snmpd crashes daily on SLES10SP4 when receiving SIGHUP from logrotate

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Environment

SUSE Linux Enterprise Server 10 Service Pack 4

Situation

net-snmp up to version 5.3.0.1-25.39.1
3rd party snmp agents

snmpd crashes daily with segmentation fault on SLES10SP4 installations.
Messages similar to the following will be available in /var/log/messages:

Jun 7 19:15:14 linux kernel: snmpd[3102]: segfault at 00002ba10a770b17 rip 00002ba10a770b17 rsp 00007fffd8c0cc38 error 14
Jun 8 19:15:18 linux kernel: snmpd[1491]: segfault at 00002afee38aeb17 rip 00002afee38aeb17 rsp 00007ffffce3b138 error 14
Jun 11 19:15:18 linux kernel: snmpd[9882]: segfault at 00002b4e6b786b17 rip 00002b4e6b786b17 rsp 00007fff712fffa8 error 14

One prerequisite for this issue to occur is the presence of 3rd party snmp agents, e.g. hp-snmp-agents.

Resolution

Edit /etc/logrotate.d/net-snmp and change the line

/etc/init.d/snmpd reload ||:

to

/etc/init.d/snmpd try-restart ||:

Cause

snmpd crashes while receiving a SIGHUP from logrotate to reread its configuration settings.

Disclaimer

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