Hello all,
The HOST-RESOURCES-MIB::hrSWInstalled support for FreeBSD pkg stops working
after so many queries and requires an snmpd process restart. I have been
observing this for quite some time and have only recently started to debug it.
The code in question is at:
agent/mibgroup/host/data_access/swinst_pkginfo.c
When debugging I see it throw either:
snmp_log( LOG_ERR, "SWInst: error initializing pkgng db\n" );
or
snmp_log( LOG_ERR, "SWInst: error opening pkgng db\n" );
neither of which should be true as nothing on the system changes. After seeing
one of these for a few times there are no further messages at which point I
believe it's having issues before it hits
/* if we are using FreeBSD's pkgng */
if (pkgng) {
if ((it = pkgdb_query(db, NULL, MATCH_ALL)) == NULL) {
snmp_log( LOG_ERR, "SWInst: error querying pkgng db\n" );
return 1;
}
It seems that if the system has fewer packages installed it can be queried more
times before it stops working. I was able to reproduce the issue every time at
19 queries on one test host.
Could anyone provide any possible insight or ideas on what could be the issue
here? I have compared the code with that used internally in FreeBSD pkg tool
and it's nearly identical. The only thing that I felt was missing was declaring
a readonly lock on the database but even adding that into the snmp code had no
effect...
Thanks
--
Mark Felder
ports-secteam & portmgr member
f...@freebsd.org
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