uvm_fault(0xffffffff83997a28, 0xffff80000161202a, 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 * 13981 69723 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940c10,0,ffff80003c940b80,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001642c00,ffff80003c940cb8,ffff80003c940c10,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806da06b00,ffff8000015f9378) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff8000015f9378,fffffd806da06b00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f9378,0,ffff80003c940e68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90aa80,3,ffff80003c940f60,808,ffff80003c941000) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90aa80,ffff80003c9410b0,ffff80003c941000) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9410b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9410b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7dcc32ad4a0, 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(0xffffffff83997a28, 0xffff80000161202a, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940c10,0,ffff80003c940b80,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001642c00,ffff80003c940cb8,ffff80003c940c10,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806da06b00,ffff8000015f9378) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff8000015f9378,fffffd806da06b00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f9378,0,ffff80003c940e68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90aa80,3,ffff80003c940f60,808,ffff80003c941000) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90aa80,ffff80003c9410b0,ffff80003c941000) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9410b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9410b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7dcc32ad4a0, count: -10 ddb> show registers rdi 0x20 rsi 0x90 rbp 0xffff80003c940a60 rbx 0xde rdx 0 rcx 0xffff800001611f40 rax 0xfffffd806da061e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x4cee54848e2af01 r11 0x2a1c24d74e551243 r12 0x1b r13 0xfffffd806da06100 r14 0xfffffd806c692700 r15 0xffff8000002a2058 rip 0xffffffff832752f4 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9409e0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=13981 pid=69723 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=0xffff80003c90b248,0xffffffff83955610 process=0xffff8000ffffa418 user=0xffff80003c93c000, vmspace=0xfffffd806cce6e70 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 69723 146730 45387 0 2 0 syz-executor *69723 13981 45387 0 7 0x4000000 syz-executor 17270 201888 10814 0 2 0 syz-executor 17270 195265 10814 0 3 0x4000000 clonelk syz-executor 34971 396632 33855 0 2 0 syz-executor 34971 284106 33855 0 3 0x4000080 fsleep syz-executor 34971 172503 33855 0 3 0x4000080 pipewr syz-executor 94578 81125 40657 0 2 0 syz-executor 94578 60170 40657 0 3 0x4000080 fsleep syz-executor 52879 491148 50716 0 3 0x80 nanoslp syz-executor 52879 503647 50716 0 3 0x4000000 smrbar syz-executor 52879 25713 50716 0 3 0x4000080 fsleep syz-executor 37354 248829 0 0 3 0x14200 acct acct 44741 489610 17167 60929 3 0x90 nanoslp syz-executor 44741 139162 17167 60929 3 0x4000090 kqsel syz-executor 44741 513504 17167 60929 3 0x4000090 fsleep syz-executor 59463 177326 42491 0 3 0x80 nanoslp syz-executor 59463 174007 42491 0 3 0x4000080 kqsel syz-executor 59463 405105 42491 0 3 0x4000080 fsleep syz-executor 40657 86037 94187 0 2 0xc82 syz-executor 50716 12 94187 0 2 0xc82 syz-executor 17167 442192 94187 0 2 0xc82 syz-executor 10814 314376 94187 0 3 0x82 nanoslp syz-executor 33855 318360 94187 0 3 0x82 nanoslp syz-executor 42491 42056 94187 0 3 0x82 nanoslp syz-executor 45387 447877 94187 0 2 0xc82 syz-executor 63455 476039 94187 0 2 0x2 syz-executor 94187 166139 62897 0 3 0x82 kqread syz-executor 62897 18127 66721 0 3 0x10008a sigsusp ksh 66721 373001 3681 0 3 0x98 kqread sshd-session 3681 137965 84629 0 3 0x92 kqread sshd-session 72233 414208 1 0 3 0x100083 ttyin getty 84629 313099 1 0 3 0x88 kqread sshd 79996 482529 69344 73 3 0x1100090 kqread syslogd 69344 46343 1 0 3 0x100082 sbwait syslogd 13597 75938 1 0 3 0x100080 kqread resolvd 54183 145303 62727 77 3 0x100092 kqread dhcpleased 15158 289124 62727 77 3 0x100092 kqread dhcpleased 62727 161192 1 0 3 0x80 kqread dhcpleased 59504 498888 0 0 3 0x14200 bored smr 18530 56878 0 0 2 0x14200 zerothread 70175 35983 0 0 3 0x14200 aiodoned aiodoned 8237 384667 0 0 3 0x14200 syncer update 57342 289906 0 0 3 0x14200 cleaner cleaner 21619 488550 0 0 3 0x14200 reaper reaper 35610 128570 0 0 3 0x14200 pgdaemon pagedaemon 19392 122718 0 0 3 0x14200 bored viomb 25389 286493 0 0 3 0x40014200 acpi0 acpi0 98637 472082 0 0 2 0x14200 softnet0 76817 136782 0 0 3 0x14200 bored systqmp 50084 50773 0 0 3 0x14200 bored systq 2034 481709 0 0 3 0x40014200 tmoslp softclock 67776 239001 0 0 3 0x40014200 idle0 1 266793 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 11042 12248K 12458K 166960K 12168 0 pcb 17 12K 12K 166960K 25 0 rtable 256 9K 9K 166960K 382 0 pf 30 12K 13K 166960K 32 0 ifaddr 42 7K 7K 166960K 45 0 ifgroup 50 2K 2K 166960K 52 0 sysctl 3 1K 9K 166960K 7 0 counters 33 17K 18K 166960K 36 0 ioctlops 0 0K 2K 166960K 38 0 iov 0 0K 4K 166960K 66 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1298 82K 82K 166960K 1444 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 17 61K 97K 166960K 163 0 proc 62 67K 124K 166960K 509 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 6 0 in_multi 99 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 365 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 158K 168K 166960K 3197 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 38 76K 96K 166960K 1244 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 1 0 NDP 27 2K 2K 166960K 28 0 temp 36 9062K 9126K 166960K 3923 0 kqueue 14 22K 24K 166960K 26 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 41 0 37 1 0 1 1 0 8 0 rtentry 136 112 0 1 4 0 4 4 0 8 0 unpcb 144 46 0 30 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 13 0 9 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 76 0 66 2 0 2 2 0 8 0 nd6 112 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 40 454 0 0 5 0 5 5 0 8 0 art_node 32 112 0 11 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1673 0 212 92 0 92 92 0 8 0 ffsino 256 1673 0 212 92 0 92 92 0 8 0 nchpl 144 1910 0 215 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 1770 0 0 99 0 99 99 0 8 0 namei 1024 5678 0 5677 2 0 2 2 0 8 1 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 6119 0 6119 2 0 2 2 1 8 2 plimitpl 152 28 0 12 1 0 1 1 0 8 0 sigapl 424 454 0 411 6 0 6 6 0 8 1 knotepl 120 4108 0 3835 9 0 9 9 0 8 0 kqueuepl 184 26 0 14 1 0 1 1 0 8 0 pipepl 304 119 0 91 3 0 3 3 0 8 0 fdescpl 448 440 0 411 5 0 5 5 0 8 1 filepl 120 1728 0 1506 9 0 9 9 0 8 2 lockfpl 104 17 0 14 1 0 1 1 0 8 0 lockfspl 48 9 0 6 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 104 282 0 270 1 0 1 1 0 8 0 zombiepl 144 411 0 411 1 0 1 1 0 8 1 processpl 1152 454 0 411 4 0 4 4 0 8 0 procpl 664 500 0 446 5 0 5 5 0 8 0 sockpl 552 163 0 133 3 0 3 3 0 8 0 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2523 0 2471 15 0 15 15 0 8 8 mcl2k 2048 128 0 127 1 0 1 1 0 8 0 mtagpl 96 5 0 5 1 0 1 1 0 8 1 mbufpl 256 4929 0 4803 9 0 9 9 0 8 0 bufpl 280 2323 0 102 159 0 159 159 0 8 0 anonpl 24 95899 0 92767 22 0 22 22 0 187 2 amapchunkpl 152 8878 0 8433 19 0 19 19 0 158 0 amappl16 200 1715 0 1692 5 0 5 5 0 8 3 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 409 0 408 1 0 1 1 0 8 0 amappl13 176 121 0 111 1 0 1 1 0 8 0 amappl12 168 674 0 645 2 0 2 2 0 8 0 amappl11 160 9 0 9 1 0 1 1 0 8 1 amappl10 152 58 0 48 1 0 1 1 0 8 0 amappl9 144 260 0 260 1 0 1 1 0 8 1 amappl8 136 97 0 96 1 0 1 1 0 8 0 amappl7 128 148 0 136 1 0 1 1 0 8 0 amappl6 120 158 0 157 1 0 1 1 0 8 0 amappl5 112 85 0 78 1 0 1 1 0 8 0 amappl4 104 254 0 238 1 0 1 1 0 8 0 amappl3 96 1533 0 1432 3 0 3 3 0 8 0 amappl2 88 511 0 459 2 0 2 2 0 8 0 amappl1 80 9144 0 8593 13 0 13 13 0 8 0 amappl 88 2514 0 2362 4 0 4 4 0 92 0 uvmvnodes 80 95 0 0 2 0 2 2 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 440 0 411 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 440 0 411 1 0 1 1 0 8 0 vmmpekpl 168 5236 0 5203 2 0 2 2 0 8 0 vmmpepl 168 35957 0 34200 79 0 79 79 0 357 0 vmsppl 368 439 0 411 4 0 4 4 0 8 1 rwobjpl 40 13409 0 12486 11 0 11 11 0 8 0 pdppl 4096 886 0 822 96 14 82 82 0 8 18 pvpl 32 218179 0 209345 74 0 74 74 0 265 0 pmappl 216 439 0 411 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 358 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940c10,0,ffff80003c940b80,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001642c00,ffff80003c940cb8,ffff80003c940c10,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806da06b00,ffff8000015f9378) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff8000015f9378,fffffd806da06b00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f9378,0,ffff80003c940e68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90aa80,3,ffff80003c940f60,808,ffff80003c941000) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90aa80,ffff80003c9410b0,ffff80003c941000) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9410b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9410b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7dcc32ad4a0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c692700) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c940c10,0,ffff80003c940b80,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001642c00,ffff80003c940cb8,ffff80003c940c10,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806da06b00,ffff8000015f9378) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff8000015f9378,fffffd806da06b00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015f9378,0,ffff80003c940e68,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c90aa80,3,ffff80003c940f60,808,ffff80003c941000) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c90aa80,ffff80003c9410b0,ffff80003c941000) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9410b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9410b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7dcc32ad4a0, count: -10