Hi , Ben
Do you know how to let gdb to show the dpdk file number ?
In frame 5 , i can only see the address and assembly code that the vpp-dbg
package was already installed.
how to show the src code file and line number
#0 0x00007f2e0a1ac387 in raise () from /lib64/libc.so.6
#1 0x00007f2e0a1ada78 in abort () from /lib64/libc.so.6
be#3 0x00007f2e0c297ac7 in unix_signal_handler (signurm=7, si=<optimized out>,
uc=<optimized out>) at /usr/src/debug/vpp-1.0.0/src/vlib/unix/main.c:187
#4 <signal handler called>
#5 0x00007f2d05cb06fb in i40e_xmit_pkts () from
/usr/lib/vpp_plugins/dpdk_plugin.so
#6 0x00007f2d0619f69a in rte_eth_tx_prepare (nb_pkts=<optimized out>,
tx_pkts=<optimized out>, queue_id=<optimized out>, port_id=<optimized out>)
at /usr/src/debug/vpp-1.0.0/src/plugins/dpdk/device/device.c:170
#7 tx_burst_vector_internal (n_left=<optimized out>, mb=<optimized out>,
xd=0x7f2d00000000, vm=<optimized out>)
at /usr/src/debug/vpp-1.0.0/src/plugins/dpdk/device/device.c:179
#8 dpdk_device_class_tx_fn_skx ()
at /usr/src/debug/vpp-1.0.0/src/plugins/dpdk/device/device.c:453
#9 0x00007f2e0c243a15 in dispatch_pending_node (vm=<optimized out>,
pending_frame_index=<optimized out>, last_time_stamp=<optimized out>)
at /usr/src/debug/vpp-1.0.0/src/vlib/main.c:1024
#10 0x00007f2e0c2454ff in vlib_worker_loop (vm=vm@entry=0x7f2d0edc1fc0)
Thanks
Guangming
zhangguangm...@baicells.com
From: Benoit Ganne (bganne) via lists.fd.io
Date: 2022-11-28 21:18
To: vpp-dev@lists.fd.io
Subject: Re: [vpp-dev] VPP - 'No debugging symbols found in /usr/lib/vpp
plugins/dpdk plugin.so'
Did you installed vpp from packages? If so, you'll need the vpp-dbg package.
Best
ben
> -----Original Message-----
> From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Venkataraju,
> Raghu via lists.fd.io
> Sent: Monday, November 28, 2022 14:03
> To: vpp-dev@lists.fd.io
> Subject: [vpp-dev] VPP - 'No debugging symbols found in /usr/lib/vpp
> plugins/dpdk plugin.so'
>
> Hi,
>
>
> In FDIO vpp 21.01, while testing TCP traffic observing a seg fault
> resulting in vpp abort. Generated the core dump and ran gdb on it.
> bt was pointing to 'dpdk_plugin' in vpp
>
> $ gdb vpp <core_dump>
>
> warning: Unable to find matching inferior's thread library, thread
> debugging will not be available.
> Core was generated by `vpp -c /etc/vpp/startup.conf'.
> Program terminated with signal SIGABRT, Aborted.#0 0x0000007faf663280 in
> raise () from /lib/libc.so.6
> [Current thread is 1 (LWP 383)]
>
>
> (gdb) bt
> #0 0x0000007faf663280 in raise () from /lib/libc.so.6
> #1 0x0000007faf652dcc in abort () from /lib/libc.so.6
> #2 0x0000005573b84124 in os_exit ()
> #3 0x0000007faf8b7ed0 in ?? () from /usr/lib/libvlib.so.21.01.1
> #4 <signal handler called>
> #5 0x0000007faf663280 in raise () from /lib/libc.so.6
> #6 0x0000007faf652dcc in abort () from /lib/libc.so.6
> #7 0x0000007fa97df8b4 in __rte_panic () from
> /usr/lib/vpp_plugins/dpdk_plugin.so
> #8 0x0000007fa9960b58 in ?? () from /usr/lib/vpp_plugins/dpdk_plugin.so
> #9 0x0000007fa99599b8 in ?? () from /usr/lib/vpp_plugins/dpdk_plugin.so
> #10 0x0000007fa99463f4 in ?? () from /usr/lib/vpp_plugins/dpdk_plugin.so
> #11 0x0000007faf7e4224 in ?? () from /lib/libpthread.so.0
> #12 0x0000007faf6e5d1c in ?? () from /lib/libc.so.6
>
> (gdb) file /usr/lib/vpp_plugins/dpdk_plugin.so
> warning: core file may not match specified executable file.
> Reading symbols from /usr/lib/vpp_plugins/dpdk_plugin.so...(No debugging
> symbols found in /usr/lib/vpp_plugins/dpdk_plugin.so)
> warning: File "/lib/libthread_db-1.0.so" auto-loading has been declined by
> your `auto-load safe-path' set to "$debugdir:$datadir/auto-load".
> warning: Unable to find libthread_db matching inferior's thread library,
> thread debugging will not be available.
>
>
> From bt, function name not displayed for dpdk_plugin because of 'No
> debugging symbols found in /usr/lib/vpp_plugins/dpdk_plugin.so'
> We had built the dpdk_plugin in debug mode with -g option. But still we
> are getting above warning.
>
> In FDIO vpp 21.01 version, can dpdk_plugin be built with debug symbols ?
> Any flag or additional code changes needed ?
>
>
>
> Can you please help on this regard.
>
> Regards,
> Raghu
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