RELENG_7_1: bce driver change generating too much interrupts ?

[Danny Braniss]

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> Hi, Nawfal,
> 
> Nawfal bin Mohmad Rouyan wrote:
> > I have been using a Dell machine with 2 bce interfaces as a bridge
> > between my LAN and Firewall to shape the traffic. Since after the
> > update, the machine can only run for a few minutes and after that no
> > more connection can go through.
> > 
> > Ping from LAN to Internet is OK but when I telnet say to www.yahoo.com
> > at port 80 and issue "GET / HTTP/1.0" I can see the data of different
> > application including the HTML text.
> > 
> > For example, I can see uTorrent packets with binaries and also the HTML
> > page being cut short. It's as if, I'm seeing packets jumbled together
> > from different application.
> > 
> > I'm using PF to shape the traffic. If I reboot the server, it will panic
> > and I have about 3 different vmcores in /var/crash and not sure what to
> > do with it :( . I've tested the patch to remove
> > stat_IfInFramesL2FilterDiscards but the problem still occurs.
> 
> The last patch is not a functional change, but a behavior change that
> removes the L2FilterDiscards from being counted to match previous behavior.
> 
> Would you please do this:
> 
> script bt.txt kgdb /boot/kernel/kernel.symbols /var/crash/vmcore.0
> 
> Then, do 'bt', press enter until all display has finished, then exit
> kgdb, and send me the result (bt.txt)?
> 
> > As for now, I'm not using the server to shape the traffic because I
> > suspect the driver isn't reliable. I'm going to revert back to the
> > previous driver and hopes its going to work.
> > 
> > Sorry if there is not much detail since I'm not sure what to provide.
> > Just tell me what to provide and I'd be happy to do so.

I don't know if the following is related, but:
- while stress testing nfs/zfs, I get many weird things on the server 
(dell-2950/bce)
example:
	impossible packet length (33555456) from nfs server fr-01:/vol/system/share
	impossible packet length (1792323116) from nfs server fr-01:/vol/system/share
	...
and things get worse soon after. Now, there are no input errors, so it seems 
some memory starvation are not properly handled ...

cheers,
	danny