nve(4) timeout fix

[Scott Long]

Mike Jakubik wrote:
> John Baldwin wrote:
> 
>> On Friday 28 April 2006 14:32, Marcus Frings wrote:
>>  
>>
>>> * Nathan Whitehorn <nathanw at uchicago.edu> wrote:
>>>
>>>    
>>>
>>>> Also on the subject of nVidia NICs, I've fixed the device timeout
>>>> problem on nve(4). It appears that some revisions of the hardware don't
>>>> send interrupts on tx completion, which caused watchdog timeouts under
>>>> low load. We should take this hardware quirk into account for the nfe
>>>> port as well.
>>>>       
>>>
>>> I also applied this patch to my FreeBSD 6.1RC (Asus A8N-E) for testing
>>> and it works perfectly. By now I don't have any timeouts anymore!
>>>
>>> Will it be added to the official release of 6.1 or CURRENT?
>>>     
>>
>>
>> It's in current but is probably too late for 6.1.
>>
>>   
> 
> 
> Why is it too late? If it fixes a known stability problem, then why cant 
> it be commited? If no commits are allowed during the -RC phase, then 
> what is 6.1-RELEASE waiting for?
> 

Because there is always a last minute stream of bug fixes, and when you 
wait for one, another one comes up that you wait for, then another, etc,
etc.  At some point we have to draw the line.  Also, it's good to let
changes shake out for a few days before cutting a release.  It's not
uncommon for serious problems to be exposed several days after a commit.
SO again, we have to draw the line somewhere.

Scott