uvm_fault(0xffffffff839bce80, 0xffff80000159a08a, 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 * 69193 95609 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a52cba0,0,ffff80003a52cb10,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001597500,ffff80003a52cc48,ffff80003a52cba0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bfad500,ffff800010fdfc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdfc10,fffffd806bfad500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdfc10,0,ffff80003a52cdf8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e1248,3,ffff80003a52cef0,808,ffff80003a52cf90) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7e1248,ffff80003a52d040,ffff80003a52cf90) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a52d040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a52d040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8136d8afc10, 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(0xffffffff839bce80, 0xffff80000159a08a, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a52cba0,0,ffff80003a52cb10,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001597500,ffff80003a52cc48,ffff80003a52cba0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bfad500,ffff800010fdfc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdfc10,fffffd806bfad500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdfc10,0,ffff80003a52cdf8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e1248,3,ffff80003a52cef0,808,ffff80003a52cf90) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7e1248,ffff80003a52d040,ffff80003a52cf90) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a52d040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a52d040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8136d8afc10, count: -10 ddb> show registers rdi 0xffff80002a8e8000 rsi 0xaa9 rbp 0xffff80003a52c9f0 rbx 0xde rdx 0xffff80002a8e8000 rcx 0xffff800001599fa0 rax 0xfffffd806bfad3e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x8b2d5e5ec6a1f770 r11 0x290e15086af460e1 r12 0x1b r13 0xfffffd806bfad300 r14 0xfffffd806c917bc8 r15 0xffff8000002a2058 rip 0xffffffff81cb1714 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a52c970 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=69193 pid=95609 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=0xffff80002a7e0d18,0xffff80002a7e02c8 process=0xffff80003811b198 user=0xffff80003a528000, vmspace=0xfffffd806c994740 estcpu=0, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 75976 379890 55480 0 2 0 syz-executor 75976 4127 55480 0 3 0x4000080 fsleep syz-executor 75976 52746 55480 0 2 0x4000000 syz-executor 41146 43496 4833 60929 2 0x10 syz-executor 41146 56365 4833 60929 3 0x4000090 fsleep syz-executor 71175 95876 79364 0 2 0 syz-executor 71175 386068 79364 0 3 0x4000080 fsleep syz-executor 76907 285357 99771 0 2 0 syz-executor 76907 355049 99771 0 2 0x4000000 syz-executor 95609 9162 5509 0 2 0 syz-executor *95609 69193 5509 0 7 0x4000000 syz-executor 12467 141909 10031 0 2 0 syz-executor 12467 67657 10031 0 3 0x4000080 fsleep syz-executor 12467 253617 10031 0 3 0x4000080 fsleep syz-executor 84419 15188 26037 0 2 0 syz-executor 84419 327841 26037 0 2 0x4000000 syz-executor 79353 198192 94798 -1 2 0x10 syz-executor 79353 341480 94798 -1 3 0x4000090 fifor syz-executor 79353 484198 94798 -1 3 0x4000090 fsleep syz-executor 79364 425975 94930 0 2 0xc82 syz-executor 94798 324656 94930 0 2 0xc82 syz-executor 10031 486486 94930 0 2 0xc82 syz-executor 26037 173809 94930 0 2 0xc82 syz-executor 55480 163460 94930 0 3 0x82 nanoslp syz-executor 4833 233456 94930 0 3 0x82 nanoslp syz-executor 99771 262029 94930 0 3 0x82 nanoslp syz-executor 5509 407779 94930 0 3 0x82 nanoslp syz-executor 94930 69121 39943 0 3 0x82 kqread syz-executor 39943 51398 17626 0 3 0x10008a sigsusp ksh 17626 313842 11040 0 3 0x98 kqread sshd-session 11040 110529 84680 0 3 0x92 kqread sshd-session 62455 476502 1 0 3 0x100083 ttyin getty 84680 18199 1 0 3 0x88 kqread sshd 1303 484878 39459 73 3 0x1100090 kqread syslogd 39459 177287 1 0 3 0x100082 sbwait syslogd 70928 212369 1 0 3 0x100080 kqread resolvd 51685 251777 30779 77 3 0x100092 kqread dhcpleased 17297 343334 30779 77 3 0x100092 kqread dhcpleased 30779 46950 1 0 3 0x80 kqread dhcpleased 91113 353315 0 0 3 0x14200 bored smr 45779 261596 0 0 2 0x14200 zerothread 8888 54957 0 0 3 0x14200 aiodoned aiodoned 42253 443943 0 0 3 0x14200 syncer update 87864 522702 0 0 3 0x14200 cleaner cleaner 11185 425790 0 0 3 0x14200 reaper reaper 22727 446405 0 0 3 0x14200 pgdaemon pagedaemon 71108 401057 0 0 3 0x14200 bored viomb 43413 356261 0 0 3 0x40014200 acpi0 acpi0 34498 109499 0 0 3 0x14200 bored softnet0 67434 22338 0 0 3 0x14200 bored systqmp 93967 248634 0 0 3 0x14200 bored systq 40081 138610 0 0 3 0x40014200 tmoslp softclock 70355 339276 0 0 3 0x40014200 idle0 1 59631 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 11030 12126K 12296K 166960K 12129 0 pcb 17 12K 12K 166960K 21 0 rtable 254 8K 8K 166960K 387 0 pf 30 12K 13K 166960K 33 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 6 0 counters 33 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 33 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1345 85K 85K 166960K 1366 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 3 0 dirhash 15 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 85K 166960K 146 0 proc 60 59K 91K 166960K 474 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 3 0 in_multi 100 7K 7K 166960K 100 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 356 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 222 148K 150K 166960K 2903 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 39 78K 91K 166960K 1214 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 8658K 8722K 166960K 3768 0 kqueue 13 20K 20K 166960K 22 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 39 0 35 1 0 1 1 0 8 0 rtentry 136 113 0 1 4 0 4 4 0 8 0 unpcb 144 102 0 85 4 0 4 4 0 8 3 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 41 0 36 4 0 4 4 0 8 3 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 95 0 87 4 0 4 4 0 8 3 nd6 112 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pfrule 1344 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 455 0 0 29 0 29 29 0 8 0 art_table 40 457 0 0 5 0 5 5 0 8 0 art_node 32 113 0 11 1 0 1 1 0 8 0 semapl 112 1 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 0 3 0 3 3 0 8 0 dino2pl 256 1573 0 62 95 0 95 95 0 8 0 ffsino 256 1573 0 62 95 0 95 95 0 8 0 nchpl 144 1773 0 82 64 0 64 64 0 8 0 vnodes 216 1661 0 0 93 0 93 93 0 8 0 namei 1024 5230 0 5230 1 0 1 1 0 8 1 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 5749 0 5749 2 0 2 2 1 8 2 plimitpl 152 60 0 44 1 0 1 1 0 8 0 sigapl 424 432 0 389 6 0 6 6 0 8 1 knotepl 120 2741 0 2694 2 0 2 2 0 8 0 kqueuepl 184 19 0 10 1 0 1 1 0 8 0 pipepl 304 113 0 85 3 0 3 3 0 8 0 fdescpl 448 419 0 389 4 0 4 4 0 8 0 filepl 120 1498 0 1283 10 0 10 10 0 8 2 lockfpl 104 8 0 6 1 0 1 1 0 8 0 lockfspl 48 5 0 3 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 104 200 0 187 1 0 1 1 0 8 0 zombiepl 144 389 0 389 1 0 1 1 0 8 1 processpl 1152 432 0 389 4 0 4 4 0 8 0 procpl 664 456 0 402 5 0 5 5 0 8 0 sockpl 552 236 0 207 10 0 10 10 0 8 7 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2466 0 2412 13 0 13 13 0 8 5 mcl2k 2048 274 0 257 3 0 3 3 0 8 0 mtagpl 96 5 0 4 1 0 1 1 0 8 0 mbufpl 256 4199 0 4017 12 0 12 12 0 8 0 bufpl 280 2262 0 118 154 0 154 154 0 8 0 anonpl 24 97800 0 94757 23 0 23 23 0 187 4 amapchunkpl 152 8361 0 7700 26 0 26 26 0 158 0 amappl16 200 1877 0 1856 5 0 5 5 0 8 3 amappl15 192 29 0 29 1 0 1 1 0 8 1 amappl14 184 10 0 10 1 0 1 1 0 8 1 amappl13 176 405 0 404 1 0 1 1 0 8 0 amappl12 168 767 0 728 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 0 1 1 0 8 1 amappl10 152 42 0 32 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 0 1 1 0 8 1 amappl8 136 41 0 40 1 0 1 1 0 8 0 amappl7 128 81 0 79 1 0 1 1 0 8 0 amappl6 120 275 0 263 1 0 1 1 0 8 0 amappl5 112 69 0 62 1 0 1 1 0 8 0 amappl4 104 381 0 354 1 0 1 1 0 8 0 amappl3 96 1305 0 1202 3 0 3 3 0 8 0 amappl2 88 501 0 448 2 0 2 2 0 8 0 amappl1 80 8782 0 8242 13 0 13 13 0 8 0 amappl 88 2215 0 2060 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 419 0 389 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 419 0 389 1 0 1 1 0 8 0 vmmpekpl 168 5118 0 5095 2 0 2 2 0 8 0 vmmpepl 168 34885 0 33084 80 0 80 80 0 357 1 vmsppl 368 418 0 389 4 0 4 4 0 8 1 rwobjpl 40 13101 0 12185 10 0 10 10 0 8 0 pdppl 4096 844 0 778 90 14 76 76 0 8 10 pvpl 32 212527 0 204070 71 0 71 71 0 265 2 pmappl 216 418 0 389 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 360 0 14 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a52cba0,0,ffff80003a52cb10,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001597500,ffff80003a52cc48,ffff80003a52cba0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bfad500,ffff800010fdfc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdfc10,fffffd806bfad500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdfc10,0,ffff80003a52cdf8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e1248,3,ffff80003a52cef0,808,ffff80003a52cf90) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7e1248,ffff80003a52d040,ffff80003a52cf90) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a52d040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a52d040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8136d8afc10, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffffd806c917bc8) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003a52cba0,0,ffff80003a52cb10,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001597500,ffff80003a52cc48,ffff80003a52cba0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806bfad500,ffff800010fdfc10) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fdfc10,fffffd806bfad500,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fdfc10,0,ffff80003a52cdf8,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80002a7e1248,3,ffff80003a52cef0,808,ffff80003a52cf90) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80002a7e1248,ffff80003a52d040,ffff80003a52cf90) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003a52d040) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a52d040) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8136d8afc10, count: -10