[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)'
>
> Looking at that attached output, my best guess at what's opened on
> descriptor 4 is /proc/kmsg.

Could the problem be that /proc/kmsg is opened before the chroot, but
then read after the chroot?