Re: Fwd: [Users] SNMPstats module not returning data

We eventually figured out what the problem was. Running "make clean" and then recompiling a fresh copy fixed all of the crashing issues.

Because of some earlier linking issues before the make clean, there were errors in how structures were accessed. This eventually lead to a segfault. This is related to the problem and fix listed in the "Openser fails when compiled on Solaris 64bit" thread.

Cheers!

- Jeffrey Magder

Jeffrey Magder wrote:

I didn't realize you weren't forking. :-)

Does the crash happen even without the snmpstats.so module being loaded? If so, I probably can't help you any further until we figure out what is causing the crash. Keep me posted!

• Jeffrey Magder

Sergio Gutierrez wrote:

...

Thanks Terry

But now there is a Problem (I just reported either). When I run openser with fork=yes, it crashes!

I have an open thread which begun by reporting an issue about openser crashin when compiled on 64 bits; right now it is running compiled on 32 bits, but, when it is started with for=yes, it crashes.

This is the URL of the report.

http://openser.org/pipermail/users/2007-March/010035.html

Thanks!

On 3/29/07, *Terry Robert* <terryrobert@shaw.ca mailto:terryrobert@shaw.ca> wrote:

I experienced the same problem with the SNMPstats module. If you
run openser in foreground mode (fork=no), the module doesn't
initialize. Running in background mode fixes the problem.



---------- Forwarded message ----------
From: "Sergio Gutierrez" <saguti@gmail.com 

mailto:saguti@gmail.com> To: jmagder@somanetworks.com mailto:jmagder@somanetworks.com Date: Thu, 29 Mar 2007 10:59:26 -0500 Subject: Re: Fwd: [Users] SNMPstats module not returning data Hi Jeffrey,

This is the log of the agent when is started in debug mode, and
later Openser is started:

 /opt/net-snmp/sbin/snmpd -f -Dagentx -x tcp:localhost:705 2>&1
No log handling enabled - turning on stderr logging
registered debug token agentx, 1
agentx_register_app_config_handler: registering .conf token for
"agentxsocket"
agentx_register_app_config_handler: registering .conf token for
"agentxperms"
agentx_register_app_config_handler: registering .conf token for
"agentxRetries"
agentx_register_app_config_handler: registering .conf token for
"agentxTimeout"
Turning on AgentX master support.
agentx/master: initializing...
agentx/master: initializing...   DONE
NET-SNMP version 5.4
agentx/master: unexpected callback op 4
agentx/master: handle pdu (req=0x54fb3d2b,trans=0x0,sess=0x0)
agentx/master: open 0018efc0
agentx/master: opened 001ad130 = 5 with flags = a0
agentx/master: send response, stat 0
(req=0x54fb3d2b,trans=0x0,sess=0x0)
agentx_build: packet built okay

I have tried changing too the keywork agentXsocket to
agentXSocket, and with a minimal snmpd config, and still reports
error:

# /opt/net-snmp/bin/snmpwalk -v 2c -c public localhost     

.1.3.6.1.4.1.27483 OPENSER-REG-MIB::openser = No Such Object available on this agent at this OID

And the snmpd log:

agentx/master: send response, stat 0
(req=0x54fb3d2f,trans=0x0,sess=0x0)
agentx_build: packet built okay
agentx/master: handle pdu (req=0x54fb3d30,trans=0x0,sess=0x5)
agentx/master: send response, stat 0
(req=0x54fb3d30,trans=0x0,sess=0x5)
agentx_build: packet built okay

Thanks!


On 3/29/07, *Jeffrey Magder* <jmagder@somanetworks.com
<mailto:jmagder@somanetworks.com>> wrote:

    It looks like there is communication going on between the
    NetSNMP master
    agent, and OpenSER's SNMPStats sub-agent.  Would you be able
    to provide
    me some more of the /var/log/snmpd.log snmpd
    logs?  Specifically, I'm
    looking for what happens after:

    Turning on AgentX master support.
    agentx/master: initializing...
    agentx/master: initializing...   DONE
    NET-SNMP version 5.3.1

    There should be something similar to the following:

    agentx/master: unexpected callback op 4
    agentx/master: handle pdu (req=0x1da53a0c,trans=0x0,sess=0x0)
    agentx/master: open 0x81137c8
    agentx/master: opened 0x814b558 = 6 with flags = a0
    agentx/master: send response, stat 0
    (req=0x1da53a0c,trans=0x0,sess=0x0)

    If thats there, I'm wondering if you have set up any special 

view restrictions for certain parts of the OID Tree given a certain community strings? Perhaps it would be helpful to rule that out with a minimal snmpd.conf file containing only:

    rocommunity  public
    master agentx

    Finally, I don't think this matters (it doesn't matter on my
    system),
    but could you change:

    agentXsocket tcp:localhost:705  ---> agentXSocket
    tcp:localhost:705

    The "S" wasn't capitalized.  :-)

    Thanks again!

    - Jeffrey Magder

    Sergio Gutierrez wrote:
    > Hi Jefrey
    >
    > Thanks for your answer.
    >
    > I will reply every point:
    >
    > # /opt/net-snmp/bin/snmpwalk -v 2c -c community localhost
    > .1.3.6.1.4.1.27483
    > OPENSER-REG-MIB::openser = No Such Object available on this
    agent at
    > this OID
    >
    > # ps -ef | grep snmpd
    >     root  1649   579   0 17:50:07 pts/2       0:17
    > /opt/net-snmp/sbin/snmpd -d -f -Dagentx -x tcp:localhost:705
    >     root  2935  2778   0 09:59:21 pts/3       0:00 grep snmpd
    > (I am running debug mode; the syntax of ps command is a
    little bti
    > different because I am using Solaris)
    >
    > # grep -i agentx /var/log/snmpd.log
    > agentx_build: packet built okay
    > agentx/master: handle pdu (req=0x3ac55fdb,trans=0x0,sess=0xf)
    > agentx/master: send response, stat 0
    (req=0x3ac55fdb,trans=0x0,sess=0xf)
    > agentx_build: packet built okay
    > agentx/master: handle pdu (req=0x3ac55fdc,trans=0x0,sess=0xf)
    > agentx/master: send response, stat 0
    (req=0x3ac55fdc,trans=0x0,sess=0xf)
    > agentx_build: packet built okay
    > agentx/master: handle pdu (req=0x3ac55fdd,trans=0x0,sess=0xf)
    > agentx/master: send response, stat 0
    (req=0x3ac55fdd,trans=0x0,sess=0xf)
    > agentx_build: packet built okay
    > ...
    >
    > # cat /opt/net-snmp/share/snmp/snmpstats.conf
    > agentXsocket tcp:localhost:705
    >
    > # cat /opt/net-snmp/share/snmp/snmpd.conf
    > syslocation  XXXX
    > syscontact  XXXX
    > agentaddress udp:161
    > rocommunity  community localhost
    > master agentx
    >
    > As you can see, both of the files are located at the same
    directory.
    >
    > Finally, I do have tried the check. I can see Openser starts
    OK and
    > the master agent receives the connection of the sub agent.
    >
    > Thank you very much for your help.
    >
    > Kind regards.
    >
    > Sergio G.
    >
    >
    >
    >
    >
    > On 3/29/07, *jmagder* < jmagder@somanetworks.com
    <mailto:jmagder@somanetworks.com>
    > <mailto: jmagder@somanetworks.com
    <mailto:jmagder@somanetworks.com>>> wrote:
    >
    >     Hi Sergio,
    >
    >     First off, could you try running
    "/opt/net-snmp/bin/snmpwalk -v 2c -c
    >     community sipserver  .1.3.6.1.4.1.27483"?  If that isn't
    succeeding,
    >     then it would greatly help me debug your problem if you
    could
    >     answer the
    >     following questions:
    >
    >     1) What is the output of "ps aux | grep snmpd"?
    >
    >     2) What is the output of "cat /var/log/messages | grep
    AgentX"
    >
    >     3) Can you show me the contents of snmpstats.conf ?
    >
    >     4) Does snmpd.conf contain "master agentx"?
    >
    >     5) Is snmpd.conf located in the same directory as
    snmpstats.conf?
    >
    >     6) Have you tried the steps in "Testing for a proper
    >     Configuration" in
    >     section 1.6.4?
    >
    >     Thanks Sergio!
    >
    >     - Jeffrey Magder
    >
    >     Sergio Gutierrez wrote:
    >     > Hi list.
    >     >
    >     > I have installed Openser 1.2.0, with Net-snmp version
    5.4 to support
    >     > the SNMPstats module. I have configured the subagent
    according to
    >     the
    >     > instructions on the documentation, but I am not being
    able to obtain
    >     > any data.
    >     >
    >     > I am running both products on Solaris 10 Sparc.
    >     >
    >     > # /opt/net-snmp/bin/snmpwalk -v 2c -c community 

sipserver > > .1.3.6.1.4.1.27483.3.1.1.1.1.1.1 > > SNMPv2-SMI::enterprises.27483.3.1.1.1.1.1 = No Such Object available > > on this agent at this OID > > > > # /opt/net-snmp/bin/snmpwalk -v 2c -c community sipserver > > openserSIPProtocolVersion > > SNMPv2-SMI::enterprises.27483.3.1.1.1.1.1 = No Such Object available > > on this agent at this OID > > > > Is there any other thing I should do after compiling and > configuring? > > > > Thanks in advance for your attention > > > > Kind Regards. > > > > Sergio Gutiérrez > > > > > > > >

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