
>>>Cheers,
>>>Maxime
>>>
>>>      
>>>
>>Ok, I'll. If it seems okay, is it possible to commit it to RELENG_6?
>>    
>>
>
>That's the plan.  I'm actually waiting for feedback to know whether this
>helps make things better or not.  I'll ask re@ for permission to MFC it
>once I know it's good (I have no nve(4) hardware myself).
>  
>
I have installed the HEAD kernel. Is it necessary to upgrade the 
userland to HEAD too for testing your fixes?
There aren't great changes between RELENG_6 and HEAD afaik, and after 
doing some strong tests, I would
like to returtn to RELENG_6, thus it would be more convenient to left 
userland alone, but if it is required,
I'll upgrade completely to HEAD. What should I do?

Cheers,

Gábor Kövesdán