On Friday 09 September 2005 19:19, Max Laier wrote:
> On Friday 09 September 2005 15:05, Dominic Marks wrote:
> > Dominic Marks wrote:
> > > Hello,
> > >
> > > I am setting up a redundant firewall setup for our company, the systems
> > > are identically configured Dell servers running FreeBSD 6.0-BETA4.
> > > Software being used is pf, carp, pfsync and altq.
> > >
> > > When I attempt to configure the pfsync0 interface the systems panic.
> > > The systems currently have HTT enabled, I've googled but I didn't find
> > > anything to suggest pfsync was not SMP/HTT friendly. Could this be a
> > > configuration problem?
> > >
> > > interface:
> > >
> > > # ifconfig em2
> > > em2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > >         options=b<RXCSUM,TXCSUM,VLAN_MTU>
> > >         inet 172.16.254.2 netmask 0xffffff00 broadcast 172.16.254.255
> > >         ether 00:04:23:bd:7a:ef
> > >         media: Ethernet autoselect (100baseTX <full-duplex>)
> > >         status: active
> > >
> > > command:
> > >
> > > # ifconfig pfsync0 syncdev em2 syncpeer 172.16.254.1
> >
> > Following a little more testing:
> >
> > If I don't specify a syncpeer I don't get the panic.
>
> Thanks for the dump.  Seems like we were leaking a lock from pfsyncioctl().
> Can you please try this patch and report back.  Thanks in advance.

And the patch ... sorry.

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Index: if_pfsync.c
===================================================================
RCS file: /usr/store/mlaier/fcvs/src/sys/contrib/pf/net/if_pfsync.c,v
retrieving revision 1.19.2.2
diff -u -p -r1.19.2.2 if_pfsync.c
--- if_pfsync.c	25 Aug 2005 05:01:03 -0000	1.19.2.2
+++ if_pfsync.c	9 Sep 2005 17:16:39 -0000
@@ -1128,14 +1128,14 @@ pfsyncioctl(struct ifnet *ifp, u_long cm
 			imo->imo_multicast_ifp = sc->sc_sync_ifp;
 			imo->imo_multicast_ttl = PFSYNC_DFLTTL;
 			imo->imo_multicast_loop = 0;
+#ifdef __FreeBSD__
+			PF_LOCK();
+#endif
 		}
 
 		if (sc->sc_sync_ifp ||
 		    sc->sc_sendaddr.s_addr != INADDR_PFSYNC_GROUP) {
 			/* Request a full state table update. */
-#ifdef __FreeBSD__
-			PF_LOCK();
-#endif
 			sc->sc_ureq_sent = time_uptime;
 #if NCARP > 0
 			if (pfsync_sync_ok)

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