Hi,
On one of the deployment setup, we are facing vpp crash in snap node during
start-up after we add workers . If we do not configure any worker thread
then system comes up fine.
Has anybody face this crash?
Back-trace is as below -
1701 third-party/vpp/vpp_1801/build-data/../src/vppinfra/mhash.c:119
#7 0x00002b94dfdd95ce in key_sum (key=18446744073709551615,
h=0x2b94e14bb164)
at third-party/vpp/vpp_1801/build-data/../src/vppinfra/hash.c:286
#8 lookup (v=0x2b94e14bb1a8, key=18446744073709551615, op=op@entry=GET,
new_value=new_value@entry=0x0, old_value=old_value@entry=0x0)
at third-party/vpp/vpp_1801/build-data/../src/vppinfra/hash.c:497
#9 0x00002b94dfdda1bf in _hash_get_pair (v=<optimized out>, key=<optimized
out>)
at third-party/vpp/vpp_1801/build-data/../src/vppinfra/hash.c:594
#10 0x00002b94dfde6f70 in mhash_get_pair (h=h@entry=0x2b94df522e10
<snap_main+16>, key=key@entry=0x2b94e2a60e90)
at third-party/vpp/vpp_1801/build-data/../src/vppinfra/mhash.c:259
#11 0x00002b94dedfb895 in mhash_get (key=0x2b94e2a60e90, h=<optimized out>)
at third-party/vpp/vpp_1801/build-data/../src/vppinfra/mhash.h:112
#12 snap_get_protocol_info (h=<optimized out>, sm=<optimized out>)
at third-party/vpp/vpp_1801/build-data/../src/vnet/snap/snap.h:164
#13 snap_input (vm=<optimized out>, node=0x2b94e2af1858,
from_frame=0x2b94e2aaf700)
at third-party/vpp/vpp_1801/build-data/../src/vnet/snap/node.c:231
#14 0x00002b94dea733f4 in dispatch_node (last_time_stamp=2023362426976018,
frame=0x2b94e2aaf700, dispatch_state=VLIB_NODE_STATE_POLLING,
type=VLIB_NODE_TYPE_INTERNAL,
node=0x2b94e2af1858, vm=0x2b94e2b047f8) at
third-party/vpp/vpp_1801/build-data/../src/vlib/main.c:988
#15 dispatch_pending_node (vm=vm@entry=0x2b94e2b047f8,
pending_frame_index=pending_frame_index@entry=3,
last_time_stamp=2023362426976018)
at third-party/vpp/vpp_1801/build-data/../src/vlib/main.c:1138
#16 0x00002b94dea7418f in vlib_main_or_worker_loop (is_main=0,
vm=0x2b94e2b047f8)
at third-party/vpp/vpp_1801/build-data/../src/vlib/main.c:1609
#17 vlib_worker_loop (vm=0x2b94e2b047f8) at
third-party/vpp/vpp_1801/build-data/../src/vlib/main.c:1634
#18 0x00002b94dfddd838 in clib_calljmp () at
third-party/vpp/vpp_1801/build-data/../src/vppinfra/longjmp.S:110
#19 0x00002b9788819d80 in ?? ()
#20 0x00002b962177aa9d in eal_thread_loop (arg=<optimized out>)
at
third-party/vpp/vpp_1801/build-root/build-vpp-native/dpdk/dpdk-17.11/lib/librte_eal/linuxapp/eal/eal_thread.c:182
Thanks, Chetan
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