Fw: Table Iterator Crashes in free_data_context

[Ian C <mc...@ya...>]

 I've added some cout's for debug (// free() commented out in favor of a cout). 

If _get_next_ has a non-NULL entry it will cout entry's two strings ('A1' is the idx)

Here's the output (thanks for the help):

NET-SNMP version 5.9.rc2 AgentX subagent connected
_get_first_()
populate()
populate just malloc'ed 908f360
_get_next_() A1 {"data":[{"hostname":"B1","remote":"10.128.102.11","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"81.570","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.102.12","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"80.283","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.103.11","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"81.192","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.103.12","refid":".GPS.","st":"1","t":"u","when":"21d","poll":"64","reach":"0","delay":"0.977","offset":"0.077","jitter":"0.000","updated":"2020-Aug-20 16:45:47"}]}
_get_next_() entry is NULL
freeTableEntry() free'ing 908f360
freeTableEntry() free'ing 908f360
_get_first_()
populate()
populate just malloc'ed 908ea80
_get_next_() A1 {"data":[{"hostname":"B1","remote":"10.128.102.11","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"81.570","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.102.12","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"80.283","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.103.11","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"81.192","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.103.12","refid":".GPS.","st":"1","t":"u","when":"21d","poll":"64","reach":"0","delay":"0.977","offset":"0.077","jitter":"0.000","updated":"2020-Aug-20 16:45:47"}]}
freeTableEntry() free'ing 908ea80
freeTableEntry() free'ing 908ea80
_get_next_() entry is NULL
_get_first_()
populate()
populate just malloc'ed 908e630
_get_next_() A1 {"data":[{"hostname":"B1","remote":"10.128.102.11","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"81.570","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.102.12","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"80.283","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.103.11","refid":".GPS.","st":"1","t":"u","when":"7d","poll":"64","reach":"0","delay":"0.977","offset":"81.192","jitter":"0.000","updated":"2020-Aug-20 16:45:47"},{"hostname":"B1","remote":"10.128.103.12","refid":".GPS.","st":"1","t":"u","when":"21d","poll":"64","reach":"0","delay":"0.977","offset":"0.077","jitter":"0.000","updated":"2020-Aug-20 16:45:47"}]}
_get_next_() entry is NULL
freeTableEntry() free'ing 908e630


   ----- Forwarded Message ----- From: Wes Hardaker <har...@us...>To: Ian C via Net-snmp-coders <net...@li...>Cc: Ian C <mc...@ya...>Sent: Wednesday, August 26, 2020, 10:13:09 a.m. EDTSubject: Re: Table Iterator Crashes in free_data_context
 Ian C via Net-snmp-coders <net...@li...>
writes:

> I'm still having a crash issue with my table agent, I can't figure out a
> solution, hoping the list members could help. In a nutshell I want to read a
> QNX pps object (file) each time (no caching) it is queried (snmpwalk). The data
> gets read and returned but a crash happens on the free (datactx).

I assume if you comment out that free it will gain in memory usage?
-- 
Wes Hardaker
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