uvm_fault(0xffffffff83965ed0, 0xffff80000149f0ca, 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 * 64752 83814 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff800039d1b2e0,0,ffff800039d1b250,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000149c400,ffff800039d1b388,ffff800039d1b2e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb31500,ffff800010fdc8b0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdc8b0,fffffd807eb31500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc8b0,0,ffff800039d1b538,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c986d20,3,ffff800039d1b630,808,ffff800039d1b6d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c986d20,ffff800039d1b780,ffff800039d1b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff800039d1b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800039d1b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1c8cb55b490, 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(0xffffffff83965ed0, 0xffff80000149f0ca, 0, 1) -> e ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff800039d1b2e0,0,ffff800039d1b250,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000149c400,ffff800039d1b388,ffff800039d1b2e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb31500,ffff800010fdc8b0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdc8b0,fffffd807eb31500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc8b0,0,ffff800039d1b538,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c986d20,3,ffff800039d1b630,808,ffff800039d1b6d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c986d20,ffff800039d1b780,ffff800039d1b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff800039d1b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800039d1b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1c8cb55b490, count: -10 ddb> show registers rdi 0xffff80002ccea000 rsi 0x94e rbp 0xffff800039d1b130 rbx 0xde rdx 0xffff80002ccea000 rcx 0xffff80000149efe0 rax 0xfffffd807eb318e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xe0145b82fee9060b r11 0x2fe28f58034a49c5 r12 0x1a r13 0xfffffd807eb31800 r14 0xfffffd806bff09a8 r15 0xffff80000019f058 rip 0xffffffff81b00544 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800039d1b0b0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=64752 pid=83814 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=0xffff80003c987a18,0xffff80003c986a98 process=0xffff8000ffff4da0 user=0xffff800039d16000, vmspace=0xfffffd806cb67460 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 17171 432286 63775 0 2 0 syz-executor 83814 26102 53532 0 2 0 syz-executor *83814 64752 53532 0 7 0x4000000 syz-executor 97780 197672 67951 0 2 0 syz-executor 11688 202886 15638 0 2 0 syz-executor 26119 218296 43814 0 2 0 syz-executor 13391 219899 38281 0 2 0 syz-executor 13391 7891 38281 0 2 0x4000000 syz-executor 51063 518385 3071 0 2 0 syz-executor 51063 291623 3071 0 2 0x4000000 syz-executor 19864 479111 96479 0 2 0xc80 syz-executor 19864 488651 96479 0 3 0x4000080 sbwait syz-executor 63775 353392 93193 0 3 0x82 nanoslp syz-executor 15638 31226 93193 0 3 0x82 nanoslp syz-executor 43814 363418 93193 0 3 0x82 nanoslp syz-executor 96479 313046 93193 0 2 0xc82 syz-executor 3071 81137 93193 0 3 0x82 nanoslp syz-executor 38281 51320 93193 0 3 0x82 nanoslp syz-executor 53532 15153 93193 0 3 0x82 nanoslp syz-executor 67951 268932 93193 0 3 0x82 nanoslp syz-executor 93193 348765 9844 0 3 0x82 kqread syz-executor 9844 429192 68641 0 3 0x10008a sigsusp ksh 68641 411126 94325 0 3 0x98 kqread sshd-session 94325 147558 15423 0 3 0x92 kqread sshd-session 39820 70617 1 0 3 0x100083 ttyin getty 15423 430172 1 0 3 0x88 kqread sshd 39673 375713 59717 73 3 0x1100090 kqread syslogd 59717 276157 1 0 3 0x100082 sbwait syslogd 63412 413183 1 0 3 0x100080 kqread resolvd 97902 224121 73538 77 3 0x100092 kqread dhcpleased 49474 426971 73538 77 3 0x100092 kqread dhcpleased 73538 305759 1 0 3 0x80 kqread dhcpleased 38094 460118 0 0 3 0x14200 bored smr 87136 79784 0 0 2 0x14200 zerothread 54507 251257 0 0 3 0x14200 aiodoned aiodoned 8227 292142 0 0 3 0x14200 syncer update 66900 295020 0 0 3 0x14200 cleaner cleaner 84416 171007 0 0 3 0x14200 reaper reaper 54294 309139 0 0 3 0x14200 pgdaemon pagedaemon 68918 520326 0 0 3 0x14200 bored viomb 13524 79983 0 0 3 0x40014200 acpi0 acpi0 40086 379905 0 0 3 0x14200 bored softnet0 11162 288065 0 0 3 0x14200 bored systqmp 9766 329640 0 0 3 0x14200 bored systq 49732 34745 0 0 2 0x40014200 softclock 7239 408368 0 0 3 0x40014200 idle0 1 83090 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10163 11041K 11058K 166960K 11254 0 pcb 17 12K 12K 166960K 25 0 rtable 254 8K 8K 166960K 391 0 pf 30 12K 12K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 53 0 sysctl 4 1K 9K 166960K 8 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 29 0 iov 0 0K 16K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1364 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 3 0K 0K 166960K 3 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 435 0 proc 59 59K 124K 166960K 476 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 5 0 in_multi 99 7K 7K 166960K 99 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 31 148K 148K 166960K 31 0 exec 0 0K 1K 166960K 357 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 191 158K 167K 166960K 5195 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 39 78K 96K 166960K 1503 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 11 0K 2K 166960K 27 0 temp 35 8658K 8722K 166960K 4823 0 kqueue 13 20K 22K 166960K 23 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 43 0 39 1 0 1 1 0 8 0 rtentry 136 113 0 1 4 0 4 4 0 8 0 unpcb 144 36 0 19 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 24 0 20 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 89 0 82 2 0 2 2 0 8 1 ip6q 72 2 0 0 1 0 1 1 0 8 0 ip6af 40 2 0 0 1 0 1 1 0 8 0 nd6 112 24 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 453 0 0 29 0 29 29 0 8 0 art_table 40 456 0 0 5 0 5 5 0 8 0 art_node 32 113 0 11 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1861 0 358 95 0 95 95 0 8 0 ffsino 256 1861 0 358 95 0 95 95 0 8 0 nchpl 144 2352 0 670 63 0 63 63 0 8 0 vnodes 216 1947 0 0 109 0 109 109 0 8 0 namei 1024 6243 0 6243 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 7780 0 7780 8 0 8 8 1 8 8 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 741 0 698 8 0 8 8 0 8 3 knotepl 120 10811 0 10764 2 0 2 2 0 8 0 kqueuepl 184 23 0 14 1 0 1 1 0 8 0 pipepl 304 113 0 86 3 0 3 3 0 8 0 fdescpl 448 708 0 678 5 0 5 5 0 8 1 filepl 120 1715 0 1509 7 0 7 7 0 8 0 lockfpl 104 20 0 18 1 0 1 1 0 8 0 lockfspl 48 11 0 9 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 104 72 0 61 1 0 1 1 0 8 0 zombiepl 144 698 0 698 1 0 1 1 0 8 1 processpl 1152 741 0 698 5 0 5 5 0 8 1 procpl 664 1043 0 996 6 0 6 6 0 8 2 sockpl 552 171 0 143 3 0 3 3 0 8 0 mcl64k 65536 6 0 6 1 0 1 1 0 8 1 mcl16k 16384 6 0 6 1 0 1 1 0 8 1 mcl12k 12288 27 0 27 1 0 1 1 0 8 1 mcl9k 9216 38 0 38 1 0 1 1 0 8 1 mcl8k 8192 219 0 219 1 0 1 1 0 8 1 mcl4k 4096 3032 0 2981 15 0 15 15 0 8 8 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 219 0 215 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 6856 0 6703 11 0 11 11 0 8 0 bufpl 280 2548 0 118 174 0 174 174 0 8 0 anonpl 24 117394 0 114755 23 0 23 23 0 187 4 amapchunkpl 152 15911 0 15563 17 0 17 17 0 158 3 amappl16 200 2037 0 2020 5 0 5 5 0 8 4 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 5 0 5 1 0 1 1 0 8 1 amappl13 176 404 0 403 1 0 1 1 0 8 0 amappl12 168 1042 0 1006 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 0 1 1 0 8 1 amappl10 152 43 0 33 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 0 1 1 0 8 1 amappl8 136 33 0 32 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 261 0 250 1 0 1 1 0 8 0 amappl5 112 117 0 110 1 0 1 1 0 8 0 amappl4 104 384 0 362 1 0 1 1 0 8 0 amappl3 96 2760 0 2695 3 0 3 3 0 8 1 amappl2 88 819 0 754 2 0 2 2 0 8 0 amappl1 80 10046 0 9508 14 0 14 14 0 8 2 amappl 88 4472 0 4350 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 708 0 678 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 708 0 678 1 0 1 1 0 8 0 vmmpekpl 168 6780 0 6750 2 0 2 2 0 8 0 vmmpepl 168 50187 0 48462 78 0 78 78 0 357 3 vmsppl 368 707 0 678 4 0 4 4 0 8 1 rwobjpl 40 15579 0 14714 11 0 11 11 0 8 0 pdppl 4096 1423 0 1356 97 30 67 83 0 8 0 pvpl 32 287395 0 279969 67 0 67 67 0 265 4 pmappl 216 707 0 678 3 0 3 3 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 368 0 30 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff800039d1b2e0,0,ffff800039d1b250,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000149c400,ffff800039d1b388,ffff800039d1b2e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb31500,ffff800010fdc8b0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdc8b0,fffffd807eb31500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc8b0,0,ffff800039d1b538,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c986d20,3,ffff800039d1b630,808,ffff800039d1b6d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c986d20,ffff800039d1b780,ffff800039d1b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff800039d1b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800039d1b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1c8cb55b490, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff80000019f058,1,fffffd806bff09a8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff800039d1b2e0,0,ffff800039d1b250,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000149c400,ffff800039d1b388,ffff800039d1b2e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd807eb31500,ffff800010fdc8b0) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdc8b0,fffffd807eb31500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc8b0,0,ffff800039d1b538,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c986d20,3,ffff800039d1b630,808,ffff800039d1b6d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c986d20,ffff800039d1b780,ffff800039d1b6d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff800039d1b780) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800039d1b780) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1c8cb55b490, count: -10