uvm_fault(0xffffffff8397c888, 0xffff8000015090aa, 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 *414898 8961 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003b1312f0,0,ffff80003b131260,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff8000014e5f00,ffff80003b131398,ffff80003b1312f0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806acf2100,ffff800001507210) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001507210,fffffd806acf2100,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001507210,0,ffff80003b131548,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a2b8,6,ffff80003b131640,808,ffff80003b1316e0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a2b8,ffff80003b131790,ffff80003b1316e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003b131790) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b131790) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e152b0fed0, 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(0xffffffff8397c888, 0xffff8000015090aa, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003b1312f0,0,ffff80003b131260,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff8000014e5f00,ffff80003b131398,ffff80003b1312f0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806acf2100,ffff800001507210) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001507210,fffffd806acf2100,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001507210,0,ffff80003b131548,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a2b8,6,ffff80003b131640,808,ffff80003b1316e0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a2b8,ffff80003b131790,ffff80003b1316e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003b131790) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b131790) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e152b0fed0, count: -10 ddb> show registers rdi 0x20 rsi 0x90 rbp 0xffff80003b131140 rbx 0xde rdx 0 rcx 0xffff800001508fc0 rax 0xfffffd806acf23e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xed67951ff62999c7 r11 0x91a61610bae56e7 r12 0x48 r13 0xfffffd806acf2300 r14 0xfffffd806bee2238 r15 0xffff800000039058 rip 0xffffffff82f98fc4 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003b1310c0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=414898 pid=8961 tcnt=3 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=0xffff80003c94b778,0xffff80003c94a030 process=0xffff80003c9dfaa0 user=0xffff80003b12c000, vmspace=0xfffffd8068bc1468 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 8961 304205 57738 0 2 0 syz-executor * 8961 414898 57738 0 7 0x4000000 syz-executor 8961 251602 57738 0 3 0x4000080 fsleep syz-executor 67089 87379 57511 0 2 0x2 ifconfig 57511 14083 77384 0 3 0x10008a sigsusp sh 91714 320260 79338 0 2 0x81000 syz-executor 91714 256657 79338 0 3 0x4003000 suspend syz-executor 29313 352879 65751 0 2 0 syz-executor 29313 482831 65751 0 3 0x4000080 fsleep syz-executor 87246 163795 19758 0 2 0 syz-executor 87246 478011 19758 0 3 0x4000080 fsleep syz-executor 18583 427195 21020 0 2 0 syz-executor 18583 212579 21020 0 3 0x4000080 fsleep syz-executor 70764 394210 8893 -1 2 0x10 syz-executor 70764 132909 8893 -1 2 0x4000010 syz-executor 13305 98021 47511 0 2 0 syz-executor 13305 301858 47511 0 3 0x4000080 fsleep syz-executor 13305 340712 47511 0 3 0x4000080 fsleep syz-executor 77384 221223 8146 0 3 0x82 wait syz-executor 88045 45342 0 0 3 0x14200 bored sosplice 67438 45475 1 0 3 0x100083 ttyin getty 19224 115626 0 0 3 0x14280 nfsidl nfsio 30164 320538 0 0 3 0x14280 nfsidl nfsio 4829 276834 0 0 3 0x14280 nfsidl nfsio 83894 274325 0 0 3 0x14280 nfsidl nfsio 64890 330407 0 0 3 0x14280 nfsidl nfsio 35133 506761 0 0 3 0x14280 nfsidl nfsio 72061 16456 0 0 3 0x14280 nfsidl nfsio 80861 523897 0 0 3 0x14280 nfsidl nfsio 11308 257792 0 0 3 0x14280 nfsidl nfsio 8382 59836 0 0 3 0x14280 nfsidl nfsio 5660 477630 0 0 3 0x14280 nfsidl nfsio 39587 353025 0 0 3 0x14280 nfsidl nfsio 57274 297814 0 0 3 0x14280 nfsidl nfsio 55813 464951 0 0 3 0x14280 nfsidl nfsio 35794 385202 0 0 3 0x14280 nfsidl nfsio 29596 388979 0 0 3 0x14280 nfsidl nfsio 90283 109782 0 0 3 0x14280 nfsidl nfsio 62119 67301 0 0 3 0x14280 nfsidl nfsio 25144 457360 0 0 3 0x14280 nfsidl nfsio 32404 83647 0 0 3 0x14280 nfsidl nfsio 79338 130093 8146 0 3 0x82 nanoslp syz-executor 65751 281076 8146 0 3 0x82 nanoslp syz-executor 57738 167831 8146 0 3 0x82 nanoslp syz-executor 19758 512722 8146 0 3 0x82 nanoslp syz-executor 21020 426849 8146 0 3 0x82 nanoslp syz-executor 8893 2479 8146 0 3 0x82 nanoslp syz-executor 47511 27893 8146 0 3 0x82 nanoslp syz-executor 8146 428875 6711 0 3 0x82 kqread syz-executor 6711 490571 23215 0 3 0x10008a sigsusp ksh 23215 286592 20939 0 3 0x98 kqread sshd-session 20939 279903 23768 0 3 0x92 kqread sshd-session 23768 31961 1 0 3 0x88 kqread sshd 45186 421832 56488 73 3 0x1100090 kqread syslogd 56488 149324 1 0 3 0x100082 sbwait syslogd 29301 477436 1 0 3 0x100080 kqread resolvd 91481 35823 95320 77 3 0x100092 kqread dhcpleased 45040 150535 95320 77 3 0x100092 kqread dhcpleased 95320 320860 1 0 3 0x80 kqread dhcpleased 37811 303707 0 0 3 0x14200 bored smr 95202 498269 0 0 2 0x14200 zerothread 13012 214617 0 0 3 0x14200 aiodoned aiodoned 65275 201609 0 0 3 0x14200 syncer update 75001 200539 0 0 3 0x14200 cleaner cleaner 84459 151212 0 0 3 0x14200 reaper reaper 2788 97933 0 0 3 0x14200 pgdaemon pagedaemon 23692 442855 0 0 3 0x14200 bored viomb 86452 325458 0 0 3 0x40014200 acpi0 acpi0 82942 97713 0 0 3 0x14200 bored softnet0 56000 235076 0 0 3 0x14200 bored systqmp 28354 498763 0 0 3 0x14200 bored systq 34829 31936 0 0 3 0x40014200 tmoslp softclock 11846 81554 0 0 3 0x40014200 idle0 1 197154 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 11052K 11690K 166960K 12871 0 pcb 19 18K 22K 166960K 322 0 rtable 161 8K 8K 166960K 506 0 pf 34 13K 16K 166960K 138 0 ifaddr 30 4K 7K 166960K 99 0 ifgroup 51 2K 2K 166960K 201 0 sysctl 3 1K 9K 166960K 12 0 counters 32 17K 18K 166960K 97 0 ioctlops 0 0K 4K 166960K 243 0 iov 0 0K 32K 166960K 51 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1400 88K 89K 166960K 2292 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 19 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 93K 166960K 948 0 sigio 0 0K 0K 166960K 12 0 proc 70 75K 116K 166960K 798 0 subproc 72 4K 4K 166960K 243 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 74 0 in_multi 51 3K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 7 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 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 587 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 4K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 231 156K 164K 166960K 9484 0 UVM aobj 16 2K 2K 166960K 18 0 pinsyscall 40 80K 94K 166960K 2187 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 19 0 NDP 11 0K 2K 166960K 72 0 temp 76 8648K 8712K 166960K 33158 0 kqueue 16 24K 30K 166960K 156 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 82 0 77 1 0 1 1 0 8 0 rtentry 136 128 0 71 4 0 4 4 0 8 0 unpcb 144 803 0 653 6 0 6 6 0 8 0 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 5 0 5 2 1 1 1 0 8 1 tcpcb 736 373 0 366 7 0 7 7 0 8 6 arp 96 19 0 8 1 0 1 1 0 8 0 ipq 40 4 0 1 1 0 1 1 0 8 0 ipqe 40 5 0 2 1 0 1 1 0 8 0 inpcb 328 1065 0 1053 23 14 9 18 0 8 8 ip6q 72 21 0 17 1 0 1 1 0 8 0 ip6af 40 37 0 34 1 0 1 1 0 8 0 nd6 112 28 0 17 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 27 0 19 1 0 1 1 0 8 0 ppxss 1072 36 0 36 2 1 1 1 0 8 1 pppxif 1384 3 0 3 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 5 0 3 1 0 1 1 0 8 0 pfstate 384 3 0 2 1 0 1 1 0 8 0 pfrule 1344 8 0 6 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 577 0 321 30 2 28 30 0 8 7 art_table 40 580 0 321 5 0 5 5 0 8 0 art_node 32 126 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 17 0 7 1 0 1 1 0 8 0 shmpl 112 15 0 2 1 0 1 1 0 8 0 dirhash 1024 28 0 11 3 0 3 3 0 8 0 dino2pl 256 2960 0 1444 95 0 95 95 0 8 0 ffsino 256 2960 0 1444 95 0 95 95 0 8 0 nchpl 144 4158 0 2446 64 0 64 64 0 8 0 rtmask 32 7 0 7 2 1 1 1 0 8 1 vnodes 216 3668 0 0 204 0 204 204 0 8 0 namei 1024 15168 0 15168 2 1 1 2 0 8 1 kstatmem 264 112 0 90 3 1 2 3 0 8 0 scsiplug 72 6 0 6 2 1 1 1 0 8 1 scxspl 216 15198 0 15198 9 1 8 8 1 8 8 plimitpl 152 263 0 247 1 0 1 1 0 8 0 sigapl 424 1224 0 1159 8 0 8 8 0 8 0 knotepl 120 29386 0 29332 17 7 10 10 0 8 7 kqueuepl 184 448 0 306 10 3 7 7 0 8 0 pipepl 304 224 0 197 3 0 3 3 0 8 0 fdescpl 448 1188 0 1157 5 1 4 5 0 8 0 filepl 120 8024 0 7433 23 5 18 18 0 8 0 lockfpl 104 358 0 356 2 1 1 2 0 8 0 lockfspl 48 103 0 101 1 0 1 1 0 8 0 sessionpl 144 42 0 34 1 0 1 1 0 8 0 pgrppl 48 113 0 97 1 0 1 1 0 8 0 ucredpl 104 1161 0 1147 1 0 1 1 0 8 0 zombiepl 144 1160 0 1159 1 0 1 1 0 8 0 processpl 1152 1224 0 1159 5 0 5 5 0 8 0 procpl 664 2259 0 2185 7 0 7 7 0 8 0 sockpl 552 2245 0 2078 27 15 12 22 0 8 0 mcl64k 65536 119 0 119 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 11 0 11 2 1 1 1 0 8 1 mcl4k 4096 3365 0 3313 16 8 8 15 0 8 0 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 1484 0 1472 7 4 3 5 0 8 1 mtagpl 96 11 0 6 1 0 1 1 0 8 0 mbufpl 256 11976 0 11843 21 2 19 19 0 8 7 bufpl 280 5986 0 133 419 0 419 419 0 8 0 anonpl 24 200075 0 196897 71 26 45 56 0 187 15 amapchunkpl 152 31436 0 30970 30 6 24 27 0 158 6 amappl16 200 4079 0 4051 29 18 11 15 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 42 0 42 1 1 0 1 0 8 0 amappl13 176 484 0 482 1 0 1 1 0 8 0 amappl12 168 1611 0 1572 2 0 2 2 0 8 0 amappl11 160 14 0 13 1 0 1 1 0 8 0 amappl10 152 46 0 36 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 54 0 52 1 0 1 1 0 8 0 amappl7 128 129 0 127 1 0 1 1 0 8 0 amappl6 120 345 0 331 1 0 1 1 0 8 0 amappl5 112 72 0 65 1 0 1 1 0 8 0 amappl4 104 389 0 365 1 0 1 1 0 8 0 amappl3 96 5340 0 5252 3 0 3 3 0 8 0 amappl2 88 1288 0 1216 2 0 2 2 0 8 0 amappl1 80 12492 0 11956 13 1 12 13 0 8 0 amappl 88 8599 0 8439 5 0 5 5 0 92 1 uvmvnodes 80 3668 0 0 75 0 75 75 0 8 0 dma4096 4096 2 0 2 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 2 1 1 1 0 8 1 dma128 128 256 0 256 2 1 1 1 0 8 1 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 17 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1188 0 1157 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1188 0 1157 1 0 1 1 0 8 0 vmmpekpl 168 10527 0 10496 2 0 2 2 0 8 0 vmmpepl 168 81370 0 79560 97 7 90 91 0 357 10 vmsppl 368 1187 0 1157 4 1 3 4 0 8 0 rwobjpl 40 26999 0 22476 46 0 46 46 0 8 0 pdppl 4096 2382 0 2314 126 58 68 80 0 8 0 pvpl 32 523858 0 515258 144 30 114 118 0 265 33 pmappl 216 1187 0 1157 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 425 0 81 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003b1312f0,0,ffff80003b131260,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff8000014e5f00,ffff80003b131398,ffff80003b1312f0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806acf2100,ffff800001507210) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001507210,fffffd806acf2100,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001507210,0,ffff80003b131548,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a2b8,6,ffff80003b131640,808,ffff80003b1316e0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a2b8,ffff80003b131790,ffff80003b1316e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003b131790) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b131790) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e152b0fed0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd806bee2238) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003b1312f0,0,ffff80003b131260,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff8000014e5f00,ffff80003b131398,ffff80003b1312f0,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806acf2100,ffff800001507210) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800001507210,fffffd806acf2100,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800001507210,0,ffff80003b131548,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a2b8,6,ffff80003b131640,808,ffff80003b1316e0) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a2b8,ffff80003b131790,ffff80003b1316e0) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003b131790) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003b131790) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x2e152b0fed0, count: -10