panic: excl->share Starting stack trace... panic(ffffffff833b5a1c) at panic+0x1d0 sys/kern/subr_prf.c:229 witness_checkorder(ffff8000015a7878,1,0) at witness_checkorder+0x122c sys/kern/subr_witness.c:854 rw_do_enter_read(ffff8000015a7860,0) at rw_do_enter_read+0x99 sys/kern/kern_rwlock.c:355 in6_hasmulti(fffffd807194acf0,ffff8000015a7800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd807194acf0,ffff8000015a7800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd807194ac00,ffffffff83987338,0,0,ffff80002a1fe920,0) at ip6_output+0x13bd sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff8000015b2f00,83,0) at mld6_sendpkt+0x385 sys/netinet6/mld6.c:499 mld6_fasttimo() at mld6_fasttimo+0x16d mld6_checktimer sys/netinet6/mld6.c:395 [inline] mld6_fasttimo() at mld6_fasttimo+0x16d sys/netinet6/mld6.c:369 pffasttimo(ffffffff83a152a8) at pffasttimo+0x184 sys/kern/uipc_domain.c:-1 timeout_run(ffffffff8383b068,ffffffff83a152a8) at timeout_run+0x159 sys/kern/kern_timeout.c:698 softclock_thread_run(ffffffff8383b068) at softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 softclock_thread_mp(ffff8000ffffea60) at softclock_thread_mp+0x86 end trace frame: 0x0, count: 246 End of stack trace.