[ net-snmp-Bugs-1450669 ] a perl agentx consumes memory

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Bugs item #1450669, was opened at 2006-03-15 15:18
Message generated for change (Comment added) made by kzofny
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Category: perl
Group: agentx
Status: Open
Resolution: None
Priority: 5
Submitted By: Kevin (kzofny)
Assigned to: Nobody/Anonymous (nobody)
Summary: a perl agentx consumes memory

Initial Comment:
Hello,

I'm having a problem with the perl interface of Net-
SNMP (not the embedded-perl option). I've tried 
several things (perl 5.6.2, 5.8.0, perl 5.8.7, Net-
SNMP 5.1.0.3, Net-SNMP 5.2.2) all to no avail. I get 
the same results with regards to memory usage: more, 
more, more. I have tried Net-SNMP 5.3.0.1 but 
couldn't seem to get the agentx process to respond at 
all.

We would like to create a perl agentx agent to answer 
queries. The sample code (below) has been reduced to 
a minimum yet exhibits a memory problem.

What I am seeing is a never ending rise in the 
requests for memory. An strace of the process shows 
the brk point moving 10 steps forward, one step back. 
I've included a snippet of the brk grepped out of the 
trace.

I've placed the gory details in an attachment. Pretty 
much it's a vanilla perl compile (64bit-ish) and a 
vanilla NetSNMP to get the perl modules installed.

Briefly the system is RH AS 3 x86_64.

I see a never-ending rise of the break point (brk). 
The attachment has the minimal code (60 lines?) and a 
snippet of the strace output.

I appreciate any insight you might provide as to why 
this thing grows without showing signs of any end. We 
are keen on this feature if it will work.  I'm 
surprised I see no similar bug report given I can 
produce it in so many combinations.  

Thank you for your help.

Kevin Zachmann


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>Comment By: Kevin (kzofny)
Date: 2006-03-16 17:31

Message:
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No, I hadn't actually thought of that. Funny, but I don't 
think I have a 32bit system around me. I could try Fedora 
at home but that seems to stray from the focus (ie RH 
Production environments).  It would take a few days but 
I'll see how it responds nonetheless.

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Comment By: Thomas Anders (tanders)
Date: 2006-03-15 15:31

Message:
Logged In: YES 
user_id=848638

Have you tried it on a 32-bit machine just to check whether
it's 64-bit related or not?

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You can respond by visiting: 
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