Author: hrs
Date: Tue Jul 2 16:39:12 2013
New Revision: 252510
URL: http://svnweb.freebsd.org/changeset/base/252510
Log:
Fix a panic when leaving MC group in a kernel with VIMAGE enabled.
in_leavegroup() is called from an asynchronous task, and
igmp_change_state() requires that curvnet is set by the caller.
Modified:
head/sys/netinet/in_mcast.c
Modified: head/sys/netinet/in_mcast.c
==============================================================================
--- head/sys/netinet/in_mcast.c Tue Jul 2 14:54:18 2013 (r252509)
+++ head/sys/netinet/in_mcast.c Tue Jul 2 16:39:12 2013 (r252510)
@@ -1236,7 +1236,9 @@ in_leavegroup_locked(struct in_multi *in
KASSERT(error == 0, ("%s: failed to merge inm state", __func__));
CTR1(KTR_IGMPV3, "%s: doing igmp downcall", __func__);
+ CURVNET_SET(inm->inm_ifp->if_vnet);
error = igmp_change_state(inm);
+ CURVNET_RESTORE();
if (error)
CTR1(KTR_IGMPV3, "%s: failed igmp downcall", __func__);
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