panic: excl->share Starting stack trace... panic(ffffffff833b5a1c) at panic+0x1d0 sys/kern/subr_prf.c:229 witness_checkorder(ffff800001596078,1,0) at witness_checkorder+0x122c sys/kern/subr_witness.c:854 rw_do_enter_read(ffff800001596060,0) at rw_do_enter_read+0x99 sys/kern/kern_rwlock.c:355 in6_hasmulti(fffffd806eb83ef0,ffff800001596000) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd806eb83ef0,ffff800001596000) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd806eb83e00,ffffffff83987338,0,0,ffff80003c4330b0,0) at ip6_output+0x13bd sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff8000015ac800,83,0) at mld6_sendpkt+0x385 sys/netinet6/mld6.c:499 mld6_start_listening(ffff8000015ac800,ffff800001596000) at mld6_start_listening+0xe7 sys/netinet6/mld6.c:139 in6_addmulti(ffff80003c433458,ffff800001596000,ffff80003c4334cc) at in6_addmulti+0x3d7 sys/netinet6/in6.c:1084 in6_joingroup(ffff800001596000,ffff80003c433458,ffff80003c4334cc) at in6_joingroup+0x6c sys/netinet6/in6.c:-1 in6_update_ifa(ffff800001596000,ffff80003c4336a0,0) at in6_update_ifa+0x1a86 sys/netinet6/in6.c:-1 in6_ioctl_change_ifaddr(8080691a,ffff80003c4336a0,ffff800001596000) at in6_ioctl_change_ifaddr+0x64e sys/netinet6/in6.c:352 ifioctl(ffff800001608368,8080691a,ffff80003c4336a0,ffff80003c4174f8) at ifioctl+0x1714 pru_control sys/sys/protosw.h:353 [inline] ifioctl(ffff800001608368,8080691a,ffff80003c4336a0,ffff80003c4174f8) at ifioctl+0x1714 sys/net/if.c:2554 sys_ioctl(ffff80003c4174f8,ffff80003c433880,ffff80003c4337d0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c433880) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c433880) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb4c72f731c0, count: 242 End of stack trace.