Re: [ovs-dev] [PATCH v2 3/4] Add file descriptor persistence where possible

Anton Ivanov Mon, 24 Feb 2020 07:00:03 -0800

This is not an stp failure, it is stp showing an underlying netdev-dummy issue 
similar to the netlink one earlier on.


Brgds,

A.

On 24/02/2020 12:58, Dumitru Ceara wrote:

On Mon, Feb 24, 2020 at 11:47 AM Anton Ivanov
<[email protected]> wrote:



On 19/02/2020 14:20, Dumitru Ceara wrote:

On 2/18/20 7:12 AM, Anton Ivanov wrote:


On 17/02/2020 14:48, Dumitru Ceara wrote:

On 2/14/20 6:54 PM, [email protected] wrote:

From: Anton Ivanov <[email protected]>

1. Adds "persistent" behaviour where feasible (streams and signals).
These are waited upon in the same thread where they are created. This
allows them to be registered persistently with the OS (if possible)
as well as the OS to provide hints - is the FD ready, is it closed,
etc.

2. Removes unnecessary attempts to perform a read vs EAGAIN on a fd
which is not ready if that fd has been registered as "private" to the
thread which waits upon it.

3. No longer breaks other parts of OVS which create the fd in one
thread and waits upon it in others.

3. Adds support for EPOLL on Linux and can be expanded to cover similar
poll++ frameworks in other OSes.

4. Sets up the necessary infrastructure to make IO/SSL multi-threaded
using a "centeral (e)poll dispatcher + IO threads" pattern

Signed-off-by: Anton Ivanov <[email protected]>

Hi Anton,

A couple of issues inline. Except for that:

1. The "STP - flush the fdb and mdb when topology changed" OVS test is
failing with your patches applied:

make check TESTSUITEFLAGS='-k "flush the fdb"'

I will have a look.



I cannot reproduce that. It succeeds every time - 20 out of 20 runs. Can you 
send me some logs please?


Hi Anton,

After rebasing to latest upstream master I see the failure less often.
But it's still there.

I pasted the testsuite below.

Regards,
Dumitru

$ cat tests/testsuite.dir/2185/testsuite.log
#                             -*- compilation -*-
2185. stp.at:467: testing STP - flush the fdb and mdb when topology changed ...
./stp.at:468: ovsdb-tool create conf.db
$abs_top_srcdir/vswitchd/vswitch.ovsschema
./stp.at:468: ovsdb-server --detach --no-chdir --pidfile --log-file
--remote=punix:$OVS_RUNDIR/db.sock
stderr:
2020-02-24T12:56:14Z|00001|vlog|INFO|opened log file
/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/ovsdb-server.log
./stp.at:468: sed < stderr '
/vlog|INFO|opened log file/d
/ovsdb_server|INFO|ovsdb-server (Open vSwitch)/d'
./stp.at:468: ovs-vsctl --no-wait init
./stp.at:468: ovs-vswitchd --enable-dummy --disable-system
--disable-system-route  --detach --no-chdir --pidfile --log-file
-vvconn -vofproto_dpif -vunixctl
stderr:
2020-02-24T12:56:14Z|00001|vlog|INFO|opened log file
/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/ovs-vswitchd.log
2020-02-24T12:56:14Z|00002|ovs_numa|INFO|Discovered 8 CPU cores on NUMA node 0
2020-02-24T12:56:14Z|00003|ovs_numa|INFO|Discovered 1 NUMA nodes and 8 CPU cores
2020-02-24T12:56:14Z|00004|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/db.sock:
connecting...
2020-02-24T12:56:14Z|00005|netlink_socket|INFO|netlink: could not
enable listening to all nsid (Operation not permitted)
2020-02-24T12:56:14Z|00006|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/db.sock:
connected
./stp.at:468: sed < stderr '
/ovs_numa|INFO|Discovered /d
/vlog|INFO|opened log file/d
/vswitchd|INFO|ovs-vswitchd (Open vSwitch)/d
/reconnect|INFO|/d
/dpif_netlink|INFO|Generic Netlink family .ovs_datapath. does not exist/d
/ofproto|INFO|using datapath ID/d
/netdev_linux|INFO|.*device has unknown hardware address family/d
/ofproto|INFO|datapath ID changed to fedcba9876543210/d
/dpdk|INFO|DPDK Disabled - Use other_config:dpdk-init to enable/d
/netlink_socket|INFO|netlink: could not enable listening to all nsid/d
/probe tc:/d
/tc: Using policy/d'
./stp.at:468: add_of_br 0
./stp.at:471:
     ovs-vsctl -- \
     set port br0 other_config:stp-enable=false -- \
     set bridge br0 datapath-type=dummy -- \
     set bridge br0 stp_enable=true mcast_snooping_enable=true \
     other-config:hwaddr=aa:66:aa:66:00:00 -- \
     add-br br1 -- \
     set port br1 other_config:stp-enable=false -- \
     set bridge br1 datapath-type=dummy -- \
     set bridge br1 stp_enable=true mcast_snooping_enable=true \
     other-config:hwaddr=aa:66:aa:66:00:01 -- \
     add-br br2 -- \
     set port br2 other_config:stp-enable=false -- \
     set bridge br2 datapath-type=dummy -- \
     set bridge br2 stp_enable=true mcast_snooping_enable=true \
     other-config:hwaddr=aa:66:aa:66:00:02

./stp.at:489: ovs-appctl vlog/set ofproto_dpif:dbg
./stp.at:490: ovs-appctl vlog/set ofproto_dpif_xlate:dbg
./stp.at:492: ovs-ofctl add-flow br0 action=normal
./stp.at:493: ovs-ofctl add-flow br1 action=normal
./stp.at:494: ovs-ofctl add-flow br2 action=normal
./stp.at:496:
     ovs-vsctl add-port br0 p1 -- \
         set interface p1 type=dummy
options:pstream=punix:$OVS_RUNDIR/p1.sock ofport_request=1
     ovs-vsctl add-port br0 p2 -- \
         set interface p2 type=dummy
options:stream=unix:$OVS_RUNDIR/p6.sock ofport_request=2
     ovs-vsctl add-port br1 p3 -- \
         set interface p3 type=dummy
options:stream=unix:$OVS_RUNDIR/p1.sock ofport_request=3
     ovs-vsctl add-port br1 p4 -- \
         set interface p4 type=dummy
options:pstream=punix:$OVS_RUNDIR/p4.sock ofport_request=4
     ovs-vsctl add-port br2 p5 -- \
         set interface p5 type=dummy
options:stream=unix:$OVS_RUNDIR/p4.sock ofport_request=5
     ovs-vsctl add-port br2 p6 -- \
         set interface p6 type=dummy
options:pstream=punix:$OVS_RUNDIR/p6.sock ofport_request=6

OK
warped
./stp.at:517: cat ovs-vswitchd.log |
grep 'disabled to listening' | sed '
   s/.*ofproto_dpif|.*|port .*:/port <>:/
'
warped
./stp.at:529: cat ovs-vswitchd.log |
grep 'learning to forwarding' | sed '
   s/.*ofproto_dpif|.*|port .*:/port <>:/
'
--- - 2020-02-24 13:56:14.337746686 +0100
+++ /home/dceara/git-repos/ovs/tests/testsuite.dir/at-groups/2185/stdout
2020-02-24 13:56:14.000000000 +0100
@@ -3,4 +3,5 @@
  port <>: STP state changed from learning to forwarding
  port <>: STP state changed from learning to forwarding
  port <>: STP state changed from learning to forwarding
+port <>: STP state changed from learning to forwarding

ovsdb-server.log:

2020-02-24T12:56:14.033Z|00001|vlog|INFO|opened log file 
/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/ovsdb-server.log
2020-02-24T12:56:14.038Z|00002|ovsdb_server|INFO|ovsdb-server (Open vSwitch) 
2.13.90

ovs-vswitchd.log:

2020-02-24T12:56:14.059Z|00001|vlog|INFO|opened log file 
/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/ovs-vswitchd.log
2020-02-24T12:56:14.061Z|00002|ovs_numa|INFO|Discovered 8 CPU cores on NUMA 
node 0
2020-02-24T12:56:14.061Z|00003|ovs_numa|INFO|Discovered 1 NUMA nodes and 8 CPU 
cores
2020-02-24T12:56:14.061Z|00004|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/db.sock:
 connecting...
2020-02-24T12:56:14.061Z|00005|netlink_socket|INFO|netlink: could not enable 
listening to all nsid (Operation not permitted)
2020-02-24T12:56:14.061Z|00006|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/db.sock:
 connected
2020-02-24T12:56:14.065Z|00007|bridge|INFO|ovs-vswitchd (Open vSwitch) 2.13.90
2020-02-24T12:56:14.091Z|00008|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports recirculation
2020-02-24T12:56:14.091Z|00009|ofproto_dpif|INFO|dummy@ovs-dummy: VLAN header 
stack length probed as 1
2020-02-24T12:56:14.091Z|00010|ofproto_dpif|INFO|dummy@ovs-dummy: MPLS label 
stack length probed as 3
2020-02-24T12:56:14.091Z|00011|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports truncate action
2020-02-24T12:56:14.091Z|00012|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports unique flow ids
2020-02-24T12:56:14.091Z|00013|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports clone action
2020-02-24T12:56:14.091Z|00014|ofproto_dpif|INFO|dummy@ovs-dummy: Max sample 
nesting level probed as 10
2020-02-24T12:56:14.091Z|00015|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports eventmask in conntrack action
2020-02-24T12:56:14.091Z|00016|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_clear action
2020-02-24T12:56:14.091Z|00017|ofproto_dpif|INFO|dummy@ovs-dummy: Max dp_hash 
algorithm probed to be 1
2020-02-24T12:56:14.091Z|00018|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports check_pkt_len action
2020-02-24T12:56:14.091Z|00019|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports timeout policy in conntrack action
2020-02-24T12:56:14.091Z|00020|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_state
2020-02-24T12:56:14.091Z|00021|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_zone
2020-02-24T12:56:14.091Z|00022|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_mark
2020-02-24T12:56:14.091Z|00023|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_label
2020-02-24T12:56:14.091Z|00024|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_state_nat
2020-02-24T12:56:14.091Z|00025|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_orig_tuple
2020-02-24T12:56:14.091Z|00026|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports ct_orig_tuple6
2020-02-24T12:56:14.091Z|00027|ofproto_dpif|INFO|dummy@ovs-dummy: Datapath 
supports IPv6 ND Extensions
2020-02-24T12:56:14.100Z|00028|bridge|INFO|bridge br0: added interface br0 on 
port 65534
2020-02-24T12:56:14.101Z|00029|bridge|INFO|bridge br0: using datapath ID 
fedcba9876543210
2020-02-24T12:56:14.101Z|00030|connmgr|INFO|br0: added service controller 
"punix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/br0.mgmt"
2020-02-24T12:56:14.113Z|00031|bridge|INFO|bridge br2: added interface br2 on 
port 65534
2020-02-24T12:56:14.113Z|00032|bridge|INFO|bridge br1: added interface br1 on 
port 65534
2020-02-24T12:56:14.113Z|00033|bridge|INFO|bridge br2: using datapath ID 
0000aa66aa660002
2020-02-24T12:56:14.113Z|00034|connmgr|INFO|br2: added service controller 
"punix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/br2.mgmt"
2020-02-24T12:56:14.113Z|00035|bridge|INFO|bridge br1: using datapath ID 
0000aa66aa660001
2020-02-24T12:56:14.113Z|00036|connmgr|INFO|br1: added service controller 
"punix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/br1.mgmt"
2020-02-24T12:56:14.120Z|00037|unixctl|DBG|received request 
vlog/set["ofproto_dpif:dbg"], id=0
2020-02-24T12:56:14.120Z|00038|unixctl|DBG|replying with success, id=0: ""
2020-02-24T12:56:14.124Z|00039|unixctl|DBG|received request 
vlog/set["ofproto_dpif_xlate:dbg"], id=0
2020-02-24T12:56:14.124Z|00040|unixctl|DBG|replying with success, id=0: ""
2020-02-24T12:56:14.129Z|00041|vconn|DBG|unix#2: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x1):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.129Z|00042|vconn|DBG|unix#2: received: OFPT_HELLO (xid=0x1):
  version bitmap: 0x01
2020-02-24T12:56:14.129Z|00043|vconn|DBG|unix#2: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.129Z|00044|vconn|DBG|unix#2: received: OFPST_TABLE request 
(xid=0x2):
2020-02-24T12:56:14.130Z|00045|vconn|DBG|unix#2: sent (Success): OFPST_TABLE 
reply (xid=0x2):
   table 0:
     active=0, lookup=0, matched=0
     max_entries=1000000
     matching:
       exact match or wildcard: in_port eth_{src,dst,type} vlan_{vid,pcp} 
ip_{src,dst} nw_{proto,tos} tcp_{src,dst}

   tables 1...253: ditto
2020-02-24T12:56:14.130Z|00046|vconn|DBG|unix#3: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x2):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.130Z|00047|vconn|DBG|unix#3: received: OFPT_HELLO (xid=0x3):
  version bitmap: 0x01
2020-02-24T12:56:14.130Z|00048|vconn|DBG|unix#3: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.130Z|00049|vconn|DBG|unix#3: received: 
OFPT_FEATURES_REQUEST (xid=0x4):
2020-02-24T12:56:14.130Z|00050|vconn|DBG|unix#3: sent (Success): 
OFPT_FEATURES_REPLY (xid=0x4): dpid:fedcba9876543210
n_tables:254, n_buffers:0
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src 
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
  LOCAL(br0): addr:aa:66:aa:66:00:00
      config:     0
      state:      0
      speed: 0 Mbps now, 0 Mbps max
2020-02-24T12:56:14.131Z|00051|vconn|DBG|unix#4: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x3):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.131Z|00052|vconn|DBG|unix#4: received: OFPT_HELLO (xid=0x5):
  version bitmap: 0x01
2020-02-24T12:56:14.131Z|00053|vconn|DBG|unix#4: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.131Z|00054|vconn|DBG|unix#4: received: OFPT_FLOW_MOD 
(xid=0x6): ADD actions=NORMAL
2020-02-24T12:56:14.131Z|00055|vconn|DBG|unix#4: received: OFPT_BARRIER_REQUEST 
(xid=0x7):
2020-02-24T12:56:14.131Z|00056|vconn|DBG|unix#4: sent (Success): 
OFPT_BARRIER_REPLY (xid=0x7):
2020-02-24T12:56:14.131Z|00057|connmgr|INFO|br0<->unix#4: 1 flow_mods in the 
last 0 s (1 adds)
2020-02-24T12:56:14.136Z|00058|vconn|DBG|unix#5: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x4):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.136Z|00059|vconn|DBG|unix#5: received: OFPT_HELLO (xid=0x1):
  version bitmap: 0x01
2020-02-24T12:56:14.136Z|00060|vconn|DBG|unix#5: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.136Z|00061|vconn|DBG|unix#5: received: OFPST_TABLE request 
(xid=0x2):
2020-02-24T12:56:14.136Z|00062|vconn|DBG|unix#5: sent (Success): OFPST_TABLE 
reply (xid=0x2):
   table 0:
     active=1, lookup=0, matched=0
     max_entries=1000000
     matching:
       exact match or wildcard: in_port eth_{src,dst,type} vlan_{vid,pcp} 
ip_{src,dst} nw_{proto,tos} tcp_{src,dst}

   table 1:
     active=0, lookup=0, matched=0
     (same features)

   tables 2...253: ditto
2020-02-24T12:56:14.137Z|00063|vconn|DBG|unix#6: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x5):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.137Z|00064|vconn|DBG|unix#6: received: OFPT_HELLO (xid=0x3):
  version bitmap: 0x01
2020-02-24T12:56:14.137Z|00065|vconn|DBG|unix#6: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.137Z|00066|vconn|DBG|unix#6: received: 
OFPT_FEATURES_REQUEST (xid=0x4):
2020-02-24T12:56:14.137Z|00067|vconn|DBG|unix#6: sent (Success): 
OFPT_FEATURES_REPLY (xid=0x4): dpid:0000aa66aa660001
n_tables:254, n_buffers:0
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src 
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
  LOCAL(br1): addr:aa:66:aa:66:00:01
      config:     0
      state:      0
      speed: 0 Mbps now, 0 Mbps max
2020-02-24T12:56:14.137Z|00068|vconn|DBG|unix#7: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x6):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.137Z|00069|vconn|DBG|unix#7: received: OFPT_HELLO (xid=0x5):
  version bitmap: 0x01
2020-02-24T12:56:14.137Z|00070|vconn|DBG|unix#7: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.138Z|00071|vconn|DBG|unix#7: received: OFPT_FLOW_MOD 
(xid=0x6): ADD actions=NORMAL
2020-02-24T12:56:14.138Z|00072|vconn|DBG|unix#7: received: OFPT_BARRIER_REQUEST 
(xid=0x7):
2020-02-24T12:56:14.138Z|00073|vconn|DBG|unix#7: sent (Success): 
OFPT_BARRIER_REPLY (xid=0x7):
2020-02-24T12:56:14.138Z|00074|connmgr|INFO|br1<->unix#7: 1 flow_mods in the 
last 0 s (1 adds)
2020-02-24T12:56:14.143Z|00075|vconn|DBG|unix#8: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x7):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.143Z|00076|vconn|DBG|unix#8: received: OFPT_HELLO (xid=0x1):
  version bitmap: 0x01
2020-02-24T12:56:14.143Z|00077|vconn|DBG|unix#8: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.143Z|00078|vconn|DBG|unix#8: received: OFPST_TABLE request 
(xid=0x2):
2020-02-24T12:56:14.143Z|00079|vconn|DBG|unix#8: sent (Success): OFPST_TABLE 
reply (xid=0x2):
   table 0:
     active=1, lookup=0, matched=0
     max_entries=1000000
     matching:
       exact match or wildcard: in_port eth_{src,dst,type} vlan_{vid,pcp} 
ip_{src,dst} nw_{proto,tos} tcp_{src,dst}

   table 1:
     active=0, lookup=0, matched=0
     (same features)

   tables 2...253: ditto
2020-02-24T12:56:14.144Z|00080|vconn|DBG|unix#9: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x8):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.144Z|00081|vconn|DBG|unix#9: received: OFPT_HELLO (xid=0x3):
  version bitmap: 0x01
2020-02-24T12:56:14.144Z|00082|vconn|DBG|unix#9: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.144Z|00083|vconn|DBG|unix#9: received: 
OFPT_FEATURES_REQUEST (xid=0x4):
2020-02-24T12:56:14.144Z|00084|vconn|DBG|unix#9: sent (Success): 
OFPT_FEATURES_REPLY (xid=0x4): dpid:0000aa66aa660002
n_tables:254, n_buffers:0
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src 
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
  LOCAL(br2): addr:aa:66:aa:66:00:02
      config:     0
      state:      0
      speed: 0 Mbps now, 0 Mbps max
2020-02-24T12:56:14.144Z|00085|vconn|DBG|unix#10: sent (Success): OFPT_HELLO 
(OF1.5) (xid=0x9):
  version bitmap: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06
2020-02-24T12:56:14.144Z|00086|vconn|DBG|unix#10: received: OFPT_HELLO 
(xid=0x5):
  version bitmap: 0x01
2020-02-24T12:56:14.144Z|00087|vconn|DBG|unix#10: negotiated OpenFlow version 
0x01 (we support version 0x06 and earlier, peer supports version 0x01)
2020-02-24T12:56:14.145Z|00088|vconn|DBG|unix#10: received: OFPT_FLOW_MOD 
(xid=0x6): ADD actions=NORMAL
2020-02-24T12:56:14.145Z|00089|vconn|DBG|unix#10: received: 
OFPT_BARRIER_REQUEST (xid=0x7):
2020-02-24T12:56:14.145Z|00090|vconn|DBG|unix#10: sent (Success): 
OFPT_BARRIER_REPLY (xid=0x7):
2020-02-24T12:56:14.145Z|00091|connmgr|INFO|br2<->unix#10: 1 flow_mods in the 
last 0 s (1 adds)
2020-02-24T12:56:14.154Z|00092|bridge|INFO|bridge br0: added interface p1 on 
port 1
2020-02-24T12:56:14.154Z|00093|ofproto_dpif|DBG|port p1: STP state changed from 
disabled to listening
2020-02-24T12:56:14.164Z|00094|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connecting...
2020-02-24T12:56:14.164Z|00095|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connection attempt failed (No such file or directory)
2020-02-24T12:56:14.164Z|00096|bridge|INFO|bridge br0: added interface p2 on 
port 2
2020-02-24T12:56:14.164Z|00097|ofproto_dpif|DBG|port p2: STP state changed from 
disabled to listening
2020-02-24T12:56:14.174Z|00098|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connecting...
2020-02-24T12:56:14.174Z|00099|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connection attempt failed (No such file or directory)
2020-02-24T12:56:14.174Z|00100|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p1.sock:
 connecting...
2020-02-24T12:56:14.174Z|00101|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p1.sock:
 connected
2020-02-24T12:56:14.174Z|00102|bridge|INFO|bridge br1: added interface p3 on 
port 3
2020-02-24T12:56:14.174Z|00103|ofproto_dpif|DBG|port p3: STP state changed from 
disabled to listening
2020-02-24T12:56:14.183Z|00104|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connecting...
2020-02-24T12:56:14.183Z|00105|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connection attempt failed (No such file or directory)
2020-02-24T12:56:14.184Z|00106|bridge|INFO|bridge br1: added interface p4 on 
port 4
2020-02-24T12:56:14.184Z|00107|ofproto_dpif|DBG|port p4: STP state changed from 
disabled to listening
2020-02-24T12:56:14.193Z|00108|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connecting...
2020-02-24T12:56:14.193Z|00109|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connection attempt failed (No such file or directory)
2020-02-24T12:56:14.193Z|00110|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p4.sock:
 connecting...
2020-02-24T12:56:14.193Z|00111|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p4.sock:
 connected
2020-02-24T12:56:14.193Z|00112|bridge|INFO|bridge br2: added interface p5 on 
port 5
2020-02-24T12:56:14.193Z|00113|ofproto_dpif|DBG|port p5: STP state changed from 
disabled to listening
2020-02-24T12:56:14.203Z|00114|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connecting...
2020-02-24T12:56:14.203Z|00115|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connection attempt failed (No such file or directory)
2020-02-24T12:56:14.203Z|00116|bridge|INFO|bridge br2: added interface p6 on 
port 6
2020-02-24T12:56:14.203Z|00117|ofproto_dpif|DBG|port p6: STP state changed from 
disabled to listening
2020-02-24T12:56:14.208Z|00118|unixctl|DBG|received request 
netdev-dummy/set-admin-state["up"], id=0
2020-02-24T12:56:14.208Z|00119|unixctl|DBG|replying with success, id=0: "OK"
2020-02-24T12:56:14.212Z|00120|unixctl|DBG|received request time/stop[], id=0
2020-02-24T12:56:14.212Z|00121|unixctl|DBG|replying with success, id=0: ""
2020-02-24T12:56:14.215Z|00122|unixctl|DBG|received request 
time/warp["6000","3000"], id=0
2020-02-24T12:56:14.225Z|00123|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connecting...
2020-02-24T12:56:14.225Z|00124|reconnect|INFO|unix:/home/dceara/git-repos/ovs/tests/testsuite.dir/2185/p6.sock:
 connected
2020-02-24T12:56:14.225Z|00125|unixctl|DBG|replying with success, id=0: "warped"
2020-02-24T12:56:14.236Z|00126|ofproto_dpif_xlate|DBG|/proc/sys/net/core/netdev_max_backlog:
 using 1000 max_backlog
2020-02-24T12:56:14.236Z|00127|unixctl|DBG|received request 
time/warp["30000","3000"], id=0
2020-02-24T12:56:14.257Z|00128|memory|INFO|14512 kB peak resident set size 
after 12.2 seconds
2020-02-24T12:56:14.257Z|00129|memory|INFO|handlers:5 ports:9 revalidators:3 
rules:17
2020-02-24T12:56:14.268Z|00130|ofproto_dpif|DBG|port p2: STP state changed from 
listening to learning
2020-02-24T12:56:14.268Z|00131|ofproto_dpif|DBG|port p1: STP state changed from 
listening to learning
2020-02-24T12:56:14.268Z|00132|ofproto_dpif|DBG|port p6: STP state changed from 
listening to learning
2020-02-24T12:56:14.268Z|00133|ofproto_dpif|DBG|port p5: STP state changed from 
listening to learning
2020-02-24T12:56:14.268Z|00134|ofproto_dpif|DBG|port p3: STP state changed from 
listening to learning
2020-02-24T12:56:14.268Z|00135|ofproto_dpif|DBG|port p4: STP state changed from 
listening to learning
2020-02-24T12:56:14.280Z|00001|ovs_rcu(urcu3)|WARN|blocked 3000 ms waiting for 
main to quiesce
2020-02-24T12:56:14.280Z|00002|ovs_rcu(urcu3)|WARN|blocked 3000 ms waiting for 
main to quiesce
2020-02-24T12:56:14.323Z|00136|stp|INFO|br0: detected topology change.
2020-02-24T12:56:14.323Z|00137|stp|INFO|br0: detected topology change.
2020-02-24T12:56:14.323Z|00138|ofproto_dpif|DBG|port p2: STP state changed from 
learning to forwarding
2020-02-24T12:56:14.323Z|00139|ofproto_dpif|DBG|port p1: STP state changed from 
learning to forwarding
2020-02-24T12:56:14.323Z|00140|stp|INFO|br2: detected topology change.
2020-02-24T12:56:14.323Z|00141|stp|INFO|br2: detected topology change.
2020-02-24T12:56:14.323Z|00142|ofproto_dpif|DBG|port p6: STP state changed from 
learning to forwarding
2020-02-24T12:56:14.323Z|00143|ofproto_dpif|DBG|port p5: STP state changed from 
learning to forwarding
2020-02-24T12:56:14.323Z|00144|stp|INFO|br1: detected topology change.
2020-02-24T12:56:14.323Z|00145|ofproto_dpif|DBG|port p3: STP state changed from 
learning to forwarding
2020-02-24T12:56:14.323Z|00146|ofproto_dpif|DBG|port p4: STP state changed from 
learning to forwarding
2020-02-24T12:56:14.334Z|00147|unixctl|DBG|replying with success, id=0: "warped"

2185. stp.at:467: 2185. STP - flush the fdb and mdb when topology
changed (stp.at:467): FAILED (stp.at:529)


--
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
https://www.cambridgegreys.com/
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Re: [ovs-dev] [PATCH v2 3/4] Add file descriptor persistence where possible

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