uvm_fault(0xffffffff838963f8, 0xffff80000149906a, 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 *404220 71587 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c983610,0,ffff80003c983580,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001496c00,ffff80003c9836b8,ffff80003c983610,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806eb14400,ffff800001484238) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001484238,fffffd806eb14400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001484238,0,ffff80003c983868,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81f4d8,3,ffff80003c983960,808,ffff80003c983a00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81f4d8,ffff80003c983ab0,ffff80003c983a00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c983ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c983ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fab5865840, 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(0xffffffff838963f8, 0xffff80000149906a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c983610,0,ffff80003c983580,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001496c00,ffff80003c9836b8,ffff80003c983610,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806eb14400,ffff800001484238) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001484238,fffffd806eb14400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001484238,0,ffff80003c983868,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81f4d8,3,ffff80003c983960,808,ffff80003c983a00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81f4d8,ffff80003c983ab0,ffff80003c983a00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c983ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c983ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fab5865840, count: -10 ddb> show registers rdi 0xffff80003393c000 rsi 0x94a rbp 0xffff80003c983460 rbx 0xde rdx 0xffff80003393c000 rcx 0xffff800001498f80 rax 0xfffffd806eb146e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x8fa768d85e0d8e12 r11 0x4b7fa1967613eea r12 0x1a r13 0xfffffd806eb14600 r14 0xfffffd806ba46348 r15 0xffff800000039058 rip 0xffffffff8142e184 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9833e0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=404220 pid=71587 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=60, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a81fca0,0xffff80002a81f780 process=0xffff8000ffffa898 user=0xffff80003c97e000, vmspace=0xfffffd806ba56010 estcpu=10, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 60421 242348 18895 0 2 0 syz-executor 32669 366480 58366 0 2 0 syz-executor 32669 433462 58366 0 3 0x4000080 fsleep syz-executor 71587 232477 42728 0 2 0 syz-executor *71587 404220 42728 0 7 0x4000000 syz-executor 97102 114564 75370 0 2 0 syz-executor 97102 497079 75370 0 3 0x4000080 fsleep syz-executor 97102 210567 75370 0 3 0x4000080 fsleep syz-executor 97102 95269 75370 0 3 0x4000080 fsleep syz-executor 92794 439754 24258 0 2 0 syz-executor 92794 478714 24258 0 3 0x4000080 fsleep syz-executor 33538 4304 55401 60929 2 0x10 syz-executor 33538 117235 55401 60929 3 0x4000090 fsleep syz-executor 33538 82950 55401 60929 3 0x4000090 fsleep syz-executor 33538 502690 55401 60929 3 0x4000090 fsleep syz-executor 70223 59866 22401 0 2 0 syz-executor 70223 263270 22401 0 3 0x4000080 fsleep syz-executor 35555 220029 36436 0 2 0 syz-executor 35555 495410 36436 0 3 0x4000080 fsleep syz-executor 58366 288864 73440 0 3 0x82 nanoslp syz-executor 18895 111419 73440 0 2 0x2 syz-executor 36436 70111 73440 0 3 0x82 nanoslp syz-executor 42728 427088 73440 0 3 0x82 nanoslp syz-executor 55401 440903 73440 0 3 0x82 nanoslp syz-executor 75370 408892 73440 0 3 0x82 nanoslp syz-executor 24258 333143 73440 0 3 0x82 nanoslp syz-executor 22401 46461 73440 0 3 0x82 nanoslp syz-executor 73440 397740 99597 0 3 0x82 kqread syz-executor 99597 327714 95779 0 3 0x10008a sigsusp ksh 95779 414683 66164 0 3 0x98 kqread sshd-session 66164 449236 46297 0 3 0x92 kqread sshd-session 10237 237699 1 0 3 0x100083 ttyin getty 46297 143158 1 0 3 0x88 kqread sshd 58206 388797 63273 73 3 0x1100090 kqread syslogd 63273 287410 1 0 3 0x100082 sbwait syslogd 18950 469629 1 0 3 0x100080 kqread resolvd 79391 330371 22684 77 3 0x100092 kqread dhcpleased 36210 132455 22684 77 3 0x100092 kqread dhcpleased 22684 427923 1 0 3 0x80 kqread dhcpleased 14685 228348 0 0 3 0x14200 bored smr 96234 335196 0 0 2 0x14200 zerothread 74112 287310 0 0 3 0x14200 aiodoned aiodoned 22814 320528 0 0 3 0x14200 syncer update 17247 101744 0 0 3 0x14200 cleaner cleaner 81413 367269 0 0 3 0x14200 reaper reaper 23460 269261 0 0 3 0x14200 pgdaemon pagedaemon 61361 209009 0 0 3 0x14200 bored viomb 8153 500566 0 0 3 0x40014200 acpi0 acpi0 56115 154611 0 0 3 0x14200 bored softnet7 52535 339886 0 0 3 0x14200 bored softnet6 7896 519469 0 0 3 0x14200 bored softnet5 26426 476667 0 0 3 0x14200 bored softnet4 75518 218082 0 0 3 0x14200 bored softnet3 60993 101220 0 0 3 0x14200 bored softnet2 39488 145799 0 0 3 0x14200 bored softnet1 98238 411109 0 0 3 0x14200 bored softnet0 71123 149713 0 0 3 0x14200 smrbar systqmp 44538 283976 0 0 3 0x14200 bored systq 80205 14722 0 0 3 0x40014200 tmoslp softclock 40631 425990 0 0 3 0x40014200 idle0 1 332025 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 10174 11057K 11057K 166960K 11251 0 pcb 17 12K 12K 166960K 17 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 58 59K 124K 166960K 473 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 2 0K 0K 166960K 2 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 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 345 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 215 150K 160K 166960K 2915 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 6 0 2 1 0 1 1 0 8 0 arp 96 10 0 0 1 0 1 1 0 8 0 inpcb 328 57 0 47 2 0 2 2 0 8 1 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 256 437 0 0 28 0 28 28 0 8 0 art_table 40 439 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 1548 0 42 95 0 95 95 0 8 0 ffsino 256 1548 0 42 95 0 95 95 0 8 0 nchpl 144 1730 0 45 63 0 63 63 0 8 0 uvmvnodes 80 1630 0 0 34 0 34 34 0 8 0 vnodes 216 1630 0 0 91 0 91 91 0 8 0 namei 1024 5042 0 5042 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6172 0 6172 8 0 8 8 1 8 8 plimitpl 152 26 0 10 1 0 1 1 0 8 0 sigapl 424 419 0 369 7 0 7 7 0 8 1 knotepl 120 3001 0 2954 2 0 2 2 0 8 0 kqueuepl 184 17 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 1274 0 1062 7 0 7 7 0 8 0 lockfpl 104 7 0 4 1 0 1 1 0 8 0 lockfspl 48 5 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 65 0 53 1 0 1 1 0 8 0 zombiepl 144 369 0 369 1 0 1 1 0 8 1 processpl 1152 419 0 369 5 0 5 5 0 8 1 procpl 664 430 0 369 6 0 6 6 0 8 0 sockpl 552 127 0 96 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2434 0 2379 14 0 14 14 0 8 5 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 3724 0 3589 9 0 9 9 0 8 0 bufpl 280 2811 0 117 193 0 193 193 0 8 0 anonpl 24 96940 0 93943 23 0 23 23 0 187 3 amapchunkpl 152 8106 0 7650 18 0 18 18 0 158 0 amappl16 200 1829 0 1815 5 0 5 5 0 8 4 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 105 0 95 1 0 1 1 0 8 0 amappl13 176 6 0 5 1 0 1 1 0 8 0 amappl12 168 1005 0 976 3 0 3 3 0 8 1 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 28 0 28 1 0 1 1 0 8 1 amappl9 144 247 0 247 1 0 1 1 0 8 1 amappl8 136 39 0 38 1 0 1 1 0 8 0 amappl7 128 96 0 85 1 0 1 1 0 8 0 amappl6 120 169 0 166 1 0 1 1 0 8 0 amappl5 112 137 0 130 1 0 1 1 0 8 0 amappl4 104 274 0 259 1 0 1 1 0 8 0 amappl3 96 1170 0 1083 3 0 3 3 0 8 0 amappl2 88 630 0 560 2 0 2 2 0 8 0 amappl1 80 7829 0 7279 13 0 13 13 0 8 0 amappl 88 2288 0 2136 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 4718 0 4694 2 0 2 2 0 8 0 vmmpepl 168 32341 0 30502 82 0 82 82 0 357 1 vmsppl 368 398 0 369 4 0 4 4 0 8 1 rwobjpl 40 13500 0 11053 26 0 26 26 0 8 0 pdppl 4096 804 0 738 94 12 82 82 0 8 16 pvpl 32 206026 0 197875 68 0 68 68 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 112 358 0 12 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c983610,0,ffff80003c983580,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001496c00,ffff80003c9836b8,ffff80003c983610,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806eb14400,ffff800001484238) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001484238,fffffd806eb14400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001484238,0,ffff80003c983868,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81f4d8,3,ffff80003c983960,808,ffff80003c983a00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81f4d8,ffff80003c983ab0,ffff80003c983a00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c983ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c983ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fab5865840, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba46348) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c983610,0,ffff80003c983580,16) at rtrequest+0xf08 sys/net/route.c:1115 rtm_output(ffff800001496c00,ffff80003c9836b8,ffff80003c983610,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806eb14400,ffff800001484238) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001484238,fffffd806eb14400,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001484238,0,ffff80003c983868,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a81f4d8,3,ffff80003c983960,808,ffff80003c983a00) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a81f4d8,ffff80003c983ab0,ffff80003c983a00) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c983ab0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c983ab0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9fab5865840, count: -10