[Snort-users] Fwd: Snort 'hangs'
snort at ...15979...
Thu Apr 10 00:26:46 EDT 2014
>>Snort: s5: session exceeded configured max bytes to queue LWstate 0x1 LWFlags (have updated memcap to half the max @500MB)
As far as I understand, the above message is related to the max_queued_bytes of the S5 TCP configurations and not memcap:
http://manual.snort.org/node73.html (look for the 12th item in the table). What is different from what I have seen is the part that says "LWstate 0x1 LWFlags". Usually, this is represented in bytes.
Date: Thu, 10 Apr 2014 13:13:02 +1200
From: conma293 at ...11827...
To: thopeter at ...589...; snort-users at lists.sourceforge.net
Subject: Re: [Snort-users] Fwd: Snort 'hangs'
im also going to think about reducing memcap back to default - may be putting too much resource on the VM; which has 4gb of the 8gb host RAM
On Thu, Apr 10, 2014 at 12:40 PM, Matheus Condi'ez <conma293 at ...11827...> wrote:
,,_ -*> Snort! <*-
o" )~ Version 18.104.22.168 GRE (Build 47)
'''' By Martin Roesch & The Snort Team: http://www.snort.org/snort/snort-team
Copyright (C) 2014 Cisco and/or its affiliates. All rights reserved.
Copyright (C) 1998-2013 Sourcefire, Inc., et al.
Using libpcap version 1.1.1
Using PCRE version: 8.12 2011-01-15
Using ZLIB version: 22.214.171.124
Just upgraded to community rules 2960 (with additional openSSL hearbeat rules from VRT for the boss - thankyou very much)
ive got one error here in full -->
S5: Session exceeded configured max segs to queue 2621 using 2621 segs (client queue) <ip><port> --> <ip><port> (0): LWstate 0x9 LWFlags 0x406007
Also - it just crashed on me again, the other sensor is all go, hopefully the rules upgrade will fix this issue
On Thu, Apr 10, 2014 at 3:04 AM, Tom Peters (thopeter) <thopeter at ...589...> wrote:
I'm taking a look at the source code.
Do you know exactly which build of Snort you are running?
>> Snort: s5: session exceeded configured max bytes to queue LWstate 0x1 LWFlags (have updated memcap to half the max @500MB)
Is this the exact error message? Could you send me the complete message?
Sourcefire Snort Development
From: conma293 <conma293 at ...11827...>
Date: Wednesday, April 9, 2014 1:15 AM
To: Snortusers <snort-users at lists.sourceforge.net>
Subject: [Snort-users] Fwd: Snort 'hangs'
Sent from my iPhone
Begin forwarded message:
From: "Matheus Condi'ez" <conma293 at ...11827...>
Date: 9 April 2014 4:17:49 PM NZST
To: snort-users at lists.sourceforge.net
Subject: Snort 'hangs'
I have Snort running as an Ubuntu VM on a fedora host in two seperate dev environments with differing levels of traffic - one predominantly smtp (low levels) one web (high levels).
Current ruleset is community rules 28th Mar
The sensor in the low traffic smtp environment runs smooth
The sensor in the other environment however...
Snort runs fine for 3~9days, it will then stop outputting U2's for Barnyard. Upon attempting to kill the snort process under sudo and/or root it fails to actually kill the process. Killing the barnyard2 process is fine, as is killing the snort process
if it is still outputting unified2.
I often see the following outputs, which may or may not be related (almost certainly not by2) -
Snort: s5: session exceeded configured max bytes to queue LWstate 0x1 LWFlags (have updated memcap to half the max @500MB)
Barnyard2: 'lonely packet'; WARNING database called with Event Type  (P)acket [0x0]
I am at a loss as what to do now as I seem to have to reboot the sensor to kill the snort process every couple of days or so.
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