uvm_fault(0xffffffff8392d228, 0xffff8000016310ca, 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 *280161 75420 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c92ebd0,0,ffff80003c92eb40,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000161f300,ffff80003c92ec78,ffff80003c92ebd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806c976600,ffff800010fdc238) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff800010fdc238,fffffd806c976600,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc238,0,ffff80003c92ee28,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002f0c0d10,3,ffff80003c92ef20,808,ffff80003c92efc0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002f0c0d10,ffff80003c92f070,ffff80003c92efc0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c92f070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c92f070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31deb854270, 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(0xffffffff8392d228, 0xffff8000016310ca, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c92ebd0,0,ffff80003c92eb40,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000161f300,ffff80003c92ec78,ffff80003c92ebd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806c976600,ffff800010fdc238) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff800010fdc238,fffffd806c976600,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc238,0,ffff80003c92ee28,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002f0c0d10,3,ffff80003c92ef20,808,ffff80003c92efc0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002f0c0d10,ffff80003c92f070,ffff80003c92efc0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c92f070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c92f070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31deb854270, count: -10 ddb> show registers rdi 0xffff80002f0c2000 rsi 0x649 rbp 0xffff80003c92ea20 rbx 0xde rdx 0xffff80002f0c2000 rcx 0xffff800001630fe0 rax 0xfffffd806c976fe0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x10c05549717395fa r11 0x1600582494e67a96 r12 0x1d r13 0xfffffd806c976f00 r14 0xfffffd807018fe78 r15 0xffff8000002a2058 rip 0xffffffff82c05504 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c92e9a0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=280161 pid=75420 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f0c1770,0xffffffff83a5e108 process=0xffff8000ffff9b18 user=0xffff80003c92a000, vmspace=0xfffffd806cca4748 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 75420 159392 95671 0 2 0 syz-executor *75420 280161 95671 0 7 0x4000000 syz-executor 79791 271658 27447 0 2 0 syz-executor 79791 376922 27447 0 3 0x4000080 fsleep syz-executor 73437 26835 28035 0 2 0 syz-executor 73437 396511 28035 0 3 0x4000080 fsleep syz-executor 1592 428534 25730 0 2 0 syz-executor 1592 302953 25730 0 3 0x4000080 fsleep syz-executor 72864 115266 57949 0 2 0 syz-executor 72864 162734 57949 0 3 0x4000080 fsleep syz-executor 46737 300006 5756 60929 2 0x10 syz-executor 46737 415729 5756 60929 3 0x4000090 fsleep syz-executor 56942 48358 76001 0 2 0 syz-executor 56942 399578 76001 0 3 0x4000080 fsleep syz-executor 27447 355027 34872 0 3 0x82 nanoslp syz-executor 76001 361216 34872 0 2 0xc82 syz-executor 57949 256441 34872 0 2 0xc82 syz-executor 5756 507651 34872 0 2 0xc82 syz-executor 25730 374743 34872 0 2 0xc82 syz-executor 95671 56881 34872 0 3 0x82 nanoslp syz-executor 16975 402164 34872 0 2 0x2 syz-executor 28035 331632 34872 0 3 0x82 nanoslp syz-executor 34872 346130 35232 0 2 0x2 syz-executor 35232 106439 20769 0 3 0x10008a sigsusp ksh 20769 426381 72946 0 3 0x98 kqread sshd-session 72946 144357 6908 0 3 0x92 kqread sshd-session 2171 257383 1 0 3 0x100083 ttyin getty 6908 105457 1 0 3 0x88 kqread sshd 48400 35211 41006 73 2 0x1100090 syslogd 41006 341458 1 0 3 0x100082 sbwait syslogd 94438 388929 1 0 3 0x100080 kqread resolvd 39496 378820 95731 77 3 0x100092 kqread dhcpleased 83303 466955 95731 77 3 0x100092 kqread dhcpleased 95731 484234 1 0 3 0x80 kqread dhcpleased 99428 412777 0 0 3 0x14200 bored smr 49349 328075 0 0 2 0x14200 zerothread 75216 451923 0 0 3 0x14200 aiodoned aiodoned 39377 462937 0 0 3 0x14200 syncer update 60237 496997 0 0 3 0x14200 cleaner cleaner 70517 480568 0 0 3 0x14200 reaper reaper 23750 229319 0 0 3 0x14200 pgdaemon pagedaemon 67208 109782 0 0 3 0x14200 bored viomb 1719 495011 0 0 3 0x40014200 acpi0 acpi0 18822 139121 0 0 3 0x14200 bored softnet0 75486 44727 0 0 3 0x14200 bored systqmp 74221 369498 0 0 3 0x14200 bored systq 28868 149961 0 0 3 0x40014200 tmoslp softclock 73824 136729 0 0 3 0x40014200 idle0 1 412529 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 11034 12109K 12370K 166960K 12474 0 pcb 19 15K 17K 166960K 132 0 rtable 271 9K 9K 166960K 412 0 pf 32 13K 17K 166960K 64 0 ifaddr 43 7K 8K 166960K 51 0 ifgroup 50 2K 2K 166960K 68 0 sysctl 3 1K 9K 166960K 9 0 counters 33 17K 18K 166960K 39 0 ioctlops 0 0K 4K 166960K 68 0 iov 0 0K 16K 166960K 15 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1358 85K 86K 166960K 1657 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 81K 166960K 316 0 sigio 0 0K 0K 166960K 5 0 proc 60 59K 83K 166960K 515 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 21 0 in_multi 103 7K 7K 166960K 115 0 ether_multi 1 0K 0K 166960K 5 0 mrt 0 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 377 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 209 142K 158K 166960K 4497 0 UVM aobj 10 4K 4K 166960K 12 0 pinsyscall 38 76K 89K 166960K 1400 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 11 0K 2K 166960K 32 0 temp 42 9072K 9136K 166960K 8329 0 kqueue 14 22K 25K 166960K 50 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 51 0 47 1 0 1 1 0 8 0 rtentry 136 120 0 4 5 0 5 5 0 8 0 unpcb 144 242 0 225 4 0 4 4 0 8 3 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 91 0 87 4 0 4 4 0 8 3 arp 96 19 0 0 1 0 1 1 0 8 0 inpcb 328 388 0 377 7 0 7 7 0 8 5 nd6 112 27 0 1 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 2 0 2 1 0 1 1 0 8 1 pppxif 1416 2 0 2 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfstkey 128 4 0 4 1 0 1 1 0 8 1 pfstate 384 2 0 2 1 0 1 1 0 8 1 pfrule 1360 6 0 6 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 466 0 8 30 0 30 30 0 8 1 art_table 40 469 0 8 5 0 5 5 0 8 0 art_node 32 120 0 14 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 9 0 2 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1923 0 463 92 0 92 92 0 8 0 ffsino 256 1923 0 463 92 0 92 92 0 8 0 nchpl 144 2374 0 679 63 0 63 63 0 8 0 vnodes 216 2192 0 0 122 0 122 122 0 8 0 namei 1024 7401 0 7401 1 0 1 1 0 8 1 kstatmem 264 31 0 8 2 0 2 2 0 8 0 scxspl 216 7269 0 7269 3 0 3 3 1 8 3 plimitpl 152 80 0 63 1 0 1 1 0 8 0 sigapl 424 607 0 565 6 0 6 6 0 8 1 knotepl 120 10287 0 10239 10 0 10 10 0 8 8 kqueuepl 184 127 0 117 4 0 4 4 0 8 3 pipepl 304 138 0 110 3 0 3 3 0 8 0 fdescpl 448 594 0 565 4 0 4 4 0 8 0 filepl 120 3063 0 2844 11 0 11 11 0 8 3 lockfpl 104 61 0 58 1 0 1 1 0 8 0 lockfspl 48 31 0 28 1 0 1 1 0 8 0 sessionpl 144 33 0 25 1 0 1 1 0 8 0 pgrppl 48 43 0 27 1 0 1 1 0 8 0 ucredpl 104 502 0 490 1 0 1 1 0 8 0 zombiepl 144 565 0 565 1 0 1 1 0 8 1 processpl 1152 607 0 565 4 0 4 4 0 8 0 procpl 664 887 0 838 5 0 5 5 0 8 0 sockpl 552 691 0 659 12 0 12 12 0 8 9 mcl64k 65536 44 0 44 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2726 0 2673 15 0 15 15 0 8 7 mcl2k 2048 266 0 265 1 0 1 1 0 8 0 mtagpl 96 72 0 5 2 0 2 2 0 8 0 mbufpl 256 6114 0 5865 16 0 16 16 0 8 0 bufpl 280 2475 0 102 170 0 170 170 0 8 0 anonpl 24 133047 0 125811 69 0 69 69 0 187 23 amapchunkpl 152 14481 0 14025 31 0 31 31 0 158 12 amappl16 200 2794 0 2529 31 4 27 27 0 8 13 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 411 0 410 1 0 1 1 0 8 0 amappl13 176 109 0 99 1 0 1 1 0 8 0 amappl12 168 830 0 802 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 66 0 55 1 0 1 1 0 8 0 amappl9 144 251 0 251 1 0 1 1 0 8 1 amappl8 136 106 0 105 1 0 1 1 0 8 0 amappl7 128 142 0 130 1 0 1 1 0 8 0 amappl6 120 160 0 159 1 0 1 1 0 8 0 amappl5 112 91 0 84 1 0 1 1 0 8 0 amappl4 104 258 0 242 1 0 1 1 0 8 0 amappl3 96 2525 0 2421 3 0 3 3 0 8 0 amappl2 88 501 0 446 2 0 2 2 0 8 0 amappl1 80 9808 0 9258 13 0 13 13 0 8 1 amappl 88 3790 0 3642 4 0 4 4 0 92 0 uvmvnodes 80 106 0 0 3 0 3 3 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 11 0 2 1 0 1 1 0 8 0 uaddrrnd 24 594 0 565 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 594 0 565 1 0 1 1 0 8 0 vmmpekpl 168 6242 0 6207 2 0 2 2 0 8 0 vmmpepl 168 45523 0 43528 100 0 100 100 0 357 10 vmsppl 368 593 0 565 4 0 4 4 0 8 1 rwobjpl 40 15951 0 14770 15 0 15 15 0 8 2 pdppl 4096 1194 0 1130 92 26 66 74 0 8 2 pvpl 32 299340 0 285556 151 0 151 151 0 265 38 pmappl 216 593 0 565 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 365 0 26 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c92ebd0,0,ffff80003c92eb40,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000161f300,ffff80003c92ec78,ffff80003c92ebd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806c976600,ffff800010fdc238) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff800010fdc238,fffffd806c976600,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc238,0,ffff80003c92ee28,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002f0c0d10,3,ffff80003c92ef20,808,ffff80003c92efc0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002f0c0d10,ffff80003c92f070,ffff80003c92efc0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c92f070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c92f070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31deb854270, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd807018fe78) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c92ebd0,0,ffff80003c92eb40,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff80000161f300,ffff80003c92ec78,ffff80003c92ebd0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffffd806c976600,ffff800010fdc238) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff800010fdc238,fffffd806c976600,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdc238,0,ffff80003c92ee28,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002f0c0d10,3,ffff80003c92ef20,808,ffff80003c92efc0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002f0c0d10,ffff80003c92f070,ffff80003c92efc0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c92f070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c92f070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31deb854270, count: -10