Hi experts, We encounterd crash when configured nat with gre interface
version : vpp master vpp configuration: G0 ip 192.168.102.151 create gre tunnel src 192.168.102.151 dst 192.168.100.174 set interface stat gre0 up set interface ip addr gre0 8.8.8.1/30 *set interface nat44 out gre0 output-feature* linux configuration: ip: 192.168.100.174 ip tunnel add mode gre remote 192.168.102.151 local 192.168.100.174 ifconfig gre0 8.8.8.2/30 up after configuration, ping 8.8.8.1 then crash DBGvpp# 2: /root/work/vpp-master/src/vnet/config.h:130 (vnet_get_config_data) assertion `(i) < vec_len (cm->config_string_heap)' fails Program received signal SIGABRT, Aborted. [Switching to Thread 0x7fff3bfff700 (LWP 45893)] 0x00007ffff5478387 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:55 55 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig); Missing separate debuginfos, use: debuginfo-install krb5-libs-1.15.1-37.el7_7.2.x86_64 libcom_err-1.42.9-16.el7.x86_64 mbedtls-2.7.16-2.el7.x86_64 pkcs11-helper-1.11-3.el7.x86_64 it's bt info (gdb) bt #0 0x00007ffff5478387 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:55 #1 0x00007ffff5479a78 in __GI_abort () at abort.c:90 #2 0x000000000040858e in os_panic () at /root/work/vpp-master/src/vpp/vnet/main.c:371 #3 0x00007ffff6219aa6 in debugger () at /root/work/vpp-master/src/vppinfra/error.c:84 #4 0x00007ffff6219e91 in _clib_error (how_to_die=2, function_name=0x0, line_number=0, fmt=0x7fffaff78e80 "%s:%d (%s) assertion `%s' fails") at /root/work/vpp-master/src/vppinfra/error.c:143 #5 0x00007fffafdffd32 in vnet_get_config_data (cm=0x7fffb44f03e0, config_index=0x1002492e94, next_index=0x1002492ed8, n_data_bytes=0) at /root/work/vpp-master/src/vnet/config.h:130 #6 0x00007fffafe00007 in vnet_feature_next_with_data (next0=0x1002492ed8, b0=0x1002492e80, n_data_bytes=0) at /root/work/vpp-master/src/vnet/feature/feature.h:316 #7 0x00007fffafe00031 in vnet_feature_next (next0=0x1002492ed8, b0=0x1002492e80) at /root/work/vpp-master/src/vnet/feature/feature.h:324 #8 0x00007fffafe076eb in nat44_ed_in2out_fast_path_node_fn_inline (vm=0x7fffb4b667c0, node=0x7fffb530c540, frame=0x7fffb531c7c0, is_output_feature=1) at /root/work/vpp-master/src/plugins/nat/in2out_ed.c:967 #9 0x00007fffafe095af in nat44_ed_in2out_output_node_fn_hsw (vm=0x7fffb4b667c0, node=0x7fffb530c540, frame=0x7fffb531c7c0) at /root/work/vpp-master/src/plugins/nat/in2out_ed.c:1515 #10 0x00007ffff7edfc3f in dispatch_node (vm=0x7fffb4b667c0, node=0x7fffb530c540, type=VLIB_NODE_TYPE_INTERNAL, dispatch_state=VLIB_NODE_STATE_POLLING, frame=0x7fffb531c7c0, last_time_stamp=1085510887320845) at /root/work/vpp-master/src/vlib/main.c:1194 #11 0x00007ffff7ee0349 in dispatch_pending_node (vm=0x7fffb4b667c0, pending_frame_index=0, last_time_stamp=1085510887320845) at /root/work/vpp-master/src/vlib/main.c:1353 #12 0x00007ffff7ee2395 in vlib_main_or_worker_loop (vm=0x7fffb4b667c0, is_main=0) at /root/work/vpp-master/src/vlib/main.c:1848 #13 0x00007ffff7ee2e17 in vlib_worker_loop (vm=0x7fffb4b667c0) at /root/work/vpp-master/src/vlib/main.c:1982 #14 0x00007ffff7f23b55 in vlib_worker_thread_fn (arg=0x7fffb6a77e80) at /root/work/vpp-master/src/vlib/threads.c:1814 #15 0x00007ffff6238870 in clib_calljmp () at /root/work/vpp-master/src/vppinfra/longjmp.S:123 #16 0x00007fff3bffebb0 in ?? () #17 0x00007ffff7f1da47 in vlib_worker_thread_bootstrap_fn (arg=0x7fffb6a77e80) at /root/work/vpp-master/src/vlib/threads.c:585 Backtrace stopped: previous frame inner to this frame (corrupt stack?)
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