[syslog-ng] I/O error occurred while reading; fd='4',error='Operation not permitted (1)'

[Matt Miller]

> > running in a jail via the "-C" option, but ... syslog-ng[19522]:
> > I/O error occurred while reading; fd='4', error='Operation not
> >   permitted (1)'
>
> fd 4 is /proc/kmsg ... Try changing the path to
> "/var/local/chroot/syslogng/proc/kmsg"

Done.  I changed my "source" directive in my conf file to include:

file("/var/local/chroot/syslogng/proc/kmsg" log_prefix("kernel: "));

but I'm still getting the same problem on startup.