[Pkg-net-snmp-devel] Bug#505063: snmpd: truncating value to 32 bits when reading UCD-SNMP-MIB::ssCpu*

[Jorge Matias]

Package: snmpd
Version: 5.4.1~dfsg-10
Severity: important


When I get values from UCD-SNMP-MIB:ssCpu* tree the values returned are
wrong because the are being truncated by snmpd at "myhost". This is reported
by the snmpd in that machine. The message is like this:

Nov  9 00:30:02 myhost snmpd[7312]: truncating integer value > 32 bits 

For example one of the OID that generates this message is
UCD-SNMP-MIB::ssCpuRawIdle.0 . At my host the original value is
5136316310, but the value returned is 841345703 ( 5136316310 -
2^32 ).


$ snmpwalk -v2c -c public myhost .1.3.6.1.4.1.2021.11.53.0
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 841330503
jdsm at suporte:~$ snmpwalk -v2c -c public myhost .1.3.6.1.4.1.2021.11
UCD-SNMP-MIB::ssIndex.0 = INTEGER: 1
UCD-SNMP-MIB::ssErrorName.0 = STRING: systemStats
UCD-SNMP-MIB::ssSwapIn.0 = INTEGER: 0
UCD-SNMP-MIB::ssSwapOut.0 = INTEGER: 0
UCD-SNMP-MIB::ssIOSent.0 = INTEGER: 19
UCD-SNMP-MIB::ssIOReceive.0 = INTEGER: 0
UCD-SNMP-MIB::ssSysInterrupts.0 = INTEGER: 24170
UCD-SNMP-MIB::ssSysContext.0 = INTEGER: 1910
UCD-SNMP-MIB::ssCpuUser.0 = INTEGER: 0
UCD-SNMP-MIB::ssCpuSystem.0 = INTEGER: 0
UCD-SNMP-MIB::ssCpuIdle.0 = INTEGER: 66
UCD-SNMP-MIB::ssCpuRawUser.0 = Counter32: 13997285
UCD-SNMP-MIB::ssCpuRawNice.0 = Counter32: 1539831
UCD-SNMP-MIB::ssCpuRawSystem.0 = Counter32: 24513727
UCD-SNMP-MIB::ssCpuRawIdle.0 = Counter32: 841345703
UCD-SNMP-MIB::ssCpuRawWait.0 = Counter32: 1468478
UCD-SNMP-MIB::ssCpuRawKernel.0 = Counter32: 0
UCD-SNMP-MIB::ssCpuRawInterrupt.0 = Counter32: 20416932
UCD-SNMP-MIB::ssIORawSent.0 = Counter32: 1088889232
UCD-SNMP-MIB::ssIORawReceived.0 = Counter32: 171636256
UCD-SNMP-MIB::ssRawInterrupts.0 = Counter32: 3523954127
UCD-SNMP-MIB::ssRawContexts.0 = Counter32: 46727634
UCD-SNMP-MIB::ssCpuRawSoftIRQ.0 = Counter32: 749446321
UCD-SNMP-MIB::ssRawSwapIn.0 = Counter32: 0
UCD-SNMP-MIB::ssRawSwapOut.0 = Counter32: 0

# cat /proc/stat                            
cpu  13997297 1539831 24513778 5136316310 1468479 20416968 749448046 0
cpu0 6969590 877060 14837181 2829565394 278917 2553554 118798828 0
cpu1 7027707 662770 9676596 2306750915 1189562 17863413 630649218 0
intr 12114565056
ctxt 73061224657
btime 1196454014
processes 96806906
procs_running 1
procs_blocked 0


Regards,
--
Jorge Matias
CIIST - Centro de Informatica do
Instituto Superior Tecnico
Universidade Tecnica de Lisboa

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.23.9-1
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages snmpd depends on:
ii  adduser                    3.105         add and remove users and groups
ii  debconf                    1.5.17        Debian configuration management sy
ii  libc6                      2.7-5         GNU C Library: Shared libraries
ii  libsnmp15                  5.4.1~dfsg-10 SNMP (Simple Network Management Pr
ii  libwrap0                   7.6.dbs-8     Wietse Venema's TCP wrappers libra

snmpd recommends no packages.

-- debconf information:
* snmpd/upgradefrom521: