problem with net.if.in/out and linux 2.6 with grsecurity

[the_spy]

Hello,

I have some problems with net.if.in[eth0,bytes] and net.if.out[eth0,bytes].

My monitoring server is 1.8.4, all monitored servers are also 1.8.4 version.

After some research I found that only servers with grsecurity kernel have the problem "not supported item" for net.if.in/out .

If I launch the zabbx_agent command directly it's working.

server:~# zabbix_agent -c /etc/zabbix/zabbix_agentd.conf -t net.if.out[eth0,bytes]
net.if.out[] [u|47650602362]


Is there a known workaround for this ? Some permissions problem for zabbix to get values due to grsecurity kernel ?

Thanks

[Makihiko]

Any update on this? I've also figured out after many hours that its just the GRS servers that wont pickup these items values. As above, running zabbix_agent on the server shows the correct values.