em, bge, network problems survey.

O. Hartmann ohartman at uni-mainz.de
Fri Oct 6 09:21:41 UTC 2006


Kris Kennaway wrote:
> On Thu, Oct 05, 2006 at 11:17:33PM +0200, O. Hartmann wrote:
>> Kris Kennaway wrote:
>>> On Wed, Oct 04, 2006 at 05:14:27PM -0600, Scott Long wrote:
>>>   
>>>> All,
>>>>
>>>> I'm seeing some patterns here with all of the network driver problem 
>>>> reports, but I need more information to help narrow it down further.
>>>> I ask all of you who are having problems to take a minute to fill
>>>> out this survey and return it to Kris Kennaway (on cc:) and myself.
>>>> Thanks.
>>>>
>>>> 1. Are you experiencing network hangs and/or "timeout" messages on the 
>>>> console?  If yes, please provide a _brief_ description of the problem.
>>>>     
>>> OK, next question, to all em users:
>>>
>>> If your em device is using a shared interrupt, and you are NOT
>>> experiencing timeout problems when using this device, please let me
>>> know:
>>>
>>> dalki# vmstat -i
>>> interrupt                          total       rate
>>> irq4: sio0                          2071          0
>>> irq6: fdc0                            10          0
>>> irq14: ata0                           47          0
>>> irq20: ahd0                        21755          4
>>> irq23: em0                        124751         23 <-- not a shared interrupt
>>> irq24: ahd1                           15          0
>>> cpu0: timer                     10453509       1999
>>> Total                           10602158       2027
>>>
>>> tyan# vmstat -i
>>> interrupt                          total       rate
>>> irq14: ata0                           58          0
>>> irq16: em0 fxp1                   332832        851 <-- shared interrupt
>>> irq18: fxp0                          973          2
>>> irq19: atapci1                    132883        339
>>> cpu0: timer                       774308       1980
>>> cpu1: timer                       777136       1987
>>> Total                            2018190       5161
>>>
>>> So far all of the em problems I have seen involve shared interrupts,
>>> and conversely all em systems I have seen that do not have timeout
>>> problems are not shared.
>>>
>>> Kris
>>>
>>>   
>> And so looks mine, FreeBSD 6.2-PRE/AMD64,
>> high I/O on disks and I/O on net renders this box unusuable ...
>>
>>
>> thor# vmstat -i
>> interrupt                          total       rate
>> irq1: atkbd0                       12437          1
>> irq6: fdc0                            27          0
>> irq12: psm0                       335285         42
>> irq14: ata0                          215          0
>> irq17: fwohci0                         1          0
>> irq20: atapci1                    102616         12
>> irq21: ohci0+                          2          0
>> irq22: nve0 ehci0                7594338        956
>> irq23: pcm0                        41007          5
>> cpu0: timer                     31752206       3999
>> Total                           39838134       5018
> 
> You don't appear to be using the em driver.  Can you confirm?
> 
> Kris

positive.


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