em, bge, network problems survey.

Tue Oct 24 13:12:43 UTC 2006

Hello
This are our findings regarding the survey.
Mats Lindberg
Bombardier

1. Are you experiencing network hangs and/or "timeout" messages on the 
console?  If yes, please provide a _brief_ description of the problem.

>The system runs on an IBM i386 xSeries server and polls every 100 
milliseconds another machine using ethernet.
>We had a watchdog timeout in the network card and our application went 
down:
>Oct 22 04:14:26 fspa2 kernel: bge0: watchdog timeout -- resetting }

2. What version of FreeBSD is experiencing this problem?  When did the
problem start?

> FreeBSD 5.4, the problem appears randomly.

3. What network card is experiencing the problem?  If there is more than
one network card/port in the system, please state which ones are having
problems.  Optionally, describe the model of the network card, or attach
a dmesg output that shows it.

> There are two ethernet cards in the system, only bge0 is used, see dmesg 
output below

4. Is this an SMP or UP machine?  Is your kernel configured for SMP?

>UniProcessor
>See the attached sysctl -a output.

5. Is this machine capable of Hyperthreading (note that this is not the
same as multi-core, like the newer AMD and Intel chips)?  If so, is
Hyperthreading enabled or disabled in the BIOS?  If it is enabled, is
hyperthreading enabled or disabled in the kernel?

>This is the Kernel config file.
>include GENERIC
>ident          PREEMPTION-GENERIC
>options        PREEMPTION                      # kernel preemption
>options                SEMMNS=150
>options                SEMMSL=150

6. Is the 'apic' device configured in your kernel?  If so, does it 
appear to be active in the system?  An easy way to tell this is if
there are interrupt numbers greater than 15.  Another way to tell is
if there are 'ioapic' device messages early in the boot.

There are irq > 15 and there are 'ioapic' device messages early in the 
boot:
Oct 19 07:08:04 fspa2 kernel: ioapic2 <Version 2.0> irqs 48-71 on 
motherboard
Oct 19 07:08:04 fspa2 kernel: ioapic1 <Version 2.0> irqs 24-47 on 
motherboard
Oct 19 07:08:04 fspa2 kernel: ioapic0 <Version 2.0> irqs 0-23 on 
motherboard

7. Are you using any code patches or non-default configuration options?
No

8. Are you using the 4BSD or the ULE scheduler?

4BSD Sheduler

You are also welcome to attach a copy of your 'dmesg' output as well as
the output from 'vmstat -i'.  Please note that a verbose dmesg is not
needed.

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