pending em0 commits for FreeBSD 8.1 STABLE
Bjoern A. Zeeb
bz at FreeBSD.org
Fri Oct 29 14:10:07 UTC 2010
On Fri, 29 Oct 2010, Mike Tancsa wrote:
> I dont think its an em bug as I can trigger this crash with the igb
> nic. Perhaps these are 2 different issues being hit ? Anyways, I tried with
Yes what you have down there looks *sigh* hopefully like a different
issue thought it mbuf fiddling again but way further up the stack.
Could you please concentrate on only reproducing the
if<n>: discard frame w/o packet header
issue rather than breaking things left and right as well? ;-)
> igb from HEAD in case there is some common code path between em and igb
> (2.0.1 vs 2.0.4). But the issue is still there
> In the netperf cluster its trivial to trigger this bug. Try this on camel and
> leopard1. Note bear1 is still on the console debugger as well in case you
> want to compare 2 different machines.
I shall when returning home tonight.
> camel1# route add -inet6 2607:f3e0:0:80::290 2607:f3e0:9::107
> add host 2607:f3e0:0:80::290: gateway 2607:f3e0:9::107
> Then start a ping on camel1. Then, with the ping is going, on leopard1 do an
> ifconfig em0 down. A few seconds later, the panic below
just to confirm, it's camel1 that paniced in this test, right?
> ip6_input() at ip6_input+0x28f
Could you look that up? feel free to reboot camel1. I would guess
it's the MCLGET() in the code with the "L2 bridge ..." comment on top?
Probably a m_clget() call if you look it up in gdb.
Bjoern A. Zeeb Welcome a new stage of life.
<ks> Going to jail sucks -- <bz> All my daemons like it!
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