em, bge, network problems survey.

Kris Kennaway kris at obsecurity.org
Thu Oct 5 21:45:08 UTC 2006


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
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