uvm_fault(0xffffffff83553e98, 0xffff80000160c010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *361429 46026 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e sys/netinet/if_ether.c:184 rtrequest(1,ffff800034615678,1,ffff800034615748,0) at rtrequest+0xd2c sys/net/route.c:1103 rt_ifa_add(ffff8000015b0400,240004,ffff8000015b0458,0) at rt_ifa_add+0x38d sys/net/route.c:1273 rt_ifa_addlocal(ffff8000015b0400) at rt_ifa_addlocal+0x1b1 sys/net/route.c:1381 in_ifinit(ffff800001589800,ffff8000015b0400,ffff800034615a10,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff800034615a00,ffff800001589800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 pru_control sys/sys/protosw.h:355 [inline] ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 sys/net/if.c:2449 sys_ioctl(ffff80003761c2a8,ffff800034615be0,ffff800034615b30) at sys_ioctl+0x678 syscall(ffff800034615be0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1e53ded9130, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xffffffff83553e98, 0xffff80000160c010, 0, 1) -> e ddb> trace arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e sys/netinet/if_ether.c:184 rtrequest(1,ffff800034615678,1,ffff800034615748,0) at rtrequest+0xd2c sys/net/route.c:1103 rt_ifa_add(ffff8000015b0400,240004,ffff8000015b0458,0) at rt_ifa_add+0x38d sys/net/route.c:1273 rt_ifa_addlocal(ffff8000015b0400) at rt_ifa_addlocal+0x1b1 sys/net/route.c:1381 in_ifinit(ffff800001589800,ffff8000015b0400,ffff800034615a10,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff800034615a00,ffff800001589800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 pru_control sys/sys/protosw.h:355 [inline] ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 sys/net/if.c:2449 sys_ioctl(ffff80003761c2a8,ffff800034615be0,ffff800034615b30) at sys_ioctl+0x678 syscall(ffff800034615be0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1e53ded9130, count: -10 ddb> show registers rdi 0x20 rsi 0x90 rbp 0xffff800034615560 rbx 0x14 rdx 0 rcx 0x100040600080100 rax 0xfffffd80771074e0 r8 0x10 r9 0xfffffd807ded3320 r10 0x88e7c1aeba16204e r11 0x326163e8c8e7c989 r12 0x2a8 r13 0xfffffd8077107400 r14 0xfffffd807ded3320 r15 0xffff80000160bff0 rip 0xffffffff8174d99e arp_rtrequest+0x65e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000346154e0 ss 0x10 arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=361429 pid=46026 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003761ca40,0xffff80003761cf60 process=0xffff8000376877c8 user=0xffff800034610000, vmspace=0xfffffd8067e8c578 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14776 324811 53011 0 2 0x102004 sh 98119 387879 5497 0 2 0 syz-executor 98119 316102 5497 0 2 0x4000000 syz-executor 52918 142580 16059 0 2 0 syz-executor 52918 94320 16059 0 3 0x4000080 netcon syz-executor 52918 165587 16059 0 3 0x4000080 kqread syz-executor 46026 421243 86362 0 2 0 syz-executor *46026 361429 86362 0 7 0x4000000 syz-executor 46026 121410 86362 0 3 0x4000080 fsleep syz-executor 46026 402868 86362 0 3 0x4000080 fsleep syz-executor 40137 448059 56330 0 2 0 syz-executor 40137 180031 56330 0 3 0x4000080 sbwait syz-executor 40137 447784 56330 0 2 0x4000000 syz-executor 77271 71484 52429 0 2 0x101004 sh 53011 75736 12561 0 3 0x10008a sigsusp sh 52429 296774 46264 0 3 0x10008a sigsusp sh 86362 259112 8511 0 3 0x82 nanoslp syz-executor 12561 477080 8511 0 3 0x82 wait syz-executor 46264 56055 8511 0 3 0x82 wait syz-executor 56330 277640 8511 0 3 0x82 nanoslp syz-executor 86269 388714 8511 0 2 0x2 syz-executor 16059 51342 8511 0 3 0x82 nanoslp syz-executor 5497 7251 8511 0 3 0x82 nanoslp syz-executor 38437 313871 8511 0 2 0x2 syz-executor 39089 56073 0 0 3 0x14200 bored sosplice 58815 414704 0 0 3 0x14280 nfsidl nfsio 22185 262543 0 0 3 0x14280 nfsidl nfsio 65494 6360 0 0 3 0x14280 nfsidl nfsio 71888 481308 0 0 3 0x14280 nfsidl nfsio 49425 162428 0 0 3 0x14280 nfsidl nfsio 83588 318015 0 0 3 0x14280 nfsidl nfsio 44438 242107 0 0 3 0x14280 nfsidl nfsio 57181 241660 0 0 3 0x14280 nfsidl nfsio 4574 146942 0 0 3 0x14280 nfsidl nfsio 1628 187671 0 0 3 0x14280 nfsidl nfsio 32395 198013 0 0 3 0x14280 nfsidl nfsio 68894 205929 0 0 3 0x14280 nfsidl nfsio 7168 99227 0 0 3 0x14280 nfsidl nfsio 68084 466839 0 0 3 0x14280 nfsidl nfsio 73017 265245 0 0 3 0x14280 nfsidl nfsio 28840 392755 0 0 3 0x14280 nfsidl nfsio 25435 7908 0 0 3 0x14280 nfsidl nfsio 84082 305066 0 0 3 0x14280 nfsidl nfsio 32559 280113 0 0 3 0x14280 nfsidl nfsio 79781 170701 0 0 3 0x14280 nfsidl nfsio 8511 323744 84953 0 3 0x82 kqread syz-executor 84953 353686 60465 0 3 0x10008a sigsusp ksh 60465 253014 32377 0 3 0x98 kqread sshd-session 32377 282309 1 0 3 0x92 kqread sshd-session 80055 450049 1 0 3 0x100083 ttyin getty 28177 293157 14856 73 2 0x1100010 syslogd 14856 307492 1 0 3 0x100082 sbwait syslogd 68259 61898 1 0 3 0x100080 kqread resolvd 2383 481746 56430 77 3 0x100092 kqread dhcpleased 49641 57920 56430 77 3 0x100092 kqread dhcpleased 56430 229750 1 0 3 0x80 kqread dhcpleased 29465 456003 0 0 3 0x14200 bored smr 13049 376404 0 0 2 0x14200 zerothread 38365 354730 0 0 3 0x14200 aiodoned aiodoned 18463 170163 0 0 3 0x14200 syncer update 13371 30200 0 0 3 0x14200 cleaner cleaner 12993 400284 0 0 3 0x14200 reaper reaper 11407 354701 0 0 3 0x14200 pgdaemon pagedaemon 79495 350499 0 0 3 0x14200 bored viomb 69465 134029 0 0 3 0x40014200 acpi0 acpi0 37558 314346 0 0 3 0x14200 bored softnet3 13603 138593 0 0 3 0x14200 bored softnet2 21188 25791 0 0 3 0x14200 bored softnet1 47820 271962 0 0 3 0x14200 bored softnet0 73630 329479 0 0 2 0x14200 systqmp 4058 145133 0 0 3 0x14200 bored systq 51877 466552 0 0 2 0x40014200 softclock 68834 342139 0 0 3 0x40014200 idle0 1 58566 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10189 14117K 14374K 166960K 12140 0 pcb 17 15K 17K 166960K 299 0 rtable 181 7K 8K 166960K 2913 0 pf 35 13K 269K 166960K 260 0 ifaddr 39 7K 8K 166960K 395 0 ifgroup 58 2K 2K 166960K 450 0 sysctl 3 1K 1K 166960K 4 0 counters 32 17K 18K 166960K 133 0 ioctlops 0 0K 4K 166960K 286 0 iov 0 0K 28K 166960K 91 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1493 94K 94K 166960K 3410 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 59 0 dirhash 18 3K 3K 166960K 45 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 18 65K 97K 166960K 2791 0 sigio 0 0K 0K 166960K 64 0 proc 61 59K 124K 166960K 2806 0 subproc 104 6K 7K 166960K 1134 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 192 0 in_multi 77 5K 7K 166960K 1014 0 ether_multi 1 0K 0K 166960K 10 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 2 0K 1K 166960K 1695 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 196 71K 94K 166960K 22462 0 UVM aobj 120 7K 7K 166960K 128 0 pinsyscall 38 76K 104K 166960K 5843 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 88 0 NDP 13 0K 2K 166960K 285 0 temp 79 6818K 6944K 166960K 78621 0 kqueue 13 20K 29K 166960K 270 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 394 0 390 4 3 1 3 0 8 0 rtentry 112 1010 0 931 4 0 4 4 0 8 1 unpcb 144 1791 0 1770 14 10 4 6 0 8 3 syncache 336 9 0 9 3 2 1 1 0 8 1 tcpqe 32 4 0 4 3 2 1 1 0 8 1 tcpcb 808 591 0 586 15 14 1 8 0 8 0 arp 88 183 0 169 1 0 1 1 0 8 0 ipq 40 9 0 7 1 0 1 1 0 8 0 ipqe 40 100 0 98 1 0 1 1 0 8 0 inpcb 336 2324 0 2314 18 16 2 12 0 8 0 nd6 104 264 0 246 1 0 1 1 0 8 0 pkpcb 40 22 0 22 2 2 0 1 0 8 0 kcovpl 48 87 0 79 1 0 1 1 0 8 0 ppxss 1072 12 0 12 3 2 1 1 0 8 1 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfrule 1344 4 0 4 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 4044 0 3690 39 11 28 30 0 8 4 art_table 32 4046 0 3690 4 0 4 4 0 8 0 art_node 16 1006 0 936 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 9 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 54 0 44 1 0 1 1 0 8 0 shmpl 112 125 0 8 4 0 4 4 0 8 0 dirhash 1024 39 0 18 3 0 3 3 0 8 0 dino2pl 256 4486 0 2841 103 0 103 103 0 8 0 ffsino 240 4486 0 2841 97 0 97 97 0 8 0 nchpl 144 6952 0 6315 65 39 26 65 0 8 0 uvmvnodes 80 6087 0 0 125 0 125 125 0 8 0 vnodes 216 6087 0 0 339 0 339 339 0 8 0 namei 1024 31576 0 31572 5 4 1 2 0 8 0 kstatmem 264 228 0 202 3 1 2 3 0 8 0 scsiplug 72 4 0 4 2 1 1 1 0 8 1 scxspl 216 49048 0 49048 9 8 1 8 1 8 1 plimitpl 152 406 0 389 1 0 1 1 0 8 0 sigapl 424 2935 0 2869 8 0 8 8 0 8 0 futexpl 64 23442 0 23440 1 0 1 1 0 8 0 knotepl 120 53798 0 53751 38 28 10 16 0 8 8 kqueuepl 184 588 0 579 6 5 1 4 0 8 0 pipepl 288 610 0 583 7 4 3 7 0 8 0 fdescpl 432 2897 0 2868 5 1 4 5 0 8 0 filepl 120 16775 0 16529 18 7 11 15 0 8 3 lockfpl 104 701 0 697 1 0 1 1 0 8 0 lockfspl 48 218 0 214 1 0 1 1 0 8 0 sessionpl 144 103 0 96 1 0 1 1 0 8 0 pgrppl 48 272 0 257 1 0 1 1 0 8 0 ucredpl 104 2521 0 2510 1 0 1 1 0 8 0 zombiepl 144 3024 0 3024 2 1 1 1 0 8 1 processpl 1096 2935 0 2869 6 1 5 6 0 8 0 procpl 648 5204 0 5130 10 1 9 9 0 8 2 sosppl 168 9 0 8 3 2 1 1 0 8 0 sockpl 504 4559 0 4524 66 54 12 26 0 8 7 mcl64k 65536 13 0 13 3 2 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 2 2 0 1 0 8 0 mcl8k 8192 48 0 48 3 2 1 1 0 8 1 mcl4k 4096 3 0 3 1 1 0 1 0 8 0 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 10785 0 10692 33 18 15 25 0 8 1 mtagpl 96 12 0 12 2 1 1 1 0 8 1 mbufpl 256 32418 0 32228 108 92 16 89 0 8 2 bufpl 280 10522 0 3305 516 0 516 516 0 8 0 anonpl 24 406904 0 403918 138 89 49 75 0 187 15 amapchunkpl 152 78872 0 78468 67 36 31 43 0 158 12 amappl16 200 6816 0 6805 27 24 3 15 0 8 2 amappl15 192 48 0 48 1 1 0 1 0 8 0 amappl14 184 272 0 263 1 0 1 1 0 8 0 amappl13 176 18 0 18 2 1 1 1 0 8 1 amappl12 168 4744 0 4713 3 1 2 3 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 118 0 118 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 252 0 243 1 0 1 1 0 8 0 amappl6 120 942 0 938 1 0 1 1 0 8 0 amappl5 112 443 0 432 1 0 1 1 0 8 0 amappl4 104 520 0 508 1 0 1 1 0 8 0 amappl3 96 14192 0 14102 6 2 4 4 0 8 1 amappl2 88 1762 0 1706 2 0 2 2 0 8 0 amappl1 80 20394 0 19950 14 3 11 14 0 8 0 amappl 88 21398 0 21251 6 1 5 5 0 92 1 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 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 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 72 127 0 8 3 0 3 3 0 8 0 uaddrrnd 24 2897 0 2868 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2897 0 2868 1 0 1 1 0 8 0 vmmpekpl 168 22895 0 22835 4 0 4 4 0 8 0 vmmpepl 168 178761 0 177261 105 30 75 90 0 357 5 vmsppl 344 2896 0 2868 4 1 3 4 0 8 0 rwobjpl 24 54860 0 47917 42 0 42 42 0 8 0 pdppl 4096 5800 0 5736 194 126 68 82 0 8 4 pvpl 32 1370184 0 1361535 614 393 221 333 0 265 128 pmappl 216 2896 0 2868 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 703 0 348 14 2 12 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e sys/netinet/if_ether.c:184 rtrequest(1,ffff800034615678,1,ffff800034615748,0) at rtrequest+0xd2c sys/net/route.c:1103 rt_ifa_add(ffff8000015b0400,240004,ffff8000015b0458,0) at rt_ifa_add+0x38d sys/net/route.c:1273 rt_ifa_addlocal(ffff8000015b0400) at rt_ifa_addlocal+0x1b1 sys/net/route.c:1381 in_ifinit(ffff800001589800,ffff8000015b0400,ffff800034615a10,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff800034615a00,ffff800001589800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 pru_control sys/sys/protosw.h:355 [inline] ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 sys/net/if.c:2449 sys_ioctl(ffff80003761c2a8,ffff800034615be0,ffff800034615b30) at sys_ioctl+0x678 syscall(ffff800034615be0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1e53ded9130, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:281 [inline] arp_rtrequest(ffff800001589800,1,fffffd807ded3320) at arp_rtrequest+0x65e sys/netinet/if_ether.c:184 rtrequest(1,ffff800034615678,1,ffff800034615748,0) at rtrequest+0xd2c sys/net/route.c:1103 rt_ifa_add(ffff8000015b0400,240004,ffff8000015b0458,0) at rt_ifa_add+0x38d sys/net/route.c:1273 rt_ifa_addlocal(ffff8000015b0400) at rt_ifa_addlocal+0x1b1 sys/net/route.c:1381 in_ifinit(ffff800001589800,ffff8000015b0400,ffff800034615a10,1) at in_ifinit+0x26c sys/netinet/in.c:669 in_ioctl_change_ifaddr(8040691a,ffff800034615a00,ffff800001589800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 pru_control sys/sys/protosw.h:355 [inline] ifioctl(fffffd806a9d47e0,8040691a,ffff800034615a00,ffff80003761c2a8) at ifioctl+0x1519 sys/net/if.c:2449 sys_ioctl(ffff80003761c2a8,ffff800034615be0,ffff800034615b30) at sys_ioctl+0x678 syscall(ffff800034615be0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1e53ded9130, count: -10