Dear VPP Folks,
I found vpp assertion failed when nat44 forward is enabled. I'm using vpp
version on master branch.
I configured a simple nat scenario with nat44.
My startup.conf :
unix {
interactive
nodaemon
cli-listen /run/vpp/cli.sock
cli-no-pager
poll-sleep-usec 100
}
api-trace {
on
}
api-segment {
gid vpp
}
socksvr {
default
}
cpu {
main-core 1
corelist-workers 2,3
}
dpdk {
uio-driver vfio-pci
vdev crypto_aesni_mb0,max_nb_queue_pairs=2,socket_id=0
dev 0000:02:05.0 { name G0}
}
plugins {
plugin ikev2_plugin.so { disable }
}
nat {
endpoint-dependent
}
My config is shown below:
set int state G0 up
set dhcp client intfc G0
set interface nat44 out G0 output-feature
nat44 add interface address G0
*nat44 forwarding enable*
assertion error is below:
DBGvpp# 1: /root/work/vpp-master/src/plugins/nat/out2in_ed.c:451
(create_bypass_for_fwd) assertion `thread_index == ed_value_get_thread_index
(&value)' fails
Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7fff3bfff700 (LWP 51834)]
0x00007ffff546c387 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:55
55 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
Missing separate debuginfos, use: debuginfo-install
krb5-libs-1.15.1-37.el7_7.2.x86_64 libcom_err-1.42.9-16.el7.x86_64
mbedtls-2.7.16-2.el7.x86_64 pkcs11-helper-1.11-3.el7.x86_64
(gdb) bt
#0 0x00007ffff546c387 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:55
#1 0x00007ffff546da78 in __GI_abort () at abort.c:90
#2 0x000000000040858e in os_panic () at
/root/work/vpp-master/src/vpp/vnet/main.c:371
#3 0x00007ffff620daa6 in debugger () at
/root/work/vpp-master/src/vppinfra/error.c:84
#4 0x00007ffff620de91 in _clib_error (how_to_die=2, function_name=0x0,
line_number=0,
fmt=0x7fffaff07040 "%s:%d (%s) assertion `%s' fails") at
/root/work/vpp-master/src/vppinfra/error.c:143
#5 0x00007fffafdb058d in create_bypass_for_fwd (sm=0x7fffaff68ec0 <snat_main>,
b=0x10026d68c0,
ip=0x10026d69ce, rx_fib_index=0, thread_index=1) at
/root/work/vpp-master/src/plugins/nat/out2in_ed.c:451
#6 0x00007fffafdb0a54 in create_bypass_for_fwd_worker (sm=0x7fffaff68ec0
<snat_main>, b=0x10026d68c0,
ip=0x10026d69ce, rx_fib_index=0) at
/root/work/vpp-master/src/plugins/nat/out2in_ed.c:521
#7 0x00007fffafdb2ca2 in nat44_ed_out2in_slow_path_node_fn_inline
(vm=0x7fffb7312cc0, node=0x7fffb76618c0,
frame=0x7fffb75a07c0) at /root/work/vpp-master/src/plugins/nat/out2in_ed.c:1205
#8 0x00007fffafdb36c1 in nat44_ed_out2in_slowpath_node_fn_hsw
(vm=0x7fffb7312cc0, node=0x7fffb76618c0,
frame=0x7fffb75a07c0) at /root/work/vpp-master/src/plugins/nat/out2in_ed.c:1407
#9 0x00007ffff7edec68 in dispatch_node (vm=0x7fffb7312cc0,
node=0x7fffb76618c0, type=VLIB_NODE_TYPE_INTERNAL,
dispatch_state=VLIB_NODE_STATE_POLLING, frame=0x7fffb75a07c0,
last_time_stamp=2247957037122854)
at /root/work/vpp-master/src/vlib/main.c:1194
#10 0x00007ffff7edf372 in dispatch_pending_node (vm=0x7fffb7312cc0,
pending_frame_index=1,
last_time_stamp=2247957037122854) at /root/work/vpp-master/src/vlib/main.c:1353
#11 0x00007ffff7ee13be in vlib_main_or_worker_loop (vm=0x7fffb7312cc0,
is_main=0)
at /root/work/vpp-master/src/vlib/main.c:1848
#12 0x00007ffff7ee1e40 in vlib_worker_loop (vm=0x7fffb7312cc0) at
/root/work/vpp-master/src/vlib/main.c:1982
#13 0x00007ffff7f22e62 in vlib_worker_thread_fn (arg=0x7fffb4124e00)
at /root/work/vpp-master/src/vlib/threads.c:1861
#14 0x00007ffff622c870 in clib_calljmp () at
/root/work/vpp-master/src/vppinfra/longjmp.S:123
#15 0x00007fff3bffebb0 in ?? ()
#16 0x00007ffff7f1ca52 in vlib_worker_thread_bootstrap_fn (arg=0x7fffb4124e00)
at /root/work/vpp-master/src/vlib/threads.c:585
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)
without " nat44 forwarding enable ", no above assertion failed.
or
without "corelist-workers 2,3" in startup.conf, no above assertion failed
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