kernel: protection fault trap, code=0 Stopped at in6_addmulti+0xf4: movzbl 0x1(%rax),%r15d ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace in6_addmulti(ffff80003c4613c0,ffff800001486800,ffff80003c461444) at in6_addmulti+0xf4 sys/netinet6/in6.c:1018 in6_joingroup(ffff800001486800,ffff80003c4613c0,ffff80003c461444) at in6_joingroup+0x6c sys/netinet6/in6.c:-1 in6_update_ifa(ffff800001486800,ffff80003c4614c0,0) at in6_update_ifa+0x182f sys/netinet6/in6.c:-1 in6_ifattach_linklocal(ffff800001486800,0) at in6_ifattach_linklocal+0x31a sys/netinet6/in6_ifattach.c:270 in6_ifattach(ffff800001486800) at in6_ifattach+0x2b4 sys/netinet6/in6_ifattach.c:394 ifnewlladdr(ffff800001486800) at ifnewlladdr+0x236 sys/net/if.c:3480 ifioctl(ffff800010fc4b90,8020691f,ffff80003c461710,ffff80002a296020) at ifioctl+0x2ca0 sys/net/if.c:2374 sys_ioctl(ffff80002a296020,ffff80003c4618f0,ffff80003c461840) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c4618f0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4618f0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89c0c4f9b0, count: -10 ddb{0}> show registers rdi 0x2 rsi 0 rbp 0xffff80003c461270 rbx 0xffff800001486800 rdx 0 rcx 0xffff80002a296020 rax 0xdead0036deadbeef r8 0x2 r9 0xfffffd806095ad30 r10 0x676de267145db6a3 r11 0x6c87b77d46ae01e3 r12 0xffff8000014a4f00 r13 0xffff80003c4613c0 r14 0xffff80003c461444 r15 0x3 rip 0xffffffff82c9bc94 in6_addmulti+0xf4 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff80003c4610f0 ss 0x10 in6_addmulti+0xf4: movzbl 0x1(%rax),%r15d ddb{0}> show proc PROC (syz-executor) tid=158950 pid=28366 tcnt=4 stat=onproc flags process=1000 proc=4080000 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a2979c0 scnt=3 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a296540,0xffff800034bf07e8 process=0xffff800034bfa6e8 user=0xffff80003c45c000, vmspace=0xfffffd806ef2a008 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63259 52715 72553 0 2 0 syz-executor 63259 413624 72553 0 3 0x4000080 fsleep syz-executor 56837 284400 42854 0 2 0 syz-executor 56837 417748 42854 0 3 0x4000080 fsleep syz-executor 57980 296043 98954 0 2 0x10 syz-executor 57980 398313 98954 0 3 0x4000090 fsleep syz-executor 54220 228652 75715 0 2 0 syz-executor 54220 24732 75715 0 3 0x4000080 kqsel syz-executor 54220 127024 75715 0 3 0x4000080 sysctllk syz-executor 23013 210445 42873 0 2 0 syz-executor 23013 348192 42873 0 3 0x4000080 sysctllk syz-executor 23013 500480 42873 0 2 0x4000000 syz-executor 28366 116213 52528 0 3 0x3000 suspend syz-executor 28366 256624 52528 0 3 0x4081000 smrbar syz-executor *28366 158950 52528 0 7 0x4081000 syz-executor 28366 386517 52528 0 2 0x4081000 syz-executor 6242 477332 61143 0 2 0 syz-executor 6242 413364 61143 0 2 0x4000000 syz-executor 97272 366167 91663 0 2 0 syz-executor 97272 169466 91663 0 3 0x4000080 ttyout syz-executor 97272 466253 91663 0 3 0x4000080 ttyout syz-executor 97272 229655 91663 0 2 0x4000000 syz-executor 13090 299566 1 0 3 0x82 nanoslp getty 24904 339710 0 0 3 0x14200 acct acct 33590 493746 6729 0 3 0x82 sbwait sshd-session 43661 406955 0 0 3 0x14280 nfsidl nfsio 25007 182361 0 0 3 0x14280 nfsidl nfsio 87084 127588 0 0 3 0x14280 nfsidl nfsio 61504 284945 0 0 3 0x14280 nfsidl nfsio 39159 125599 0 0 3 0x14280 nfsidl nfsio 90657 479863 0 0 3 0x14280 nfsidl nfsio 18731 54925 0 0 3 0x14280 nfsidl nfsio 71060 65466 0 0 3 0x14280 nfsidl nfsio 73120 171251 0 0 3 0x14280 nfsidl nfsio 4897 166994 0 0 3 0x14280 nfsidl nfsio 69001 229167 0 0 3 0x14280 nfsidl nfsio 1522 499803 0 0 3 0x14280 nfsidl nfsio 44961 252242 0 0 3 0x14280 nfsidl nfsio 744 230589 0 0 3 0x14280 nfsidl nfsio 39393 259807 0 0 3 0x14280 nfsidl nfsio 5458 245540 0 0 3 0x14280 nfsidl nfsio 20240 329947 0 0 3 0x14280 nfsidl nfsio 90337 335102 0 0 3 0x14280 nfsidl nfsio 66042 423047 0 0 3 0x14280 nfsidl nfsio 81469 130513 0 0 3 0x14280 nfsidl nfsio 28108 199386 0 0 3 0x14200 bored sosplice 72553 144807 48895 0 3 0x82 nanoslp syz-executor 42873 189070 48895 0 3 0x82 nanoslp syz-executor 42854 516775 48895 0 3 0x82 nanoslp syz-executor 75715 340042 48895 0 3 0x82 nanoslp syz-executor 98954 242738 48895 0 3 0x82 nanoslp syz-executor 91663 356411 48895 0 3 0x82 nanoslp syz-executor 61143 134924 48895 0 3 0x82 nanoslp syz-executor 52528 356442 48895 0 3 0x82 nanoslp syz-executor 48895 72462 83461 0 3 0x82 kqread syz-executor 83461 216502 98190 0 3 0x10008a sigsusp ksh 98190 463769 84050 0 3 0x98 kqread sshd-session 84050 190349 6729 0 3 0x92 kqread sshd-session 6729 467548 1 0 3 0x88 kqread sshd 78461 209572 94981 74 3 0x1100092 bpf pflogd 94981 247341 1 0 3 0x80 sbwait pflogd 33510 2332 31743 73 3 0x1100090 kqread syslogd 31743 471661 1 0 3 0x100082 sbwait syslogd 97256 157436 1 0 3 0x100080 kqread resolvd 20755 485399 92399 77 3 0x100012 netlock dhcpleased 94592 224185 92399 77 3 0x100092 kqread dhcpleased 92399 294713 1 0 3 0x80 kqread dhcpleased 28453 247429 0 0 3 0x14200 bored smr 77114 1502 0 0 2 0x14200 zerothread 38196 62610 0 0 3 0x14200 aiodoned aiodoned 98072 87804 0 0 3 0x14200 syncer update 24770 498564 0 0 3 0x14200 cleaner cleaner 63729 157078 0 0 3 0x14200 reaper reaper 88396 205756 0 0 3 0x14200 pgdaemon pagedaemon 73586 43340 0 0 3 0x14200 bored viomb 80989 244385 0 0 3 0x40014200 acpi0 acpi0 20800 399502 0 0 7 0x40014200 idle1 72974 235439 0 0 3 0x14200 bored softnet3 94189 252166 0 0 3 0x14200 bored softnet2 45275 375779 0 0 3 0x14200 bored softnet1 17824 347713 0 0 3 0x14200 bored softnet0 750 41477 0 0 3 0x14200 bored systqmp 43175 405225 0 0 3 0x14200 bored systq 67799 167996 0 0 3 0x14200 tmoslp softclockmp 14504 261145 0 0 3 0x40014200 netlock softclock 84385 211377 0 0 3 0x40014200 idle0 1 465742 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 28366 (syz-executor) thread 0xffff80002a296540 (256624) exclusive rwlock clonelk r = 0 (0xffffffff8381d5b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 if_clone_destroy+0x67 sys/net/if.c:-1 #3 ifioctl+0x5c5 sys/net/if.c:-1 #4 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #6 Xsyscall+0x128 Process 28366 (syz-executor) thread 0xffff80002a296020 (158950) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839e7540) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 malloc+0xe5 sys/kern/kern_malloc.c:174 #3 in6_update_ifa+0xf68 sys/netinet6/in6.c:640 #4 in6_ifattach_linklocal+0x31a sys/netinet6/in6_ifattach.c:270 #5 in6_ifattach+0x2b4 sys/netinet6/in6_ifattach.c:394 #6 ifnewlladdr+0x236 sys/net/if.c:3480 #7 ifioctl+0x2ca0 sys/net/if.c:2374 #8 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #10 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff8381d6a0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 ifioctl+0x1f66 sys/net/if.c:2356 #3 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #5 Xsyscall+0x128 Process 97272 (syz-executor) thread 0xffff80003c4639d0 (366167) exclusive rwlock vmmaplk r = 0 (0xfffffd8060550e50) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3064 #4 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:590 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #6 Xsyscall+0x128 Process 20755 (dhcpleased) thread 0xffff8000ffff2530 (485399) exclusive rwlock sysctllk r = 0 (0xffffffff838204c8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:189 #3 net_sysctl+0x5c2 sys/kern/uipc_domain.c:253 #4 sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #6 Xsyscall+0x128 Process 14504 (softclock) thread 0xffff8000ffffecd0 (261145) shared rwlock timeout r = 0 (0xffffffff838033a8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 timeout_run+0x115 sys/kern/kern_timeout.c:703 #2 softclock_thread_run+0xec sys/kern/kern_timeout.c:851 #3 softclock_thread+0x10a sys/kern/kern_timeout.c:867 #4 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10237 11044K 11709K 166960K 14528 0 pcb 18 16K 28K 166960K 513 0 rtable 179 8K 10K 166960K 568 0 pf 36 17K 19K 166960K 152 0 ifaddr 37 6K 7K 166960K 110 0 ifgroup 59 2K 3K 166960K 198 0 sysctl 4 1K 9K 166960K 14 0 counters 70 37K 38K 166960K 210 0 ioctlops 0 0K 4K 166960K 1935 0 iov 0 0K 16K 166960K 101 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1422 89K 90K 166960K 3309 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 32K 40K 166960K 39 0 VM map 2 1K 1K 166960K 2 0 sem 23 17K 17K 166960K 113 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 228K 166960K 1974 0 sigio 0 0K 0K 166960K 27 0 proc 72 91K 128K 166960K 716 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 459 0 in_multi 64 4K 7K 166960K 150 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 13 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 650 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 262 169K 186K 166960K 20060 0 UVM aobj 73 3K 4K 166960K 79 0 pinsyscall 45 90K 103K 166960K 3045 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 130 0 NDP 13 0K 2K 166960K 75 0 temp 75 8692K 8772K 166960K 71126 0 kqueue 14 22K 32K 166960K 372 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 224 0 221 3 2 1 3 0 8 0 rtentry 176 158 0 84 6 0 6 6 0 8 0 unpcb 144 1622 0 1433 16 9 7 7 0 8 0 syncache 336 12 0 12 7 7 0 1 0 8 0 tcpqe 32 3 0 3 3 3 0 1 0 8 0 tcpcb 736 551 0 507 13 9 4 7 0 8 0 arp 128 27 0 11 1 0 1 1 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 6 0 6 1 1 0 1 0 8 0 inpcb 328 1949 0 1898 29 24 5 7 0 8 0 nd6 144 33 0 15 1 0 1 1 0 8 0 pkpcb 40 44 0 44 6 6 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 53 0 53 6 5 1 1 0 8 1 pppxif 1504 7 0 7 4 4 0 1 0 8 0 pffrag 232 10 0 4 1 0 1 1 0 482 0 pffrnode 88 10 0 4 1 0 1 1 0 8 0 pffrent 40 86 0 80 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 97 0 61 1 0 1 1 0 8 0 pfstkey 128 97 0 61 2 0 2 2 0 8 0 pfstate 384 97 0 61 5 0 5 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 652 0 313 29 5 24 29 0 8 0 art_table 32 654 0 313 4 0 4 4 0 8 0 art_node 16 156 0 95 1 0 1 1 0 8 0 sysvmsgpl 40 15 0 7 3 2 1 1 0 8 0 semupl 112 3 0 3 2 2 0 1 0 8 0 semapl 112 106 0 85 1 0 1 1 0 8 0 shmpl 112 76 0 6 2 0 2 2 0 8 0 dirhash 1024 48 0 31 3 0 3 3 0 8 0 dino2pl 256 5152 0 3652 95 0 95 95 0 8 0 ffsino 288 5152 0 3652 109 0 109 109 0 8 0 nchpl 144 7917 0 6221 64 0 64 64 0 8 0 rtmask 32 11 0 11 5 5 0 1 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 30330 0 30330 5 4 1 2 0 8 1 percpumem 16 120 0 70 1 0 1 1 0 8 0 kstatmem 264 120 0 90 3 0 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 8 0 8 3 3 0 1 0 8 0 scxspl 216 23589 0 23589 13 12 1 8 1 8 1 plimitpl 152 382 0 365 1 0 1 1 0 8 0 sigapl 424 2250 0 2177 9 0 9 9 0 8 0 knotepl 120 580 0 0 17 0 17 17 0 8 0 kqueuepl 224 748 0 736 13 11 2 5 0 8 1 pipepl 336 312 0 285 9 6 3 6 0 8 0 fdescpl 520 2209 0 2176 3 0 3 3 0 8 0 filepl 160 15246 0 14755 42 21 21 21 0 8 0 lockfpl 104 653 0 651 2 1 1 2 0 8 0 lockfspl 48 221 0 219 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 64 0 47 1 0 1 1 0 8 0 ucredpl 104 2279 0 2265 1 0 1 1 0 8 0 zombiepl 144 3173 0 3172 1 0 1 1 0 8 0 processpl 1240 2250 0 2177 6 0 6 6 0 8 0 procpl 656 5444 0 5356 8 0 8 8 0 8 0 srpgc 96 8 0 8 3 2 1 1 0 8 1 sosppl 168 14 0 13 2 1 1 1 0 8 0 sockpl 728 3983 0 3730 64 41 23 23 0 8 0 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 1 14 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 84 0 0 3 0 3 3 0 8 0 mbufpl 256 1206 0 0 75 0 75 75 0 8 0 bufpl 280 5925 0 131 414 0 414 414 0 8 0 anonpl 32 8153 0 0 66 0 66 66 0 246 0 amapchunkpl 152 67238 0 66703 54 28 26 28 0 158 4 amappl16 200 5737 0 5700 59 52 7 15 0 8 4 amappl15 192 31 0 30 1 0 1 1 0 8 0 amappl14 184 131 0 118 1 0 1 1 0 8 0 amappl13 176 19 0 19 2 2 0 1 0 8 0 amappl12 168 2861 0 2828 4 1 3 3 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 12 0 12 2 2 0 1 0 8 0 amappl9 144 247 0 247 1 1 0 1 0 8 0 amappl8 136 41 0 38 1 0 1 1 0 8 0 amappl7 128 122 0 107 1 0 1 1 0 8 0 amappl6 120 192 0 187 1 0 1 1 0 8 0 amappl5 112 124 0 114 1 0 1 1 0 8 0 amappl4 104 348 0 328 1 0 1 1 0 8 0 amappl3 96 13875 0 13752 5 1 4 4 0 8 0 amappl2 88 698 0 628 2 0 2 2 0 8 0 amappl1 80 17257 0 16569 17 1 16 16 0 8 0 amappl 88 18997 0 18815 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 256 0 256 3 3 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 9 0 9 3 3 0 1 0 8 0 dma16 16 23 0 22 1 0 1 1 0 8 0 aobjpl 72 78 0 6 2 0 2 2 0 8 0 uaddrrnd 24 2209 0 2176 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2209 0 2176 1 0 1 1 0 8 0 vmmpekpl 168 19807 0 19771 3 0 3 3 0 8 0 vmmpepl 168 143161 0 140963 141 40 101 110 0 357 1 vmsppl 480 2208 0 2176 7 2 5 5 0 8 0 rwobjpl 72 43437 0 36384 133 2 131 131 0 8 1 pdppl 4096 4425 0 4352 121 48 73 85 0 8 0 pvpl 32 16982 0 0 138 1 137 137 0 265 0 pmappl 256 2208 0 2176 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 498 0 83 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace in6_addmulti(ffff80003c4613c0,ffff800001486800,ffff80003c461444) at in6_addmulti+0xf4 sys/netinet6/in6.c:1018 in6_joingroup(ffff800001486800,ffff80003c4613c0,ffff80003c461444) at in6_joingroup+0x6c sys/netinet6/in6.c:-1 in6_update_ifa(ffff800001486800,ffff80003c4614c0,0) at in6_update_ifa+0x182f sys/netinet6/in6.c:-1 in6_ifattach_linklocal(ffff800001486800,0) at in6_ifattach_linklocal+0x31a sys/netinet6/in6_ifattach.c:270 in6_ifattach(ffff800001486800) at in6_ifattach+0x2b4 sys/netinet6/in6_ifattach.c:394 ifnewlladdr(ffff800001486800) at ifnewlladdr+0x236 sys/net/if.c:3480 ifioctl(ffff800010fc4b90,8020691f,ffff80003c461710,ffff80002a296020) at ifioctl+0x2ca0 sys/net/if.c:2374 sys_ioctl(ffff80002a296020,ffff80003c4618f0,ffff80003c461840) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c4618f0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4618f0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x89c0c4f9b0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu_x86.c:1218 sched_idle(ffff8000299ddff0) at sched_idle+0x448 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5