drop request firstseqnum is 0

elof2 at sentor.se elof2 at sentor.se
Mon Oct 26 14:17:57 EDT 2015


Hi Carter!

Could you please make a new official release of your latest code?

You fixed this bug (and many more) a year ago, but it's still an issue
since your official stable release is still v3.0.8/v3.0.8.1.



Ports builders only update their packages when you release a new stable 
version...

/Elof


On Tue, 4 Nov 2014, Carter Bullard wrote:

> Hey /Elof,
> Yes, this is caused by poorly formed UDT packets.  UDT is a pretty cool
> high performance transport protocol that is used in super computer and
> cloud environments and argus has specific logic to track it.  Argus
> has detected a bad UDT control packet, but it should be a debug/info message,
> not a terminating situation, even though its a protocol violation.
>
> Apply this patch which comments out the test for protocol correctness, and changes
> the log message from a LOG_ERR to LOG_INFO, and all will be well:
>
> ==== //depot/argus/argus/argus/ArgusUdt.c#8 - /Users/carter/argus/argus/argus/ArgusUdt.c ====
> 285a286
>> #ifdef ARGUSDEBUG
> 288,289c289
> <                         ArgusLog(LOG_ERR, "drop request firstseqnum is 0");
> < #ifdef ARGUSDEBUG
> ---
>>                         ArgusLog(LOG_INFO, "drop request firstseqnum is 0");
> 534a535
>> #ifdef ARGUSDEBUG
> 537,538c538
> <                         ArgusLog(LOG_ERR, "drop request firstseqnum is 0");
> < #ifdef ARGUSDEBUG
> ---
>>                         ArgusLog(LOG_INFO, "drop request firstseqnum is 0");
> 695a696
>> /*
> 698a700
>> */
> 757a760
>> /*
> 760a764
>> */
>
>
> Carter
>
>> On Nov 4, 2014, at 7:10 AM, elof2 at sentor.se wrote:
>>
>>
>> Hi Carter!
>>
>> Do you know what kind of traffic might cause argus to die like this:
>>
>> 04 Nov 14 12:10:01.590219 drop request firstseqnum is 0
>> 04 Nov 14 12:10:01.597120 stopped
>>
>>
>> It happens on one sensor approximately every two weeks. This makes things very hard to debug and to create a pcap that contain the problematic data.
>>
>> /Elof
>>
>



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