uvm_fault(0xffffffff8388fe08, 0xffff8000014a700a, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *196362 53933 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c95d860,7,ffff80003c95d7d0,5) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001495300,ffff80003c95d908,ffff80003c95d860,7,5) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bc37400,ffff80000149c470) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000149c470,fffffd806bc37400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000149c470,0,ffff80003c95dab8,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003bd1e560,45,ffff80003c95dbb0,40c,ffff80003c95dc50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003bd1e560,ffff80003c95dd00,ffff80003c95dc50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c95dd00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95dd00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4483f23a710, 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(0xffffffff8388fe08, 0xffff8000014a700a, 0, 1) -> e ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c95d860,7,ffff80003c95d7d0,5) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001495300,ffff80003c95d908,ffff80003c95d860,7,5) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bc37400,ffff80000149c470) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000149c470,fffffd806bc37400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000149c470,0,ffff80003c95dab8,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003bd1e560,45,ffff80003c95dbb0,40c,ffff80003c95dc50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003bd1e560,ffff80003c95dd00,ffff80003c95dc50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c95dd00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95dd00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4483f23a710, count: -10 ddb> show registers rdi 0x20 rsi 0x90 rbp 0xffff80003c95d6b0 rbx 0xde rdx 0 rcx 0xffff8000014a6f20 rax 0xfffffd806bc378e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x930e9be4b788ab1f r11 0x33a4ce32a016f9ff r12 0x19 r13 0xfffffd806bc37800 r14 0xfffffd806b9b7348 r15 0xffff80000019f058 rip 0xffffffff81900954 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c95d630 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=196362 pid=53933 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=51, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003bd1ea90,0xffff80003bd1e040 process=0xffff80003c9bad20 user=0xffff80003c958000, vmspace=0xfffffd806a9f52f8 estcpu=1, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53933 461871 13864 0 2 0 syz-executor *53933 196362 13864 0 7 0x4000000 syz-executor 53933 246030 13864 0 3 0x4000080 fsleep syz-executor 73726 326418 26115 0 2 0 syz-executor 73726 18617 26115 0 3 0x4000080 fsleep syz-executor 73597 46222 44836 0 2 0 syz-executor 73597 427046 44836 0 3 0x4000080 fsleep syz-executor 35337 382771 53481 0 2 0 syz-executor 35337 41849 53481 0 3 0x4000080 fsleep syz-executor 7913 38775 0 0 3 0x14280 nfsidl nfsio 72313 366785 0 0 3 0x14280 nfsidl nfsio 3868 444394 0 0 3 0x14280 nfsidl nfsio 42733 169947 0 0 3 0x14280 nfsidl nfsio 7900 59961 0 0 3 0x14280 nfsidl nfsio 22448 153362 0 0 3 0x14280 nfsidl nfsio 62651 442690 0 0 3 0x14280 nfsidl nfsio 85939 447173 0 0 3 0x14280 nfsidl nfsio 91108 362081 0 0 3 0x14280 nfsidl nfsio 12415 452179 0 0 3 0x14280 nfsidl nfsio 1680 114266 0 0 3 0x14280 nfsidl nfsio 79672 431254 0 0 3 0x14280 nfsidl nfsio 14625 128009 0 0 3 0x14280 nfsidl nfsio 59935 152828 0 0 3 0x14280 nfsidl nfsio 69397 321174 0 0 3 0x14280 nfsidl nfsio 72729 132327 0 0 3 0x14280 nfsidl nfsio 90707 76096 0 0 3 0x14280 nfsidl nfsio 64076 153853 0 0 3 0x14280 nfsidl nfsio 94652 271519 0 0 3 0x14280 nfsidl nfsio 15410 425734 0 0 3 0x14280 nfsidl nfsio 51671 127817 21397 0 2 0 syz-executor 51671 63973 21397 0 3 0x4000080 kqread syz-executor 51671 388025 21397 0 3 0x4000080 fsleep syz-executor 91073 117977 39591 0 2 0 syz-executor 91073 142209 39591 0 3 0x4000080 fsleep syz-executor 93138 110786 87874 0 2 0xc80 syz-executor 93138 1327 87874 0 3 0x4000080 pipewr syz-executor 93138 22983 87874 0 3 0x4000080 pipewr syz-executor 93138 271055 87874 0 3 0x4000080 fsleep syz-executor 16763 42959 72257 0 2 0x2 ifconfig 72257 469288 32674 0 3 0x10008a sigsusp sh 53481 466614 29643 0 3 0x82 nanoslp syz-executor 13864 2738 29643 0 2 0xc82 syz-executor 44836 320092 29643 0 3 0x82 nanoslp syz-executor 32674 493134 29643 0 3 0x82 wait syz-executor 39591 384797 29643 0 3 0x82 nanoslp syz-executor 87874 276659 29643 0 2 0xc82 syz-executor 26115 424981 29643 0 2 0xc82 syz-executor 21397 296282 29643 0 2 0xc82 syz-executor 29643 86608 73241 0 3 0x82 kqread syz-executor 73241 207251 60224 0 3 0x10008a sigsusp ksh 60224 360971 77710 0 3 0x98 kqread sshd-session 77710 116440 14805 0 3 0x92 kqread sshd-session 51717 226595 1 0 3 0x100083 ttyin getty 14805 484349 1 0 3 0x88 kqread sshd 83720 309709 34761 73 3 0x1100090 kqread syslogd 34761 3305 1 0 3 0x100082 sbwait syslogd 91932 170740 1 0 3 0x100080 kqread resolvd 58254 476845 24850 77 3 0x100092 kqread dhcpleased 21219 279686 24850 77 3 0x100092 kqread dhcpleased 24850 426987 1 0 3 0x80 kqread dhcpleased 77674 44237 0 0 3 0x14200 bored smr 67923 17717 0 0 2 0x14200 zerothread 88301 17480 0 0 3 0x14200 aiodoned aiodoned 29350 113089 0 0 3 0x14200 syncer update 20955 446704 0 0 3 0x14200 cleaner cleaner 98 89104 0 0 3 0x14200 reaper reaper 82327 283393 0 0 3 0x14200 pgdaemon pagedaemon 84769 255417 0 0 3 0x14200 bored viomb 85186 319781 0 0 3 0x40014200 acpi0 acpi0 63979 469395 0 0 3 0x14200 bored softnet0 56377 11862 0 0 3 0x14200 bored systqmp 18904 148545 0 0 3 0x14200 bored systq 88228 33914 0 0 3 0x40014200 tmoslp softclock 80112 37526 0 0 3 0x40014200 idle0 1 309109 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 10198 11059K 11105K 166960K 11288 0 pcb 18 12K 12K 166960K 18 0 rtable 230 7K 7K 166960K 349 0 pf 30 12K 12K 166960K 30 0 ifaddr 39 6K 6K 166960K 41 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 2K 166960K 28 0 iov 0 0K 2K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1371 86K 86K 166960K 1392 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 97K 166960K 134 0 proc 57 58K 108K 166960K 451 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 88 6K 6K 166960K 88 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 353 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 237 152K 159K 166960K 3136 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 40 80K 94K 166960K 1194 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 25 1K 1K 166960K 25 0 temp 35 8658K 8722K 166960K 3743 0 kqueue 15 24K 24K 166960K 24 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 69 0 32 2 0 2 2 0 8 0 rtentry 136 101 0 1 4 0 4 4 0 8 0 unpcb 144 33 0 16 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 8 0 4 1 0 1 1 0 8 0 arp 96 16 0 0 1 0 1 1 0 8 0 inpcb 328 58 0 49 2 0 2 2 0 8 1 nd6 112 21 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 408 0 0 26 0 26 26 0 8 0 art_table 40 410 0 0 5 0 5 5 0 8 0 art_node 32 101 0 10 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1557 0 52 95 0 95 95 0 8 0 ffsino 256 1557 0 52 95 0 95 95 0 8 0 nchpl 144 1754 0 64 63 0 63 63 0 8 0 vnodes 216 1675 0 0 94 0 94 94 0 8 0 namei 1024 5018 0 5018 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5628 0 5628 3 0 3 3 1 8 3 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 443 0 379 8 0 8 8 0 8 0 knotepl 120 2662 0 2610 2 0 2 2 0 8 0 kqueuepl 184 20 0 9 1 0 1 1 0 8 0 pipepl 304 114 0 86 3 0 3 3 0 8 0 fdescpl 448 410 0 379 5 0 5 5 0 8 0 filepl 120 1427 0 1147 9 0 9 9 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 63 0 52 1 0 1 1 0 8 0 zombiepl 144 379 0 379 1 0 1 1 0 8 1 processpl 1152 443 0 379 5 0 5 5 0 8 0 procpl 664 459 0 384 7 0 7 7 0 8 0 sockpl 552 160 0 97 5 0 5 5 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2454 0 2398 14 0 14 14 0 8 6 mcl2k 2048 176 0 174 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3974 0 3843 9 0 9 9 0 8 0 bufpl 280 2246 0 118 152 0 152 152 0 8 0 anonpl 24 93060 0 89979 31 0 31 31 0 187 9 amapchunkpl 152 8544 0 8040 23 0 23 23 0 158 3 amappl16 200 1591 0 1573 5 0 5 5 0 8 4 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 3 0 3 1 0 1 1 0 8 1 amappl13 176 404 0 402 1 0 1 1 0 8 0 amappl12 168 744 0 705 2 0 2 2 0 8 0 amappl11 160 1 0 1 1 0 1 1 0 8 1 amappl10 152 45 0 34 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 0 1 1 0 8 1 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 79 0 78 1 0 1 1 0 8 0 amappl6 120 258 0 245 1 0 1 1 0 8 0 amappl5 112 67 0 60 1 0 1 1 0 8 0 amappl4 104 389 0 363 1 0 1 1 0 8 0 amappl3 96 1283 0 1172 3 0 3 3 0 8 0 amappl2 88 501 0 450 2 0 2 2 0 8 0 amappl1 80 8772 0 8222 13 0 13 13 0 8 0 amappl 88 2458 0 2291 4 0 4 4 0 92 0 uvmvnodes 80 95 0 0 2 0 2 2 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 410 0 379 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 410 0 379 1 0 1 1 0 8 0 vmmpekpl 168 5113 0 5080 2 0 2 2 0 8 0 vmmpepl 168 34173 0 32370 79 0 79 79 0 357 0 vmsppl 368 409 0 379 4 0 4 4 0 8 1 rwobjpl 40 12704 0 11757 11 0 11 11 0 8 1 pdppl 4096 826 0 758 96 14 82 82 0 8 14 pvpl 32 209106 0 200884 93 0 93 93 0 265 19 pmappl 216 409 0 379 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 358 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c95d860,7,ffff80003c95d7d0,5) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001495300,ffff80003c95d908,ffff80003c95d860,7,5) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bc37400,ffff80000149c470) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000149c470,fffffd806bc37400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000149c470,0,ffff80003c95dab8,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003bd1e560,45,ffff80003c95dbb0,40c,ffff80003c95dc50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003bd1e560,ffff80003c95dd00,ffff80003c95dc50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c95dd00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95dd00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4483f23a710, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806b9b7348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c95d860,7,ffff80003c95d7d0,5) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001495300,ffff80003c95d908,ffff80003c95d860,7,5) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bc37400,ffff80000149c470) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff80000149c470,fffffd806bc37400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff80000149c470,0,ffff80003c95dab8,0,0,40c) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003bd1e560,45,ffff80003c95dbb0,40c,ffff80003c95dc50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003bd1e560,ffff80003c95dd00,ffff80003c95dc50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c95dd00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c95dd00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4483f23a710, count: -10