em, bge, network problems survey.

[Kris Kennaway]

On Fri, Oct 06, 2006 at 08:54:35AM +0200, Michal Mertl 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.
> 
> I haven't seen any timeout message in long time but I experience frozen
> network (and also the already reported panic when doing ifconfig down/up
> then).

Are these details in a PR?

> I have also seen strange problem which may be completely unrelated: When
> doing 'find . -ls' on SMB mounted drive - find was spitting the contents
> of the drive but never finishes. Network seemed dead but when I
> interrupted find with Ctrl-C I got the replies to the pings sent when it
> was running (e.g. thousands ms) - this looks like something was
> preventing RX to work and the packets were just queued somewhere. I
> belive I should be able to easily reproduce it.
> 
> genius# vmstat -i
> interrupt                          total       rate
> irq0: clk                       43784465       1000
> irq1: atkbd0                       66248          1
> irq5: pcm0                          5877          0
> irq8: rtc                        5603682        128
> irq9: acpi0                         8820          0
> irq11: fwohci0 em*                205749          4
> irq12: psm0                       586848         13
> irq14: ata0                       340844          7
> irq15: ata1                           61          0
> Total                           50602594       1155
> 
> I don't think I remember debug.mpsafenet tunable being mentioned in the
> threads about the problems. It prevents all the problems on my system
> (UP non-APIC system), including the SMB issue mentioned above.

I suspect both of your problems are some unrelated issue.  I'd need
root access & a test setup before I can say more though.

Kris
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