Re: kern/47881 (kernel diagnostic assertion "c->c_cpu->cc_lwp == curlwp || c->c_cpu->cc_active != c" failed)

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

I've encountered the same panic sometimes.

The following fix (maybe band-aid) works for me.

Thanks,

  ozaki-r

diff --git a/sys/netinet6/mld6.c b/sys/netinet6/mld6.c

index 33b8d89..1c2e0b8 100644

--- a/sys/netinet6/mld6.c

+++ b/sys/netinet6/mld6.c

@@ -741,6 +741,7 @@ in6_delmulti(struct in6_multi *in6m)

                 */

                sockaddr_in6_init(&sin6, &in6m->in6m_addr, 0, 0, 0);

                if_mcast_op(in6m->in6m_ifp, SIOCDELMULTI, sin6tosa(&sin6));

+               callout_halt(&in6m->in6m_timer_ch, softnet_lock);

                callout_destroy(&in6m->in6m_timer_ch);

                free(in6m, M_IPMADDR);

        }