uvm_fault(0xffffffff83923328, 0xffff80000149802a, 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 *182029 21849 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c57b190,0,ffff80003c57b100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495c00,ffff80003c57b238,ffff80003c57b190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806cd14b00,ffff800001405c08) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800001405c08,fffffd806cd14b00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001405c08,0,ffff80003c57b3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7f9ca8,3,ffff80003c57b4e0,808,ffff80003c57b580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7f9ca8,ffff80003c57b630,ffff80003c57b580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff80003c57b630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c57b630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x47559364df0, 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(0xffffffff83923328, 0xffff80000149802a, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c57b190,0,ffff80003c57b100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495c00,ffff80003c57b238,ffff80003c57b190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806cd14b00,ffff800001405c08) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800001405c08,fffffd806cd14b00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001405c08,0,ffff80003c57b3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7f9ca8,3,ffff80003c57b4e0,808,ffff80003c57b580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7f9ca8,ffff80003c57b630,ffff80003c57b580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff80003c57b630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c57b630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x47559364df0, count: -10 ddb> show registers rdi 0xffff800038152000 rsi 0x92f rbp 0xffff80003c57afe0 rbx 0xde rdx 0xffff800038152000 rcx 0xffff800001497f40 rax 0xfffffd806cd141e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x63c7bb31ab66a08e r11 0x495c534b059ebc16 r12 0x19 r13 0xfffffd806cd14100 r14 0xfffffd806ba2c898 r15 0xffff800000039058 rip 0xffffffff81e9e627 arp_rtrequest+0x657 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c57af60 ss 0x10 arp_rtrequest+0x657: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=182029 pid=21849 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=0xffff80002a822d10,0xffff80002a7f82c8 process=0xffff80003c98a010 user=0xffff80003c576000, vmspace=0xfffffd806bf06010 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 54421 295870 56838 0 2 0 syz-executor 17107 284582 73921 0 2 0 syz-executor 17107 211747 73921 0 3 0x4000080 fsleep syz-executor 79668 363620 88216 0 2 0 syz-executor 5295 291998 76607 0 2 0 syz-executor 5295 410115 76607 0 3 0x4000080 fsleep syz-executor 75011 151206 41307 0 2 0x10 syz-executor 75011 367439 41307 0 3 0x4000090 fsleep syz-executor 21849 185409 5345 0 2 0 syz-executor *21849 182029 5345 0 7 0x4000000 syz-executor 13324 393270 60175 0 2 0 syz-executor 13324 151586 60175 0 3 0x4000080 fsleep syz-executor 75251 118945 92007 0 2 0 syz-executor 75251 170808 92007 0 2 0x4000000 syz-executor 5345 322591 6503 0 3 0x82 nanoslp syz-executor 73921 324543 6503 0 2 0xc82 syz-executor 88216 77107 6503 0 2 0xc82 syz-executor 76607 161005 6503 0 3 0x82 nanoslp syz-executor 56838 425245 6503 0 3 0x82 nanoslp syz-executor 41307 59834 6503 0 3 0x82 nanoslp syz-executor 92007 330272 6503 0 3 0x82 nanoslp syz-executor 60175 149870 6503 0 2 0xc82 syz-executor 6503 135450 79547 0 2 0x2 syz-executor 79547 221665 64598 0 3 0x10008a sigsusp ksh 64598 22123 57773 0 3 0x98 kqread sshd-session 57773 498653 11925 0 3 0x92 kqread sshd-session 92768 339362 1 0 3 0x100083 ttyin getty 11925 346713 1 0 3 0x88 kqread sshd 70211 199119 79914 73 3 0x1100090 kqread syslogd 79914 221845 1 0 3 0x100082 sbwait syslogd 11371 182509 1 0 3 0x100080 kqread resolvd 55906 426112 49028 77 3 0x100092 kqread dhcpleased 55338 338728 49028 77 3 0x100092 kqread dhcpleased 49028 488428 1 0 3 0x80 kqread dhcpleased 91256 267573 0 0 3 0x14200 bored smr 2991 273394 0 0 2 0x14200 zerothread 72821 284707 0 0 3 0x14200 aiodoned aiodoned 86558 220737 0 0 3 0x14200 syncer update 98425 137354 0 0 3 0x14200 cleaner cleaner 27758 366177 0 0 3 0x14200 reaper reaper 35352 190940 0 0 3 0x14200 pgdaemon pagedaemon 48559 269711 0 0 3 0x14200 bored viomb 60481 194587 0 0 3 0x40014200 acpi0 acpi0 456 351833 0 0 3 0x14200 bored softnet7 39106 74964 0 0 3 0x14200 bored softnet6 79126 455167 0 0 3 0x14200 bored softnet5 90862 387198 0 0 3 0x14200 bored softnet4 54018 473186 0 0 3 0x14200 bored softnet3 39234 141582 0 0 3 0x14200 bored softnet2 71972 328897 0 0 3 0x14200 bored softnet1 58995 53479 0 0 2 0x14200 softnet0 48919 256695 0 0 3 0x14200 smrbar systqmp 13065 223070 0 0 3 0x14200 bored systq 95163 313096 0 0 3 0x40014200 tmoslp softclock 4117 64026 0 0 3 0x40014200 idle0 1 82224 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 18 0 rtable 214 7K 7K 166960K 272 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 30 0 iov 0 0K 0K 166960K 1 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1335 84K 84K 166960K 1351 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 139 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 ip_moptions 0 0K 0K 166960K 4 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 341 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 204 142K 152K 166960K 2681 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 39 78K 96K 166960K 1151 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 27 2K 2K 166960K 27 0 temp 33 8630K 8694K 166960K 3624 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 36 0 32 1 0 1 1 0 8 0 rtentry 136 96 0 1 4 0 4 4 0 8 0 unpcb 144 32 0 16 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 9 0 2 1 0 1 1 0 8 0 arp 88 10 0 0 1 0 1 1 0 8 0 inpcb 328 59 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 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 1546 0 41 95 0 95 95 0 8 0 ffsino 256 1546 0 41 95 0 95 95 0 8 0 nchpl 144 1731 0 48 63 0 63 63 0 8 0 uvmvnodes 80 1628 0 0 34 0 34 34 0 8 0 vnodes 216 1628 0 0 91 0 91 91 0 8 0 namei 1024 5028 0 5028 2 0 2 2 0 8 2 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 6236 0 6236 8 0 8 8 1 8 8 plimitpl 152 28 0 11 1 0 1 1 0 8 0 sigapl 424 417 0 367 7 0 7 7 0 8 1 knotepl 120 3208 0 3161 2 0 2 2 0 8 0 kqueuepl 184 17 0 8 1 0 1 1 0 8 0 pipepl 304 97 0 70 3 0 3 3 0 8 0 fdescpl 448 397 0 367 5 0 5 5 0 8 1 filepl 120 1271 0 1055 7 0 7 7 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 68 0 56 1 0 1 1 0 8 0 zombiepl 144 367 0 367 1 0 1 1 0 8 1 processpl 1168 417 0 367 5 0 5 5 0 8 1 procpl 664 424 0 368 5 0 5 5 0 8 0 sockpl 552 127 0 95 3 0 3 3 0 8 0 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2416 0 2363 14 0 14 14 0 8 5 mcl2k 2048 147 0 146 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 3715 0 3583 9 0 9 9 0 8 0 bufpl 280 2820 0 117 194 0 194 194 0 8 0 anonpl 24 61077 0 58162 23 0 23 23 0 187 3 amapchunkpl 152 7092 0 6672 17 0 17 17 0 158 0 amappl16 200 383 0 371 3 0 3 3 0 8 2 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 130 0 120 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 0 1 1 0 8 1 amappl12 168 993 0 965 2 0 2 2 0 8 0 amappl11 160 41 0 31 1 0 1 1 0 8 0 amappl10 152 2 0 2 1 0 1 1 0 8 1 amappl9 144 255 0 255 1 0 1 1 0 8 1 amappl8 136 16 0 15 1 0 1 1 0 8 0 amappl7 128 89 0 79 1 0 1 1 0 8 0 amappl6 120 180 0 177 1 0 1 1 0 8 0 amappl5 112 110 0 103 1 0 1 1 0 8 0 amappl4 104 271 0 256 1 0 1 1 0 8 0 amappl3 96 1139 0 1044 3 0 3 3 0 8 0 amappl2 88 607 0 554 2 0 2 2 0 8 0 amappl1 80 7751 0 7202 13 0 13 13 0 8 0 amappl 88 2060 0 1918 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 397 0 367 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 397 0 367 1 0 1 1 0 8 0 vmmpekpl 168 4687 0 4662 2 0 2 2 0 8 0 vmmpepl 168 30614 0 28819 79 0 79 79 0 357 0 vmsppl 368 396 0 367 4 0 4 4 0 8 1 rwobjpl 40 11855 0 9422 26 0 26 26 0 8 0 pdppl 4096 801 0 734 97 14 83 83 0 8 16 pvpl 32 169400 0 161333 67 0 67 67 0 265 1 pmappl 216 396 0 367 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 366 0 14 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c57b190,0,ffff80003c57b100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495c00,ffff80003c57b238,ffff80003c57b190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806cd14b00,ffff800001405c08) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800001405c08,fffffd806cd14b00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001405c08,0,ffff80003c57b3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7f9ca8,3,ffff80003c57b4e0,808,ffff80003c57b580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7f9ca8,ffff80003c57b630,ffff80003c57b580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff80003c57b630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c57b630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x47559364df0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806ba2c898) at arp_rtrequest+0x657 sys/netinet/if_ether.c:182 rtrequest(1,ffff80003c57b190,0,ffff80003c57b100,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff800001495c00,ffff80003c57b238,ffff80003c57b190,0,16) at rtm_output+0x91a sys/net/rtsock.c:970 route_output(fffffd806cd14b00,ffff800001405c08) at route_output+0xa2b sys/net/rtsock.c:875 route_send(ffff800001405c08,fffffd806cd14b00,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff800001405c08,0,ffff80003c57b3e8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7f9ca8,3,ffff80003c57b4e0,808,ffff80003c57b580) at sendit+0x5a5 sys/kern/uipc_syscalls.c:782 sys_sendto(ffff80002a7f9ca8,ffff80003c57b630,ffff80003c57b580) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:560 syscall(ffff80003c57b630) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c57b630) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x47559364df0, count: -10