[ovs-discuss] Problem on creating bridge interface on OVS_DPDK in a VMware VM guest

Darrell Ball dball at vmware.com
Mon Oct 2 15:12:34 UTC 2017



On 9/28/17, 10:30 AM, "ovs-discuss-bounces at openvswitch.org on behalf of Darrell Ball" <ovs-discuss-bounces at openvswitch.org on behalf of dball at vmware.com> wrote:

    
    
    
    
    On 9/27/17, 8:01 PM, "BALL SUN" <paulrbk at gmail.com> wrote:
    
    
    
        I need some direction on " look into vmxnet3_recv_pkts with gdb"
    
    
    
    One link is below
    
    https://urldefense.proofpoint.com/v2/url?u=https-3A__www.cs.rochester.edu_-7Enelson_courses_csc-5F173_review_gdb.html&d=DwIGaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=SHYVOrhO5vo68iu2mJ-Ct7omQ-KHWOQrXKZBHWeqKUE&s=l-Sdbh-hsqR8vfX5fHIvgid3MkPvTT6Vfob0ESTFi9Q&e= 
    
    probably you can find other better links
    
    
    
        also, I am not abke to complie the vmxnet3-usermap, do you have any
    
        step on that?
    
    
    
    I have not used vmxnet3, so possibly others have some guidance about this?
    
    I asked about you using vmxnet3-usermap, which you mentioned earlier, because your stack
    
    trace was missing some info. and I wondered why.
    
    AFAIK, vmxnet3-usermap is deprecated in favor of vmxnet3, but others might know more about this?


Meaning - have you tried adding the corresponding vmxnet3 module into the kernel
eg)
darrell at prmh-nsx-perf-server135:~$ sudo modprobe vmxnet3
darrell at prmh-nsx-perf-server135:~$ lsmod |  grep vmxnet3
vmxnet3                61440  0 

and then binding the vmxnet3 vnic, which in your case would be something like:

…../tools/dpdk-devbind.py --bind=vmxnet3 0000:03:00.0


        On Thu, Sep 28, 2017 at 12:36 AM, Darrell Ball <dball at vmware.com> wrote:
    
        >
    
        >
    
        > On 9/26/17, 11:47 PM, "BALL SUN" <paulrbk at gmail.com> wrote:
    
        >
    
        >     tried on 17.05.2, seems got the same problem.
    
        >
    
        >
    
        > [Darrell]
    
        > Can you look into vmxnet3_recv_pkts with gdb to see where the issue?
    
        >
    
        > In addition, you mentioned in an earlier thread about
    
        > https://urldefense.proofpoint.com/v2/url?u=http-3A__dpdk.org_doc_vmxnet3-2Dusermap&d=DwIFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=mWUJAHqBJE53HZ9jsgJQ20r0YZAWMmFmzwD68avgNmo&s=tIl6tqL1YYkJOTJSzIJzXIQmHCsAUIhwhLI3WA9H3xo&e= 
    
        > I assume you are already using that driver now?
    
    
    
    
    
    
    
    
    
    
    
        >
    
        >
    
        >
    
        >     # gdb /usr/local/sbin/ovs-vswitchd coredump
    
        >     GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-94.el7
    
        >     Copyright (C) 2013 Free Software Foundation, Inc.
    
        >     License GPLv3+: GNU GPL version 3 or later <https://urldefense.proofpoint.com/v2/url?u=http-3A__gnu.org_licenses_gpl.html&d=DwIFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=AccF7D_1ucmacdhBYtneFmWraGWha6yRG9H7_2p_Oik&s=zdjTw6g4SPW8CaLqwVobBuIFl_6gZ7e13U4Vr0ZG7gQ&e=>
    
        >     This is free software: you are free to change and redistribute it.
    
        >     There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
    
        >     and "show warranty" for details.
    
        >     This GDB was configured as "x86_64-redhat-linux-gnu".
    
        >     For bug reporting instructions, please see:
    
        >     <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gnu.org_software_gdb_bugs_&d=DwIFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=AccF7D_1ucmacdhBYtneFmWraGWha6yRG9H7_2p_Oik&s=MnzJQxJz9eucCrn96S5RPQ0WkdldccSBcaBs0t3HQro&e=>...










    
        >     Reading symbols from /usr/local/sbin/ovs-vswitchd...done.
    
        >     [New LWP 2610]
    
        >     [New LWP 2607]
    
        >     [New LWP 2599]
    
        >     [New LWP 2601]
    
        >     [New LWP 2608]
    
        >     [New LWP 2606]
    
        >     [New LWP 2603]
    
        >     [New LWP 2605]
    
        >     [New LWP 2604]
    
        >     [New LWP 2602]
    
        >     [New LWP 2609]
    
        >     [Thread debugging using libthread_db enabled]
    
        >     Using host libthread_db library "/lib64/libthread_db.so.1".
    
        >     Core was generated by `/usr/local/sbin/ovs-vswitchd
    
        >     --pidfile=/root/run/ovs-vswitchd.pid'.
    
        >     Program terminated with signal 11, Segmentation fault.
    
        >     #0  0x0000000000686165 in vmxnet3_recv_pkts ()
    
        >     (gdb) bt
    
        >     #0  0x0000000000686165 in vmxnet3_recv_pkts ()
    
        >     #1  0x00000000007cbad4 in rte_eth_rx_burst (nb_pkts=32,
    
        >     rx_pkts=0x7fa2c67fb7b0, queue_id=0, port_id=0 '\000')
    
        >         at /data1/build/dpdk-stable-17.05.2/x86_64-native-linuxapp-gcc/include/rte_ethdev.h:2774
    
        >     #2  netdev_dpdk_rxq_recv (rxq=<optimized out>, batch=0x7fa2c67fb7a0)
    
        >     at lib/netdev-dpdk.c:1664
    
        >     #3  0x0000000000729641 in netdev_rxq_recv (rx=rx at entry=0x7fa2f424a800,
    
        >     batch=batch at entry=0x7fa2c67fb7a0) at lib/netdev.c:701
    
        >     #4  0x0000000000705bde in dp_netdev_process_rxq_port
    
        >     (pmd=pmd at entry=0x216e550, rx=0x7fa2f424a800, port_no=1) at
    
        >     lib/dpif-netdev.c:3114
    
        >     #5  0x0000000000705e46 in pmd_thread_main (f_=<optimized out>) at
    
        >     lib/dpif-netdev.c:3854
    
        >     #6  0x0000000000779584 in ovsthread_wrapper (aux_=<optimized out>) at
    
        >     lib/ovs-thread.c:348
    
        >     #7  0x00007fa2f7d55dc5 in start_thread (arg=0x7fa2c67fc700) at
    
        >     pthread_create.c:308
    
        >     #8  0x00007fa2f733973d in clone () at
    
        >     ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
    
        >
    
        >     On Wed, Sep 27, 2017 at 2:31 PM, BALL SUN <paulrbk at gmail.com> wrote:
    
        >     > so, it is suggested to try on  17.05.2?
    
        >     >
    
        >     > On Wed, Sep 27, 2017 at 12:23 PM, Darrell Ball <dball at vmware.com> wrote:
    
        >     >>
    
        >     >>
    
        >     >> On 9/26/17, 9:19 PM, "ovs-discuss-bounces at openvswitch.org on behalf of Darrell Ball" <ovs-discuss-bounces at openvswitch.org on behalf of dball at vmware.com> wrote:
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>     On 9/26/17, 8:26 PM, "BALL SUN" <paulrbk at gmail.com> wrote:
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>         below is the backtrace
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>         # gdb /usr/local/sbin/ovs-vswitchd coredump
    
        >     >>
    
        >     >>         GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-94.el7
    
        >     >>
    
        >     >>         Copyright (C) 2013 Free Software Foundation, Inc.
    
        >     >>
    
        >     >>         License GPLv3+: GNU GPL version 3 or later <https://urldefense.proofpoint.com/v2/url?u=http-3A__gnu.org_licenses_gpl.html&d=DwIFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=wa0yd0R7cqOWvjJOu1dSW07R0zHnvfzd9YivtLlPVpc&s=vsFbzhYP_z61VhdI1w-dlGINFOOOMgkZjMhs4SjvOM8&e=>
    
        >     >>
    
        >     >>         This is free software: you are free to change and redistribute it.
    
        >     >>
    
        >     >>         There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
    
        >     >>
    
        >     >>         and "show warranty" for details.
    
        >     >>
    
        >     >>         This GDB was configured as "x86_64-redhat-linux-gnu".
    
        >     >>
    
        >     >>         For bug reporting instructions, please see:
    
        >     >>
    
        >     >>         <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gnu.org_software_gdb_bugs_&d=DwIFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=wa0yd0R7cqOWvjJOu1dSW07R0zHnvfzd9YivtLlPVpc&s=MOrbM5qkYI0I-SbDgsQ3lYwkcqQcDD64Vez202bqEng&e=>...
    
        >     >>
    
        >     >>         Reading symbols from /usr/local/sbin/ovs-vswitchd...done.
    
        >     >>
    
        >     >>         [New LWP 2716]
    
        >     >>
    
        >     >>         [New LWP 2707]
    
        >     >>
    
        >     >>         [New LWP 2712]
    
        >     >>
    
        >     >>         [New LWP 2711]
    
        >     >>
    
        >     >>         [New LWP 2713]
    
        >     >>
    
        >     >>         [New LWP 2708]
    
        >     >>
    
        >     >>         [New LWP 2714]
    
        >     >>
    
        >     >>         [New LWP 2715]
    
        >     >>
    
        >     >>         [New LWP 2706]
    
        >     >>
    
        >     >>         [New LWP 2710]
    
        >     >>
    
        >     >>         [New LWP 2709]
    
        >     >>
    
        >     >>         [Thread debugging using libthread_db enabled]
    
        >     >>
    
        >     >>         Using host libthread_db library "/lib64/libthread_db.so.1".
    
        >     >>
    
        >     >>         Core was generated by `/usr/local/sbin/ovs-vswitchd
    
        >     >>
    
        >     >>         --pidfile=/root/run/ovs-vswitchd.pid'.
    
        >     >>
    
        >     >>         Program terminated with signal 11, Segmentation fault.
    
        >     >>
    
        >     >>         #0  0x000000000068ad75 in vmxnet3_recv_pkts ()
    
        >     >>
    
        >     >>         (gdb) next
    
        >     >>
    
        >     >>         The program is not being run.
    
        >     >>
    
        >     >>         (gdb) bt
    
        >     >>
    
        >     >>         #0  0x000000000068ad75 in vmxnet3_recv_pkts ()
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>     hmm, interesting signature
    
        >     >>
    
        >     >>     maybe you want to drill down on this function to see where the seg fault was.
    
        >     >>
    
        >     >>     Btw, ovs-dpdk master/2.8 just moved to 17.05.2 and I see a release note
    
        >     >>
    
        >     >>     for vmxnet3 here
    
        >     >>
    
        >     >>     https://urldefense.proofpoint.com/v2/url?u=http-3A__dpdk.org_doc_guides-2D17.05_rel-5Fnotes_release-5F17-5F05.html&d=DwIGaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=qUaugJc_cpKZ0k9zQTz2QTAB2P5PlyAq5c_cc5Sanr0&s=4sfd93KUta1pbiZYJxgtDgKvYc0gUKKLiF9jb_Zttto&e=
    
        >     >>
    
        >     >> “net/vmxnet3: fix filtering on promiscuous disabling
    
        >     >> net/vmxnet3: fix receive queue memory leak“
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>         #1  0x00000000007d2252 in rte_eth_rx_burst (nb_pkts=32,
    
        >     >>
    
        >     >>         rx_pkts=0x7f3e4bffe7b0, queue_id=0, port_id=0 '\000')
    
        >     >>
    
        >     >>             at /data1/build/dpdk-stable- rte_eth_rx_burst /x86_64-native-linuxapp-gcc/include/rte_ethdev.h:2774
    
        >     >>
    
        >     >>         #2  netdev_dpdk_rxq_recv (rxq=<optimized out>, batch=0x7f3e4bffe7a0)
    
        >     >>
    
        >     >>         at lib/netdev-dpdk.c:1664
    
        >     >>
    
        >     >>         #3  0x000000000072e571 in netdev_rxq_recv (rx=rx at entry=0x7f3e5cc4a680,
    
        >     >>
    
        >     >>         batch=batch at entry=0x7f3e4bffe7a0) at lib/netdev.c:701
    
        >     >>
    
        >     >>         #4  0x000000000070ab0e in dp_netdev_process_rxq_port
    
        >     >>
    
        >     >>         (pmd=pmd at entry=0x29e5e20, rx=0x7f3e5cc4a680, port_no=1) at
    
        >     >>
    
        >     >>         lib/dpif-netdev.c:3114
    
        >     >>
    
        >     >>         #5  0x000000000070ad76 in pmd_thread_main (f_=<optimized out>) at
    
        >     >>
    
        >     >>         lib/dpif-netdev.c:3854
    
        >     >>
    
        >     >>         #6  0x000000000077e4b4 in ovsthread_wrapper (aux_=<optimized out>) at
    
        >     >>
    
        >     >>         lib/ovs-thread.c:348
    
        >     >>
    
        >     >>         #7  0x00007f3e5fe07dc5 in start_thread (arg=0x7f3e4bfff700) at
    
        >     >>
    
        >     >>         pthread_create.c:308
    
        >     >>
    
        >     >>         #8  0x00007f3e5f3eb73d in clone () at
    
        >     >>
    
        >     >>         ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
    
        >     >>
    
        >     >>         (gdb) bt
    
        >     >>
    
        >     >>
    
        >     >>
    
        >     >>         On Wed, Sep 27, 2017 at 9:15 AM, Sun Paul <paulrbk at gmail.com> wrote:
    
        >     >>
    
        >     >>         > Hi
    
        >     >>
    
        >     >>         >
    
        >     >>
    
        >     >>         > I am trying to decode the core dump, however, I am not familiar with
    
        >     >>
    
        >     >>         > the command to run the debug, can you please provide the steps?
    
        >     >>
    
        >     >>         >
    
        >     >>
    
        >     >>         > the linux version is CentOS7 (3.10.0-514.el7.x86_64), and we currently
    
        >     >>
    
        >     >>         > try to run the OVS+DPDK as a VMware guest. the expected topology would
    
        >     >>
    
        >     >>         > be connect another two nodes with this OVS+DPDK vm.
    
        >     >>
    
        >     >>         >
    
        >     >>
    
        >     >>         > On Wed, Sep 27, 2017 at 5:13 AM, Darrell Ball <dball at vmware.com> wrote:
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >> On 9/25/17, 11:18 PM, "Sun Paul" <paulrbk at gmail.com> wrote:
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     hi
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     I am trying to use the vmxnet3 (0000:03:00.0) as the dpdk0 interface.
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     # ./dpdk-devbind.py --status
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     Network devices using DPDK-compatible driver
    
        >     >>
    
        >     >>         >>     ============================================
    
        >     >>
    
        >     >>         >>     0000:03:00.0 'VMXNET3 Ethernet Controller 07b0' drv=igb_uio unused=
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     Network devices using kernel driver
    
        >     >>
    
        >     >>         >>     ===================================
    
        >     >>
    
        >     >>         >>     0000:02:01.0 '82545EM Gigabit Ethernet Controller (Copper) 100f'
    
        >     >>
    
        >     >>         >>     if=ens33 drv=e1000 unused=igb_uio *Active*
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     Other Network devices
    
        >     >>
    
        >     >>         >>     =====================
    
        >     >>
    
        >     >>         >>     0000:0b:00.0 'VMXNET3 Ethernet Controller 07b0' unused=igb_uio
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     so, when I try to execute "ovs-vsctl add-port g1 dpdk0 -- set
    
        >     >>
    
        >     >>         >>     Interface dpdk0 type=dpdk options:dpdk-devargs=0000:03:00.0"
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     I got core dump as below.
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >> [Darrell]
    
        >     >>
    
        >     >>         >> Pls decode your core dump (btw: probably you will get this request on some of the other threads you created)
    
        >     >>
    
        >     >>         >> What version of rhel is this ?
    
        >     >>
    
        >     >>         >> Can you describe your environment and your setup steps?
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     Sep 27 11:28:50 dlocalhost ovs-vsctl: ovs|00001|vsctl|INFO|Called as
    
        >     >>
    
        >     >>         >>     ovs-vsctl del-port g1 dpdk0
    
        >     >>
    
        >     >>         >>     Sep 27 11:28:50 dlocalhost ovs-vsctl: ovs|00002|db_ctl_base|ERR|no
    
        >     >>
    
        >     >>         >>     port named dpdk0
    
        >     >>
    
        >     >>         >>     Sep 27 11:28:51 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00071|memory|INFO|20076 kB peak resident set size after 10.3
    
        >     >>
    
        >     >>         >>     seconds
    
        >     >>
    
        >     >>         >>     Sep 27 11:28:51 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:28:51Z|00071|memory|INFO|20076 kB peak resident set size
    
        >     >>
    
        >     >>         >>     after 10.3 seconds
    
        >     >>
    
        >     >>         >>     Sep 27 11:28:51 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:28:51Z|00072|memory|INFO|handlers:2 ports:1
    
        >     >>
    
        >     >>         >>     revalidators:2 rules:5
    
        >     >>
    
        >     >>         >>     Sep 27 11:28:51 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00072|memory|INFO|handlers:2 ports:1 revalidators:2 rules:5
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vsctl: ovs|00001|vsctl|INFO|Called as
    
        >     >>
    
        >     >>         >>     ovs-vsctl add-port g1 dpdk0 -- set Interface dpdk0 type=dpdk
    
        >     >>
    
        >     >>         >>     options:dpdk-devargs=0000:03:00.0
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00073|dpif_netdev|INFO|PMD thread on numa_id: 0, core id:  0
    
        >     >>
    
        >     >>         >>     created.
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:29:10Z|00073|dpif_netdev|INFO|PMD thread on numa_id: 0,
    
        >     >>
    
        >     >>         >>     core id:  0 created.
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:29:10Z|00074|dpif_netdev|INFO|There are 1 pmd threads on
    
        >     >>
    
        >     >>         >>     numa node 0
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00074|dpif_netdev|INFO|There are 1 pmd threads on numa node 0
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00075|netdev_dpdk|WARN|Rx checksum offload is not supported on
    
        >     >>
    
        >     >>         >>     port 0
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:29:10Z|00075|netdev_dpdk|WARN|Rx checksum offload is not
    
        >     >>
    
        >     >>         >>     supported on port 0
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:29:10Z|00076|netdev_dpdk|ERR|Interface dpdk0 MTU (1500)
    
        >     >>
    
        >     >>         >>     setup error: Operation not supported
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     2017-09-27T03:29:10Z|00077|netdev_dpdk|ERR|Interface dpdk0(rxq:1
    
        >     >>
    
        >     >>         >>     txq:2) configure error: Operation not supported
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00076|netdev_dpdk|ERR|Interface dpdk0 MTU (1500) setup error:
    
        >     >>
    
        >     >>         >>     Operation not supported
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost ovs-vswitchd[2858]:
    
        >     >>
    
        >     >>         >>     ovs|00077|netdev_dpdk|ERR|Interface dpdk0(rxq:1 txq:2) configure
    
        >     >>
    
        >     >>         >>     error: Operation not supported
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost kernel: pmd12[2885]: segfault at 64 ip
    
        >     >>
    
        >     >>         >>     000000000067fa98 sp 00007f588d7f9680 error 4 in
    
        >     >>
    
        >     >>         >>     ovs-vswitchd[400000+566000]
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost abrt-hook-ccpp: Process 2858 (ovs-vswitchd)
    
        >     >>
    
        >     >>         >>     of user 0 killed by SIGSEGV - dumping core
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost abrt-hook-ccpp: Failed to create
    
        >     >>
    
        >     >>         >>     core_backtrace: waitpid failed: No child processes
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost systemd: ovs-vswitchd.service: main process
    
        >     >>
    
        >     >>         >>     exited, code=killed, status=11/SEGV
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost systemd: Unit ovs-vswitchd.service entered
    
        >     >>
    
        >     >>         >>     failed state.
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:10 dlocalhost systemd: ovs-vswitchd.service failed.
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:11 dlocalhost abrt-server: Executable
    
        >     >>
    
        >     >>         >>     '/usr/local/sbin/ovs-vswitchd' doesn't belong to any package and
    
        >     >>
    
        >     >>         >>     ProcessUnpackaged is set to 'no'
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:11 dlocalhost abrt-server: 'post-create' on
    
        >     >>
    
        >     >>         >>     '/var/spool/abrt/ccpp-2017-09-27-11:29:10-2858' exited with 1
    
        >     >>
    
        >     >>         >>     Sep 27 11:29:11 dlocalhost abrt-server: Deleting problem directory
    
        >     >>
    
        >     >>         >>     '/var/spool/abrt/ccpp-2017-09-27-11:29:10-2858'
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>
    
        >     >>
    
        >     >>         >>     On Tue, Sep 26, 2017 at 1:09 PM, Darrell Ball <dball at vmware.com> wrote:
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     > On 9/25/17, 9:26 PM, "Sun Paul" <paulrbk at gmail.com> wrote:
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     >     we are evauluating the DPDK on VMXNET3 , is sit supported in the VMware guest?
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     > I see what you are doing now; I think it should be supported.
    
        >     >>
    
        >     >>         >>     > What driver are you using to bind the “vmxnet3 nic” ?
    
        >     >>
    
        >     >>         >>     > Probably you should provide all the steps you are using and your environment.
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     >
    
        >     >>
    
        >     >>         >>     >     On Tue, Sep 26, 2017 at 12:09 PM, Darrell Ball <dball at vmware.com> wrote:
    
        >     >>
    
        >     >>         >>     >     > Do you have a hard requirement to use vmxnet3 ?
    
        >     >>
    
        >     >>         >>     >     > What are you requirements otherwise ?
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     > On 9/25/17, 9:06 PM, "ovs-discuss-bounces at openvswitch.org on behalf of Darrell Ball" <ovs-discuss-bounces at openvswitch.org on behalf of dball at vmware.com> wrote:
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >     On 9/25/17, 8:31 PM, "Sun Paul" <paulrbk at gmail.com> wrote:
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >         Hi
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >         thank for the reply. but can you explain what I should do?
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >     Do you have a hard requirement to use ESXi and vmxnet3 ?
    
        >     >>
    
        >     >>         >>     >     >     What are you requirements otherwise ?
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >
    
        >     >>
    
        >     >>         >>     >     >         On Tue, Sep 26, 2017 at 3:18 AM, Darrell Ball <dball at vmware.com> wrote:
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         > On 9/25/17, 2:53 AM, "ovs-discuss-bounces at openvswitch.org on behalf of Sun Paul" <ovs-discuss-bounces at openvswitch.org on behalf of paulrbk at gmail.com> wrote:
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >     Hi
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >     I am trying to have a OVS+DPDK setup on a VM guest in Vmware
    
        >     >>
    
        >     >>         >>     >     >         >     environment. the network adapter type for the dpdk is vmxnet3.
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         > The present support for guest connectivity for OVS-DPDK is here:
    
        >     >>
    
        >     >>         >>     >     >         > https://urldefense.proofpoint.com/v2/url?u=http-3A__docs.openvswitch.org_en_latest_topics_dpdk_vhost-2Duser_&d=DwIFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=U9YEU77bZamqSg208ehS8-3M4sgEVZoZE9yILybkOuU&s=6iVy8pqpuoo_1QAliEi37GLAiW2wEkUl5UGZMf7l5WA&e=
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >     when I am trying to add-port on it, it failed. any idea?
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00058|netdev_dpdk|ERR|Interface dpdk0 MTU (1500)
    
        >     >>
    
        >     >>         >>     >     >         >     setup error: Operation not supported
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00059|netdev_dpdk|ERR|Interface dpdk0(rxq:1
    
        >     >>
    
        >     >>         >>     >     >         >     txq:2) configure error: Operation not supported
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >     the full log is shown below.
    
        >     >>
    
        >     >>         >>     >     >         >
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:26Z|00051|ofproto_dpif|INFO|netdev at ovs-netdev:
    
        >     >>
    
        >     >>         >>     >     >         >     Datapath supports ct_orig_tuple6
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00039|ofproto_dpif|INFO|netdev at ovs-netdev: MPLS label stack length
    
        >     >>
    
        >     >>         >>     >     >         >     probed as 3
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00040|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     truncate action
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00041|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     unique flow ids
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00042|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports clone
    
        >     >>
    
        >     >>         >>     >     >         >     action
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00043|ofproto_dpif|INFO|netdev at ovs-netdev: Max sample nesting
    
        >     >>
    
        >     >>         >>     >     >         >     level probed as 10
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00044|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     eventmask in conntrack action
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00045|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_state
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00046|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_zone
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00047|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_mark
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00048|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_label
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00049|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_state_nat
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00050|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_orig_tuple
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00051|ofproto_dpif|INFO|netdev at ovs-netdev: Datapath supports
    
        >     >>
    
        >     >>         >>     >     >         >     ct_orig_tuple6
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:26Z|00052|bridge|INFO|bridge c1: added interface c1
    
        >     >>
    
        >     >>         >>     >     >         >     on port 65534
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00052|bridge|INFO|bridge c1: added interface c1 on port 65534
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost kernel: device c1 entered promiscuous mode
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:26Z|00053|bridge|INFO|bridge c1: using datapath ID
    
        >     >>
    
        >     >>         >>     >     >         >     000076ff8ff75d4e
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00053|bridge|INFO|bridge c1: using datapath ID 000076ff8ff75d4e
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:26Z|00054|connmgr|INFO|c1: added service controller
    
        >     >>
    
        >     >>         >>     >     >         >     "punix:/usr/local/var/run/openvswitch/c1.mgmt"
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:26 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00054|connmgr|INFO|c1: added service controller
    
        >     >>
    
        >     >>         >>     >     >         >     "punix:/usr/local/var/run/openvswitch/c1.mgmt"
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vsctl: ovs|00001|vsctl|INFO|Called as
    
        >     >>
    
        >     >>         >>     >     >         >     ovs-vsctl add-port c1 dpdk0 -- set Interface dpdk0 type=dpdk
    
        >     >>
    
        >     >>         >>     >     >         >     options:dpdk-devargs=0000:03:00.0
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00055|dpif_netdev|INFO|PMD thread on numa_id: 0,
    
        >     >>
    
        >     >>         >>     >     >         >     core id:  0 created.
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00055|dpif_netdev|INFO|PMD thread on numa_id: 0, core id:  0
    
        >     >>
    
        >     >>         >>     >     >         >     created.
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00056|dpif_netdev|INFO|There are 1 pmd threads on
    
        >     >>
    
        >     >>         >>     >     >         >     numa node 0
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00056|dpif_netdev|INFO|There are 1 pmd threads on numa node 0
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00057|netdev_dpdk|WARN|Rx checksum offload is not supported on
    
        >     >>
    
        >     >>         >>     >     >         >     port 0
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00057|netdev_dpdk|WARN|Rx checksum offload is not
    
        >     >>
    
        >     >>         >>     >     >         >     supported on port 0
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00058|netdev_dpdk|ERR|Interface dpdk0 MTU (1500)
    
        >     >>
    
        >     >>         >>     >     >         >     setup error: Operation not supported
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00059|netdev_dpdk|ERR|Interface dpdk0(rxq:1
    
        >     >>
    
        >     >>         >>     >     >         >     txq:2) configure error: Operation not supported
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd:
    
        >     >>
    
        >     >>         >>     >     >         >     2017-09-26T09:51:57Z|00060|bridge|INFO|bridge c1: added interface
    
        >     >>
    
        >     >>         >>     >     >         >     dpdk0 on port 1
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost kernel: pmd12[2671]: segfault at 64 ip
    
        >     >>
    
        >     >>         >>     >     >         >     000000000067fa98 sp 00007f68faffc680 error 4 in
    
        >     >>
    
        >     >>         >>     >     >         >     ovs-vswitchd[400000+566000]
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00058|netdev_dpdk|ERR|Interface dpdk0 MTU (1500) setup error:
    
        >     >>
    
        >     >>         >>     >     >         >     Operation not supported
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00059|netdev_dpdk|ERR|Interface dpdk0(rxq:1 txq:2) configure
    
        >     >>
    
        >     >>         >>     >     >         >     error: Operation not supported
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost ovs-vswitchd[2624]:
    
        >     >>
    
        >     >>         >>     >     >         >     ovs|00060|bridge|INFO|bridge c1: added interface dpdk0 on port 1
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:57 plocalhost abrt-hook-ccpp: Process 2624 (ovs-vswitchd)
    
        >     >>
    
        >     >>         >>     >     >         >     of user 0 killed by SIGSEGV - dumping core
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost abrt-hook-ccpp: Failed to create
    
        >     >>
    
        >     >>         >>     >     >         >     core_backtrace: waitpid failed: No child processes
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost systemd: ovs-vswitchd.service: main process
    
        >     >>
    
        >     >>         >>     >     >         >     exited, code=killed, status=11/SEGV
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost systemd: Unit ovs-vswitchd.service entered
    
        >     >>
    
        >     >>         >>     >     >         >     failed state.
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost systemd: ovs-vswitchd.service failed.
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost abrt-server: Executable
    
        >     >>
    
        >     >>         >>     >     >         >     '/usr/local/sbin/ovs-vswitchd' doesn't belong to any package and
    
        >     >>
    
        >     >>         >>     >     >         >     ProcessUnpackaged is set to 'no'
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost abrt-server: 'post-create' on
    
        >     >>
    
        >     >>         >>     >     >         >     '/var/spool/abrt/ccpp-2017-09-26-17:51:57-2624' exited with 1
    
        >     >>
    
        >     >>         >>     >     >         >     Sep 26 17:51:58 plocalhost abrt-server: Deleting problem directory
    
        >     >>
    
        >     >>         >>     >     >         >     '/var/spool/abrt/ccpp-2017-09-26-17:51:57-2624'
    
        >     >>
    
        >     >>         >>     >     >         >     _______________________________________________
    
        >     >>
    
        >     >>         >>     >     >         >     discuss mailing list
    
        >     >>
    
        >     >>         >>     >     >         >     discuss at openvswitch.org
    
        >     >>
    
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