Hi Dave,
Sorry about the late reply.
I used below configs to eliminate most of the complexity. I did not see
binary-api being truncated.
Steps:
1. I used basic vpp.conf (see below) without the dns_name_server commands
2. gdb run -c /etc/vpp/startup.conf (see below)
3. sudo vppctl
4. Entered dns_name_server commands manually
5. ping google.com
6. vpp crash
Outputs collected: gbd run, gdb backtrace, syslog
*Step 4: DNS cache output*
vpp# nat44 add identity mapping external TenGigabitEthernet8/0/0 udp 53053
vpp# bin dns_name_server_add_del 8.8.8.8
vpp# bin dns_enable_disable
vpp# sh dns cache verbose
DNS cache contains 15 entries
bserver-1.kbfs.keybaseapi.com -> bserver-1.kbfs.keybaseapi.com:
34.235.251.175 [59] 52.54.47.119 [59] TTL left 593.7
mdserver-0.kbfs.keybaseapi.com -> mdserver-0.kbfs.keybaseapi.com:
34.225.12.137 [45] 34.197.228.196 [45] TTL left 593.7
vortex.data.microsoft.com -> vortex.data.microsoft.com: 64.4.54.254
[263] TTL left 593.9
api.keybase.io -> api.keybase.io: 35.153.89.209 [34] 52.4.215.1 [34]
TTL left 594.0
push.apple.com -> push.apple.com: TTL left 594.4
api.dropboxapi.com -> api.dropboxapi.com: 162.125.7.7 [59] TTL left
595.0
people-pa.clients6.google.com -> people-pa.clients6.google.com:
172.217.6.42 [240] TTL left 595.0
bolt.dropbox.com -> bolt.dropbox.com: 162.125.34.129 [59] TTL left
595.1
www.google.com -> www.google.com: 172.217.0.36 [263] TTL left 595.1
play.google.com -> play.google.com: 172.217.5.110 [27] TTL left 595.4
mail.google.com -> mail.google.com: 172.217.6.37 [299] TTL left 595.5
gateway-carry.icloud.com -> gateway-carry.icloud.com: 17.248.128.151
[59] 17.248.128.168 [59] 17.248.128.169 [59] 17.248.128.171 [59]
17.248.128.178 [59] 17.248.128.232 [59] 17.248.128.172 [59] 17.248.128.142
[59] TTL left 595.5
push.services.mozilla.com -> push.services.mozilla.com: 35.164.35.9
[56] TTL left 599.5
0.client-channel.google.com -> 0.client-channel.google.com:
74.125.28.189 [239] TTL left 599.6
airtable.com -> airtable.com: 3.221.153.172 [35] 34.193.210.213 [35]
52.22.150.146 [35] TTL left 599.6
*Step 2: gdb run*
(gdb) run -c /etc/vpp/startup.conf
Starting program: /usr/bin/vpp -c /etc/vpp/startup.conf
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
vlib_plugin_early_init:361: plugin path
/usr/lib/x86_64-linux-gnu/vpp_plugins:/usr/lib/vpp_plugins
load_one_plugin:189: Loaded plugin: abf_plugin.so (Access Control List
(ACL) Based Forwarding)
load_one_plugin:189: Loaded plugin: acl_plugin.so (Access Control Lists
(ACL))
load_one_plugin:189: Loaded plugin: avf_plugin.so (Intel Adaptive Virtual
Function (AVF) Device Driver)
load_one_plugin:189: Loaded plugin: cdp_plugin.so (Cisco Discovery Protocol
(CDP))
load_one_plugin:189: Loaded plugin: crypto_ia32_plugin.so (Intel IA32
Software Crypto Engine)
load_one_plugin:189: Loaded plugin: crypto_ipsecmb_plugin.so (Intel IPSEC
Multi-buffer Crypto Engine)
load_one_plugin:189: Loaded plugin: crypto_openssl_plugin.so (OpenSSL
Crypto Engine)
load_one_plugin:189: Loaded plugin: ct6_plugin.so (IPv6 Connection Tracker)
load_one_plugin:189: Loaded plugin: dpdk_plugin.so (Data Plane Development
Kit (DPDK))
load_one_plugin:189: Loaded plugin: flowprobe_plugin.so (Flow per Packet)
load_one_plugin:189: Loaded plugin: gbp_plugin.so (Group Based Policy (GBP))
load_one_plugin:189: Loaded plugin: gtpu_plugin.so (GPRS Tunnelling
Protocol, User Data (GTPv1-U))
load_one_plugin:189: Loaded plugin: hs_apps_plugin.so (Host Stack
Applications)
load_one_plugin:189: Loaded plugin: http_static_plugin.so (HTTP Static
Server)
load_one_plugin:189: Loaded plugin: igmp_plugin.so (Internet Group
Management Protocol (IGMP))
load_one_plugin:189: Loaded plugin: ikev2_plugin.so (Internet Key Exchange
(IKEv2) Protocol)
load_one_plugin:189: Loaded plugin: ila_plugin.so (Identifier Locator
Addressing (ILA) for IPv6)
load_one_plugin:189: Loaded plugin: ioam_plugin.so (Inbound Operations,
Administration, and Maintenance (OAM))
load_one_plugin:117: Plugin disabled (default): ixge_plugin.so
load_one_plugin:189: Loaded plugin: l2e_plugin.so (Layer 2 (L2) Emulation)
load_one_plugin:189: Loaded plugin: l3xc_plugin.so (L3 Cross-Connect (L3XC))
load_one_plugin:189: Loaded plugin: lacp_plugin.so (Link Aggregation
Control Protocol (LACP))
load_one_plugin:189: Loaded plugin: lb_plugin.so (Load Balancer (LB))
load_one_plugin:189: Loaded plugin: mactime_plugin.so (Time-based MAC
Source Address Filter)
load_one_plugin:189: Loaded plugin: map_plugin.so (Mapping of Address and
Port (MAP))
load_one_plugin:189: Loaded plugin: memif_plugin.so (Packet Memory
Interface (memif) -- Experimental)
load_one_plugin:189: Loaded plugin: nat_plugin.so (Network Address
Translation (NAT))
load_one_plugin:189: Loaded plugin: nsh_plugin.so (Network Service Header
(NSH))
load_one_plugin:189: Loaded plugin: nsim_plugin.so (Network Delay Simulator)
load_one_plugin:189: Loaded plugin: perfmon_plugin.so (Performance Monitor)
load_one_plugin:189: Loaded plugin: pppoe_plugin.so (PPP over Ethernet
(PPPoE))
load_one_plugin:189: Loaded plugin: quic_plugin.so (Quic transport protocol)
load_one_plugin:189: Loaded plugin: rdma_plugin.so (RDMA IBverbs Device
Driver)
load_one_plugin:117: Plugin disabled (default): sctp_plugin.so
load_one_plugin:189: Loaded plugin: srv6ad_plugin.so (Dynamic Segment
Routing for IPv6 (SRv6) Proxy)
load_one_plugin:189: Loaded plugin: srv6am_plugin.so (Masquerading Segment
Routing for IPv6 (SRv6) Proxy)
load_one_plugin:189: Loaded plugin: srv6as_plugin.so (Static Segment
Routing for IPv6 (SRv6) Proxy)
load_one_plugin:189: Loaded plugin: stn_plugin.so (VPP Steals the NIC (STN)
for Container Integration)
load_one_plugin:189: Loaded plugin: svs_plugin.so (Source Virtual Routing
and Fowarding (VRF) Select)
load_one_plugin:189: Loaded plugin: tlsmbedtls_plugin.so (Transport Layer
Security (TLS) Engine, Mbedtls Based)
load_one_plugin:189: Loaded plugin: tlsopenssl_plugin.so (Transport Layer
Security (TLS) Engine, OpenSSL Based)
load_one_plugin:117: Plugin disabled (default): unittest_plugin.so
load_one_plugin:189: Loaded plugin: vmxnet3_plugin.so (VMWare Vmxnet3
Device Driver)
/usr/bin/vpp[9185]: clib_elf_parse_file: open `linux-vdso.so.1': No such
file or directory
/usr/bin/vpp[9185]: vnet_feature_init:143: WARNING: arp arc: last node is
error-drop, but expected arp-disabled!
/usr/bin/vpp[9185]: perfmon: No table for cpuid 506f1
/usr/bin/vpp[9185]: perfmon: model 5f, stepping 1
/usr/bin/vpp[9185]: dpdk: Unsupported PCI device 0x8086:0x19e2 found at PCI
address 0000:01:00.0
/usr/bin/vpp[9185]: vlib_pci_bind_to_uio: Skipping PCI device 0000:05:00.0
as host interface enp5s0 is up
/usr/bin/vpp[9185]: dpdk: EAL init args: -c c -n 4 --in-memory
--file-prefix vpp -b 0000:05:00.0 --master-lcore 2
[New Thread 0x7fff90cff700 (LWP 9203)]
[New Thread 0x7fff8bfff700 (LWP 9204)]
loop0
tap0
vlib_worker_thread_barrier_sync_int: worker thread deadlock
Thread 1 "vpp_main" received signal SIGABRT, Aborted.
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
-----------------------
*Step 6: gdb backtrace*
(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007ffff61ca801 in __GI_abort () at abort.c:79
#2 0x000055555555bdf3 in os_panic ()
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vpp/vnet/main.c:355
#3 0x00007ffff6ab621b in vlib_worker_thread_barrier_sync_int (
vm=vm@entry=0x7ffff6ce6a00 <vlib_global_main>,
func_name=func_name@entry=0x7ffff6ad2ab0 <__FUNCTION__.43806>
"vlib_cli_dispatch_sub_commands")
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/threads.c:1476
#4 0x00007ffff6a6c937 in vlib_cli_dispatch_sub_commands (
vm=vm@entry=0x7ffff6ce6a00 <vlib_global_main>, cm=cm@entry=0x7ffff6ce6c08
<vlib_global_main+520>,
input=input@entry=0x7fffb6a36f60, parent_command_index=<optimized out>)
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/cli.c:643
#5 0x00007ffff6a6c718 in vlib_cli_dispatch_sub_commands (
vm=vm@entry=0x7ffff6ce6a00 <vlib_global_main>, cm=cm@entry=0x7ffff6ce6c08
<vlib_global_main+520>,
input=input@entry=0x7fffb6a36f60, parent_command_index=<optimized out>)
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/cli.c:606
#6 0x00007ffff6a6c718 in vlib_cli_dispatch_sub_commands (
vm=vm@entry=0x7ffff6ce6a00 <vlib_global_main>, cm=cm@entry=0x7ffff6ce6c08
<vlib_global_main+520>,
input=input@entry=0x7fffb6a36f60,
parent_command_index=parent_command_index@entry=0)
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/cli.c:606
#7 0x00007ffff6a6cab8 in vlib_cli_input ()
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/cli.c:746
#8 0x00007ffff6ac5be2 in unix_cli_process_input (cm=0x7ffff6ce74c0
<unix_cli_main>, cli_file_index=0)
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/unix/cli.c:2525
---Type <return> to continue, or q <return> to quit---
#9 unix_cli_process () at
/w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/unix/cli.c:2641
#10 0x00007ffff6a881a6 in vlib_process_bootstrap (_a=<optimized out>)
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/main.c:1468
#11 0x00007ffff65a3834 in clib_calljmp () from
/usr/lib/x86_64-linux-gnu/libvppinfra.so.19.08
#12 0x00007fffb5836b50 in ?? ()
#13 0x00007ffff6a8bf59 in vlib_process_startup (f=0x0, p=0x7fffb6a26000,
vm=0x7ffff6ce6a00 <vlib_global_main>)
at /w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vppinfra/types.h:133
#14 dispatch_process (vm=0x7ffff6ce6a00 <vlib_global_main>,
p=0x7fffb6a26000, last_time_stamp=0,
f=0x0) at
/w/workspace/vpp-beta-merge-1908-ubuntu1804/src/vlib/main.c:1535
#15 0x0000000000000000 in ?? ()
*/var/log/syslog*
Aug 21 17:39:37 test1 vpp: buffer: vlib_physmem_shared_map_create:
pmalloc_map_pages: Unable to fulfill huge page allocation request: No such
file or directory
Aug 21 17:39:37 test1 vpp: buffer: falling back to non-hugepage backed
buffer pool
Aug 21 17:39:37 test1 vpp: perfmon: No table for cpuid 506f1
Aug 21 17:39:37 test1 vpp: perfmon: model 5f, stepping 1
*Info and configs used*
++++++++++++++++++++++
Ubuntu 18.04.3 LTS (GNU/Linux 4.15.0-45-generic x86_64)
-----------------------
vpp# sh version verbose
Version: v19.08-release
Compiled by: root
Compile host: 365637461ad3
Compile date: Wed Aug 21 18:20:49 UTC 2019
Compile location: /w/workspace/vpp-beta-merge-1908-ubuntu1804
Compiler: GCC 8.3.0
Current PID: 9617
------------------------
*startup.conf*
unix {
nodaemon
log /var/log/vpp/vpp.log
full-coredump
cli-listen /run/vpp/cli.sock
gid vpp
startup-config /home/test1/vpp.conf
}
api-trace {
on
}
api-segment {
gid vpp
}
socksvr {
default
}
statseg {
default
}
cpu {
main-core 2
corelist-workers 3
}
nat {
translation hash buckets 16000
max translations per user 500
endpoint-dependent
}
-------------------------
*vpp.conf*
set int state TenGigabitEthernet8/0/0 up
set int state GigabitEthernet2/0/0 up
set int state GigabitEthernet3/0/0 up
set int ip address TenGigabitEthernet8/0/0 72.77.156.155/29
ip route add 0.0.0.0/0 via 72.77.156.158
loopback create
set int l2 bridge loop0 1 bvi
set int ip address loop0 10.155.6.1/24
set int state loop0 up
set int l2 bridge GigabitEthernet2/0/0 1
set int l2 bridge GigabitEthernet3/0/0 1
comment { dhcp server listens on this interface }
create tap id 0 host-ip4-addr 10.155.6.2/24 host-if-name novlan
set int l2 bridge tap0 1
set int state tap0 up
nat44 add interface address TenGigabitEthernet8/0/0
set interface nat44 in loop0 out TenGigabitEthernet8/0/0
-------------------------
*dnsmasq.conf*
# Gateway
dhcp-option=novlan,3,10.155.6.1
# DNS server
dhcp-option=novlan,6,10.155.6.1
--------------------------
Really appreciate your help!
On Sat, Aug 17, 2019 at 1:37 PM Dave Barach via Lists.Fd.Io <dbarach=
cisco....@lists.fd.io> wrote:
> I am trying to use DNS server and on "ping google.com" VPP is crashing
>
>
>
> Color me unsurprised. Please fix your configuration, to the point where
> first-order obvious errors have been eliminated. It looks to me like the
> “binary-api dns_name_server_add_del 8.8.8.8” command has been truncated:
>
>
>
>
>
> Aug 13 21:31:10 test1-vpp vnet[853]: unknown input `add_del 8.8.8.8
>
> Aug 13 21:31:28 test1-vpp vnet[853]: dns cache: add / del / clear
> required..
>
> Aug 13 21:31:36 test1-vpp vnet[853]:
>
> vl_api_dns_resolve_name_reply_t_handler:2556: ip4 address 23.75.7.244
>
> Aug 13 21:32:24 test1-vpp vnet[853]: dns cache: add / del / clear
> required..
>
> Aug 13 21:34:43 test1-vpp vnet[853]: resolve_event:247: name server
> 8.8.8.8 backfire
>
>
>
> Here is the config that I use on my home gateway.
>
>
>
> uncomment { nat44 add identity mapping external GigabitEthernet3/0/0 udp
> 53053 }
>
> uncomment { bin dns_name_server_add_del 8.8.8.8 }
>
> uncomment { bin dns_enable_disable }
>
>
>
> $ ping google.com # on my desktop, behind the vpp gateway
>
> PING google.com (172.217.7.174) 56(84) bytes of data.
>
> 64 bytes from 172.217.7.174 (172.217.7.174): icmp_seq=1 ttl=54 time=26.3 ms
>
> 64 bytes from 172.217.7.174 (172.217.7.174): icmp_seq=2 ttl=54 time=21.5 ms
>
>
>
> vpp# sh dns cache
>
> weatherlink.com -> weatherlink.com: 54.172.164.1 [21338] TTL left
> 489.9
>
> xxl.trane.com -> xxl.trane.com: 168.65.229.203 [781] EXPIRED
>
> google.com -> google.com: 172.217.7.174 [189] TTL left 552.1
>
> www.google.com -> www.google.com: 172.217.164.164 [189] TTL left
> 569.6
>
> dns.msftncsi.com -> dns.msftncsi.com: 131.107.255.255 [15] TTL left
> 569.9
>
> kv801-prod.do.dsp.mp.microsoft.com ->
> kv801-prod.do.dsp.mp.microsoft.com: 23.67.120.218 [19] TTL left 571.7
>
> geo-prod.do.dsp.mp.microsoft.com -> geo-prod.do.dsp.mp.microsoft.com:
> 40.69.221.239 [121] TTL left 571.1
>
> outlook.office365.com -> outlook.office365.com: 52.96.62.226 [38]
> TTL left 571.5
>
> 174.7.217.172.in-addr.arpa -> 174.7.217.172.in-addr.arpa: TTL left
> 573.6
>
> client.wns.windows.com -> client.wns.windows.com: 52.242.211.89
> [299] TTL left 574.1
>
> www.nr-extensions.tk -> www.nr-extensions.tk: 165.22.1.78 [190] TTL
> left 589.7
>
> ip-api.com -> ip-api.com: 147.135.15.186 [99] TTL left 589.9
>
> www.instagram.com -> www.instagram.com: 31.13.65.174 [59] TTL left
> 590.2
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