I found some old messages in Russian relating to this problem with FB 1.5, but
still no real explanation of the problem.

What would cause the error ' ISC_kill: process 20185 couldn't deliver signal
16 to process 12040. permission denied'?

Tom

On Thu, 14 Jan 2010 10:33:07 Tom Munro Glass wrote:
> CentOS 5.4 - firebird-2.1.3.18185.0-2.el5 classic
>
> I recently had a problem on this machine and the database was no longer
> working. There is a daemon that is regularly connecting, updating and
> disconnecting from the database, and it also launches nbackup hourly. I
> found that the nbackup .delta file and the database both had timestamps of
> several days ago. firebird.log contained the following error with the same
> timestamp as the database and .delta file:
>
> ISC_kill: process 20185 couldn't deliver signal 16 to process 12040.
> permission denied
>
> I stopped xinetd, killed all firebird processes, restarted xinetd, ran
> nbackup with the -N option to unlock the database. Having validated the
> database with gfix, I restarted the application and it's working again.
>
> Can someone please explain what the ISC_kill error is all about, and what I
> can do to prevent it from happening again?
>
> Tom Munro Glass
>
>
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