[netsa-tools-discuss] rwflowpack segfault since upgrade to 3.9.0

Scott Fringer scfringe at cisco.com
Mon Oct 13 11:04:10 EDT 2014


Mark;

  I appreciate the heads up. I'll keep an eye out for the update and put
it through its paces here once available.

Thanks,
 Scott

On 10/10/14, 3:58 PM, Mark Thomas wrote:
> Scott-
> 
> Thank you for your email.
> 
> I want to let you know that a release of libfixbuf will be available
> next week that resolves the issue you are seeing.
> 
> Thanks again, and enjoy your weekend.
> 
> -Mark
> 
> 
> On Tue, 7 Oct 2014 09:25:49 -0400, Scott Fringer wrote:
> 
>> I recently upgraded a system from SiLK toolset 3.8.3 to 3.9.0 and
>> libfixbuf 1.5.0 to 1.6.0. The system is running rwflowpack to receive
>> netflow v9 records from several devices. Since the upgrade, the
>> rwflowpack service segfaults rather frequently.
>>
>> In the rwflowpack log file, the last two lines are always:
>>
>> Oct  7 09:05:49 <hostname> rwflowpack[31951]: 'S0': noticed disconnect
>> by 10.220.15.27:56223, domain 0x0001
>> Oct  7 09:05:49 <hostname> rwflowpack[31951]: NetFlow V9 sequence number
>> mismatch for domain 0x0001, expecting 0x0000 received 0x25588e
>>
>> And syslog indicates:
>>
>> Oct  7 09:05:49 003-2COG01 kernel: [4660358.279502] rwflowpack[31952]:
>> segfault at 7f302c00e8b0 ip 00007f302c00e8b0 sp 00007f303242fb88 error 15
>>
>> I've re-read release notes, and I don't think I've missed a requisite
>> change in the configuration files, nor a compile switch during build
>> time. Is there some additional debugging that can be performed to
>> troubleshoot this issue?
>>
>> Thanks,
>>  Scott


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