Raj, yeah so looking further at it - the abf plugin does not handle the error code correctly for the case when the ACL does not exist, and rather than erroring out, just keeps going. Hence the assert later on when it tries to perform the lookup in the context that has not been properly setup..
--a On 3/18/19, Raj <rajlistu...@gmail.com> wrote: > Hello all, > > I am testing ABF functionality and was able to crash VPP. > > I was using v19.04-rc0~458-g53ba544d7. Configured VPP using following > commands: > > set int state GigabitEthernet86/0/3 up > set int ip address GigabitEthernet86/0/3 xxx.xx.223.14/29 > set int ip address GigabitEthernet86/0/3 2001:470:xxxx:xxx::600/64 > > ip route add 0.0.0.0/0 via xxx.xx.223.9 GigabitEthernet86/0/3 > ip route add ::/0 via 2001:470:xxxx:xxx::1 GigabitEthernet86/0/3 > > set int state GigabitEthernet86/0/2 up > set int ip address GigabitEthernet86/0/2 100.69.1.1/24 > set int ip address GigabitEthernet86/0/2 2001:470:yyyy:yyy::1/56 > > set int ip addr GigabitEthernet86/0/0 192.168.20.1/29 > set int state GigabitEthernet86/0/0 up > > abf policy add id 0 acl 0 via 192.168.20.2 GigabitEthernet86/0/0 > abf attach ip4 policy 0 priority 1 GigabitEthernet86/0/2 > > Running VPP under gdb, the back trace is: > > 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. > (gdb) > (gdb) > (gdb) bt > #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 > #1 0x00007ffff5912801 in __GI_abort () at abort.c:79 > #2 0x000055555555c4c8 in os_panic () at > /home/raj/vpp/src/vpp/vnet/main.c:335 > #3 0x00007ffff5d0125f in debugger () at > /home/raj/vpp/src/vppinfra/error.c:84 > #4 0x00007ffff5d0169a in _clib_error (how_to_die=2, > function_name=0x0, line_number=0, fmt=0x7fffb4860d40 "%s:%d (%s) > assertion `%s' fails") at /home/raj/vpp/src/vppinfra/error.c:143 > #5 0x00007fffb485a720 in hash_multi_acl_match_5tuple > (p_acl_main=0x7fffb48513e0 <acl_main>, lc_index=0, > pkt_5tuple=0x7fffb6bffac0, is_ip6=0, action=0x7fffb6bffa47 "", > acl_pos_p=0x7fffb6bffa50, acl_match_p=0x7fffb6bffa4c, > rule_match_p=0x7fffb6bffa54, trace_bitmap=0x7fffb6bffa58) at > /home/raj/vpp/src/plugins/acl/public_inlines.h:636 > #6 0x00007fffb485a95f in acl_plugin_match_5tuple_inline > (p_acl_main=0x7fffb48513e0 <acl_main>, lc_index=0, > pkt_5tuple=0x7fffb6bffac0, is_ip6=0, r_action=0x7fffb6bffa47 "", > r_acl_pos_p=0x7fffb6bffa50, r_acl_match_p=0x7fffb6bffa4c, > r_rule_match_p=0x7fffb6bffa54, trace_bitmap=0x7fffb6bffa58) at > /home/raj/vpp/src/plugins/acl/public_inlines.h:675 > #7 0x00007fffb485d214 in abf_input_inline (vm=0x7ffff6512600 > <vlib_global_main>, node=0x7fffb5f36980, frame=0x7fffb6dfc400, > fproto=FIB_PROTOCOL_IP4) > at /home/raj/vpp/src/plugins/abf/abf_itf_attach.c:569 > #8 0x00007fffb485d478 in abf_input_ip4 (vm=0x7ffff6512600 > <vlib_global_main>, node=0x7fffb5f36980, frame=0x7fffb6dfc400) at > /home/raj/vpp/src/plugins/abf/abf_itf_attach.c:625 > #9 0x00007ffff6280614 in dispatch_node (vm=0x7ffff6512600 > <vlib_global_main>, node=0x7fffb5f36980, type=VLIB_NODE_TYPE_INTERNAL, > dispatch_state=VLIB_NODE_STATE_POLLING, > frame=0x7fffb6dfc400, last_time_stamp=1082092493908744) at > /home/raj/vpp/src/vlib/main.c:1209 > #10 0x00007ffff6280dd5 in dispatch_pending_node (vm=0x7ffff6512600 > <vlib_global_main>, pending_frame_index=2, > last_time_stamp=1082092493908744) at > /home/raj/vpp/src/vlib/main.c:1376 > #11 0x00007ffff6282b01 in vlib_main_or_worker_loop (vm=0x7ffff6512600 > <vlib_global_main>, is_main=1) at /home/raj/vpp/src/vlib/main.c:1820 > #12 0x00007ffff628337c in vlib_main_loop (vm=0x7ffff6512600 > <vlib_global_main>) at /home/raj/vpp/src/vlib/main.c:1922 > #13 0x00007ffff6284109 in vlib_main (vm=0x7ffff6512600 > <vlib_global_main>, input=0x7fffb6bfffb0) at > /home/raj/vpp/src/vlib/main.c:2111 > #14 0x00007ffff62e13c0 in thread0 (arg=140737325901312) at > /home/raj/vpp/src/vlib/unix/main.c:612 > #15 0x00007ffff5d24544 in clib_calljmp () from > /home/raj/vpp/build-root/install-vpp_debug-native/vpp/lib/libvppinfra.so.19.04 > #16 0x00007fffffffd170 in ?? () > #17 0x00007ffff62e188d in vlib_unix_main (argc=43, > argv=0x55555586f500) at /home/raj/vpp/src/vlib/unix/main.c:681 > #18 0x000055555555bf0c in main (argc=43, argv=0x55555586f500) at > /home/raj/vpp/src/vpp/vnet/main.c:274 > > Thanks and Regards, > > Raj >
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