uvm_fault(0xffffffff8391a710, 0xffff80000149c0aa, 0, 1) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx TID PID UID PRFLAGS PFLAGS CPU COMMAND * 477 30766 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff800037519398,0,ffff800037519310,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff8000014bb500,ffff800037519440,ffff800037519398,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd806b6e4400,ffff8000014f30c0) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff8000014f30c0,fffffd806b6e4400,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff8000014f30c0,0,ffff8000375195e8,0,0,808) at sosend+0x824 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7d5498,9,ffff8000375196e0,808,ffff800037519790) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7d5498,ffff800037519840,ffff800037519790) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800037519840) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800037519840) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xed2f83a4bc0, 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(0xffffffff8391a710, 0xffff80000149c0aa, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff800037519398,0,ffff800037519310,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff8000014bb500,ffff800037519440,ffff800037519398,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd806b6e4400,ffff8000014f30c0) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff8000014f30c0,fffffd806b6e4400,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff8000014f30c0,0,ffff8000375195e8,0,0,808) at sosend+0x824 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7d5498,9,ffff8000375196e0,808,ffff800037519790) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7d5498,ffff800037519840,ffff800037519790) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800037519840) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800037519840) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xed2f83a4bc0, count: -10 ddb> show registers rdi 0xffff80003190e000 rsi 0x93d rbp 0xffff8000375191e0 rbx 0xde rdx 0xffff80003190e000 rcx 0x100040600080100 rax 0xfffffd805fcee6e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x1bc03cfdfcf418bc r11 0xd9c95bd855a81f24 r12 0x21 r13 0xfffffd805fcee600 r14 0xfffffd806cb6e2b8 r15 0xffff80000149bfc0 rip 0xffffffff82f2d03e arp_rtrequest+0x65e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037519160 ss 0x10 arp_rtrequest+0x65e: movzwl 0xc(%r15,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=477 pid=30766 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=75, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7d5728,0xffff80002a7d4548 process=0xffff8000ffff9fd0 user=0xffff800037514000, vmspace=0xfffffd80710c59e8 estcpu=25, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14209 99107 99430 0 2 0 syz-executor 14209 459435 99430 0 3 0x4000080 fsleep syz-executor 19399 483398 52118 0 3 0x3000 suspend syz-executor 19399 370267 52118 0 2 0x4081000 syz-executor 19399 453184 52118 0 2 0x4081000 syz-executor 20937 398067 58773 0 2 0 syz-executor 20937 297674 58773 0 3 0x4000080 fsleep syz-executor 46372 513013 0 0 3 0x14200 bored sosplice 30766 133926 68915 0 2 0 syz-executor 30766 299486 68915 0 3 0x4000080 kqread syz-executor *30766 477 68915 0 7 0x4000000 syz-executor 72365 215573 59310 0 4 0x82000 syz-executor 72365 100840 59310 0 4 0x4082000 syz-executor 72365 48117 59310 0 4 0x4082000 syz-executor 72365 388247 59310 0 2 0x4082000 syz-executor 72365 32931 59310 0 3 0x4002000 suspend syz-executor 97313 113360 36347 0 2 0x2 syz-executor 59310 348915 36347 0 3 0x82 nanoslp syz-executor 58773 195560 36347 0 3 0x82 nanoslp syz-executor 62422 106844 36347 0 2 0x2 syz-executor 68915 490049 36347 0 3 0x82 nanoslp syz-executor 16386 340413 36347 0 2 0x2 syz-executor 52118 438488 36347 0 3 0x82 nanoslp syz-executor 99430 435135 36347 0 3 0x82 nanoslp syz-executor 36347 255428 32515 0 3 0x82 kqread syz-executor 32515 2390 40995 0 3 0x10008a sigsusp ksh 40995 422352 5617 0 3 0x98 kqread sshd-session 5617 93847 14558 0 3 0x92 kqread sshd-session 2338 181289 1 0 3 0x100083 ttyin getty 14558 41271 1 0 3 0x88 kqread sshd 75471 237046 62596 73 3 0x1100090 kqread syslogd 62596 399012 1 0 3 0x100082 sbwait syslogd 45293 9726 1 0 3 0x100080 kqread resolvd 3295 244563 15739 77 3 0x100092 kqread dhcpleased 88519 380985 15739 77 3 0x100092 kqread dhcpleased 15739 332770 1 0 3 0x80 kqread dhcpleased 67579 196950 0 0 3 0x14200 bored smr 96372 105291 0 0 2 0x14200 zerothread 82600 341626 0 0 3 0x14200 aiodoned aiodoned 91214 60880 0 0 3 0x14200 syncer update 10964 327645 0 0 3 0x14200 cleaner cleaner 12125 361575 0 0 3 0x14200 reaper reaper 70852 139643 0 0 3 0x14200 pgdaemon pagedaemon 597 15723 0 0 3 0x14200 bored viomb 34934 240737 0 0 3 0x40014200 acpi0 acpi0 41372 368062 0 0 3 0x14200 bored softnet3 35502 73710 0 0 3 0x14200 bored softnet2 23154 321990 0 0 3 0x14200 bored softnet1 48415 370796 0 0 3 0x14200 bored softnet0 84327 38275 0 0 3 0x14200 bored systqmp 40844 336270 0 0 3 0x14200 bored systq 57858 79321 0 0 2 0x40014200 softclock 44312 352572 0 0 3 0x40014200 idle0 1 379829 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 10172 11056K 11442K 166960K 11583 0 pcb 17 15K 17K 166960K 179 0 rtable 223 8K 8K 166960K 432 0 pf 29 12K 13K 166960K 41 0 ifaddr 40 7K 7K 166960K 51 0 ifgroup 46 2K 2K 166960K 61 0 sysctl 3 1K 9K 166960K 7 0 counters 31 17K 18K 166960K 38 0 ioctlops 0 0K 4K 166960K 58 0 iov 0 0K 16K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1343 84K 85K 166960K 1565 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 13 1K 1K 166960K 16 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 97K 166960K 310 0 sigio 0 0K 0K 166960K 6 0 proc 59 59K 116K 166960K 485 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 20 0 in_multi 91 6K 7K 166960K 111 0 ether_multi 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 2K 166960K 350 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 152K 166K 166960K 4282 0 UVM aobj 10 2K 3K 166960K 11 0 pinsyscall 36 72K 96K 166960K 1337 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 15 0 NDP 10 0K 2K 166960K 31 0 temp 42 8667K 8731K 166960K 4586 0 kqueue 16 26K 26K 166960K 54 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 80 0 43 2 0 2 2 0 8 0 rtentry 136 118 0 23 4 0 4 4 0 8 0 unpcb 144 130 0 111 2 1 1 2 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 61 0 57 2 0 2 2 0 8 1 arp 88 19 0 2 1 0 1 1 0 8 0 inpcb 328 319 0 311 10 6 4 7 0 8 3 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 104 26 0 3 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 5 0 5 2 1 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pfstkey 128 2 0 2 1 0 1 1 0 8 1 pfstate 384 1 0 1 1 0 1 1 0 8 1 pfrule 1344 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 494 0 85 29 0 29 29 0 8 1 art_table 32 497 0 85 4 0 4 4 0 8 0 art_node 16 117 0 33 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 11 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1916 0 422 95 0 95 95 0 8 0 ffsino 248 1916 0 422 95 0 95 95 0 8 0 nchpl 144 2326 0 653 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 2094 0 0 43 0 43 43 0 8 0 vnodes 216 2094 0 0 117 0 117 117 0 8 0 namei 1024 7319 0 7317 2 1 1 2 0 8 0 kstatmem 264 30 0 10 2 0 2 2 0 8 0 scxspl 216 7559 0 7559 10 2 8 8 1 8 8 plimitpl 152 59 0 43 1 0 1 1 0 8 0 sigapl 424 589 0 545 7 1 6 7 0 8 0 knotepl 120 9368 0 9314 10 0 10 10 0 8 8 kqueuepl 184 71 0 58 1 0 1 1 0 8 0 pipepl 296 110 0 83 3 0 3 3 0 8 0 fdescpl 440 572 0 545 5 1 4 5 0 8 0 filepl 120 2779 0 2532 11 2 9 9 0 8 1 lockfpl 104 100 0 98 1 0 1 1 0 8 0 lockfspl 48 49 0 47 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 104 437 0 426 1 0 1 1 0 8 0 zombiepl 144 546 0 545 2 1 1 1 0 8 0 processpl 1160 589 0 545 4 0 4 4 0 8 0 procpl 656 851 0 797 7 1 6 6 0 8 0 sockpl 528 534 0 470 10 5 5 7 0 8 0 mcl64k 65536 10 0 10 2 1 1 1 0 8 1 mcl8k 8192 7 0 7 2 1 1 1 0 8 1 mcl4k 4096 2665 0 2615 16 8 8 15 0 8 1 mcl2k 2048 505 0 501 2 1 1 1 0 8 0 mtagpl 96 16 0 4 1 0 1 1 0 8 0 mbufpl 256 5827 0 5643 13 0 13 13 0 8 1 bufpl 280 2670 0 117 183 0 183 183 0 8 0 anonpl 24 105573 0 102541 34 1 33 33 0 187 10 amapchunkpl 152 13953 0 13323 38 5 33 33 0 158 6 amappl16 200 1676 0 1651 5 2 3 5 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 107 0 97 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 1182 0 1155 3 1 2 3 0 8 0 amappl11 160 70 0 59 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 1 0 1 0 8 0 amappl9 144 254 0 254 1 1 0 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 110 0 100 1 0 1 1 0 8 0 amappl6 120 167 0 164 1 0 1 1 0 8 0 amappl5 112 111 0 104 1 0 1 1 0 8 0 amappl4 104 286 0 269 1 0 1 1 0 8 0 amappl3 96 2302 0 2204 4 1 3 4 0 8 0 amappl2 88 609 0 553 2 0 2 2 0 8 0 amappl1 80 8702 0 8169 14 1 13 14 0 8 1 amappl 88 3614 0 3464 5 1 4 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 10 0 1 1 0 1 1 0 8 0 uaddrrnd 24 572 0 545 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 572 0 545 1 0 1 1 0 8 0 vmmpekpl 168 5990 0 5955 2 0 2 2 0 8 0 vmmpepl 168 41753 0 40009 90 7 83 90 0 357 0 vmsppl 360 571 0 545 4 1 3 4 0 8 0 rwobjpl 32 15617 0 12687 24 0 24 24 0 8 0 pdppl 4096 1151 0 1090 103 36 67 83 0 8 6 pvpl 32 267776 0 259736 104 6 98 98 0 265 19 pmappl 216 571 0 545 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 276 0 51 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff800037519398,0,ffff800037519310,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff8000014bb500,ffff800037519440,ffff800037519398,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd806b6e4400,ffff8000014f30c0) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff8000014f30c0,fffffd806b6e4400,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff8000014f30c0,0,ffff8000375195e8,0,0,808) at sosend+0x824 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7d5498,9,ffff8000375196e0,808,ffff800037519790) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7d5498,ffff800037519840,ffff800037519790) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800037519840) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800037519840) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xed2f83a4bc0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e arprequest sys/netinet/if_ether.c:279 [inline] arp_rtrequest(ffff800000039058,1,fffffd806cb6e2b8) at arp_rtrequest+0x65e sys/netinet/if_ether.c:182 rtrequest(1,ffff800037519398,0,ffff800037519310,16) at rtrequest+0xd4c sys/net/route.c:1114 rtm_output(ffff8000014bb500,ffff800037519440,ffff800037519398,0,16) at rtm_output+0x855 sys/net/rtsock.c:970 route_output(fffffd806b6e4400,ffff8000014f30c0) at route_output+0x9ac sys/net/rtsock.c:875 route_send(ffff8000014f30c0,fffffd806b6e4400,0,0) at route_send+0xd7 sys/net/rtsock.c:339 sosend(ffff8000014f30c0,0,ffff8000375195e8,0,0,808) at sosend+0x824 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7d5498,9,ffff8000375196e0,808,ffff800037519790) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendto(ffff80002a7d5498,ffff800037519840,ffff800037519790) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:557 syscall(ffff800037519840) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800037519840) at syscall+0x97e sys/arch/amd64/amd64/trap.c:742 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xed2f83a4bc0, count: -10