Both primary and secondary processes are built and running off 16.07 On Thursday, November 3, 2016, XIAO Xiaohong < Xiaohong.Xiao at alcatel-sbell.com.cn> wrote:
> Hello > You said your primary process calls a shared library, then what's the DPDK > version this shared library is built on? > Can you make sure the primary and secondary process both are using same > DPDK version? > > -----Original Message----- > From: users [mailto:users-bounces at dpdk.org <javascript:;>] On Behalf Of > Sruthi Yellamraju > Sent: 2016?11?4? 6:49 > To: users at dpdk.org <javascript:;> > Subject: [dpdk-users] DPDK-16.07: segfault when calling > rte_eth_stats_get() from secondary process > > Hi, > > I am using DPDK 16.07 with fm10k. I am seeing segfaults when calling > rte_eth_stats_get() API from a secondary process. > > The primary process doesnt call DPDK APIs directly and hence doesnt link > against DPDK Libraries. The primary process uses a shared library that in > turn is using DPDK APIs and links with DPDK libraries. All DPDK libraries > are built as static libraries. > > The secondary process uses DPDK APIs directly and hence links against the > DPDK static libraries directly. > > When i run the secondary process to get stats (something like > dpdk-procinfo) application, it segfaults (Error 14). gdb shows: > (gdb) bt > #0 0x00007fffeacd72bc in ?? () --> points to stats API offset in the > primary processes' shared library > #1 0x00000000006761d7 in fm10k_update_hw_stats () > #2 0x0000000000650dee in fm10k_stats_get () > #3 0x000000000043803d in rte_eth_stats_get () > #4 0x0000000000a68663 in do_get_stats (argc=<value optimized out>, > argv=0x7fffffffe478) at dpdk_status.c:225 > #5 main (argc=<value optimized out>, argv=0x7fffffffe478) at > dpdk_status.c:501 > > Any clues on why this could be happening? I am guessing this needs some > linker magic to get it to work. Not sure what exactly. I played with a > couple of options , but in vain. > > Any pointers will be greatly appreciated. > > Thanks! >
