Configure SR-MPLS policy on a fresh started VPP without any config.  VPP will crash.

 

 

vpp# show ver verbose

Version:                  v18.07.1-release

Compiled by:              root

Compile host:             17f8408d5da1

Compile date:             Sun Sep 16 02:36:53 UTC 2018

Compile location:         /w/workspace/vpp-merge-1807-centos7

Compiler:                 GCC 4.8.5 20150623 (Red Hat 4.8.5-28)

Current PID:              128

 

(gdb) bt

#0  0x00007fe8cf0001f7 in raise () from /lib64/libc.so.6

#1  0x00007fe8cf0018e8 in abort () from /lib64/libc.so.6

#2  0x000055e0ffdd514e in os_exit (code=code@entry=1) at /usr/src/debug/vpp-18.07.1/src/vpp/vnet/main.c:355

#3  0x00007fe8d11f099f in unix_signal_handler (signum=<optimized out>, si=<optimized out>, uc=<optimized out>)

    at /usr/src/debug/vpp-18.07.1/src/vlib/unix/main.c:157

#4  <signal handler called>

#5  mpls_fib_get (index=<error reading variable: Cannot access memory at address 0x38>)

    at /usr/src/debug/vpp-18.07.1/src/vnet/fib/mpls_fib.h:64

#6  fib_table_lookup_exact_match_i (fib_table=0x0, prefix=0x7fe890b21b00)

    at /usr/src/debug/vpp-18.07.1/src/vnet/fib/fib_table.c:87

#7  fib_table_entry_path_add2 (fib_index=fib_index@entry=0, prefix=prefix@entry=0x7fe890b21b00,

    source=source@entry=FIB_SOURCE_SR, flags=<optimized out>, rpath=rpath@entry=0x7fe891f97280)

    at /usr/src/debug/vpp-18.07.1/src/vnet/fib/fib_table.c:567

#8  0x00007fe8d0bf31c8 in create_sl (weight=<optimized out>, sl=0x7fe890f7e64c, sr_policy=0x7fe891b8b328)

    at /usr/src/debug/vpp-18.07.1/src/vnet/srmpls/sr_mpls_policy.c:121

#9  sr_mpls_policy_add (bsid=<optimized out>, segments=segments@entry=0x7fe890f7e64c, behavior=behavior@entry=0 '\000',

    weight=<optimized out>) at /usr/src/debug/vpp-18.07.1/src/vnet/srmpls/sr_mpls_policy.c:182

#10 0x00007fe8d0bf51dc in sr_mpls_policy_command_fn (vm=<optimized out>, input=0x7fe890b21ed0, cmd=<optimized out>)

    at /usr/src/debug/vpp-18.07.1/src/vnet/srmpls/sr_mpls_policy.c:502

#11 0x00007fe8d11a3b01 in vlib_cli_dispatch_sub_commands (vm=vm@entry=0x7fe8d140cf80 <vlib_global_main>,

    cm=cm@entry=0x7fe8d140d160 <vlib_global_main+480>, input=input@entry=0x7fe890b21ed0,

    parent_command_index=<optimized out>) at /usr/src/debug/vpp-18.07.1/src/vlib/cli.c:589

#12 0x00007fe8d11a3eb7 in vlib_cli_dispatch_sub_commands (vm=vm@entry=0x7fe8d140cf80 <vlib_global_main>,

    cm=cm@entry=0x7fe8d140d160 <vlib_global_main+480>, input=input@entry=0x7fe890b21ed0,

    parent_command_index=<optimized out>) at /usr/src/debug/vpp-18.07.1/src/vlib/cli.c:567

--Type <return> to continue, or q <return> to quit--

#13 0x00007fe8d11a3eb7 in vlib_cli_dispatch_sub_commands (vm=vm@entry=0x7fe8d140cf80 <vlib_global_main>,

    cm=cm@entry=0x7fe8d140d160 <vlib_global_main+480>, input=input@entry=0x7fe890b21ed0,

    parent_command_index=parent_command_index@entry=0) at /usr/src/debug/vpp-18.07.1/src/vlib/cli.c:567

#14 0x00007fe8d11a40f0 in vlib_cli_input (vm=0x7fe8d140cf80 <vlib_global_main>, input=input@entry=0x7fe890b21ed0,

    function=function@entry=0x7fe8d11e9ba0 <unix_vlib_cli_output>, function_arg=function_arg@entry=0)

    at /usr/src/debug/vpp-18.07.1/src/vlib/cli.c:663

#15 0x00007fe8d11eaddc in unix_cli_process_input (cli_file_index=0, cm=0x7fe8d140cd60 <unix_cli_main>)

    at /usr/src/debug/vpp-18.07.1/src/vlib/unix/cli.c:2419

#16 0x00007fe8d11ee500 in unix_cli_process (vm=0x7fe8d140cf80 <vlib_global_main>, rt=0x7fe890b11000, f=<optimized out>)

    at /usr/src/debug/vpp-18.07.1/src/vlib/unix/cli.c:2535

#17 0x00007fe8d11b6836 in vlib_process_bootstrap (_a=<optimized out>) at /usr/src/debug/vpp-18.07.1/src/vlib/main.c:1231

#18 0x00007fe8cfce2148 in clib_calljmp () at /usr/src/debug/vpp-18.07.1/src/vppinfra/longjmp.S:110

#19 0x00007fe88f3b5c00 in ?? ()

#20 0x00007fe8d11b7b29 in vlib_process_startup (f=0x0, p=0x7fe890b11000, vm=0x7fe8d140cf80 <vlib_global_main>)

    at /usr/src/debug/vpp-18.07.1/src/vlib/main.c:1253

#21 dispatch_process (vm=0x7fe8d140cf80 <vlib_global_main>, p=0x7fe890b11000, last_time_stamp=0, f=0x0)

    at /usr/src/debug/vpp-18.07.1/src/vlib/main.c:1298