> Use command "vmstat -z|egrep 'ITEM|NetGraph'" and check FAILURES column.
> If you see non-zero values there, you need to increase netgraph memory limits
> net.graph.maxdata and net.graph.maxalloc using /boot/loader.conf.
Unfortunately, increasing net.graph.maxdata & net.graph.maxalloc didn't
solved EPERM problems on netgraph control sockets. It is still appearing
every few hours, but failure counters are zero:
ITEM SIZE LIMIT USED FREE REQUESTS
FAILURES
NetGraph items: 36, 65598, 0, 1404, 52978,
0
NetGraph data items: 36, 65598, 0, 780, 2876420,
0
I also tried to increase kern.ipc.nmbclusters to 262140, but after that,
mpd stopped accepting any connections - each failed with ENOBUFS.
What is the upper limit of kernel memory usage?
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