Configure UMA warnings for the following zones:

- unp_zone: kern.ipc.maxsockets limit reached
- socket_zone: kern.ipc.maxsockets limit reached
- zone_mbuf: kern.ipc.nmbufs limit reached
- zone_clust: kern.ipc.nmbclusters limit reached
- zone_jumbop: kern.ipc.nmbjumbop limit reached
- zone_jumbo9: kern.ipc.nmbjumbo9 limit reached
- zone_jumbo16: kern.ipc.nmbjumbo16 limit reached

Note that those warnings are printed not often than every five minutes and can
be globally turned off by setting sysctl/tunable vm.zone_warnings to 0.

Discussed on:	arch
Obtained from:	WHEEL Systems
MFC after:	2 weeks

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c
index c60b177..c732c70 100644
--- a/sys/kern/uipc_usrreq.c
+++ b/sys/kern/uipc_usrreq.c
@@ -1778,6 +1778,7 @@ unp_init(void)
 	if (unp_zone == NULL)
 		panic("unp_init");
 	uma_zone_set_max(unp_zone, maxsockets);
+	uma_zone_set_warning(unp_zone, "kern.ipc.maxsockets limit reached");
 	EVENTHANDLER_REGISTER(maxsockets_change, unp_zone_change,
 	    NULL, EVENTHANDLER_PRI_ANY);
 	LIST_INIT(&unp_dhead);