[dpdk-users] [VMXNET3] vmxnet3_dev_stats_get() segfault when called by pktgen

longtb5 at viettel.com.vn longtb5 at viettel.com.vn
Thu Sep 7 02:51:46 CEST 2017


I'm running Ubuntu 16.04 on my VM with vmxnet3 as the NIC. I have successfully installed DPDK
and managed to run a few sample apps. However when I tried pktgen the kernel threw a SIGSEGV
without me doing anything yet.

$ sudo .app/x86_64-native-linuxapp-gcc/pktgen

====== Pktgen got a Segment Fault

Obtained 11 stack frames.
app/x86_64-native-linuxapp-gcc/pktgen() [0x468ba5]
/lib/x86_64-linux-gnu/libc.so.6(+0x354b0) [0x7f1e618de4b0]
app/x86_64-native-linuxapp-gcc/pktgen() [0x6c7c70]
app/x86_64-native-linuxapp-gcc/pktgen(rte_eth_stats_get+0x79) [0x4a3fe9]
app/x86_64-native-linuxapp-gcc/pktgen(pktgen_process_stats+0xa9) [0x46f0f9]
app/x86_64-native-linuxapp-gcc/pktgen(rte_timer_manage+0x526) [0x48ca96]
app/x86_64-native-linuxapp-gcc/pktgen(cli_start+0x26d) [0x71276d]
app/x86_64-native-linuxapp-gcc/pktgen(pktgen_cli_start+0xb) [0x4509bb]
app/x86_64-native-linuxapp-gcc/pktgen(main+0x7a6) [0x447b86]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f1e618c9830]
app/x86_64-native-linuxapp-gcc/pktgen(_start+0x29) [0x44a639]

# gdb .app/x86_64-native-linuxapp-gcc/pktgen

Thread 1 "pktgen" received signal SIGSEGV, Segmentation fault.
0x00000000006c7c70 in vmxnet3_dev_stats_get ()

I tried using older versions of DPDK and pktgen but nothing worked so far.

Is it a problem on my end? Like, the way I set up the NICs in my VM? Or is it a bug?



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