uvm_fault(0xffffffff83a8c610, 0xffff80000163d02a, 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 *492555 8599 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8e13e0,0,ffff80003c8e1350,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001636a00,ffff80003c8e1488,ffff80003c8e13e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffff7806d609800,ffff8000015ffc18) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015ffc18,fffff7806d609800,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015ffc18,0,ffff80003c8e1638,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c99c560,3,ffff80003c8e1730,808,ffff80003c8e17d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c99c560,ffff80003c8e1880,ffff80003c8e17d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8e1880) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8e1880) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x232578dcf00, 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(0xffffffff83a8c610, 0xffff80000163d02a, 0, 1) -> e ddb> trace arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8e13e0,0,ffff80003c8e1350,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001636a00,ffff80003c8e1488,ffff80003c8e13e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffff7806d609800,ffff8000015ffc18) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015ffc18,fffff7806d609800,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015ffc18,0,ffff80003c8e1638,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c99c560,3,ffff80003c8e1730,808,ffff80003c8e17d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c99c560,ffff80003c8e1880,ffff80003c8e17d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8e1880) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8e1880) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x232578dcf00, count: -10 ddb> show registers rdi 0xffff8000338ca000 rsi 0x99c rbp 0xffff80003c8e1230 rbx 0xde rdx 0xffff8000338ca000 rcx 0xffff80000163cf40 rax 0xfffff7806d6091e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0x53c55e54ad85d31e r11 0xd6d2a666fbc9e4b9 r12 0x1b r13 0xfffff7806d609100 r14 0xfffff78074aa0a30 r15 0xffff8000002a2058 rip 0xffffffff81588884 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c8e11b0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=492555 pid=8599 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=0xffff80003c99dcb8,0xffff80003c99c040 process=0xffff8000ffffa898 user=0xffff80003c8dc000, vmspace=0xfffff7806cac68b0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 76972 438720 48225 0 2 0 syz-executor 8599 229447 39259 0 2 0 syz-executor * 8599 492555 39259 0 7 0x4000000 syz-executor 71595 455146 58605 0 2 0 syz-executor 71595 506429 58605 0 3 0x4000080 fsleep syz-executor 41198 58720 46561 0 2 0 syz-executor 15468 126243 42606 0 2 0 syz-executor 15468 474728 42606 0 3 0x4000080 fsleep syz-executor 5281 432759 1971 0 2 0x100002 sh 40970 259308 66167 0 2 0 syz-executor 1971 471539 98002 0 3 0x82 wait syz-executor 43435 120319 0 0 3 0x14280 nfsidl nfsio 69344 407180 0 0 3 0x14280 nfsidl nfsio 38420 356456 0 0 3 0x14280 nfsidl nfsio 53474 102616 0 0 3 0x14280 nfsidl nfsio 7512 192520 0 0 3 0x14280 nfsidl nfsio 38861 311276 0 0 3 0x14280 nfsidl nfsio 51756 15850 0 0 3 0x14280 nfsidl nfsio 62255 193346 0 0 3 0x14280 nfsidl nfsio 88510 150595 0 0 3 0x14280 nfsidl nfsio 46891 283064 0 0 3 0x14280 nfsidl nfsio 41446 298791 0 0 3 0x14280 nfsidl nfsio 24567 156192 0 0 3 0x14280 nfsidl nfsio 24222 450702 0 0 3 0x14280 nfsidl nfsio 69210 77393 0 0 3 0x14280 nfsidl nfsio 20590 285328 0 0 3 0x14280 nfsidl nfsio 21136 143073 0 0 3 0x14280 nfsidl nfsio 48039 369458 0 0 3 0x14280 nfsidl nfsio 75228 337565 0 0 3 0x14280 nfsidl nfsio 46382 78619 0 0 3 0x14280 nfsidl nfsio 76259 244123 0 0 3 0x14280 nfsidl nfsio 42606 105416 98002 0 2 0xc82 syz-executor 66167 489259 98002 0 3 0x82 nanoslp syz-executor 48225 279675 98002 0 2 0xc82 syz-executor 39259 2929 98002 0 2 0xc82 syz-executor 61199 57951 98002 0 2 0x2 syz-executor 46561 308508 98002 0 2 0xc82 syz-executor 58605 319418 98002 0 2 0xc82 syz-executor 98002 491788 4636 0 3 0x82 kqread syz-executor 4636 184252 50212 0 3 0x10008a sigsusp ksh 50212 136510 30687 0 3 0x98 kqread sshd-session 30687 398536 72056 0 3 0x92 kqread sshd-session 15862 482335 1 0 3 0x100083 ttyin getty 72056 113676 1 0 3 0x88 kqread sshd 14984 434960 32366 73 3 0x1100090 kqread syslogd 32366 459770 1 0 3 0x100082 sbwait syslogd 60087 69297 1 0 3 0x100080 kqread resolvd 85101 246303 59576 77 3 0x100092 kqread dhcpleased 57050 159731 59576 77 3 0x100092 kqread dhcpleased 59576 76617 1 0 3 0x80 kqread dhcpleased 10154 24369 0 0 3 0x14200 bored smr 53348 442768 0 0 2 0x14200 zerothread 55846 328195 0 0 3 0x14200 aiodoned aiodoned 66017 241287 0 0 3 0x14200 syncer update 5466 77345 0 0 3 0x14200 cleaner cleaner 66904 266429 0 0 3 0x14200 reaper reaper 2083 225706 0 0 3 0x14200 pgdaemon pagedaemon 91079 22280 0 0 3 0x14200 bored viomb 64415 429610 0 0 3 0x40014200 acpi0 acpi0 39761 49007 0 0 2 0x14200 softnet0 26699 84711 0 0 3 0x14200 bored systqmp 78886 234667 0 0 3 0x14200 bored systq 57761 132526 0 0 3 0x40014200 tmoslp softclock 77213 505573 0 0 3 0x40014200 idle0 1 473844 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 11026 12100K 12298K 166960K 12185 0 pcb 17 12K 12K 166960K 41 0 rtable 231 8K 8K 166960K 394 0 pf 31 13K 18K 166960K 76 0 ifaddr 38 6K 7K 166960K 45 0 ifgroup 49 2K 2K 166960K 58 0 sysctl 1 1K 9K 166960K 6 0 counters 32 17K 17K 166960K 34 0 ioctlops 0 0K 4K 166960K 76 0 iov 0 0K 12K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1297 82K 82K 166960K 1451 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 6 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 85K 166960K 239 0 sigio 0 0K 0K 166960K 1 0 proc 59 59K 83K 166960K 504 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 12 0 in_multi 88 6K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 371 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 188 143K 150K 166960K 3761 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 38 76K 90K 166960K 1341 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 10 0K 2K 166960K 28 0 temp 39 9107K 9170K 166960K 8534 0 kqueue 13 20K 24K 166960K 36 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 47 0 43 1 0 1 1 0 8 0 rtentry 136 113 0 13 4 0 4 4 0 8 0 unpcb 144 79 0 64 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 32 0 26 1 0 1 1 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 328 132 0 123 2 0 2 2 0 8 1 nd6 112 24 0 3 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 pfstscr 40 3 0 3 1 0 1 1 0 8 1 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfanchor 1288 1 0 1 1 0 1 1 0 8 1 pftag 88 2 0 2 1 0 1 1 0 8 1 pfstkey 128 3 0 3 1 0 1 1 0 8 1 pfstate 384 2 0 2 1 0 1 1 0 8 1 pfrule 1360 1 0 1 1 0 1 1 0 8 1 rttmr 136 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 256 452 0 44 29 0 29 29 0 8 2 art_table 40 454 0 44 5 0 5 5 0 8 0 art_node 32 113 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 3 1 0 1 1 0 8 0 semapl 72 5 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1760 0 297 92 0 92 92 0 8 0 ffsino 256 1760 0 297 92 0 92 92 0 8 0 nchpl 144 2110 0 420 64 0 64 64 0 8 0 vnodes 216 1882 0 0 105 0 105 105 0 8 0 namei 1024 6235 0 6234 2 0 2 2 0 8 1 kstatmem 264 25 0 4 2 0 2 2 0 8 0 scxspl 216 7278 0 7278 4 0 4 4 1 8 4 plimitpl 152 45 0 29 1 0 1 1 0 8 0 sigapl 424 552 0 490 8 0 8 8 0 8 0 knotepl 120 6226 0 6179 9 0 9 9 0 8 7 kqueuepl 184 73 0 64 3 0 3 3 0 8 2 pipepl 304 131 0 104 3 0 3 3 0 8 0 fdescpl 448 519 0 490 4 0 4 4 0 8 0 filepl 120 2124 0 1919 8 0 8 8 0 8 1 lockfpl 104 44 0 42 1 0 1 1 0 8 0 lockfspl 48 20 0 18 1 0 1 1 0 8 0 sessionpl 144 30 0 22 1 0 1 1 0 8 0 pgrppl 48 41 0 25 1 0 1 1 0 8 0 ucredpl 104 312 0 301 1 0 1 1 0 8 0 zombiepl 144 490 0 490 1 0 1 1 0 8 1 processpl 1152 552 0 490 5 0 5 5 0 8 0 procpl 664 689 0 624 7 0 7 7 0 8 0 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 552 260 0 232 3 0 3 3 0 8 0 mcl64k 65536 4 0 4 1 0 1 1 0 8 1 mcl8k 8192 6 0 6 1 0 1 1 0 8 1 mcl4k 4096 2625 0 2568 16 1 15 16 0 8 7 mcl2k 2048 206 0 204 3 0 3 3 0 8 2 mtagpl 96 5 0 5 1 0 1 1 0 8 1 mbufpl 256 5191 0 5031 15 0 15 15 0 8 2 bufpl 280 2424 0 104 166 0 166 166 0 8 0 anonpl 24 101389 0 98451 48 0 48 48 0 186 12 amapchunkpl 152 10973 0 10610 25 0 25 25 0 158 10 amappl16 200 1846 0 1823 15 0 15 15 0 8 8 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 416 0 414 1 0 1 1 0 8 0 amappl13 176 114 0 103 1 0 1 1 0 8 0 amappl12 168 756 0 730 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 59 0 49 1 0 1 1 0 8 0 amappl9 144 269 0 269 1 0 1 1 0 8 1 amappl8 136 93 0 91 1 0 1 1 0 8 0 amappl7 128 139 0 128 1 0 1 1 0 8 0 amappl6 120 153 0 150 1 0 1 1 0 8 0 amappl5 112 93 0 85 1 0 1 1 0 8 0 amappl4 104 260 0 244 1 0 1 1 0 8 0 amappl3 96 2020 0 1935 3 0 3 3 0 8 0 amappl2 88 530 0 478 2 0 2 2 0 8 0 amappl1 80 10499 0 9958 12 0 12 12 0 8 0 amappl 88 3062 0 2936 4 0 4 4 0 92 0 uvmvnodes 80 100 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 519 0 490 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 519 0 490 1 0 1 1 0 8 0 vmmpekpl 168 6052 0 6015 2 0 2 2 0 8 0 vmmpepl 168 42916 0 41235 92 0 92 92 0 357 15 vmsppl 368 518 0 490 4 0 4 4 0 8 1 rwobjpl 40 15175 0 14273 13 0 13 13 0 8 0 pdppl 4096 1044 0 980 90 24 66 76 0 8 2 pvpl 32 261039 0 253211 116 0 116 116 0 265 25 pmappl 216 518 0 490 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 360 0 25 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8e13e0,0,ffff80003c8e1350,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001636a00,ffff80003c8e1488,ffff80003c8e13e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffff7806d609800,ffff8000015ffc18) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015ffc18,fffff7806d609800,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015ffc18,0,ffff80003c8e1638,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c99c560,3,ffff80003c8e1730,808,ffff80003c8e17d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c99c560,ffff80003c8e1880,ffff80003c8e17d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8e1880) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8e1880) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x232578dcf00, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff8000002a2058,1,fffff78074aa0a30) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c8e13e0,0,ffff80003c8e1350,16) at rtrequest+0xdc1 sys/net/route.c:1114 rtm_output(ffff800001636a00,ffff80003c8e1488,ffff80003c8e13e0,0,16) at rtm_output+0x91a sys/net/rtsock.c:956 route_output(fffff7806d609800,ffff8000015ffc18) at route_output+0xa6a sys/net/rtsock.c:862 route_send(ffff8000015ffc18,fffff7806d609800,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff8000015ffc18,0,ffff80003c8e1638,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c99c560,3,ffff80003c8e1730,808,ffff80003c8e17d0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c99c560,ffff80003c8e1880,ffff80003c8e17d0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c8e1880) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8e1880) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x232578dcf00, count: -10