Processes hanging - Nagios 3rc1 on FreeBSD

[Oriol Capsada]

Hi Alex,

Alex French wrote:
> Hi,
> 
> Running rc1 on FreeBSD 5.4-RELEASE. Compiled both from ports and from
> original source (no difference in syptoms).
> 
> - Nagios starts fine, no errors, I can see all the service checks as
> "pending" through the CGI interface after startup.
> 
> - The service checks get run (I can see the temp output files in the
> check_results directory) but the status never gets updated, and the
> child process hangs around forever hogging memory & cpu.
> 
> I have tried modifying the reaper timer as per the FAQ, but it makes
> no difference (and anyway I only have the default sample localhost
> services configured so this shouldn't be the issue).
> 
> Any suggestions on how to debug this?

You can try to debug it with ktrace and kdump. With ktrace you'll get a 
kernel trace of the chosen PID and with kdump you'll be able to make the 
output readable.

In nagios 2 there was a bug with FreeBSD and threads, where sometimes 
the main nagios process got stuck in calls similar to:

   7484 nagios   CALL  kse_release(0xbfbf9c30)
   7484 nagios   RET   kse_release -1 errno 22 Invalid argument

Maybe the same problem is ocurring in version 3.

Regards,
Oriol.

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