What version of net-snmp are you using? I looked at the code in 5.7.3 and
don't see how that leak could happen.
If your version of snmptrapd accepts the -X argument, try passing that to
avoid calling this code path altogether.
You could help debug futher by passing "-Dnetsnmp_sockaddr_in" and see what
messages you get; that should point to what code path to investigate
further.
Bill
On Tue, Jul 25, 2017 at 1:36 AM, Jeffry Copps <jeffrycopps1...@gmail.com>
wrote:
> Fenner,
>
> I tried adding the doNotRetainNotificationLogs=yes.
> The following is what I got from DebugDiag, Could you help me here.
>
> Function details
>
> Function msvcr120!malloc+5b
> Source Line
> Allocation type Heap allocation(s)
> Heap handle 0x00000000`00000000
> Allocation Count 130354 allocation(s)
> Allocation Size 11.58 MBytes
> Leak Probability 95%
>
>
> Call stack sample 1
>
> Address 0x00326300`35303700
> Allocation Time 04:15:14 since tracking started
> Allocation Size 5 Bytes
>
>
> Function
>
> Destination
>
> LeakTrack+20b07
> msvcr120!malloc+5b
> msvcr120!_strdup+28
> netsnmp_sockaddr_in2+150
> netsnmp_sockaddr_in2+134
> netsnmp_tcp_create_tstring+24
> netsnmp_tdomain_transport_full+508
> netsnmp_transport_open_client+18
> subagent_open_master_session+125
> agentx_reopen_session+82
> run_alarms+ce
> SnmpTrapdMain+c28
>
>
> Thanks,
> Jeffry copps
>
>
>
> jeffry
>
> On Thu, Jul 13, 2017 at 2:47 PM, Bill Fenner <fen...@gmail.com> wrote:
>
>> Are you sure it is a memory leak, or is it simply the
>> NOTIFICATION-LOG-MIB implementation?
>>
>> Does the memory usage still increase when you run with
>> "--doNotRetainNotificationLogs=yes" or the equivalent in snmptrapd.conf?
>>
>> Bill
>>
>>
>> On Tue, Jul 11, 2017 at 3:12 AM, Jeffry Copps <jeffrycopps1...@gmail.com>
>> wrote:
>>
>>> Hi NET-SNMP,
>>>
>>> I have recently starting working on SNMP Trapd daemon.
>>> And I was running a memory leak analysis on the application and came to
>>> know that there is a leak
>>> in the below call stack.
>>> Could someone help me here? Or have I understood it wrong?
>>>
>>> LeakTrack+20b07
>>> msvcr120!malloc+5b
>>> memdup+53
>>> netsnmp_set_row_column+138
>>> log_notification+68b
>>> notification_handler+8a
>>> snmp_input+45a
>>> snmp_vlog+1f2a
>>> sess_read+b99
>>> snmp_read+5f
>>> SnmpTrapdMain+c17
>>>
>>>
>>> Thanks in advance,
>>> Jeffry Copps, IN
>>>
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>>
>
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