Hi experts, I am seeing the below pasted call stack. We are using vpp 21.06. The crash is in tcp_update_time_now() called inside tcp46_input_inline. I had not done any changes to *tcp46_input_inline *graph node. All I did was add this patch mentioned below. This patch was applied recently in the function* tcp46_listen_inline()* to increment error counters.
https://gerrit.fd.io/r/c/vpp/+/35654/ NOTE ======= The VPP was working fine for a long time even after applying the above patch but recently we added more features and the crash may be happening as a side-effect of the new code we added. Pls let me know if you have seen this crash or if you may have some suggestions for this crash??? Call stack ============= #0 0x00007f59ccfc888c in __pthread_kill_implementation () from /lib64/libc.so.6 #1 0x00007f59ccf7b6a6 in raise () from /lib64/libc.so.6 #2 0x00007f59ccf65865 in abort () from /lib64/libc.so.6 #3 0x000055bf7f28d30a in os_exit (code=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vpp/vnet/main.c:477 #4 <signal handler called> #5 0x00007f59cdf7bb23 in tcp_update_time_now (wrk=0xa640) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vnet/tcp/tcp_inlines.h:226 #6 tcp46_input_inline (is_nolookup=0 '\000', is_ip4=0, frame=<optimized out>, node=<optimized out>, vm=0x7f58ab281e00) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vnet/tcp/tcp_input.c:2876 #7 tcp6_input_node_fn_skx (vm=0x7f58ab281e00, node=0x7f584e33c440, from_frame=0x7f58ab49e900) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vnet/tcp/tcp_input.c:3051 #8 0x00007f59cd30bc05 in dispatch_node (last_time_stamp=<optimized out>, frame=<optimized out>, dispatch_state=VLIB_NODE_STATE_POLLING, type=VLIB_NODE_TYPE_INTERNAL, node=0x7f584e33c440, vm=0x7f58ab281e00) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vlib/main.c:1063 #9 dispatch_pending_node (vm=vm@entry=0x7f58ab281e00, pending_frame_index=pending_frame_index@entry=6, last_time_stamp=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vlib/main.c:1243 #10 0x00007f59cd30d9b7 in vlib_main_or_worker_loop (is_main=0, vm=0x7f58ab281e00) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vlib/main.c:1832 #11 vlib_worker_loop (vm=0x7f58ab281e00) at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vlib/main.c:1966 #12 0x00007f59cd28261c in clib_calljmp () at /usr/src/debug/vpp-21.06.0-5~gfad0b64b3_dirty.x86_64/src/vppinfra/longjmp.S:123 #13 0x00007f54837fdc80 in ?? () #14 0x00007f584847b1e9 in eal_thread_loop.cold () from /usr/lib/vpp_plugins/dpdk_plugin.so #15 0x0000000000000000 in ?? () Regards, Vijay Kumar N
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