Hi All,
I have a snmp library built on (RedHat 6.4) with net-snmp-devel-5.5-50 and
integrated with snmpd, works perfectly and by doing snmpwalks I can see my
tables and values.
Now I need to support the same library on Centos7 (net-snmp-libs-5.7.2-24) and
I just provide the same library to the box and I got a segfault on the
container_free internal function.
Here is some output:
On the debug of the snmpd
internal:ratStatusCountersTable:_cache_free: called
trace: _container_free(): ../src/ratStatusCountersTable_interface.c, 750:
internal:ratStatusCountersTable:_container_free: called
trace: ratStatusCountersTable_container_free():
../src/ratStatusCountersTable_data_access.c, 344:
verbose:ratStatusCountersTable:ratStatusCountersTable_container_free: called
The gdb stack
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007f7ff2c21a0a in _ba_for_each () from /lib64/libnetsnmp.so.31
#2 0x00007f7fe5a2960a in CONTAINER_CLEAR (f=0x7f7fe5a2a1b0
<_container_item_free>, c=0x0, x=0x7f7ff40af490) at
/usr/include/net-snmp/library/container.h:472
#3 _container_free (container=<optimized out>) at
../src/ratPerformanceCountersLastValuesTable_interface.c:762
#4 0x00007f7ff3566aae in release_cached_resources () from
/lib64/libnetsnmpagent.so.31
#5 0x00007f7ff2bfac3c in run_alarms () from /lib64/libnetsnmp.so.31
I have checked that the code generated by mib2c is similar on both operating
systems.
I built the library on Centos7, and that did worked without problems. Do I
really need to recompile the library for each platform? Is there a way to have
just one library that works on snmpd for both versions?
Any thoughts?
Thanks and regards,
Luis
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