Hi Wenyu,

I was debugging a little bit and the issue is a NULL pointer deference
of be_cfg at   virtual_obs_id = smap_get(&be_cfg->other_config,
"virtual_obs_id");

Maybe adding if (valid_be_cfg) check before the deference? I will
leave you to fix it. Also I hope you can add a test case to this case.

Regards,
William


On Fri, Jun 24, 2016 at 1:42 PM, Ben Pfaff <b...@ovn.org> wrote:
> On Fri, Jun 24, 2016 at 05:25:57AM -0700, Wenyu Zhang wrote:
>> In virtual network, users want more info about the virtual point to observe 
>> the traffic.
>> It should be a string to provide clear info, not a simple interger ID.
>>
>> Introduce "other-config: virtual_obs_id" in IPFIX, which is a string 
>> configured by user.
>> Introduce an enterprise IPFIX entity "virtualObsID"(898) to export the 
>> value. The entity is a
>> variable-length string.
>>
>> Signed-off-by: Wenyu Zhang <wen...@vmware.com>
>
> Hi Wenyu.
>
> I reverted this commit because it dumps core in test 1048 "ofproto-dpif
> - Flow IPFIX sanity check" with the following backtrace.  It crashes
> the same way whether I use your original commit or my modified one.
>
> #0  hmap_first_with_hash (hmap=<optimized out>, hmap=<optimized out>,
>     hash=<optimized out>) at ../lib/hmap.h:328
> #1  smap_find__ (smap=0x94, key=key@entry=0x817f7ab "virtual_obs_id",
>     key_len=14, hash=2537071222) at ../lib/smap.c:366
> #2  0x0812b9d7 in smap_get_node (smap=0x9738a276,
>     key=0x817f7ab "virtual_obs_id") at ../lib/smap.c:198
> #3  0x0812ba30 in smap_get (smap=0x94, key=0x817f7ab "virtual_obs_id")
>     at ../lib/smap.c:189
> #4  0x08055a60 in bridge_configure_ipfix (br=<optimized out>)
>     at ../vswitchd/bridge.c:1237
> #5  bridge_reconfigure (ovs_cfg=0x94) at ../vswitchd/bridge.c:666
> #6  0x080568d3 in bridge_run () at ../vswitchd/bridge.c:2972
> #7  0x0804c9dd in main (argc=10, argv=0xffd8b934)
>     at ../vswitchd/ovs-vswitchd.c:112
>
> When you're ready, please post a fixed version.  Please start from the
> version that I committed.
>
> Before you post a patch, run the unit tests.
> _______________________________________________
> dev mailing list
> dev@openvswitch.org
> http://openvswitch.org/mailman/listinfo/dev
_______________________________________________
dev mailing list
dev@openvswitch.org
http://openvswitch.org/mailman/listinfo/dev

Reply via email to