If possible, repeat the exercise with a debug image. The code involved is well
tested, and does not crash without “help.” I wouldn’t be surprised to run into
an ASSERT elsewhere which explains the problem.
For the specific packet in question: see if
vnet_buffer(b)->sw_if_index[VLIB_TX] is set to a nonexistent FIB index. That’s
one possible reason why the root mtrie ply might not play nicely with the other
children.
HTH... Dave
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of abbas ali chezgi
via Lists.Fd.Io
Sent: Tuesday, August 28, 2018 5:16 AM
To: Vpp-dev <vpp-dev@lists.fd.io>
Cc: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] crash in vpp 18.07
more info after full core dump:
#0 0x00007f57b1b6e428 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f57b1b7002a in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00005565b7348dee in os_exit (code=code@entry=1)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vpp/vnet/main.c:355
#3 0x00007f57b3210035 in unix_signal_handler (signum=<optimized out>,
si=<optimized out>,
uc=<optimized out>) at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/unix/main.c:157
#4 <signal handler called>
#5 0x00007f57b29b7321 in ip4_fib_mtrie_lookup_step_one
(dst_address=0x7f576af32a1a, m=<optimized out>)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vnet/ip/ip4_mtrie.h:229
#6 ip4_local_check_src (error0=<synthetic pointer>, last_check=<synthetic
pointer>,
ip0=0x7f576af32a0e, b=0x7f576af32900)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vnet/ip/ip4_forward.c:1280
#7 ip4_local_inline (head_of_feature_arc=1, frame=<optimized out>,
node=<optimized out>,
vm=0x7f57b342cf80 <vlib_global_main>)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vnet/ip/ip4_forward.c:1514
#8 ip4_local (frame=<optimized out>, node=<optimized out>, vm=0x7f57b342cf80
<vlib_global_main>)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vnet/ip/ip4_forward.c:1534
#9 ip4_local_avx2 (vm=0x7f57b342cf80 <vlib_global_main>, node=0x7f577155c3c0,
frame=0x7f57721c4400)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vnet/ip/ip4_forward.c:1555
#10 0x00007f57b31d63a4 in dispatch_node (last_time_stamp=85226775203136,
frame=0x7f57721c4400,
dispatch_state=VLIB_NODE_STATE_POLLING, type=VLIB_NODE_TYPE_INTERNAL,
node=0x7f577155c3c0,
vm=0x7f57b342cf80 <vlib_global_main>)
at /w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/main.c:988
#11 dispatch_pending_node (vm=vm@entry=0x7f57b342cf80 <vlib_global_main>,
pending_frame_index=pending_frame_index@entry=5,
last_time_stamp=last_time_stamp@entry=85226775203136)
at /w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/main.c:1138
#12 0x00007f57b31d7dee in vlib_main_or_worker_loop (is_main=1,
vm=0x7f57b342cf80 <vlib_global_main>)
at /w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/main.c:1616
#13 vlib_main_loop (vm=0x7f57b342cf80 <vlib_global_main>)
at /w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/main.c:1635
#14 vlib_main (vm=vm@entry=0x7f57b342cf80 <vlib_global_main>,
input=input@entry=0x7f57717e4fa0)
at /w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/main.c:1826
#15 0x00007f57b320f4d3 in thread0 (arg=140014646382464)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/unix/main.c:607
#16 0x00007f57b234e778 in clib_calljmp ()
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vppinfra/longjmp.S:110
#17 0x00007ffce83886c0 in ?? ()
#18 0x00007f57b3210576 in vlib_unix_main (argc=<optimized out>, argv=<optimized
out>)
at
/w/workspace/vpp-merge-1807-ubuntu1604/build-data/../src/vlib/unix/main.c:674
#19 0x3670637400000038 in ?? ()
#20 0x502074657365722d in ?? ()
#21 0x64207374656b6361 in ?? ()
#22 0x6620646570706f72 in ?? ()
#23 0x206b63616c20726f in ?? ()
#24 0x696620787220666f in ?? ()
#25 0x6563617073206f66 in ?? ()
#26 0x000000006425203a in ?? ()
#27 0x0000000000000000 in ?? ()
On Tuesday, August 28, 2018, 1:30:26 PM GMT+4:30, abbas ali chezgi via
Lists.Fd.Io <chezgi=yahoo....@lists.fd.io<mailto:chezgi=yahoo....@lists.fd.io>>
wrote:
this crash accoured in vpp 18.07:
vpp[71]: received signal SIGSEGV, PC 0x7f125c775321, faulting address
0x7f16ae006978
vpp[71]: #0 0x00007f125cfcdf7f 0x7f125cfcdf7f
vpp[71]: #1 0x00007f125bed6390 0x7f125bed6390
vpp[71]: #2 0x00007f125c775321 ip4_local_avx2 + 0x905
vpp[71]: #3 0x00007f125cf943a4 0x7f125cf943a4
vpp[71]: #4 0x00007f125cf95dee vlib_main + 0x71e
vpp[71]: #5 0x00007f125cfcd4d3 0x7f125cfcd4d3
vpp[71]: #6 0x00007f125c10c778 0x7f125c10c778
running options:
unix {
log /outDir/vpp.log
cli-listen /run/vpp/cli.sock
}
api-segment {
prefix vpp1
}
plugins {
plugin default { enable }
plugin dpdk_plugin.so { disable }
}
thanks.
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