uvm_fault(0xffffffff83961d70, 0xffff80000152d000, 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 *478880 9518 0 0 0x4000000 1K syz-executor 304946 46979 0 0 0 0 syz-executor memcpy() at memcpy+0x19 rtm_msg1(14,ffff80003c43d048) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff80000152cf00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2c000,ffff80003c43d460,ffff80000152cf00) at in6_update_ifa+0x1752 sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff80003c43d460,ffff800000b2c000) at in6_ioctl_change_ifaddr+0x621 sys/netinet6/in6.c:352 ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 sys/net/if.c:2455 sys_ioctl(ffff800038418548,ffff80003c43d640,ffff80003c43d590) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c43d640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43d640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4417113d10, 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(0xffffffff83961d70, 0xffff80000152d000, 0, 1) -> e ddb{1}> trace memcpy() at memcpy+0x19 rtm_msg1(14,ffff80003c43d048) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff80000152cf00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2c000,ffff80003c43d460,ffff80000152cf00) at in6_update_ifa+0x1752 sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff80003c43d460,ffff800000b2c000) at in6_ioctl_change_ifaddr+0x621 sys/netinet6/in6.c:352 ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 sys/net/if.c:2455 sys_ioctl(ffff800038418548,ffff80003c43d640,ffff80003c43d590) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c43d640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43d640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4417113d10, count: -9 ddb{1}> show registers rdi 0xfffffd806c046948 rsi 0xffff80000152d000 rbp 0xffff80003c43cfc0 rbx 0 rdx 0xf9 rcx 0xe rax 0x7d806ab19948 r8 0x2 r9 0x1 r10 0x62acda2300d2f935 r11 0xfffffd806c0468c0 r12 0xf9 r13 0xfffffd80600de500 r14 0xf9 r15 0xc0 rip 0xffffffff832060c9 memcpy+0x19 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80003c43cf08 ss 0 memcpy+0x19: repe movsq (%rsi),%es:(%rdi) ddb{1}> show proc PROC (syz-executor) tid=478880 pid=9518 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000384194a8,0xffffffff839c4fa0 process=0xffff800038408028 user=0xffff80003c438000, vmspace=0xfffffd806c10b210 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 9518 227631 86704 0 2 0 syz-executor * 9518 478880 86704 0 7 0x4000000 syz-executor 46979 304946 3149 0 7 0 syz-executor 46979 22788 3149 0 3 0x4000000 biowait syz-executor 21131 347528 80747 0 2 0 syz-executor 21131 501786 80747 0 3 0x4000080 fsleep syz-executor 14019 154365 81681 0 2 0 syz-executor 14019 150509 81681 0 3 0x4000080 fsleep syz-executor 22821 369582 46313 0 2 0 syz-executor 22821 425778 46313 0 3 0x4000080 fsleep syz-executor 77791 479017 34846 0 3 0x80 nanoslp syz-executor 77791 404385 34846 0 3 0x4000080 kqsel syz-executor 77791 158264 34846 0 3 0x4000080 fsleep syz-executor 81681 353412 20449 0 3 0x82 nanoslp syz-executor 34846 435057 20449 0 3 0x82 nanoslp syz-executor 46313 73137 20449 0 3 0x82 nanoslp syz-executor 11006 449318 0 0 3 0x14200 acct acct 31133 519789 1 0 3 0x100083 ttyin getty 33246 466867 20449 0 3 0x82 nanoslp syz-executor 80747 289279 20449 0 3 0x82 nanoslp syz-executor 76144 124228 0 0 3 0x14200 bored sosplice 84654 451916 20449 0 2 0x10000003 syz-executor 3149 307815 20449 0 2 0x3 syz-executor 86704 487580 20449 0 3 0x82 nanoslp syz-executor 20449 293719 40240 0 3 0x82 kqread syz-executor 40240 515194 46516 0 3 0x10008a sigsusp ksh 46516 492087 94281 0 3 0x98 kqread sshd-session 94281 481113 33569 0 3 0x92 kqread sshd-session 33569 63124 1 0 3 0x88 kqread sshd 23175 309920 59175 74 3 0x1100092 bpf pflogd 59175 97087 1 0 3 0x80 sbwait pflogd 77034 73878 13881 73 3 0x1100090 kqread syslogd 13881 289331 1 0 3 0x100082 sbwait syslogd 29115 433327 1 0 3 0x100080 kqread resolvd 67650 77755 56582 77 2 0x100092 dhcpleased 74899 152680 56582 77 3 0x100092 kqread dhcpleased 56582 281230 1 0 3 0x80 kqread dhcpleased 58743 505190 0 0 3 0x14200 bored smr 86342 466336 0 0 2 0x14200 zerothread 28140 409280 0 0 3 0x14200 aiodoned aiodoned 40590 440394 0 0 3 0x14200 syncer update 14439 469235 0 0 3 0x14200 cleaner cleaner 19774 172720 0 0 3 0x14200 reaper reaper 79905 274490 0 0 3 0x14200 pgdaemon pagedaemon 12519 276158 0 0 3 0x14200 bored viomb 16211 34947 0 0 3 0x40014200 acpi0 acpi0 59217 84223 0 0 3 0x40014200 idle1 23160 315573 0 0 3 0x14200 bored softnet3 20333 210106 0 0 3 0x14200 bored softnet2 42182 28804 0 0 3 0x14200 bored softnet1 2989 435381 0 0 3 0x14200 bored softnet0 9241 353087 0 0 3 0x14200 bored systqmp 78988 413795 0 0 3 0x14200 bored systq 45592 455169 0 0 3 0x14200 tmoslp softclockmp 48898 403748 0 0 3 0x40014200 tmoslp softclock 56030 164476 0 0 3 0x40014200 idle0 1 251002 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 9518 (syz-executor) thread 0xffff800038418548 (478880) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff83903458) #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 counters_read+0x1d4 sys/kern/subr_percpu.c:174 #4 if_getdata+0x16f sys/net/if.c:2833 #5 rtm_ifchg+0xfb sys/net/rtsock.c:1811 #6 if_up+0x202 if_linkstate sys/net/if.c:1799 [inline] #6 if_up+0x202 sys/net/if.c:1767 #7 loioctl+0x158 sys/net/if_loop.c:291 #8 in6_ifinit+0x1ed sys/netinet6/in6.c:969 #9 in6_update_ifa+0x163b sys/netinet6/in6.c:722 #10 in6_ioctl_change_ifaddr+0x621 sys/netinet6/in6.c:352 #11 ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] #11 ifioctl+0x1571 sys/net/if.c:2455 #12 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #13 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:742 #14 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff8389b480) #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 in6_ioctl_change_ifaddr+0x10a sys/netinet6/in6.c:-1 #3 ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] #3 ifioctl+0x1571 sys/net/if.c:2455 #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:742 #6 Xsyscall+0x128 Process 46979 (syz-executor) thread 0xffff8000384194a8 (22788) exclusive rrwlock inode r = 0 (0xfffffd8073280f48) #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 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:742 #9 Xsyscall+0x128 Process 14019 (syz-executor) thread 0xffff80002a2974a0 (154365) exclusive rwlock vmmaplk r = 0 (0xfffffd806c10b8b0) #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 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1918 #4 uvm_fault_check+0x8a5 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x8a5 sys/uvm/uvm_fault.c:784 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #7 usertrap+0x3e3 sys/arch/amd64/amd64/trap.c:599 #8 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 11177K 11517K 166960K 14172 0 pcb 20 12K 12K 166960K 401 0 rtable 226 13K 14K 166960K 853 0 pf 34 17K 67485K 166960K 244 0 ifaddr 38 7K 7K 166960K 189 0 ifgroup 55 2K 2K 166960K 319 0 sysctl 4 1K 9K 166960K 18 0 counters 68 36K 37K 166960K 354 0 ioctlops 0 0K 4K 166960K 1830 0 iov 0 0K 20K 166960K 80 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1329 84K 84K 166960K 3037 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 28 16K 16K 166960K 50 0 dirhash 12 2K 2K 166960K 63 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 106K 166960K 4546 0 sigio 0 0K 0K 166960K 29 0 proc 72 91K 128K 166960K 924 0 subproc 72 4K 4K 166960K 127 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 283 0 in_multi 77 5K 7K 166960K 302 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 35 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 618 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 245 169K 182K 166960K 38094 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 42 84K 104K 166960K 5795 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 124 0 NDP 12 0K 2K 166960K 125 0 temp 83 8688K 8814K 166960K 101555 0 kqueue 13 20K 28K 166960K 414 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 120 148 0 145 1 0 1 1 0 8 0 rtentry 176 269 0 186 6 0 6 6 0 8 1 unpcb 144 799 0 778 3 1 2 2 0 8 1 syncache 336 8 0 8 3 2 1 1 0 8 1 tcpcb 736 455 0 451 1 0 1 1 0 8 0 arp 128 43 0 29 1 0 1 1 0 8 0 inpcb 328 1725 0 1710 4 1 3 3 0 8 1 nd6 144 45 0 27 2 1 1 2 0 8 0 pkpcb 40 24 0 24 5 5 0 1 0 8 0 kcovpl 48 14 0 6 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 2 0 1 0 8 0 ppxss 1192 106 0 106 1 1 0 1 0 8 0 pppxif 1504 20 0 20 3 3 0 1 0 8 0 pffrag 232 16 0 11 1 0 1 1 0 482 0 pffrnode 88 15 0 10 1 0 1 1 0 8 0 pffrent 40 36 0 31 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 183 0 64 1 0 1 1 0 8 0 pfstkey 128 183 0 64 4 0 4 4 0 8 0 pfstate 384 183 0 64 13 0 13 13 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 8 0 8 4 3 1 1 0 8 1 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 1096 0 729 34 11 23 32 0 8 0 art_table 32 1101 0 729 5 0 5 5 0 8 0 art_node 16 256 0 184 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 8 2 1 1 1 0 8 0 semupl 112 4 0 4 3 3 0 1 0 8 0 semapl 112 40 0 14 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 53 0 36 3 0 3 3 0 8 0 dino2pl 256 7805 0 6278 96 0 96 96 0 8 0 ffsino 288 7805 0 6278 110 0 110 110 0 8 0 nchpl 144 12905 0 11193 64 0 64 64 0 8 0 rtmask 32 24 0 24 2 2 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 32650 0 32650 7 6 1 2 0 8 1 percpumem 16 192 0 143 1 0 1 1 0 8 0 kstatmem 264 192 0 164 4 2 2 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 14 0 14 6 5 1 1 0 8 1 scxspl 216 67260 0 67259 16 15 1 8 1 8 0 plimitpl 152 246 0 227 1 0 1 1 0 8 0 sigapl 424 4838 0 4786 7 1 6 7 0 8 0 knotepl 120 784 0 0 23 0 23 23 0 8 0 kqueuepl 224 527 0 517 2 0 2 2 0 8 1 pipepl 336 199 0 172 4 1 3 3 0 8 0 fdescpl 520 4813 0 4782 3 0 3 3 0 8 0 filepl 160 12966 0 12741 12 1 11 11 0 8 0 lockfpl 104 959 0 956 1 0 1 1 0 8 0 lockfspl 48 421 0 418 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 1747 0 1732 1 0 1 1 0 8 0 zombiepl 144 5037 0 5034 3 2 1 1 0 8 0 processpl 1240 4838 0 4786 6 1 5 5 0 8 0 procpl 656 9790 0 9730 7 1 6 7 0 8 0 srpgc 96 16 0 16 4 4 0 1 0 8 0 sosppl 168 36 0 36 4 3 1 1 0 8 1 sockpl 728 2722 0 2683 7 2 5 5 0 8 1 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 18 0 0 3 0 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 0 8 0 mcl8k 8192 25 0 0 3 0 3 3 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 33 0 0 4 0 4 4 0 8 0 mtagpl 96 33 0 0 1 0 1 1 0 8 0 mbufpl 256 1234 0 0 76 0 76 76 0 8 0 bufpl 280 23527 0 17385 440 0 440 440 0 8 0 anonpl 32 12752 0 0 103 0 103 103 0 246 0 amapchunkpl 152 130606 0 130097 45 18 27 28 0 158 4 amappl16 200 11241 0 11201 84 76 8 30 0 8 2 amappl15 192 24 0 24 2 2 0 1 0 8 0 amappl14 184 129 0 117 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 5558 0 5527 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 70 0 69 1 0 1 1 0 8 0 amappl9 144 247 0 247 2 2 0 1 0 8 0 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 139 0 127 1 0 1 1 0 8 0 amappl6 120 251 0 248 2 1 1 1 0 8 0 amappl5 112 152 0 143 1 0 1 1 0 8 0 amappl4 104 346 0 327 1 0 1 1 0 8 0 amappl3 96 28902 0 28789 7 3 4 4 0 8 0 amappl2 88 758 0 695 2 0 2 2 0 8 0 amappl1 80 26868 0 26265 16 3 13 15 0 8 0 amappl 88 36988 0 36818 6 1 5 5 0 92 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 8 0 8 3 3 0 1 0 8 0 dma128 128 260 0 260 6 5 1 1 0 8 1 dma64 64 9 0 9 3 3 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 4813 0 4782 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4813 0 4782 1 0 1 1 0 8 0 vmmpekpl 168 30872 0 30808 4 0 4 4 0 8 0 vmmpepl 168 282254 0 280237 126 32 94 115 0 357 2 vmsppl 480 4812 0 4782 7 2 5 5 0 8 0 rwobjpl 72 67488 0 60612 136 5 131 136 0 8 1 pdppl 4096 9633 0 9564 143 72 71 87 0 8 2 pvpl 32 21933 0 0 178 1 177 177 0 265 0 pmappl 256 4812 0 4782 4 1 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 523 0 102 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838c4ff0) 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 __mp_lock(ffffffff83903250) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83903250) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c437d80,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x6fb6c4669f20, count: 9 ddb{0}> trace x86_ipi_db(ffffffff838c4ff0) 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 __mp_lock(ffffffff83903250) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83903250) at __mp_lock+0x192 sys/kern/kern_lock.c:165 intr_handler(ffff80003c437d80,ffff800000079a80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f end of kernel end trace frame: 0x6fb6c4669f20, count: -6 ddb{0}> machine ddbcpu 1 Stopped at memcpy+0x19: repe movsq (%rsi),%es:(%rdi) memcpy() at memcpy+0x19 rtm_msg1(14,ffff80003c43d048) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff80000152cf00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2c000,ffff80003c43d460,ffff80000152cf00) at in6_update_ifa+0x1752 sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff80003c43d460,ffff800000b2c000) at in6_ioctl_change_ifaddr+0x621 sys/netinet6/in6.c:352 ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 sys/net/if.c:2455 sys_ioctl(ffff800038418548,ffff80003c43d640,ffff80003c43d590) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c43d640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43d640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4417113d10, count: 6 ddb{1}> trace memcpy() at memcpy+0x19 rtm_msg1(14,ffff80003c43d048) at rtm_msg1+0x306 sys/net/rtsock.c:1644 rtm_addr(14,ffff80000152cf00) at rtm_addr+0xb9 sys/net/rtsock.c:-1 in6_update_ifa(ffff800000b2c000,ffff80003c43d460,ffff80000152cf00) at in6_update_ifa+0x1752 sys/netinet6/in6.c:741 in6_ioctl_change_ifaddr(8080691a,ffff80003c43d460,ffff800000b2c000) at in6_ioctl_change_ifaddr+0x621 sys/netinet6/in6.c:352 ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 pru_control sys/sys/protosw.h:352 [inline] ifioctl(ffff80000151e5e0,8080691a,ffff80003c43d460,ffff800038418548) at ifioctl+0x1571 sys/net/if.c:2455 sys_ioctl(ffff800038418548,ffff80003c43d640,ffff80003c43d590) at sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 syscall(ffff80003c43d640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c43d640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe4417113d10, count: -9