uvm_fault(0xffffffff83914cc8, 0xffff8000014e2000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND *261391 97867 0 0x10 0x4000000 1K syz-executor 431326 85858 77 0x100012 0x1 0 dhcpleased memcpy() at memcpy+0x19 rtm_msg1(14,ffff8000398331e8) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff8000014e1f00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2d000,ffff800039833600,ffff8000014e1f00) at in6_update_ifa+0x199a sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff800039833600,ffff800000b2d000) at in6_ioctl_change_ifaddr+0x64e sys/netinet6/in6.c:352 ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d sys/net/if.c:2454 sys_ioctl(ffff80003902af98,ffff8000398337e0,ffff800039833730) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff8000398337e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398337e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9e8e5f35e0, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffffff83914cc8, 0xffff8000014e2000, 0, 1) -> e ddb{1}> trace memcpy() at memcpy+0x19 rtm_msg1(14,ffff8000398331e8) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff8000014e1f00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2d000,ffff800039833600,ffff8000014e1f00) at in6_update_ifa+0x199a sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff800039833600,ffff800000b2d000) at in6_ioctl_change_ifaddr+0x64e sys/netinet6/in6.c:352 ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d sys/net/if.c:2454 sys_ioctl(ffff80003902af98,ffff8000398337e0,ffff800039833730) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff8000398337e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398337e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9e8e5f35e0, count: -9 ddb{1}> show registers rdi 0xfffffd8071633948 rsi 0xffff8000014e2000 rbp 0xffff800039833160 rbx 0xfffffd8076cf0600 rdx 0xf9 rcx 0xe rax 0x7d8070151948 r8 0x2 r9 0x8080808080808080 r10 0x7a9ad3c4fe413d0e r11 0xfffffd80716338c0 r12 0xf9 r13 0xf9 r14 0xc0 r15 0xfffffd8076cf0600 rip 0xffffffff8304ce59 memcpy+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff8000398330a8 ss 0x10 memcpy+0x19: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor) tid=261391 pid=97867 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003902b4b8,0xffffffff83904078 process=0xffff800038826720 user=0xffff80003982e000, vmspace=0xfffffd806abe9028 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 97867 465648 44829 0 2 0x10 syz-executor *97867 261391 44829 0 7 0x4000010 syz-executor 75480 462624 26717 0 3 0x80 nanoslp syz-executor 75480 253217 26717 0 3 0x4000080 tunread syz-executor 75480 250802 26717 0 3 0x4000080 fsleep syz-executor 39841 511511 17171 0 3 0x80 nanoslp syz-executor 39841 68385 17171 0 3 0x4000080 kqsel syz-executor 39841 522420 17171 0 3 0x4000080 fsleep syz-executor 26717 517856 16002 0 3 0x82 nanoslp syz-executor 22278 401596 1 0 3 0x100083 ttyin getty 38405 411709 0 0 3 0x14280 nfsidl nfsio 78239 494988 0 0 3 0x14280 nfsidl nfsio 86791 442917 0 0 3 0x14280 nfsidl nfsio 23566 365487 0 0 3 0x14280 nfsidl nfsio 88035 92036 0 0 3 0x14280 nfsidl nfsio 20928 511731 0 0 3 0x14280 nfsidl nfsio 33575 156616 0 0 3 0x14280 nfsidl nfsio 88461 373244 0 0 3 0x14280 nfsidl nfsio 62182 247637 0 0 3 0x14280 nfsidl nfsio 37201 199211 0 0 3 0x14280 nfsidl nfsio 33024 131856 0 0 3 0x14280 nfsidl nfsio 54136 341683 0 0 3 0x14280 nfsidl nfsio 81578 300778 0 0 3 0x14280 nfsidl nfsio 69430 341765 0 0 3 0x14280 nfsidl nfsio 77425 277752 0 0 3 0x14280 nfsidl nfsio 27935 479877 0 0 3 0x14280 nfsidl nfsio 92457 395609 0 0 3 0x14280 nfsidl nfsio 65252 160582 0 0 3 0x14280 nfsidl nfsio 78695 434746 0 0 3 0x14280 nfsidl nfsio 44596 265082 0 0 3 0x14280 nfsidl nfsio 60286 413406 0 0 3 0x14200 bored sosplice 44829 299845 16002 0 3 0x82 nanoslp syz-executor 7191 93764 16002 0 3 0x82 nanoslp syz-executor 17171 212318 16002 0 3 0x82 nanoslp syz-executor 99592 136388 16002 0 3 0x82 nanoslp syz-executor 16836 352566 16002 0 3 0x82 nanoslp syz-executor 69497 467865 16002 0 3 0x82 nanoslp syz-executor 6198 101639 16002 0 3 0x82 nanoslp syz-executor 16002 323400 98710 0 3 0x82 kqread syz-executor 98710 91256 26595 0 3 0x10008a sigsusp ksh 26595 179512 53244 0 3 0x98 kqread sshd-session 53244 110335 92173 0 3 0x92 kqread sshd-session 92173 386297 1 0 3 0x88 kqread sshd 26453 301395 69312 74 3 0x1100092 bpf pflogd 69312 69800 1 0 3 0x80 sbwait pflogd 98405 463144 66945 73 3 0x1100090 kqread syslogd 66945 276283 1 0 3 0x100082 sbwait syslogd 87606 104667 1 0 3 0x100080 kqread resolvd 85858 431326 2713 77 7 0x100013 dhcpleased 70610 442406 2713 77 3 0x100092 kqread dhcpleased 2713 266362 1 0 3 0x80 kqread dhcpleased 4990 79095 0 0 3 0x14200 bored smr 72847 252963 0 0 3 0x14200 pgzero zerothread 22382 147341 0 0 3 0x14200 aiodoned aiodoned 62956 55053 0 0 3 0x14200 syncer update 59718 382935 0 0 3 0x14200 cleaner cleaner 89117 53735 0 0 3 0x14200 reaper reaper 34115 242097 0 0 3 0x14200 pgdaemon pagedaemon 15928 272447 0 0 3 0x14200 bored viomb 46847 492981 0 0 3 0x40014200 acpi0 acpi0 90899 26123 0 0 3 0x40014200 idle1 93894 252930 0 0 3 0x14200 bored softnet7 93396 406873 0 0 3 0x14200 bored softnet6 76786 217226 0 0 3 0x14200 bored softnet5 72770 51838 0 0 3 0x14200 bored softnet4 49965 302461 0 0 3 0x14200 bored softnet3 75396 470623 0 0 3 0x14200 bored softnet2 25776 69515 0 0 3 0x14200 bored softnet1 72739 518476 0 0 3 0x14200 bored softnet0 31841 64441 0 0 3 0x14200 smrbar systqmp 83386 98559 0 0 3 0x14200 bored systq 22649 290727 0 0 3 0x14200 tmoslp softclockmp 96859 219999 0 0 3 0x40014200 tmoslp softclock 78834 46613 0 0 3 0x40014200 idle0 1 71038 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 97867 (syz-executor) thread 0xffff80003902af98 (261391) exclusive rwlock netlock r = 0 (0xffffffff8376c4a0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 in6_ioctl_change_ifaddr+0x10b sys/netinet6/in6.c:291 #3 ifioctl+0x156d pru_control sys/sys/protosw.h:352 [inline] #3 ifioctl+0x156d sys/net/if.c:2454 #4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff839c3688) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 ifioctl+0x47f if_unit sys/net/if.c:-1 [inline] #1 ifioctl+0x47f sys/net/if.c:2101 #2 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #4 Xsyscall+0x128 Process 31841 (systqmp) thread 0xffff8000ffffe000 (64441) shared rwlock systqmp r = 0 (0xffffffff837ed848) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 11060K 13676K 166960K 12494 0 pcb 21 14K 16K 166960K 188 0 rtable 183 7K 7K 166960K 350 0 pf 48 20K 81K 166960K 78 0 ifaddr 43 6K 7K 166960K 67 0 ifgroup 74 3K 3K 166960K 100 0 sysctl 3 1K 9K 166960K 10 0 counters 78 38K 38K 166960K 98 0 ioctlops 0 0K 4K 166960K 1571 0 iov 0 0K 18K 166960K 25 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1538 97K 97K 166960K 2063 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 28 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 675 0 sigio 0 0K 0K 166960K 12 0 proc 75 131K 180K 166960K 647 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 69 0 in_multi 77 5K 7K 166960K 129 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 428 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 259 160K 173K 166960K 7677 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 43 86K 101K 166960K 1790 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 25 0 NDP 17 0K 2K 166960K 43 0 temp 46 8636K 8890K 166960K 32458 0 kqueue 13 20K 28K 166960K 103 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 136 0 131 3 2 1 3 0 8 0 rtentry 176 117 0 44 5 0 5 5 0 8 0 unpcb 144 726 0 706 5 4 1 5 0 8 0 syncache 336 5 0 5 3 2 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 231 0 225 4 3 1 4 0 8 0 arp 128 12 0 3 1 0 1 1 0 8 0 inpcb 328 638 0 624 7 5 2 7 0 8 0 nd6 144 22 0 7 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 7 0 6 3 2 1 1 0 8 0 pppxif 1504 1 0 1 1 1 0 1 0 8 0 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 1 0 1 1 0 8 0 pfosfp 40 1429 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1429 0 714 21 0 21 21 0 8 0 pfstitem 24 44 0 8 1 0 1 1 0 8 0 pfstkey 128 48 0 12 2 0 2 2 0 8 0 pfstate 384 46 0 10 5 0 5 5 0 8 0 pfrule 1344 22 0 16 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 564 0 203 31 8 23 28 0 8 0 art_table 40 565 0 203 5 0 5 5 0 8 0 art_node 32 117 0 53 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 26 0 16 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2616 0 1100 95 0 95 95 0 8 0 ffsino 296 2616 0 1100 117 0 117 117 0 8 0 nchpl 144 3539 0 1835 64 0 64 64 0 8 0 uvmvnodes 80 3105 0 0 64 0 64 64 0 8 0 vnodes 216 3105 0 0 173 0 173 173 0 8 0 namei 1024 12043 0 12043 2 1 1 1 0 8 1 percpumem 16 64 0 10 1 0 1 1 0 8 0 kstatmem 264 56 0 16 4 1 3 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 14583 0 14583 6 2 4 4 1 8 4 plimitpl 152 298 0 281 1 0 1 1 0 8 0 sigapl 424 990 0 915 9 0 9 9 0 8 0 knotepl 120 313 0 0 10 0 10 10 0 8 0 kqueuepl 224 174 0 162 1 0 1 1 0 8 0 pipepl 344 149 0 122 3 0 3 3 0 8 0 fdescpl 528 946 0 914 3 0 3 3 0 8 0 filepl 160 5982 0 5745 22 9 13 20 0 8 2 lockfpl 104 878 0 875 3 1 2 2 0 8 1 lockfspl 48 233 0 230 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 46 0 29 1 0 1 1 0 8 0 ucredpl 104 1063 0 1048 1 0 1 1 0 8 0 zombiepl 144 920 0 915 1 0 1 1 0 8 0 processpl 1248 990 0 915 6 0 6 6 0 8 0 procpl 656 1943 0 1863 9 0 9 9 0 8 0 sosppl 168 5 0 5 1 1 0 1 0 8 0 sockpl 752 1513 0 1474 21 17 4 17 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 108 0 0 14 0 14 14 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 47 0 0 2 0 2 2 0 8 0 mbufpl 256 239 0 0 15 0 15 15 0 8 0 bufpl 280 5826 0 126 408 0 408 408 0 8 0 anonpl 32 9280 0 0 75 0 75 75 0 246 0 amapchunkpl 152 25417 0 24850 42 12 30 30 0 158 5 amappl16 200 3091 0 3055 16 11 5 15 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 126 0 114 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1614 0 1582 3 1 2 2 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 250 0 250 1 1 0 1 0 8 0 amappl8 136 29 0 26 1 0 1 1 0 8 0 amappl7 128 108 0 96 1 0 1 1 0 8 0 amappl6 120 187 0 184 1 0 1 1 0 8 0 amappl5 112 129 0 120 1 0 1 1 0 8 0 amappl4 104 309 0 289 1 0 1 1 0 8 0 amappl3 96 4815 0 4687 5 1 4 4 0 8 0 amappl2 88 671 0 606 2 0 2 2 0 8 0 amappl1 80 11086 0 10479 16 1 15 15 0 8 0 amappl 88 6889 0 6703 5 0 5 5 0 92 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 dma256 256 7 0 7 2 1 1 1 0 8 1 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 9 0 0 1 0 1 1 0 8 0 uaddrrnd 24 946 0 914 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 946 0 914 1 0 1 1 0 8 0 vmmpekpl 168 9366 0 9326 3 0 3 3 0 8 0 vmmpepl 168 65629 0 63544 104 4 100 100 0 357 2 vmsppl 488 945 0 914 6 1 5 5 0 8 0 rwobjpl 80 22796 0 18713 86 0 86 86 0 8 0 pdppl 4096 1900 0 1828 102 28 74 84 0 8 2 pvpl 32 16373 0 0 134 1 133 133 0 265 0 pmappl 256 945 0 914 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 283 0 44 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837dcff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 sys/dev/kcov.c:153 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff839c3480) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839c3480) at __mp_lock+0x192 sys/kern/kern_lock.c:165 ktrsysret(ffff8000ffff3200,48,0,ffff80002a2cf550) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffff3200,48,0,ffff80002a2cf550) at ktrsysret+0xde sys/kern/kern_ktrace.c:209 syscall(ffff80002a2cf600) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a2cf600) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:769 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76bf3c5a1850, count: 4 ddb{0}> trace x86_ipi_db(ffffffff837dcff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x19 sys/dev/kcov.c:153 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:847 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff839c3480) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839c3480) at __mp_lock+0x192 sys/kern/kern_lock.c:165 ktrsysret(ffff8000ffff3200,48,0,ffff80002a2cf550) at ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffff3200,48,0,ffff80002a2cf550) at ktrsysret+0xde sys/kern/kern_ktrace.c:209 syscall(ffff80002a2cf600) at syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a2cf600) at syscall+0xa50 sys/arch/amd64/amd64/trap.c:769 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x76bf3c5a1850, count: -11 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) memcpy() at memcpy+0x19 rtm_msg1(14,ffff8000398331e8) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff8000014e1f00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2d000,ffff800039833600,ffff8000014e1f00) at in6_update_ifa+0x199a sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff800039833600,ffff800000b2d000) at in6_ioctl_change_ifaddr+0x64e sys/netinet6/in6.c:352 ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d sys/net/if.c:2454 sys_ioctl(ffff80003902af98,ffff8000398337e0,ffff800039833730) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff8000398337e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398337e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9e8e5f35e0, count: 6 ddb{1}> trace memcpy() at memcpy+0x19 rtm_msg1(14,ffff8000398331e8) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff8000014e1f00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2d000,ffff800039833600,ffff8000014e1f00) at in6_update_ifa+0x199a sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff800039833600,ffff800000b2d000) at in6_ioctl_change_ifaddr+0x64e sys/netinet6/in6.c:352 ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff800010fe0ec0,8080691a,ffff800039833600,ffff80003902af98) at ifioctl+0x156d sys/net/if.c:2454 sys_ioctl(ffff80003902af98,ffff8000398337e0,ffff800039833730) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff8000398337e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398337e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa9e8e5f35e0, count: -9