nagios-process with 100% CPU after update to Nagios-2.10

[Bernd Kuhlen]

Hi list

Since I've updated my system to Nagios-2.10 I'm experiencing a strange problem. Wenn I start the daemon, everything looks fine:

  PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
 3187 nagios      4  20    0 11728K  7104K kserel 0   6:30  0.00% nagios
  743 nagios      1  96    0  4936K  1324K select 0   0:03  0.00% nsca
  758 nagios      1  96    0  3652K  1032K select 0   0:02  0.00% nrpe2


but at random time suddenly a new nagios process occurs consuming 100% CPU. The Process state of this malfunctioning process ist RUN oder CPU1. 

I've started changing defaults of max_concurrent_checks or service_repeater_frequency (former value was the default of 0/10 meaning that Nagios can fork as many proccesses as needed.) 

I've already figured out, that it's not a special service-check that causes the problem. The problem happens with random checks.

I'm running Nagios on FreeBSD6.3 amd64, which I've upgraded also. So maybe there's a problem with the OS rather than Nagios itself? Unfortunately I haven't found any hint in any syslog-files so far.

Any ideas?

best regards,
Bernd 

- Bernd Kuhlen (bkuhlen)

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