uvm_fault(0xffffffff83504770, 0xffff8000012d1010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x660: movzwl 0xc(%r15,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND 398387 45920 0 0 0 0 syz-executor *146724 45843 0 0 0x4000000 1K syz-executor arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184 rtrequest(1,ffff80002a104398,1,ffff80002a104440,0) at rtrequest+0xbdc sys/net/route.c:1103 rt_ifa_add(ffff800001224d00,240004,ffff800001224d58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 rt_ifa_addlocal(ffff800001224d00) at rt_ifa_addlocal+0x1d2 sys/net/route.c:1381 in_ifinit(ffff8000011b4000,ffff800001224d00,ffff80002a104700,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff80002a1046f0,ffff8000011b4000) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a135c20,ffff80002a1048d0,ffff80002a104820) at sys_ioctl+0x67c syscall(ffff80002a1048d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a1048d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ccd8e14e0, count: 5 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(0xffffffff83504770, 0xffff8000012d1010, 0, 1) -> e ddb{1}> trace arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184 rtrequest(1,ffff80002a104398,1,ffff80002a104440,0) at rtrequest+0xbdc sys/net/route.c:1103 rt_ifa_add(ffff800001224d00,240004,ffff800001224d58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 rt_ifa_addlocal(ffff800001224d00) at rt_ifa_addlocal+0x1d2 sys/net/route.c:1381 in_ifinit(ffff8000011b4000,ffff800001224d00,ffff80002a104700,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff80002a1046f0,ffff8000011b4000) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a135c20,ffff80002a1048d0,ffff80002a104820) at sys_ioctl+0x67c syscall(ffff80002a1048d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a1048d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ccd8e14e0, count: -10 ddb{1}> show registers rdi 0xffff800033f8c000 rsi 0x759 rbp 0xffff80002a104260 rbx 0x14 rdx 0xffff800033f8c000 rcx 0x100040600080100 rax 0xfffffd8074c476e0 r8 0x10 r9 0xfffffd8076b6c070 r10 0xd3e500a787099545 r11 0x2c87b2e4c77948ad r12 0xb4 r13 0xfffffd8074c47600 r14 0xfffffd8076b6c070 r15 0xffff8000012d0ff0 rip 0xffffffff829b9860 arp_rtrequest+0x660 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a1041e0 ss 0x10 arp_rtrequest+0x660: movzwl 0xc(%r15,%rbx,1),%ecx ddb{1}> show proc PROC (syz-executor) tid=146724 pid=45843 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a135710,0xffff80002a135498 process=0xffff800033c168d0 user=0xffff80002a0ff000, vmspace=0xfffffd80601bfc18 estcpu=36, cpticks=2, pctcpu=0.0, user=1, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 45920 398387 54992 0 7 0 syz-executor 45843 388192 47840 0 2 0 syz-executor *45843 146724 47840 0 7 0x4000000 syz-executor 29266 13730 78396 0 2 0 syz-executor 29266 305743 78396 0 3 0x4000080 sbwait syz-executor 54014 85711 0 0 3 0x14280 nfsidl nfsio 53998 401085 0 0 3 0x14280 nfsidl nfsio 19373 280522 0 0 3 0x14280 nfsidl nfsio 58524 189634 0 0 3 0x14280 nfsidl nfsio 96980 61942 0 0 3 0x14280 nfsidl nfsio 5654 266720 0 0 3 0x14280 nfsidl nfsio 94709 50488 0 0 3 0x14280 nfsidl nfsio 35304 2413 0 0 3 0x14280 nfsidl nfsio 70422 362798 0 0 3 0x14280 nfsidl nfsio 72424 137911 0 0 3 0x14280 nfsidl nfsio 31825 398913 0 0 3 0x14280 nfsidl nfsio 15236 75277 0 0 3 0x14280 nfsidl nfsio 31623 316403 0 0 3 0x14280 nfsidl nfsio 63288 94215 0 0 3 0x14280 nfsidl nfsio 23583 173083 0 0 3 0x14280 nfsidl nfsio 52291 113244 0 0 3 0x14280 nfsidl nfsio 32702 286565 0 0 3 0x14280 nfsidl nfsio 65518 144109 0 0 3 0x14280 nfsidl nfsio 56551 233839 0 0 3 0x14280 nfsidl nfsio 90555 306107 0 0 3 0x14280 nfsidl nfsio 11722 160886 35568 0 3 0x82 wait syz-executor 47840 148084 35568 0 3 0x82 nanoslp syz-executor 62846 68350 35568 0 3 0x82 wait syz-executor 54992 351774 35568 0 3 0x82 nanoslp syz-executor 56870 75459 35568 0 3 0x82 nanoslp syz-executor 38059 150767 35568 0 3 0x82 nanoslp syz-executor 78396 306515 35568 0 3 0x82 nanoslp syz-executor 32839 53247 35568 0 3 0x82 wait syz-executor 37809 397946 0 0 3 0x14200 bored sosplice 35568 448015 77611 0 3 0x82 kqread syz-executor 77611 278942 40710 0 3 0x10008a sigsusp ksh 40710 281992 85984 0 3 0x98 kqread sshd-session 85984 476548 13228 0 3 0x92 kqread sshd-session 60416 61516 1 0 3 0x100083 ttyin getty 13228 465123 1 0 3 0x88 kqread sshd 87974 161005 58754 74 3 0x1100092 bpf pflogd 58754 208087 1 0 3 0x80 sbwait pflogd 91018 423608 11239 73 3 0x1100010 biowait syslogd 11239 439094 1 0 3 0x100082 sbwait syslogd 31581 356218 1 0 3 0x100080 kqread resolvd 76226 126315 75214 77 3 0x100092 kqread dhcpleased 37065 369781 75214 77 3 0x100092 kqread dhcpleased 75214 502190 1 0 3 0x80 kqread dhcpleased 14977 368953 0 0 3 0x14200 bored smr 54736 172504 0 0 3 0x14200 pgzero zerothread 60619 448588 0 0 3 0x14200 aiodoned aiodoned 45653 307762 0 0 3 0x14200 syncer update 96966 120031 0 0 3 0x14200 cleaner cleaner 9645 454915 0 0 3 0x14200 reaper reaper 10273 87661 0 0 3 0x14200 pgdaemon pagedaemon 27922 227575 0 0 3 0x14200 bored viomb 72760 181015 0 0 3 0x40014200 acpi0 acpi0 84711 172516 0 0 3 0x40014200 idle1 45646 462287 0 0 3 0x14200 bored softnet3 93723 415887 0 0 3 0x14200 bored softnet2 36080 251690 0 0 3 0x14200 bored softnet1 36202 419110 0 0 3 0x14200 bored softnet0 57512 504300 0 0 2 0x14200 systqmp 70743 131072 0 0 3 0x14200 bored systq 44159 390037 0 0 3 0x14200 tmoslp softclockmp 75472 103705 0 0 3 0x40014200 tmoslp softclock 2608 220033 0 0 3 0x40014200 idle0 1 87109 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 45843 (syz-executor) thread 0xffff80002a135c20 (146724) exclusive rwlock netlock r = 0 (0xffffffff83424760) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 in_ioctl_change_ifaddr+0xbe sys/netinet/in.c:413 #2 ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] #2 ifioctl+0x1571 sys/net/if.c:2449 #3 sys_ioctl+0x67c #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff83553178) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 ifioctl+0x47f sys/net/if.c:2096 #2 sys_ioctl+0x67c #3 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #3 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 91018 (syslogd) thread 0xffff8000ffffd6d8 (423608) exclusive rrwlock inode r = 0 (0xfffffd806e4d21b0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10234 10230K 10424K 166960K 12485 0 pcb 17 13K 14K 166960K 181 0 rtable 226 6K 6K 166960K 2288 0 pf 34 17K 18K 166960K 200 0 ifaddr 44 8K 8K 166960K 304 0 ifgroup 55 2K 2K 166960K 327 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 204 0 ioctlops 0 0K 4K 166960K 1609 0 iov 0 0K 32K 166960K 215 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1448 91K 91K 166960K 2881 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 5K 9K 166960K 10 0 VM map 2 1K 1K 166960K 2 0 sem 19 2K 2K 166960K 47 0 dirhash 15 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 18 65K 97K 166960K 1874 0 sigio 0 0K 0K 166960K 19 0 proc 73 91K 152K 166960K 2303 0 subproc 104 6K 7K 166960K 899 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 127 0 in_multi 98 7K 7K 166960K 785 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 1231 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 74K 91K 166960K 15322 0 UVM aobj 55 4K 4K 166960K 56 0 pinsyscall 43 86K 108K 166960K 4528 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 48 0 NDP 12 0K 2K 166960K 218 0 temp 76 6824K 6912K 166960K 63001 0 kqueue 13 20K 26K 166960K 145 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 205 0 202 1 0 1 1 0 8 0 rtentry 112 787 0 683 4 1 3 4 0 8 0 unpcb 144 857 0 838 14 8 6 6 0 8 5 syncache 336 6 0 6 4 3 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 385 0 380 15 7 8 8 0 8 7 arp 120 140 0 121 1 0 1 1 0 8 0 inpcb 336 1330 0 1320 23 16 7 7 0 8 6 nd6 136 213 0 185 1 0 1 1 0 8 0 pkpcb 40 5 0 5 3 2 1 1 0 8 1 kcovpl 48 69 0 61 1 0 1 1 0 8 0 ppxss 1168 7 0 7 5 5 0 1 0 8 0 pffrag 232 4 0 2 1 0 1 1 0 482 0 pffrnode 88 4 0 2 1 0 1 1 0 8 0 pffrent 40 70 0 68 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 24 136 0 96 1 0 1 1 0 8 0 pfstkey 128 136 0 96 2 0 2 2 0 8 0 pfstate 376 136 0 96 6 1 5 5 0 8 0 pfrule 1344 26 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3179 0 2717 33 4 29 29 0 8 0 art_table 32 3180 0 2717 4 0 4 4 0 8 0 art_node 16 784 0 692 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 4 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 42 0 25 1 0 1 1 0 8 0 shmpl 112 53 0 1 2 0 2 2 0 8 0 dirhash 1024 23 0 4 3 0 3 3 0 8 0 dino2pl 256 3206 0 1583 102 0 102 102 0 8 0 ffsino 272 3206 0 1583 109 0 109 109 0 8 0 nchpl 144 4659 0 2901 66 0 66 66 0 8 0 uvmvnodes 80 4509 0 0 93 0 93 93 0 8 0 vnodes 216 4509 0 0 251 0 251 251 0 8 0 namei 1024 21230 0 21230 6 5 1 2 0 8 1 percpumem 16 116 0 70 1 0 1 1 0 8 0 kstatmem 264 164 0 140 2 0 2 2 0 8 0 scxspl 216 38814 0 38813 15 13 2 8 1 8 1 plimitpl 152 462 0 445 1 0 1 1 0 8 0 sigapl 424 2078 0 2007 12 3 9 9 0 8 0 futexpl 64 12923 0 12923 7 6 1 1 0 8 1 knotepl 120 562 0 0 17 0 17 17 0 8 0 kqueuepl 216 224 0 215 1 0 1 1 0 8 0 pipepl 320 534 0 507 8 5 3 8 0 8 0 fdescpl 496 2038 0 2006 12 7 5 6 0 8 0 filepl 152 9992 0 9737 38 20 18 18 0 8 7 lockfpl 104 322 0 319 1 0 1 1 0 8 0 lockfspl 48 133 0 130 1 0 1 1 0 8 0 sessionpl 144 85 0 76 1 0 1 1 0 8 0 pgrppl 48 165 0 148 1 0 1 1 0 8 0 ucredpl 104 1476 0 1463 1 0 1 1 0 8 0 zombiepl 144 2012 0 2007 1 0 1 1 0 8 0 processpl 1160 2078 0 2007 7 1 6 6 0 8 0 procpl 648 3503 0 3430 10 2 8 8 0 8 0 srpgc 96 4 0 4 2 2 0 1 0 8 0 sosppl 168 6 0 6 2 2 0 1 0 8 0 sockpl 664 2419 0 2387 41 30 11 20 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 233 0 0 28 0 28 28 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 1024 0 0 60 0 60 60 0 8 0 bufpl 280 9058 0 2912 443 1 442 443 0 8 0 anonpl 24 397942 0 393429 81 24 57 73 0 185 12 amapchunkpl 152 50234 0 49613 37 7 30 33 0 158 5 amappl16 200 8706 0 8678 47 36 11 28 0 8 8 amappl15 192 17 0 17 1 1 0 1 0 8 0 amappl14 184 255 0 243 1 0 1 1 0 8 0 amappl13 176 14 0 14 1 1 0 1 0 8 0 amappl12 168 3722 0 3691 4 2 2 3 0 8 0 amappl11 160 64 0 49 1 0 1 1 0 8 0 amappl10 152 38 0 38 1 1 0 1 0 8 0 amappl9 144 131 0 131 1 1 0 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 240 0 228 1 0 1 1 0 8 0 amappl6 120 779 0 778 1 0 1 1 0 8 0 amappl5 112 390 0 378 1 0 1 1 0 8 0 amappl4 104 513 0 492 1 0 1 1 0 8 0 amappl3 96 9376 0 9251 7 3 4 4 0 8 0 amappl2 88 1557 0 1488 2 0 2 2 0 8 0 amappl1 80 17024 0 16458 17 3 14 15 0 8 0 amappl 88 14426 0 14226 6 1 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 128 253 0 253 1 1 0 1 0 8 0 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 55 0 1 1 0 1 1 0 8 0 uaddrrnd 24 2038 0 2006 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2038 0 2006 1 0 1 1 0 8 0 vmmpekpl 168 18342 0 18284 4 1 3 3 0 8 0 vmmpepl 168 133531 0 131586 121 26 95 104 0 357 9 vmsppl 440 2037 0 2006 7 2 5 5 0 8 0 rwobjpl 56 45765 0 40231 85 4 81 81 0 8 2 pdppl 4096 4083 0 4012 187 116 71 87 0 8 0 pvpl 32 28879 0 0 233 2 231 231 0 265 0 pmappl 248 2037 0 2006 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 584 0 158 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff83552f70) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83552f70) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800033b9bbe0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83552f70) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83552f70) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800033b9bdb0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800033b9bdb0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79e287d390d0, count: 6 ddb{0}> trace x86_ipi_db(ffffffff83466ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(ffffffff83552f70) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83552f70) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800033b9bbe0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff83552f70) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83552f70) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff800033b9bdb0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff800033b9bdb0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79e287d390d0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at arp_rtrequest+0x660: movzwl 0xc(%r15,%rbx,1),%ecx arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184 rtrequest(1,ffff80002a104398,1,ffff80002a104440,0) at rtrequest+0xbdc sys/net/route.c:1103 rt_ifa_add(ffff800001224d00,240004,ffff800001224d58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 rt_ifa_addlocal(ffff800001224d00) at rt_ifa_addlocal+0x1d2 sys/net/route.c:1381 in_ifinit(ffff8000011b4000,ffff800001224d00,ffff80002a104700,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff80002a1046f0,ffff8000011b4000) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a135c20,ffff80002a1048d0,ffff80002a104820) at sys_ioctl+0x67c syscall(ffff80002a1048d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a1048d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ccd8e14e0, count: 5 ddb{1}> trace arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff8000011b4000,1,fffffd8076b6c070) at arp_rtrequest+0x660 sys/netinet/if_ether.c:184 rtrequest(1,ffff80002a104398,1,ffff80002a104440,0) at rtrequest+0xbdc sys/net/route.c:1103 rt_ifa_add(ffff800001224d00,240004,ffff800001224d58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 rt_ifa_addlocal(ffff800001224d00) at rt_ifa_addlocal+0x1d2 sys/net/route.c:1381 in_ifinit(ffff8000011b4000,ffff800001224d00,ffff80002a104700,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff80002a1046f0,ffff8000011b4000) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001186010,8040691a,ffff80002a1046f0,ffff80002a135c20) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80002a135c20,ffff80002a1048d0,ffff80002a104820) at sys_ioctl+0x67c syscall(ffff80002a1048d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a1048d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2ccd8e14e0, count: -10