----- Original Message ----
> From: James Peltier <james_a_pelt...@yahoo.ca>
> To: misc@openbsd.org
> Sent: Tue, September 21, 2010 9:51:05 AM
> Subject: Re: em(4) ierrs
>
> ----- Original Message ----
>
> > From: James Peltier <james_a_pelt...@yahoo.ca>
> > To: misc@openbsd.org
> > Cc: misc@openbsd.org
> > Sent: Tue, September 21, 2010 9:46:40 AM
> > Subject: Re: em(4) ierrs
> >
> > ----- Original Message ----
> >
> > > From: Joerg Goltermann <go...@openbsd.org>
> > > To: Andre Keller <a...@list.ak.cx>
> > > Cc: misc@openbsd.org
> > > Sent: Tue, September 21, 2010 12:21:28 AM
> > > Subject: Re: em(4) ierrs
> > >
> > > On 20.09.2010 19:15, Andre Keller wrote:
> > > > Hi
> > > >
> > > >
> > > > I have some odd packet loss on a openbsd based router (running
>-current
> > > > as of the beginning of september....) .
> > > >
> > > > The router has 6 physical interfaces (all em, Intel 82575EB), 4 of
>them
> > > > have traffic (about 10-20 Mbps).
> > >
> > > which packet rate do you expect on the interfaces? Do you see
> > > livelocks (systat -b mbuf)?
> > >
> > > - Joerg
> >
> >
> > livelocks are seen on my em interfaces as well. I also have livelocks on
>my
>
> >far
> >
> > less busy bge1 management interface. See below
> >
> > IFACE LIVELOCKS SIZE ALIVE LWM HWM CWM
> > System 256 116 84
> > 2k 92 504
> > lo0
> > em0 29363 2k 37 4 256 37
> > em1 10174 2k 37 4 256 37
> > bge0
> > bge1 4 2k 17 17 512 17
> > enc0
> > vlan300
> > bridge0
> > pflog0
> > pflow0
>
>
> I should mention that these might have been made prior to some recent
> tuning.
>
> However, for the purpose of following this thread I will keep an eye on it
> to
>be
>
> sure.
>
>
I am in bridging mode and I too, am indeed seeing a slow increase in livelocks
on my em0 interfaces. Traffic has been quite low over the past week or so, so
it certainly shouldn't be an issue. The only modifications I have made thus
far
are to the net.inet.ip.ifq.maxlen bumped to 2048. If you want any other info
please let me know.
#sysctl -b mbuf
1 users Load 0.13 0.09 0.08 Tue Sep 21 20:22:30 2010
IFACE LIVELOCKS SIZE ALIVE LWM HWM CWM
System 256 98 84
2k 74 504
lo0
em0 29891 2k 29 4 256 29
em1 10381 2k 28 4 256 28
bge0
bge1 4 2k 17 17 512 17
enc0
vlan300
bridge0
pflog0
pflow0
# netstat -m
100 mbufs in use:
95 mbufs allocated to data
1 mbuf allocated to packet headers
4 mbufs allocated to socket names and addresses
74/1008/6144 mbuf 2048 byte clusters in use (current/peak/max)
0/8/6144 mbuf 4096 byte clusters in use (current/peak/max)
0/8/6144 mbuf 8192 byte clusters in use (current/peak/max)
0/8/6144 mbuf 9216 byte clusters in use (current/peak/max)
0/8/6144 mbuf 12288 byte clusters in use (current/peak/max)
0/8/6144 mbuf 16384 byte clusters in use (current/peak/max)
0/8/6144 mbuf 65536 byte clusters in use (current/peak/max)
2544 Kbytes allocated to network (6% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
#
---
James A. Peltier james_a_pelt...@yahoo.ca
