Re: [ovs-dev] [PATCH 1/1] [branch-1.4] [ofproto-dpif] Memory leak at specific PACKET_INs

Tue, 21 May 2013 06:22:10 -0700 

Hi,
Sorry, I've forgot to answer this question. There aren't any other ovs messages in the log, just these. And they only appear if I register a controller (DVSC in my case) and send every traffic to the controller with this rule: 

ovs-ofctl add-flow xenbr0 priority=65535,actions=controller


Even without any particular load these appear after a while, but quite 
rarely, and in these short batches.


Zoli

On 03/05/13 21:09, Ben Pfaff wrote:

Thanks.  Do these messages appear in the log just as you show them, or
are they interspersed with other messages?

On Fri, May 03, 2013 at 05:40:57PM +0100, Zoltan Kiss wrote:

Now I've tried with the latest 1.4 code, but it still produces these
message intermittently. Here are some examples:

May  3 16:32:27 localhost ovs-vswitchd:
00093|ofproto_dpif|WARN|unexpected flow from datapath 
in_port(1),eth(src=00:21:1b:f3:63:45,dst=00:e0:ed:26:a9:bc),eth_type(0x0800),ipv4(src=10.80.2.155,dst=10.80.227.83,proto=6,tos=0x10,ttl=62,frag=no),tcp(src=53495,dst=22)
May  3 16:32:28 localhost ovs-vswitchd:
00094|ofproto_dpif|WARN|unexpected flow from datapath 
in_port(1),eth(src=00:21:1b:f3:63:45,dst=00:e0:ed:26:a9:bc),eth_type(0x0800),ipv4(src=10.80.2.155,dst=10.80.227.83,proto=6,tos=0x10,ttl=62,frag=no),tcp(src=53495,dst=22)
May  3 16:32:29 localhost ovs-vswitchd:
00095|ofproto_dpif|WARN|unexpected flow from datapath 
in_port(1),eth(src=00:21:1b:f3:63:45,dst=00:e0:ed:26:a9:bc),eth_type(0x0800),ipv4(src=10.80.2.155,dst=10.80.227.83,proto=6,tos=0x10,ttl=62,frag=no),tcp(src=53495,dst=22)
May  3 16:32:30 localhost ovs-vswitchd:
00096|ofproto_dpif|WARN|unexpected flow from datapath 
in_port(1),eth(src=00:21:1b:f3:63:45,dst=00:e0:ed:26:a9:bc),eth_type(0x0800),ipv4(src=10.80.2.155,dst=10.80.227.83,proto=6,tos=0x10,ttl=62,frag=no),tcp(src=53495,dst=22)

Regards,

Zoli

On 30/04/13 23:16, Ben Pfaff wrote:

Commit fdd80c39b1822db6c8b5c (datapath: Check gso_type for correct
sk_buff in queue_gso_packets().) could be related, but I am not
certain.  It's the mostly likely known-fixed problem I see in a quick
scan of branch-1.4 commits following cc8ccb5.

Could you provide a log excerpt that includes some of these messages?

On Tue, Apr 30, 2013 at 10:08:20AM +0100, Zoltan Kiss wrote:

Hi,

The latest commit we included in XS 6.1 is cc8ccb5 (26 Jun 2012
14:43:54: lib: Do not assume sig_atomic_t is int)

Regards,

Zoli

On 25/04/13 19:25, Ben Pfaff wrote:

It's not "normal".  It indicates a bug, although if they are only seen
occasionally it is not a big deal.  What commit is the original XS 6.1
OVS based on?

On Wed, Apr 24, 2013 at 09:48:32PM +0100, Zoltan Kiss wrote:

Hi,

Thanks, I've made my comments on that thread. Another related
question came to my mind: I've seen from time to time some
"ofproto_dpif|WARN|unexpected flow from datapath" messages, not just
with these patches but with the original XS 6.1 ovs. I couldn't see
a pattern in the type of flows. Is this normal?






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