Re: Packet corruption in re0

Pyun YongHyeon wrote:
> On Thu, Feb 21, 2008 at 02:47:43PM +1000, Robert Backhaus wrote:
>  > On Thu, Feb 21, 2008 at 1:50 PM, Pyun YongHyeon <pyunyh_at_gmail.com> wrote:
>  > > On Thu, Feb 21, 2008 at 11:03:02AM +1000, Robert Backhaus wrote:
>  > >   > I am experiencing roughly 15% packet corruption on the re interface 
on
>  > >   > my freebsd 7/amd64  box.
>  > >   >
>  > >   > FreeBSD gw.flexi.robbak.com 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #8
:
>  > >   > Tue Feb  5 09:49:55 EST 2008
>  > >   > root_at_gw.flexi.robbak.com:/usr/obj/usr/src/sys/GW  amd64
>  > >   >
>  > >   > Just to make troubleshooting difficult, this problem only shows up
>  > >   > after the system has been up for roughly 36 hours, depending on the
>  > >   > amount of traffic.
>  > >   >
>  > >
>  > >  I didn't take a look attached tcpdump files but I guess the
>  > >  instability issue was fixed in HEAD. It's not yet MFCed but
>  > >  I'll handle it in a week.
>  > >
>  > >  Would you try re(4) in HEAD?
>  > >
>  > 
>  > OK, I'll do that. What is the best way to do that? csupping to "." seems a
>  > bit drastic, and I don't do much with cvs proper. I take it that I should 
use
>  > anon-cvs to grab the directory, but I don't quite know how.
>  > 
> 
> Copy sys/dev/re/if_re.c, sys/pci/if_rlreg.h in HEAD to your box.
> Due to lack of m_defrag(9) in 7-PRERELEASE/RC, you also have to add
> that function to if_re.c(Copy m_defrag() in sys/kern/uipc_mbuf.c on
> HEAD/RELENG_7 to if_re.c). That would make it build on your box.

This doesn't solve the problem that I'm seeing on re(4) interfaces.
It basically shows up as quagga establishing OSPF neighours as
"Exchange/DR" when VLAN hardware tagging is enabled.  I'm running
OSPF over 802.1Q vlans.  Neighbours are correctly negotiated once
VLAN hardware tagging is disabled on the interface.

I'll do more debugging.

Ian

--
Ian Freislich