[ net-snmp-Bugs-492310 ] NET-SNMPD will not return correct value

[<no...@so...>]

Bugs item #492310, was opened at 2001-12-12 21:00
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112694&aid=492310&group_id=12694

Category: None
Group: None
Status: Open
Resolution: None
Priority: 3
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: NET-SNMPD will not return correct value 

Initial Comment:
NET-SNMPD will not return correct value if
free/available/total of memory/size is greater than 2G
on Solaris 2.6 7 8.



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Comment By: Ben Stern (bstern)
Date: 2002-10-31 18:16

Message:
Logged In: YES 
user_id=146989

This is due to a bug in memory_solaris2.c in
agent/mibgroup/ucd-snmp, as far as I can tell.  [All of my
line numbers are relative to ucd-snmp 4.2.6 unpatched.]

I replaced the lines:
      ksp1 = kstat_lookup(kstat_fd, "unix", 0, "system_pages");
      kstat_read(kstat_fd, ksp1, 0);
      kn = kstat_data_lookup(ksp1, "physmem");

      long_ret =  kn->value.ul * (getpagesize() / 1024);
with
      long_ret = sysconf(_SC_PHYS_PAGES) * (getpagesize()/1024);

(starting at line 121) and probably more importantly,
replaced line 128 (the old line 128, which read:
      long_ret = (getTotalFree() - getFreeSwap()) *
(getpagesize() / 1024);
with:
      long_ret = sysconf(_SC_AVPHYS_PAGES) *
(getpagesize()/1024);

since the algorithm for finding free memory in
getTotalFree() uses the same counting process as
getFreeSwap(), so it subtracts x from x and always gets 0.

When I changed both of those portions, ucd_snmpd stopped
returning 0 for free memory, and also started return swap in
K rather than in 512 byte chunks.

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Comment By: Nobody/Anonymous (nobody)
Date: 2001-12-16 20:22

Message:
Logged In: NO 

The package I'm using is ucd-snmp-4.2.3.
The OID I'm trying to retrive is

1.3.6.1.4.1.2021.4.4.0
1.3.6.1.4.1.2021.4.3.0
1.3.6.1.4.1.2021.4.6.0






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Comment By: John Naylon (jbpn)
Date: 2001-12-14 08:29

Message:
Logged In: YES 
user_id=93926

Which version of the package are you using?  And which
specific OID are you retrieving to get these values?


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112694&aid=492310&group_id=12694