Hi Florin,

Following commit: 6c4dae27e75fc668f86c9cca0f3f58273b680621

I encounter a crash in BFD when running the extended test.

(The standard test set passes)


Attached is the log to the command (fastest way to crash):

# make test-all-debug V=0 TEST=*.BFDAPITestCase.test_activate_auth

Do you have an idea as to what's happening ?
I'm ready to help fixing this if you give me some pointers, I'm afraid I could 
not see anything obvious (to me) reading your commit.

Best regards,


--

Gabriel Ganne
make -C /home/sources/vpp/build-root PLATFORM=vpp TAG=vpp_debug vpp-install
make[1]: Entering directory `/home/sources/vpp/build-root'
@@@@ Arch for platform 'vpp' is native @@@@
@@@@ Finding source for dpdk @@@@
@@@@ Makefile fragment found in /home/sources/vpp/build-data/packages/dpdk.mk @@@@
@@@@ Source found in /home/sources/vpp/dpdk @@@@
@@@@ Arch for platform 'vpp' is native @@@@
@@@@ Finding source for vpp @@@@
@@@@ Makefile fragment found in /home/sources/vpp/build-data/packages/vpp.mk @@@@
@@@@ Source found in /home/sources/vpp/src @@@@
@@@@ Configuring dpdk: nothing to do @@@@
@@@@ Building dpdk: nothing to do @@@@
@@@@ Installing dpdk: nothing to do @@@@
@@@@ Configuring vpp: nothing to do @@@@
@@@@ Building vpp: nothing to do @@@@
@@@@ Installing vpp: nothing to do @@@@
make[1]: Leaving directory `/home/sources/vpp/build-root'
make -C test TEST_DIR=/home/sources/vpp/test VPP_TEST_BUILD_DIR=/home/sources/vpp/build-root/build-vpp_debug-native VPP_TEST_BIN=/home/sources/vpp/build-root/install-vpp_debug-native/vpp/bin/vpp VPP_TEST_PLUGIN_PATH=/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib/vpp_plugins:/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib64/vpp_plugins VPP_TEST_INSTALL_PATH=/home/sources/vpp/build-root/install-vpp_debug-native/ LD_LIBRARY_PATH=/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib/:/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib64/ EXTENDED_TESTS=yes PYTHON= OS_ID=rhel CACHE_OUTPUT= test
make[1]: Entering directory `/home/sources/vpp/test'
make -C ext
make[2]: Entering directory `/home/sources/vpp/test/ext'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/home/sources/vpp/test/ext'
10:19:21,006 Temporary dir is /tmp/vpp-unittest-SanityTestCase-KyhvkF, shm prefix is vpp-unittest-SanityTestCase-KyhvkF
10:19:21,006 vpp_cmdline: ['/home/sources/vpp/build-root/install-vpp_debug-native/vpp/bin/vpp', 'unix', '{', 'nodaemon', '', 'full-coredump', 'coredump-size unlimited', '}', 'api-trace', '{', 'on', '}', 'api-segment', '{', 'prefix', 'vpp-unittest-SanityTestCase-KyhvkF', '}', 'plugins', '{', 'plugin', 'dpdk_plugin.so', '{', 'disable', '}', '}', 'plugin_path', '/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib/vpp_plugins:/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib64/vpp_plugins']
10:19:21,008 Spawned VPP with PID: 7434
10:19:21,409 Starting sleep for 0.1s (after vpp startup, before initial poll)
10:19:21,509 Finished sleep (after vpp startup, before initial poll) - slept 0.100106954575s (wanted 0.1s)
10:19:21,521 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_tctbl_reply_4e2f524d
10:19:21,524 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_subport_reply_147f258a
10:19:21,524 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_tctbl_f9d98f13
10:19:21,525 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_pipe_be9b2181
10:19:21,528 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_pipe_reply_1222fa49
10:19:21,532 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_subport_05a9fa2c
10:19:21,534 Waiting for pump thread to stop
10:19:21,536 Sending TERM to vpp
10:19:21,536 Waiting for vpp to die
10:19:21,540 ------------------------------------------------------------------------------
10:19:21,540 VPP output to stdout while running SanityTestCase:
10:19:21,540 ------------------------------------------------------------------------------
10:19:21,540 

10:19:21,540 ------------------------------------------------------------------------------
10:19:21,540 ------------------------------------------------------------------------------
10:19:21,540 VPP output to stderr while running SanityTestCase:
10:19:21,540 ------------------------------------------------------------------------------
10:19:21,540 
vlib_plugin_early_init:356: plugin path /home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib/vpp_plugins:/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib64/vpp_plugins
load_one_plugin:184: Loaded plugin: acl_plugin.so (Access Control Lists)
load_one_plugin:103: Plugin disabled: dpdk_plugin.so
load_one_plugin:184: Loaded plugin: flowprobe_plugin.so (Flow per Packet)
load_one_plugin:184: Loaded plugin: gtpu_plugin.so (GTPv1-U)
load_one_plugin:184: Loaded plugin: ila_plugin.so (Identifier-locator addressing for IPv6)
load_one_plugin:184: Loaded plugin: ioam_plugin.so (Inbound OAM)
load_one_plugin:114: Plugin disabled (default): ixge_plugin.so
load_one_plugin:184: Loaded plugin: kubeproxy_plugin.so (kube-proxy data plane)
load_one_plugin:184: Loaded plugin: l2e_plugin.so (L2 Emulation)
load_one_plugin:184: Loaded plugin: lb_plugin.so (Load Balancer)
load_one_plugin:184: Loaded plugin: libsixrd_plugin.so (IPv6 Rapid Deployment on IPv4 Infrastructure (RFC5969))
load_one_plugin:184: Loaded plugin: memif_plugin.so (Packet Memory Interface (experimetal))
load_one_plugin:184: Loaded plugin: nat_plugin.so (Network Address Translation)
load_one_plugin:184: Loaded plugin: pppoe_plugin.so (PPPoE)
load_one_plugin:184: Loaded plugin: stn_plugin.so (VPP Steals the NIC for Container integration)
/home/sources/vpp/build-root/install-vpp_debug-native/vpp/bin/vpp[7434]: tapcli_config:559: tapcli disabled: must be superuser

10:19:21,540 ------------------------------------------------------------------------------
Adding tests from directory tree /home/sources/vpp/test
Running tests using custom test runner
Active filters: file=None, class=BFDAPITestCase, function=test_activate_auth
1 out of 595 tests match specified filters
10:19:21,920 Temporary dir is /tmp/vpp-unittest-BFDAPITestCase-iilC3D, shm prefix is vpp-unittest-BFDAPITestCase-iilC3D
10:19:21,920 vpp_cmdline: ['/home/sources/vpp/build-root/install-vpp_debug-native/vpp/bin/vpp', 'unix', '{', 'nodaemon', '', 'full-coredump', 'coredump-size unlimited', '}', 'api-trace', '{', 'on', '}', 'api-segment', '{', 'prefix', 'vpp-unittest-BFDAPITestCase-iilC3D', '}', 'plugins', '{', 'plugin', 'dpdk_plugin.so', '{', 'disable', '}', '}', 'plugin_path', '/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib/vpp_plugins:/home/sources/vpp/build-root/install-vpp_debug-native/vpp/lib64/vpp_plugins']
10:19:21,922 Spawned VPP with PID: 7462
10:19:22,316 Starting sleep for 0.1s (after vpp startup, before initial poll)
10:19:22,416 Finished sleep (after vpp startup, before initial poll) - slept 0.100131988525s (wanted 0.1s)
10:19:22,440 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_tctbl_reply_4e2f524d
10:19:22,443 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_subport_reply_147f258a
10:19:22,443 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_tctbl_f9d98f13
10:19:22,446 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_pipe_be9b2181
10:19:22,449 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_pipe_reply_1222fa49
10:19:22,455 No such message type or failed CRC checksum: sw_interface_set_dpdk_hqos_subport_05a9fa2c
10:19:22,458 API: pg_create_interface ({'interface_id': 0})
10:19:22,469 API: sw_interface_dump ({})
10:19:22,479 API: pg_create_interface ({'interface_id': 1})
10:19:22,490 API: sw_interface_dump ({})
10:19:22,490 API: sw_interface_add_del_address ({'address_length': 24, 'del_all': 0, 'is_add': 1, 'sw_if_index': 1, 'address': '\xac\x10\x01\x01', 'is_ipv6': 0})
10:19:22,501 API: sw_interface_add_del_address ({'address_length': 64, 'del_all': 0, 'is_add': 1, 'sw_if_index': 1, 'address': '\xfd\x01\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', 'is_ipv6': 1})
10:19:22,501 Sending ARP request for 172.16.1.1 on port pg0
10:19:22,502 CLI: packet-generator new pcap /tmp/vpp-unittest-BFDAPITestCase-iilC3D/pg0_in.pcap source pg0 name pcap1
10:19:22,512 CLI: packet-generator capture pg0 pcap /tmp/vpp-unittest-BFDAPITestCase-iilC3D/pg0_out.pcap
10:19:22,512 CLI: trace add pg-input 50
10:19:22,522 CLI: packet-generator enable
10:19:22,523 CLI: show trace
10:19:22,523 ------------------- Start of thread 0 vpp_main -------------------
Packet 1

00:00:00:527708: pg-input
  stream pcap1, 42 bytes, 1 sw_if_index
  current data 0, length 42, free-list 6, clone-count 0, trace 0x0
  ARP: 02:01:00:00:ff:02 -> ff:ff:ff:ff:ff:ff
  request, type ethernet/IP4, address size 6/4
  02:01:00:00:ff:02/172.16.1.2 -> 00:00:00:00:00:00/172.16.1.1


10:19:22,523 Waiting for capture file /tmp/vpp-unittest-BFDAPITestCase-iilC3D/pg0_out.pcap to appear, timeout is 1s
10:19:22,523 Capture file appeared after 0.000127s
10:19:22,523 Waiting for packet
10:19:22,524 Packet received after 0.000583s
10:19:22,524 VPP pg0 MAC address is 02:fe:dd:ae:63:1a 
10:19:22,524 API: sw_interface_add_del_address ({'address_length': 24, 'del_all': 0, 'is_add': 1, 'sw_if_index': 2, 'address': '\xac\x10\x02\x01', 'is_ipv6': 0})
10:19:22,534 API: sw_interface_add_del_address ({'address_length': 64, 'del_all': 0, 'is_add': 1, 'sw_if_index': 2, 'address': '\xfd\x01\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', 'is_ipv6': 1})
10:19:22,534 Sending ARP request for 172.16.2.1 on port pg1
10:19:22,535 CLI: packet-generator new pcap /tmp/vpp-unittest-BFDAPITestCase-iilC3D/pg1_in.pcap source pg1 name pcap2
10:19:22,544 CLI: packet-generator capture pg1 pcap /tmp/vpp-unittest-BFDAPITestCase-iilC3D/pg1_out.pcap
10:19:22,545 Starting sleep for 0.0574140548706s (before deleting capture pcap1)
10:19:22,602 Finished sleep (before deleting capture pcap1) - slept 0.0574970245361s (wanted 0.0574140548706s)
10:19:22,602 Removing zombie capture pcap1
10:19:22,602 CLI: packet-generator delete pcap1
10:19:22,606 CLI: trace add pg-input 50
10:19:22,606 CLI: packet-generator enable
10:19:22,616 CLI: show trace
10:19:22,617 ------------------- Start of thread 0 vpp_main -------------------
Packet 1

00:00:00:527708: pg-input
  stream 0, 42 bytes, 1 sw_if_index
  current data 0, length 42, free-list 6, clone-count 0, trace 0x0
  00000000: ffffffffffff02010000ff020806000108000604000102010000ff02ac100102
  00000020: 000000000000ac10010100000000000000000000000000000000000000000000
  00000040: 0000000000000000000000000000000000000000000000000000000000000000
  00000060: 0000000000000000000000000000000000000000000000000000000000000000
00:00:00:528203: ethernet-input
  ARP: 02:01:00:00:ff:02 -> ff:ff:ff:ff:ff:ff
00:00:00:528216: arp-input
  request, type ethernet/IP4, address size 6/4
  02:01:00:00:ff:02/172.16.1.2 -> 00:00:00:00:00:00/172.16.1.1
00:00:00:528452: pg0-output
  pg0
  ARP: 02:fe:dd:ae:63:1a -> 02:01:00:00:ff:02
  reply, type ethernet/IP4, address size 6/4
  02:fe:dd:ae:63:1a/172.16.1.1 -> 02:01:00:00:ff:02/172.16.1.2
00:00:00:528463: pg0-tx
    buffer 0x878: current data 0, length 42, free-list 6, clone-count 0, trace 0x0
                  l2-hdr-offset 0 l3-hdr-offset 14 
  ARP: 02:fe:dd:ae:63:1a -> 02:01:00:00:ff:02
  reply, type ethernet/IP4, address size 6/4
  02:fe:dd:ae:63:1a/172.16.1.1 -> 02:01:00:00:ff:02/172.16.1.2

Packet 2

00:00:00:621435: pg-input
  stream pcap2, 42 bytes, 2 sw_if_index
  current data 0, length 42, free-list 7, clone-count 0, trace 0x1
  ARP: 02:02:00:00:ff:02 -> ff:ff:ff:ff:ff:ff
  request, type ethernet/IP4, address size 6/4
  02:02:00:00:ff:02/172.16.2.2 -> 00:00:00:00:00:00/172.16.2.1
00:00:00:621576: ethernet-input
  ARP: 02:02:00:00:ff:02 -> ff:ff:ff:ff:ff:ff
00:00:00:621585: arp-input
  request, type ethernet/IP4, address size 6/4
  02:02:00:00:ff:02/172.16.2.2 -> 00:00:00:00:00:00/172.16.2.1
00:00:00:621839: pg1-output
  pg1
  ARP: 02:fe:f0:47:40:66 -> 02:02:00:00:ff:02
  reply, type ethernet/IP4, address size 6/4
  02:fe:f0:47:40:66/172.16.2.1 -> 02:02:00:00:ff:02/172.16.2.2
00:00:00:621846: pg1-tx
    buffer 0x878: current data 0, length 42, free-list 7, clone-count 0, trace 0x1
                  l2-hdr-offset 0 l3-hdr-offset 14 
  ARP: 02:fe:f0:47:40:66 -> 02:02:00:00:ff:02
  reply, type ethernet/IP4, address size 6/4
  02:fe:f0:47:40:66/172.16.2.1 -> 02:02:00:00:ff:02/172.16.2.2


10:19:22,617 Capture file /tmp/vpp-unittest-BFDAPITestCase-iilC3D/pg1_out.pcap already exists
10:19:22,617 Waiting for packet
10:19:22,618 Packet received after 0.000457s
10:19:22,618 VPP pg1 MAC address is 02:fe:f0:47:40:66 
==============================================================================
Bidirectional Forwarding Detection (BFD) - API
==============================================================================
Starting activate SHA1 authentication ...
------------------------------------------------------------------------------
10:19:22,618 --- setUp() for BFDAPITestCase.test_activate_auth( activate SHA1 authentication ) called ---
10:19:22,618 Starting sleep for 0.1s (during setUp)
10:19:22,718 Finished sleep (during setUp) - slept 0.100120067596s (wanted 0.1s)
10:19:22,718 CLI: clear trace
10:19:22,729 API: bfd_auth_set_key ({'auth_type': 4, 'key_len': 12, 'conf_key_id': 3569024720, 'key': 'I\n\x1c\x88h@\xceF\xb9\xd1V\xc4'})
10:19:22,729 REG: registering bfd-auth-key-3569024720
10:19:22,729 API: bfd_udp_add ({'detect_mult': 3, 'peer_addr': '\xac\x10\x01\x02', 'desired_min_tx': 300000, 'sw_if_index': 1, 'local_addr': '\xac\x10\x01\x01', 'required_min_rx': 300000, 'is_ipv6': 0})
10:19:22,739 REG: registering bfd-udp-1-172.16.1.1-172.16.1.2-2
10:19:22,739 API: bfd_udp_auth_activate ({'peer_addr': '\xac\x10\x01\x02', 'conf_key_id': 3569024720, 'is_delayed': 0, 'sw_if_index': 1, 'local_addr': '\xac\x10\x01\x01', 'bfd_key_id': 247, 'is_ipv6': 0})
10:19:22,739 --- tearDown() for BFDAPITestCase.test_activate_auth( activate SHA1 authentication ) called ---
10:19:22,740 CLI: show trace
10:19:22,740 ------------------- Start of thread 0 vpp_main -------------------
No packets in trace buffer

10:19:22,740 CLI: show interface
10:19:22,750 show interface
              Name               Idx       State          Counter          Count     
local0                            0        down      
pg0                               1         up       rx packets                     1
                                                     rx bytes                      42
                                                     tx packets                     2
                                                     tx bytes                     108
pg1                               2         up       rx packets                     1
                                                     rx bytes                      42
                                                     tx packets                     1
                                                     tx bytes                      42

10:19:22,750 CLI: show hardware
10:19:22,750 show hardware
              Name                Idx   Link  Hardware
local0                             0    down  local0
  local
pg0                                1     up   pg0
  Ethernet address 02:fe:dd:ae:63:1a
pg1                                2     up   pg1
  Ethernet address 02:fe:f0:47:40:66

10:19:22,750 CLI: show error
10:19:22,761 show error
   Count                    Node                  Reason
         2                arp-input               ARP replies sent

10:19:22,761 CLI: show run
10:19:22,762 show run
Time .8, average vectors/node 1.00, last 128 main loops 0.00 per node 0.00
  vector rates in 2.5307e0, out 3.7960e0, drop 0.0000e0, punt 0.0000e0
             Name                 State         Calls          Vectors        Suspends         Clocks       Vectors/Call  
acl-plugin-fa-cleaner-process  event wait                0               0               1          2.97e4            0.00
api-rx-from-ring                 active                  0               0              58          3.30e5            0.00
arp-input                        active                  2               2               0          8.66e5            1.00
bfd-process                     any wait                 0               0               2          9.79e5            0.00
cdp-process                     any wait                 0               0               1          2.68e5            0.00
dhcp-client-process             any wait                 0               0               1          1.65e4            0.00
dns-resolver-process            any wait                 0               0               1          9.64e3            0.00
ethernet-input                   active                  2               2               0          3.91e4            1.00
fib-walk                        any wait                 0               0               1          3.13e4            0.00
flow-report-process             any wait                 0               0               1          9.92e3            0.00
flowprobe-timer-process         any wait                 0               0               1          1.38e4            0.00
ikev2-manager-process           any wait                 0               0               1          1.04e4            0.00
interface-output                 active                  2               2               0          1.60e4            1.00
ioam-export-process             any wait                 0               0               1          1.57e4            0.00
ip-route-resolver-process       any wait                 0               0               1          6.05e3            0.00
ip4-rewrite                      active                  1               1               0          2.00e4            1.00
ip6-icmp-neighbor-discovery-ev  any wait                 0               0               1          1.22e4            0.00
l2fib-mac-age-scanner-process  event wait                0               0               1          3.73e3            0.00
lisp-retry-service              any wait                 0               0               1          1.11e4            0.00
lldp-process                   event wait                0               0               1          1.79e5            0.00
memif-process                  event wait                0               0               1          2.61e4            0.00
nat-det-expire-walk               done                   1               0               0          9.19e3            0.00
nat64-expire-walk               any wait                 0               0               1          5.15e7            0.00
pg-input                        disabled                 4               2               0          9.96e5             .50
pg0-output                       active                  2               2               0          3.23e4            1.00
pg0-tx                           active                  2               2               0          9.61e4            1.00
pg1-output                       active                  1               1               0          2.71e4            1.00
pg1-tx                           active                  1               1               0          2.10e5            1.00
startup-config-process          time wait                0               0               1          3.77e3            0.00
udp-ping-process                any wait                 0               0               1          1.59e4            0.00
unix-epoll-input                 polling                90               0               0          2.94e7            0.00
vhost-user-process              any wait                 0               0               1          1.49e4            0.00
vhost-user-send-interrupt-proc  any wait                 0               0               1          2.82e3            0.00
vpe-link-state-process         event wait                0               0               3          1.39e4            0.00
vpe-oam-process                 any wait                 0               0               1          2.97e4            0.00
vxlan-gpe-ioam-export-process   any wait                 0               0               1          1.63e4            0.00
wildcard-ip4-arp-publisher-pro event wait                0               0               1          8.78e3            0.00

10:19:22,762 REG: Removing VPP configuration for registered objects
10:19:22,762 API: bfd_udp_session_dump ({})
10:19:22,772 session entry: bfd_udp_session_details(_0=272, context=29, sw_if_index=1, local_addr='\xac\x10\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', peer_addr='\xac\x10\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', is_ipv6=0, state=1, is_authenticated=1, bfd_key_id=247, conf_key_id=3569024720, required_min_rx=300000, desired_min_tx=300000, detect_mult=3)
10:19:22,772 REG: Removing configuration for bfd-udp-1-172.16.1.1-172.16.1.2-2
10:19:22,772 API: bfd_udp_del ({'peer_addr': '\xac\x10\x01\x02', 'is_ipv6': 0, 'sw_if_index': 1, 'local_addr': '\xac\x10\x01\x01'})
10:19:22,782 API: bfd_auth_keys_dump ({})
Fatal Python error: Segmentation fault

Thread 0x00007fffe7877700 <python> (most recent call first):
  File "/usr/lib64/python2.7/threading.py", line 339 in wait
  File "/usr/lib64/python2.7/Queue.py", line 168 in get
  File "build/bdist.linux-x86_64/egg/vpp_papi.py", line 850 in thread_msg_handler
  File "/usr/lib64/python2.7/threading.py", line 765 in run
  File "/usr/lib64/python2.7/threading.py", line 812 in __bootstrap_inner
  File "/usr/lib64/python2.7/threading.py", line 785 in __bootstrap

Thread 0x00007fffe8078700 <python> (most recent call first):
  File "/home/sources/vpp/test/framework.py", line 78 in pump_output
  File "/usr/lib64/python2.7/threading.py", line 765 in run
  File "/usr/lib64/python2.7/threading.py", line 812 in __bootstrap_inner
  File "/usr/lib64/python2.7/threading.py", line 785 in __bootstrap

Current thread 0x00007ffff7fc5740 <python> (most recent call first):
  File "build/bdist.linux-x86_64/egg/vpp_papi.py", line 629 in _read
  File "build/bdist.linux-x86_64/egg/vpp_papi.py", line 783 in _call_vpp
  File "build/bdist.linux-x86_64/egg/vpp_papi.py", line 571 in <lambda>
  File "build/bdist.linux-x86_64/egg/vpp_papi.py", line 99 in __call__
  File "/home/sources/vpp/test/vpp_papi_provider.py", line 153 in api
  File "/home/sources/vpp/test/vpp_papi_provider.py", line 1963 in bfd_auth_keys_dump
  File "/home/sources/vpp/test/bfd.py", line 217 in get_bfd_auth_keys_dump_entry
  File "/home/sources/vpp/test/bfd.py", line 224 in query_vpp_config
  File "/home/sources/vpp/test/vpp_object.py", line 70 in remove_vpp_config
  File "/home/sources/vpp/test/framework.py", line 465 in tearDown
  File "/usr/lib64/python2.7/unittest/case.py", line 398 in run
  File "/usr/lib64/python2.7/unittest/case.py", line 433 in __call__
  File "/usr/lib64/python2.7/unittest/suite.py", line 108 in run
  File "/usr/lib64/python2.7/unittest/suite.py", line 70 in __call__
  File "/usr/lib64/python2.7/unittest/runner.py", line 151 in run
  File "/home/sources/vpp/test/framework.py", line 1108 in run
  File "run_tests.py", line 21 in test_runner_wrapper
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 114 in run
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 258 in _bootstrap
  File "/usr/lib64/python2.7/multiprocessing/forking.py", line 126 in __init__
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 130 in start
  File "run_tests.py", line 57 in run_forked
  File "run_tests.py", line 159 in <module>
setsid_wrapper.sh: got signal, killing child pid 7452
Killing possible remaining process IDs:  7457 7461 7462 7590 7592
scripts/run_in_venv_with_cleanup.sh: line 10:  7457 Killed                  $*
No symlinks to failed tests' temporary directories found in /tmp/vpp-failed-unittests/.
make[1]: *** [test] Error 1
make: *** [test-all-debug] Interrupt
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