em(4): discard frame w/o packet header (82547L on Supermicro X7SPA-H) on stable/8

[Jack Vogel]

Put DDB/KDB into the kernel and get me the stack trace when this
problem happens. Tell me exactly what the hardware is (pciconf).

Jack


On Fri, Sep 17, 2010 at 10:37 AM, Xin LI <delphij at delphij.net> wrote:

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> Hi,
>
> I have got a bit of em0: discard frame w/o packet header (and sometimes
> em1) and the system panics sometimes, the network traffic is not quite
> large.  This is fairly fresh stable/8 running under amd64, with pf,
> altq, openvpn (tun mode) and ipv6 enabled.
>
> So far I haven't found a way to reliably trigger the panic though.
>  Because of the watchdog  (the system is now on production) setting the
> system doesn't seem to be able to complete a minidump, will try textdump
> and see if it works.
>
> Suggestion on debugging?  Is this a known (fixed?) issue by the way?
>
> Cheers,
> - --
> Xin LI <delphij at delphij.net>    http://www.delphij.net/
> FreeBSD - The Power to Serve!          Live free or die
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