[dpdk-users] [testpmd][mlx5] chrashes wheb using: flow dump 0

["Jørgen Østergaard Sloth" <Jorgen.Sloth@xci.dk>]

Hi

DPDK 20.08 - Ubuntu 18.08.4 - OFED MLNX_OFED_LINUX-5.1-0.6.6.0-ubuntu18.04-x86_64 - ConnectX-5 CCAT
Testpmd crashes when using: flow dump 0

It might have something to do with whitelist option: dv_flow_en=0 because when dv_flow_en=1 => then it dumps flow info without crashing.
I'm using dv_flow_en=0 because RSS for ETH/VLAN/IP/UDP seems not to be working then. (when whitelist argument is dv_flow_en=1)


Console output:
root@server102:/home/xciuser/SW/20.08# gdb --args ./testpmd -c 0xff -n 4 -w 86:00.0,dv_flow_en=0 -- --port-numa-config=0,1,1,1 --socket-num=0 --burst=64 --txd=1024 --rxd=1024 --mbcache=512 --rxq=8 --txq=8 --nb-cores=2 --forward-mode=rxonly -i --rss-ip
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Reading symbols from ./testpmd...done.
(gdb) r
Starting program: /home/xciuser/SW/20.08/testpmd -c 0xff -n 4 -w 86:00.0,dv_flow_en=0 -- --port-numa-config=0,1,1,1 --socket-num=0 --burst=64 --txd=1024 --rxd=1024 --mbcache=512 --rxq=8 --txq=8 --nb-cores=2 --forward-mode=rxonly -i --rss-ip
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
EAL: Detected 72 lcore(s)
EAL: Detected 4 NUMA nodes
[New Thread 0x7ffff630c700 (LWP 12830)]
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
[New Thread 0x7ffff5b0b700 (LWP 12831)]
EAL: Selected IOVA mode 'PA'
EAL: No free hugepages reported in hugepages-2048kB
EAL: No free hugepages reported in hugepages-2048kB
EAL: No free hugepages reported in hugepages-2048kB
EAL: No free hugepages reported in hugepages-2048kB
EAL: No available hugepages reported in hugepages-2048kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
[New Thread 0x7ffff530a700 (LWP 12832)]
[New Thread 0x7ffff4b09700 (LWP 12833)]
[New Thread 0x7fffeffff700 (LWP 12834)]
[New Thread 0x7fffef7fe700 (LWP 12835)]
[New Thread 0x7fffeeffd700 (LWP 12836)]
[New Thread 0x7fffee7fc700 (LWP 12837)]
[New Thread 0x7fffedffb700 (LWP 12838)]
EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:86:00.0 (socket 2)
[New Thread 0x7fffed7fa700 (LWP 12841)]
EAL: No legacy callbacks, legacy socket not created
Set rxonly packet forwarding mode
Interactive-mode selected
testpmd: create a new mbuf pool <mbuf_pool_socket_0>: n=262144, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
testpmd: create a new mbuf pool <mbuf_pool_socket_2>: n=262144, size=2176, socket=2
testpmd: preferred mempool ops selected: ring_mp_mc

Warning! port-topology=paired and odd forward ports number, the last port will pair with itself.

Configuring Port 0 (socket 2)
Port 0: 0C:42:A1:46:5B:6A
Checking link statuses...
Done
testpmd> start
rxonly packet forwarding - ports=1 - cores=2 - streams=8 - NUMA support enabled, MP allocation mode: native
Logical Core 1 (socket 0) forwards packets on 4 streams:
  RX P=0/Q=0 (socket 2) -> TX P=0/Q=0 (socket 2) peer=02:00:00:00:00:00
  RX P=0/Q=1 (socket 2) -> TX P=0/Q=1 (socket 2) peer=02:00:00:00:00:00
  RX P=0/Q=2 (socket 2) -> TX P=0/Q=2 (socket 2) peer=02:00:00:00:00:00
  RX P=0/Q=3 (socket 2) -> TX P=0/Q=3 (socket 2) peer=02:00:00:00:00:00
Logical Core 2 (socket 0) forwards packets on 4 streams:
  RX P=0/Q=4 (socket 2) -> TX P=0/Q=4 (socket 2) peer=02:00:00:00:00:00
  RX P=0/Q=5 (socket 2) -> TX P=0/Q=5 (socket 2) peer=02:00:00:00:00:00
  RX P=0/Q=6 (socket 2) -> TX P=0/Q=6 (socket 2) peer=02:00:00:00:00:00
  RX P=0/Q=7 (socket 2) -> TX P=0/Q=7 (socket 2) peer=02:00:00:00:00:00

  rxonly packet forwarding packets/burst=64
  nb forwarding cores=2 - nb forwarding ports=1
  port 0: RX queue number: 8 Tx queue number: 8
    Rx offloads=0x0 Tx offloads=0x0
    RX queue: 0
      RX desc=1024 - RX free threshold=0
      RX threshold registers: pthresh=0 hthresh=0  wthresh=0
      RX Offloads=0x0
    TX queue: 0
      TX desc=1024 - TX free threshold=0
      TX threshold registers: pthresh=0 hthresh=0  wthresh=0
      TX offloads=0x0 - TX RS bit threshold=0
testpmd> flow dump
 0 [PORT ID]: port identifier
testpmd> flow dump
 0 [PORT ID]: port identifier
testpmd> flow dump 0

Thread 1 "testpmd" received signal SIGSEGV, Segmentation fault.
__strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:62
62      ../sysdeps/x86_64/multiarch/strlen-avx2.S: No such file or directory.
(gdb) bt
#0  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:62
#1  0x00007ffff6e6d4d3 in _IO_vfprintf_internal (s=0x7ffff71fc760 <_IO_2_1_stdout_>, format=0x5555564b4088 "%s(): Caught PMD error type %d (%s): %s%s: %s\n", ap=ap@entry=0x7fffffff7fb0) at vfprintf.c:1643
#2  0x00007ffff6f422ec in ___printf_chk (flag=1, format=<optimized out>) at printf_chk.c:35
#3  0x00005555558bec31 in port_flow_dump ()
#4  0x0000555555af1cf8 in cmdline_parse ()
#5  0x0000555555af0cf0 in cmdline_valid_buffer ()
#6  0x0000555555af44b1 in rdline_char_in ()
#7  0x0000555555af09f0 in cmdline_in.part.1.constprop ()
#8  0x0000555555af0fab in cmdline_interact ()
#9  0x00005555558abfe0 in prompt ()
#10 0x00005555556b05f2 in main ()
(gdb) q
A debugging session is active.

        Inferior 1 [process 12826] will be killed.

Quit anyway? (y or n) y
mailto:root@server102:/home/xciuser/SW/20.08#

Br Jorgen