em0: Watchdog timeout -- resetting

[Damien Fleuriot]

We have tried POLLING here on Intel cards attached to the igb driver
(see my post entitled "High interrupt rate on a PF box + performance"
from 27/01/2011".

This broke carp *badly* and we switched back to interrupts.


You say a single thread eats up a full CPU core, can you post a top to
show the %interrupt and your smb process' usage ?


On 2/1/11 10:28 AM, Jack Vogel wrote:
> I don't test POLLING, sounds like its broken, I don't understand
> why you think you need you need it?  This hardware supports
> MSI why not use it?
> 
> Jack
> 
> 
> 2011/1/31 Lev Serebryakov <lev at freebsd.org>
> 
>> Hello, Freebsd-stable.
>> You wrote 1 февраля 2011 г., 10:24:16:
>>
>>>   And all connections are reset. Before latest commits to driver
>>> this system paniced in swi_clock. Now it works without panics, but
>>> seems, that problem is not fixed completely.
>>   I forgot to give one last pice of information: POLLING is in action.
>> Without it single thread copy from this server via SMB eats one core
>> of CPU completely.
>>
>> --
>> // Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>
>>
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