Build a debug vpp image and use gdb to debug the crash.
Hemant From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Vijay Kumar Sent: Thursday, August 04, 2022 12:17 AM To: vpp-dev <vpp-dev@lists.fd.io> Subject: [vpp-dev] Crash in rte_ipv6_phdr_cksum during tx Hi experts, Has anyone seen this below crash back-trace happening during the TX? Cras was seen in this function rte_ipv6_phdr_cksum The QA was trying to run a call model with about 200 UEs trying to connect to VPP and the crash was seen. This doesn't always happen. Any pointers on this is highly appreciated. Crash call stack ======================= 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 0x7f9d748a9640 (LWP 104))] (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 0x00007fa1684678f3 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78 #2 0x00007fa16841a6a6 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26 #3 0x00007fa168404865 in __GI_abort () at abort.c:100 #4 0x00005596b776b30a in os_exit (code=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/vpp/vnet/main.c:477 #5 <signal handler called> #6 rte_ipv6_phdr_cksum (ol_flags=<optimized out>, ipv6_hdr=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/build-root/install-vpp-native/external/include/rte_net.h:179 #7 rte_net_intel_cksum_flags_prepare (m=<optimized out>, ol_flags=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/build-root/install-vpp-native/external/include/rte_net.h:182 #8 0x00007f9ee433ed18 in dpdk_buffer_tx_offload (mb=<optimized out>, b=0x10173887c0, xd=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/plugins/dpdk/device/device.c:262 #9 dpdk_device_class_tx_fn_skx (vm=<optimized out>, node=<optimized out>, f=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/plugins/dpdk/device/device.c:410 #10 0x00007fa1687aac15 in dispatch_node (last_time_stamp=<optimized out>, frame=<optimized out>, dispatch_state=VLIB_NODE_STATE_POLLING, type=VLIB_NODE_TYPE_INTERNAL, node=0x7f9f065576c0, vm=0x7f9eeefd9640) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/vlib/main.c:1072 #11 dispatch_pending_node (vm=vm@entry=0x7f9eeefd9640, pending_frame_index=pending_frame_index@entry=8, last_time_stamp=<optimized out>) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/vlib/main.c:1252 #12 0x00007fa1687ac9c7 in vlib_main_or_worker_loop (is_main=0, vm=0x7f9eeefd9640) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/vlib/main.c:1841 #13 vlib_worker_loop (vm=0x7f9eeefd9640) at /usr/src/debug/vpp-21.06.0-5~gc195b9111_dirty.x86_64/src/vlib/main.c:1975 Regards, Vijay
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