Description of problem:
This is a problem which appeared in RHEL4 after un upgrade from RHEL3.

"service snmpd restart" always reports failed on stopping the service and ok on 
starting. There are no other errors reported. After that "ps -A | egrep snmp" 
shows that snmpd is no longer running. 

With lm_sensors started "snmpd -f -Le" reports "segmentation fault". Stopping 
lm_sensors allows snmpd to run without the segmentation fault. I need them both 
running so that I can produce mrtg reports.

Running strace on the segmentation fault shows an access to /usr/lib/rpm/i386-
linux/macros. Perhaps this should be /usr/lib/rpm/athlon-linux/macros as is the 
case on another athlon pc running FC4 with lm_sensors and net-snmp-5.2.1-12 
with no problem.

Version-Release number of selected component (if applicable):
net-snmp-5.1.2-11

How reproducible:
Always

Steps to Reproduce:
1.lm_sensors and net-snmp are started at boot
2."service snmpd restart" repeatedly shows failed on stopping; ok on starting 
service
3."ps -A | egrep snmp" shows that snmpd is not running
  
Actual results:
snmpd fails to start

Expected results:
snmpd should be running

Additional info:
lm_sensors-2.8.7-2

/etc/sysconfig/lm_sensors
MODULE_0=i2c-sis630
MODULE_1=i2c-isa
MODULE_2=eeprom
MODULE_3=it87

sensor information is at /sys/devices/platform/i2c-1/1-0290

lm_sensors starts as S26 before snmpd at S50.

If I start snmpd and only then start lm_sensors, snmpd seems to keep running.  
That is an observation, not a solution to the problem.