Thanks Neale. Looks like next node index 28 is invalid.
Regards On Wed, 27 Jul 2022, 10:18 Neale Ranns, <ne...@graphiant.com> wrote: > > > > > *From: *vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> on behalf of Vijay > Kumar via lists.fd.io <vjkumar2003=gmail....@lists.fd.io> > *Date: *Wednesday, 27 July 2022 at 11:27 > *To: *vpp-dev <vpp-dev@lists.fd.io> > *Subject: *[vpp-dev] Crash in vlib_buffer_enqueue_next > > Hi experts, > > > > I am seeing this callstack where the enque next crashes due to sig abort. > Pls let me know possible reasons for this call stack. I highly appreciate > any response related to this bt. > > > > > > Program terminated with signal SIGABRT, Aborted. > > #0 __pthread_kill_implementation (threadid=<optimized out>, > signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44 > > Downloading source file > /usr/src/debug/glibc-2.34-25.fc35.x86_64/nptl/pthread_kill.c... > > 44 return INTERNAL_SYSCALL_ERROR_P (ret) ? > INTERNAL_SYSCALL_ERRNO (ret) : 0; > > [Current thread is 1 (Thread 0x7ff3a7fff640 (LWP 113))] > > (gdb) bt > > #0 __pthread_kill_implementation (threadid=<optimized out>, > signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44 > > #1 0x00007ff79fe828f3 in __pthread_kill_internal (signo=6, > threadid=<optimized out>) at pthread_kill.c:78 > > #2 0x00007ff79fe356a6 in __GI_raise (sig=sig@entry=6) at > ../sysdeps/posix/raise.c:26 > > #3 0x00007ff79fe1f865 in __GI_abort () at abort.c:100 > > #4 0x0000557244c3d30a in os_exit (code=<optimized out>) at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vpp/vnet/main.c:477 > > #5 <signal handler called> > > #6 vlib_next_frame_change_ownership (node_runtime=0x7ff53dd56500, > node_runtime=0x7ff53dd56500, next_index=28, vm=0x7ff5269d83c0) > > at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/main.c:344 > > #7 vlib_get_next_frame_internal (vm=vm@entry=0x7ff5269d83c0, > node=node@entry=0x7ff53dd56500, next_index=next_index@entry=28, > allocate_new_next_frame=allocate_new_next_frame@entry=0) > > at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/main.c:418 > > #8 0x00007ff7a02816d0 in enqueue_one (tmp=0x7ff3ac254ec0, n_left=2, > n_buffers=2, nexts=0x7ff3ac2553c0, buffers=0x7ff53e10f9d0, next_index=28, > used_elt_bmp=0x7ff3ac254e80, node=0x7ff53dd56500, > > vm=0x7ff5269d83c0) at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/buffer_funcs.c:74 > > #9 vlib_buffer_enqueue_to_next_fn_skx (vm=0x7ff5269d83c0, node=<optimized > out>, buffers=<optimized out>, nexts=<optimized out>, count=<optimized out>) > > at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/buffer_funcs.c:165 > > #10 0x00007ff51e7975c7 in ?? () from > /usr/lib/vpp_plugins/an_ppe_vppctrl_plugin.so > > > > You’re doing something wrong in here. An invalid next node would be my > guess. > > > > /neale > > > > > > #11 0x00007ff7a01c62c2 in dispatch_node (last_time_stamp=<optimized out>, > frame=<optimized out>, dispatch_state=VLIB_NODE_STATE_POLLING, > type=VLIB_NODE_TYPE_INTERNAL, node=0x7ff53dd56500, > > vm=0x7ff5269d83c0) at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/main.c:1074 > > #12 dispatch_pending_node (vm=vm@entry=0x7ff5269d83c0, > pending_frame_index=pending_frame_index@entry=4, > last_time_stamp=<optimized out>) > > at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/main.c:1252 > > #13 0x00007ff7a01c79c7 in vlib_main_or_worker_loop (is_main=0, > vm=0x7ff5269d83c0) at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/main.c:1841 > > #14 vlib_worker_loop (vm=0x7ff5269d83c0) at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vlib/main.c:1975 > > #15 0x00007ff7a013c68c in clib_calljmp () at > /usr/src/debug/vpp-21.06.0-5~g18265fb04_dirty.x86_64/src/vppinfra/longjmp.S:123 > > #16 0x00007ff3a7ffec80 in ?? () > > #17 0x00007ff51b2af1f2 in eal_thread_loop.cold () from > /usr/lib/vpp_plugins/dpdk_plugin.so > > #18 0x0000000000000000 in ?? () > > (gdb) fr 10 > > #10 0x00007ff51e7975c7 in ?? () from > /usr/lib/vpp_plugins/an_ppe_vppctrl_plugin.so > > (gdb) info args > > > > > >
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