uvm_fault(0xffffffff8383eb50, 0xffff80000149904a, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x657: movzwl 0xc(%rcx,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND *420856 15285 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff800038967760,0,ffff8000389676d0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001496e00,ffff800038967808,ffff800038967760,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806ba5c200,ffff80000141bc10) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff80000141bc10,fffffd806ba5c200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000141bc10,0,ffff8000389679b8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7ff248,3,ffff800038967ab0,808,ffff800038967b50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7ff248,ffff800038967c00,ffff800038967b50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff800038967c00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038967c00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca795e2ed80, 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(0xffffffff8383eb50, 0xffff80000149904a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff800038967760,0,ffff8000389676d0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001496e00,ffff800038967808,ffff800038967760,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806ba5c200,ffff80000141bc10) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff80000141bc10,fffffd806ba5c200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000141bc10,0,ffff8000389679b8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7ff248,3,ffff800038967ab0,808,ffff800038967b50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7ff248,ffff800038967c00,ffff800038967b50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff800038967c00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038967c00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca795e2ed80, count: -10 ddb> show registers rdi 0xffff80003153e000 rsi 0x94a rbp 0xffff8000389675b0 rbx 0xde rdx 0xffff80003153e000 rcx 0xffff800001498f60 rax 0xfffffd806ba5c8e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xb2583bf3451aae8f r11 0x38bbe94f1fac9fa0 r12 0x1b r13 0xfffffd806ba5c800 r14 0xfffffd8073182810 r15 0xffff800000039058 rip 0xffffffff82ea3847 arp_rtrequest+0x657 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800038967530 ss 0x10 arp_rtrequest+0x657: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=420856 pid=15285 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=0xffff80002a7ff778,0xffff80002a7fe030 process=0xffff80002cd316d8 user=0xffff800038962000, vmspace=0xfffffd806bb95010 estcpu=3, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 15285 511021 15631 0 2 0 syz-executor *15285 420856 15631 0 7 0x4000000 syz-executor 68406 396429 83620 0 2 0 syz-executor 68406 106391 83620 0 3 0x4000000 biowait syz-executor 52832 175139 43226 0 2 0 syz-executor 52832 432936 43226 0 3 0x4000080 fsleep syz-executor 33775 468867 76351 0 2 0 syz-executor 33775 349818 76351 0 3 0x4000080 fsleep syz-executor 56560 300928 32098 0 2 0 syz-executor 56560 314424 32098 0 3 0x4000080 fsleep syz-executor 37080 397052 8661 0 2 0 syz-executor 37080 30602 8661 0 3 0x4000080 fsleep syz-executor 11121 478649 73633 0 2 0 syz-executor 11121 1558 73633 0 3 0x4000080 fsleep syz-executor 22452 520836 87509 0 2 0 syz-executor 22452 55041 87509 0 3 0x4000080 fsleep syz-executor 32098 318796 12862 0 3 0x82 nanoslp syz-executor 43226 212955 12862 0 3 0x82 nanoslp syz-executor 83620 314512 12862 0 3 0x82 nanoslp syz-executor 73633 84385 12862 0 3 0x82 nanoslp syz-executor 15631 28225 12862 0 3 0x82 nanoslp syz-executor 87509 347590 12862 0 3 0x82 nanoslp syz-executor 76351 148256 12862 0 3 0x82 nanoslp syz-executor 8661 252872 12862 0 3 0x82 nanoslp syz-executor 12862 148626 28890 0 3 0x82 kqread syz-executor 28890 73710 89838 0 3 0x10008a sigsusp ksh 89838 193918 46894 0 3 0x98 kqread sshd-session 46894 143346 91377 0 3 0x92 kqread sshd-session 88214 484205 1 0 3 0x100083 ttyin getty 91377 333520 1 0 3 0x88 kqread sshd 29522 13552 53526 73 3 0x1100090 kqread syslogd 53526 204917 1 0 3 0x100082 sbwait syslogd 91454 252292 1 0 3 0x100080 kqread resolvd 27389 313961 19034 77 3 0x100092 kqread dhcpleased 45946 520314 19034 77 3 0x100092 kqread dhcpleased 19034 239092 1 0 3 0x80 kqread dhcpleased 53586 68974 0 0 3 0x14200 bored smr 57994 99821 0 0 2 0x14200 zerothread 90972 199937 0 0 3 0x14200 aiodoned aiodoned 78356 510935 0 0 3 0x14200 syncer update 77150 57272 0 0 3 0x14200 cleaner cleaner 80476 523657 0 0 3 0x14200 reaper reaper 48592 137740 0 0 3 0x14200 pgdaemon pagedaemon 25392 42353 0 0 3 0x14200 bored viomb 91581 267652 0 0 3 0x40014200 acpi0 acpi0 39358 234268 0 0 3 0x14200 bored softnet7 70145 378232 0 0 3 0x14200 bored softnet6 17612 515280 0 0 3 0x14200 bored softnet5 72253 247270 0 0 3 0x14200 bored softnet4 11726 389440 0 0 3 0x14200 bored softnet3 6400 164272 0 0 3 0x14200 bored softnet2 97054 61925 0 0 3 0x14200 bored softnet1 68666 476348 0 0 3 0x14200 bored softnet0 30728 422991 0 0 3 0x14200 smrbar systqmp 89050 437474 0 0 3 0x14200 bored systq 47517 232279 0 0 3 0x40014200 tmoslp softclock 55681 33023 0 0 3 0x40014200 idle0 1 507408 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 10170 11040K 11053K 166960K 11247 0 pcb 18 12K 12K 166960K 20 0 rtable 214 7K 7K 166960K 274 0 pf 30 12K 12K 166960K 30 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 32 0 ioctlops 0 0K 2K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1337 84K 84K 166960K 1353 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 18 65K 97K 166960K 138 0 proc 57 58K 124K 166960K 472 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 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 344 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 218 150K 160K 166960K 2689 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 39 78K 96K 166960K 1160 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 27 2K 2K 166960K 27 0 temp 34 8630K 8692K 166960K 3640 0 kqueue 13 20K 20K 166960K 21 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 37 0 33 1 0 1 1 0 8 0 rtentry 136 96 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 10 0 2 1 0 1 1 0 8 0 arp 88 10 0 0 1 0 1 1 0 8 0 inpcb 328 61 0 47 2 0 2 2 0 8 0 nd6 104 16 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 256 436 0 0 28 0 28 28 0 8 0 art_table 40 438 0 0 5 0 5 5 0 8 0 art_node 32 96 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1545 0 41 95 0 95 95 0 8 0 ffsino 256 1545 0 41 95 0 95 95 0 8 0 nchpl 144 1730 0 45 63 0 63 63 0 8 0 uvmvnodes 80 1629 0 0 34 0 34 34 0 8 0 vnodes 216 1629 0 0 91 0 91 91 0 8 0 namei 1024 5052 0 5051 2 0 2 2 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6129 0 6128 8 0 8 8 1 8 7 plimitpl 152 27 0 10 1 0 1 1 0 8 0 sigapl 424 419 0 369 7 0 7 7 0 8 1 knotepl 120 3011 0 2964 2 0 2 2 0 8 0 kqueuepl 184 18 0 8 1 0 1 1 0 8 0 pipepl 304 98 0 71 3 0 3 3 0 8 0 fdescpl 448 399 0 369 5 0 5 5 0 8 1 filepl 120 1285 0 1066 7 0 7 7 0 8 0 lockfpl 104 8 0 6 1 0 1 1 0 8 0 lockfspl 48 5 0 3 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 67 0 56 1 0 1 1 0 8 0 zombiepl 144 369 0 369 1 0 1 1 0 8 1 processpl 1168 419 0 369 5 0 5 5 0 8 1 procpl 664 427 0 369 5 0 5 5 0 8 0 sockpl 552 131 0 96 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2389 0 2339 14 0 14 14 0 8 7 mcl2k 2048 148 0 147 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3682 0 3553 9 0 9 9 0 8 0 bufpl 280 2809 0 117 193 0 193 193 0 8 0 anonpl 24 90945 0 87896 22 0 22 22 0 187 2 amapchunkpl 152 7663 0 7206 18 0 18 18 0 158 0 amappl16 200 1590 0 1577 5 0 5 5 0 8 4 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 101 0 91 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 0 1 1 0 8 1 amappl12 168 1008 0 977 3 0 3 3 0 8 1 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 0 1 1 0 8 1 amappl9 144 249 0 249 1 0 1 1 0 8 1 amappl8 136 20 0 19 1 0 1 1 0 8 0 amappl7 128 105 0 95 1 0 1 1 0 8 0 amappl6 120 168 0 164 1 0 1 1 0 8 0 amappl5 112 110 0 104 1 0 1 1 0 8 0 amappl4 104 256 0 242 1 0 1 1 0 8 0 amappl3 96 1169 0 1065 3 0 3 3 0 8 0 amappl2 88 605 0 552 2 0 2 2 0 8 0 amappl1 80 7795 0 7253 13 0 13 13 0 8 1 amappl 88 2063 0 1909 4 0 4 4 0 92 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 24 399 0 369 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 399 0 369 1 0 1 1 0 8 0 vmmpekpl 168 4656 0 4633 2 0 2 2 0 8 0 vmmpepl 168 31533 0 29715 80 0 80 80 0 357 0 vmsppl 368 398 0 369 4 0 4 4 0 8 1 rwobjpl 40 13175 0 10744 26 0 26 26 0 8 1 pdppl 4096 805 0 738 95 12 83 83 0 8 16 pvpl 32 199666 0 191016 70 0 70 70 0 265 0 pmappl 216 398 0 369 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 364 0 12 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff800038967760,0,ffff8000389676d0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001496e00,ffff800038967808,ffff800038967760,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806ba5c200,ffff80000141bc10) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff80000141bc10,fffffd806ba5c200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000141bc10,0,ffff8000389679b8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7ff248,3,ffff800038967ab0,808,ffff800038967b50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7ff248,ffff800038967c00,ffff800038967b50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff800038967c00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038967c00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca795e2ed80, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073182810) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff800038967760,0,ffff8000389676d0,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001496e00,ffff800038967808,ffff800038967760,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806ba5c200,ffff80000141bc10) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff80000141bc10,fffffd806ba5c200,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff80000141bc10,0,ffff8000389679b8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7ff248,3,ffff800038967ab0,808,ffff800038967b50) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7ff248,ffff800038967c00,ffff800038967b50) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff800038967c00) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800038967c00) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xca795e2ed80, count: -10