What does "mfi0: Copy out failed" mean?

[Scott Long]

Václav Haisman wrote:
> Steve Polyack wrote, On 13.8.2009 18:19:
>> Václav Haisman wrote:
>>> Steve Polyack wrote:
>>>
>>>> Václav Haisman wrote:
>>>>
>>>>> I am getting "mfi0: Copy out failed" message in logs, usually
>>>>> several times a day. What does it mean? This is FreeBSD 7.2.
>>>>>
>>>> I can't tell you exactly what the error message means, but out of
>>>> curiosity what kind of hardware are you running? A PERC6 controller 
>>>> perhaps?
>>>>
>>> Yes, mfi0: <Dell PERC 6>.
>>>
>>>
>> You may want to contact Scott Long, scottl at freebsd.org, to see if he can 
>> help.  I believe he's the author/maintainer of the mfi(4) driver.  He may
>> be interested in any problems you've seen.  I've heard of some other 
>> people having issues with PERC6 cards and FreeBSD as well.
> Hi, I was just curious if the "mfi0: Copy out failed" message in the logs was
> something I should be worried about. The box seems to be working fine. The
> system is FreeBSD 7.2-STABLE #0: built on Sun Jul 26 15:06:46 CEST 2009, AMD64.
> 
> --
> VH
> 

Actually, I have no idea what it means.  That message needs to print an
error code, and it doesn't.  If you're comfortable with your C coding
fu, change the driver to print the error that triggers the message as
part of the message.

Scott