uvm_fault(0xffffffff83880200, 0xffff8000014970ca, 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 *122344 60179 0 0 0x4000000 0 syz-executor arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c943310,0,ffff80003c943280,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000148f200,ffff80003c9433b8,ffff80003c943310,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ce4ce00,ffff800010fd57e8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fd57e8,fffffd806ce4ce00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fd57e8,0,ffff80003c943568,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a7e8,3,ffff80003c943660,808,ffff80003c943700) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a7e8,ffff80003c9437b0,ffff80003c943700) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9437b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9437b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeeaa46266a0, 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(0xffffffff83880200, 0xffff8000014970ca, 0, 1) -> e ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c943310,0,ffff80003c943280,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000148f200,ffff80003c9433b8,ffff80003c943310,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ce4ce00,ffff800010fd57e8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fd57e8,fffffd806ce4ce00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fd57e8,0,ffff80003c943568,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a7e8,3,ffff80003c943660,808,ffff80003c943700) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a7e8,ffff80003c9437b0,ffff80003c943700) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9437b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9437b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeeaa46266a0, count: -10 ddb> show registers rdi 0xffff80002ccfc000 rsi 0x67f rbp 0xffff80003c943160 rbx 0xde rdx 0xffff80002ccfc000 rcx 0xffff800001496fe0 rax 0xfffffd806ce4c5e0 r8 0x1000 __ALIGN_SIZE r9 0 r10 0xc8f1003bcca11691 r11 0x958c2d009774313 r12 0x36 r13 0xfffffd806ce4c500 r14 0xfffffd8073a09098 r15 0xffff800000039058 rip 0xffffffff829a7db4 arp_rtrequest+0x6a4 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9430e0 ss 0x10 arp_rtrequest+0x6a4: movzwl 0xc(%rcx,%rbx,1),%ecx ddb> show proc PROC (syz-executor) tid=122344 pid=60179 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=78, usrpri=78, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c94b248,0xffff80003c94aa90 process=0xffff8000ffffb198 user=0xffff80003c93e000, vmspace=0xfffffd806c261b90 estcpu=28, cpticks=2, pctcpu=0.1, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 45061 505693 11030 0 2 0 syz-executor 45061 95543 11030 0 3 0x4000080 fsleep syz-executor 46117 306056 40632 0 2 0 syz-executor 46117 390240 40632 0 3 0x4000080 fsleep syz-executor 80157 296667 95762 0 2 0 syz-executor 80157 116512 95762 0 3 0x4000080 fsleep syz-executor 96419 199337 72138 0 2 0 syz-executor 96419 312776 72138 0 2 0x4000000 syz-executor 96419 102685 72138 0 3 0x4000080 fsleep syz-executor 40193 423281 72476 0 3 0x80 nanoslp syz-executor 40193 131775 72476 0 3 0x4000080 fsleep syz-executor 40193 109088 72476 0 3 0x4000080 fsleep syz-executor 60179 212374 64623 0 2 0 syz-executor *60179 122344 64623 0 7 0x4000000 syz-executor 60179 325274 64623 0 3 0x4000080 fsleep syz-executor 35815 331837 64371 60928 2 0x10 syz-executor 35815 257948 64371 60928 3 0x4000090 fsleep syz-executor 35815 183180 64371 60928 3 0x4000090 fsleep syz-executor 35815 51393 64371 60928 3 0x4000090 fsleep syz-executor 72138 312493 86875 0 3 0x82 nanoslp syz-executor 94380 384777 0 0 3 0x14200 acct acct 37777 240465 0 0 3 0x14200 bored sosplice 72476 222091 86875 0 3 0x82 nanoslp syz-executor 11030 413228 86875 0 3 0x82 nanoslp syz-executor 70577 131630 86875 0 2 0x2 syz-executor 95762 388248 86875 0 3 0x82 nanoslp syz-executor 40632 503964 86875 0 3 0x82 nanoslp syz-executor 64623 211145 86875 0 3 0x82 nanoslp syz-executor 64371 58488 86875 0 3 0x82 nanoslp syz-executor 86875 314369 57067 0 3 0x82 kqread syz-executor 57067 196145 8415 0 3 0x10008a sigsusp ksh 8415 166072 78594 0 3 0x98 kqread sshd-session 78594 190880 35863 0 3 0x92 kqread sshd-session 72760 110449 1 0 3 0x100083 ttyin getty 35863 101877 1 0 3 0x88 kqread sshd 56986 231919 65389 73 3 0x1100090 kqread syslogd 65389 220639 1 0 3 0x100082 sbwait syslogd 78015 513535 1 0 3 0x100080 kqread resolvd 16471 79966 99546 77 3 0x100092 kqread dhcpleased 75706 19277 99546 77 3 0x100092 kqread dhcpleased 99546 130058 1 0 3 0x80 kqread dhcpleased 96585 203185 0 0 3 0x14200 bored smr 717 262537 0 0 2 0x14200 zerothread 42567 491140 0 0 3 0x14200 aiodoned aiodoned 83162 216932 0 0 3 0x14200 syncer update 87514 39162 0 0 3 0x14200 cleaner cleaner 38053 191654 0 0 3 0x14200 reaper reaper 91431 432188 0 0 3 0x14200 pgdaemon pagedaemon 69648 365079 0 0 3 0x14200 bored viomb 17951 145864 0 0 3 0x40014200 acpi0 acpi0 70813 246456 0 0 2 0x14200 softnet0 65269 453760 0 0 3 0x14200 bored systqmp 25307 8611 0 0 3 0x14200 bored systq 26959 345569 0 0 3 0x40014200 tmoslp softclock 35075 506527 0 0 3 0x40014200 idle0 1 182183 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 10194 11050K 11146K 166960K 11843 0 pcb 18 13K 14K 166960K 210 0 rtable 183 8K 9K 166960K 523 0 pf 25 12K 14K 166960K 81 0 ifaddr 31 5K 9K 166960K 82 0 ifgroup 38 1K 2K 166960K 113 0 sysctl 4 1K 9K 166960K 9 0 counters 29 17K 18K 166960K 65 0 ioctlops 0 0K 4K 166960K 216 0 iov 0 0K 28K 166960K 107 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1455 91K 92K 166960K 1851 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 44 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 240K 166960K 775 0 sigio 0 0K 0K 166960K 13 0 proc 60 59K 124K 166960K 597 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 222 0 in_multi 69 4K 8K 166960K 143 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 566 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 229 151K 169K 166960K 8628 0 UVM aobj 12 2K 2K 166960K 14 0 pinsyscall 39 78K 96K 166960K 1881 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 50 0 NDP 8 0K 2K 166960K 50 0 temp 63 8644K 8718K 166960K 28667 0 kqueue 16 23K 30K 166960K 153 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 76 0 72 1 0 1 1 0 8 0 rtentry 136 146 0 76 4 0 4 4 0 8 0 unpcb 144 488 0 467 5 4 1 5 0 8 0 syncache 336 8 0 8 2 1 1 1 0 8 1 tcpqe 32 2 0 2 2 1 1 1 0 8 1 tcpcb 736 364 0 358 7 6 1 7 0 8 0 arp 96 21 0 8 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 5 0 2 1 0 1 1 0 8 0 inpcb 328 1072 0 1062 12 5 7 7 0 8 5 ip6q 72 3 0 2 2 1 1 1 0 8 0 ip6af 40 5 0 4 2 1 1 1 0 8 0 nd6 112 35 0 19 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 25 0 25 1 0 1 1 0 8 1 pppxif 1384 4 0 4 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pfstkey 128 2 0 2 1 1 0 1 0 8 0 pfstate 384 1 0 1 1 1 0 1 0 8 0 rttmr 136 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 680 0 397 33 4 29 31 0 8 5 art_table 40 683 0 397 5 0 5 5 0 8 0 art_node 32 146 0 84 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 35 0 25 1 0 1 1 0 8 0 shmpl 112 11 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2726 0 1230 95 0 95 95 0 8 0 ffsino 256 2726 0 1230 95 0 95 95 0 8 0 nchpl 144 3830 0 2137 64 0 64 64 0 8 0 rtmask 32 7 0 7 1 1 0 1 0 8 0 vnodes 216 3078 0 0 171 0 171 171 0 8 0 namei 1024 13019 0 13019 3 2 1 2 0 8 1 kstatmem 264 64 0 48 3 1 2 3 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 12189 0 12189 8 7 1 8 1 8 1 plimitpl 152 337 0 319 1 0 1 1 0 8 0 sigapl 424 1053 0 1008 6 0 6 6 0 8 0 knotepl 120 40013 0 39964 31 21 10 24 0 8 7 kqueuepl 184 217 0 205 1 0 1 1 0 8 0 pipepl 304 211 0 184 5 0 5 5 0 8 2 fdescpl 448 1038 0 1008 5 1 4 5 0 8 0 filepl 120 6424 0 6201 15 4 11 12 0 8 3 lockfpl 104 395 0 392 2 1 1 2 0 8 0 lockfspl 48 90 0 87 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 45 0 29 1 0 1 1 0 8 0 ucredpl 104 1035 0 1022 1 0 1 1 0 8 0 zombiepl 144 1183 0 1183 1 0 1 1 0 8 1 processpl 1152 1053 0 1008 4 0 4 4 0 8 0 procpl 664 2062 0 2005 6 0 6 6 0 8 0 sosppl 168 3 0 3 2 1 1 1 0 8 1 sockpl 552 1662 0 1627 18 10 8 13 0 8 5 mcl64k 65536 96 0 96 2 1 1 1 0 8 1 mcl12k 12288 2 0 2 2 1 1 1 0 8 1 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 8 0 8 2 1 1 1 0 8 1 mcl4k 4096 3287 0 3233 13 5 8 13 0 8 0 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 1157 0 1143 7 5 2 5 0 8 0 mtagpl 96 7 0 7 2 1 1 1 0 8 1 mbufpl 256 11188 0 10997 21 3 18 18 0 8 4 bufpl 280 3732 0 120 258 0 258 258 0 8 0 anonpl 24 150265 0 147181 42 7 35 35 0 187 9 amapchunkpl 152 28308 0 27834 39 6 33 33 0 158 14 amappl16 200 2326 0 2290 5 1 4 5 0 8 0 amappl15 192 3 0 2 1 0 1 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 426 0 425 1 0 1 1 0 8 0 amappl12 168 1389 0 1351 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 44 0 34 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 116 0 115 1 0 1 1 0 8 0 amappl6 120 282 0 271 1 0 1 1 0 8 0 amappl5 112 85 0 77 1 0 1 1 0 8 0 amappl4 104 402 0 378 1 0 1 1 0 8 0 amappl3 96 4903 0 4814 3 0 3 3 0 8 0 amappl2 88 1172 0 1102 2 0 2 2 0 8 0 amappl1 80 12114 0 11591 13 1 12 13 0 8 0 amappl 88 7760 0 7598 5 0 5 5 0 92 0 uvmvnodes 80 3078 0 0 63 0 63 63 0 8 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 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 1 1 1 0 8 1 dma64 64 8 0 8 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 13 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1038 0 1008 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1038 0 1008 1 0 1 1 0 8 0 vmmpekpl 168 9879 0 9842 3 0 3 3 0 8 0 vmmpepl 168 71493 0 69708 90 4 86 86 0 357 5 vmsppl 368 1037 0 1008 4 1 3 4 0 8 0 rwobjpl 40 23550 0 19624 40 0 40 40 0 8 0 pdppl 4096 2083 0 2016 105 38 67 83 0 8 0 pvpl 32 436661 0 428141 106 16 90 97 0 265 8 pmappl 216 1037 0 1008 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 404 0 70 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c943310,0,ffff80003c943280,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000148f200,ffff80003c9433b8,ffff80003c943310,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ce4ce00,ffff800010fd57e8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fd57e8,fffffd806ce4ce00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fd57e8,0,ffff80003c943568,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a7e8,3,ffff80003c943660,808,ffff80003c943700) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a7e8,ffff80003c9437b0,ffff80003c943700) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9437b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9437b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeeaa46266a0, count: -10 ddb> machine ddbcpu 1 No such command ddb> trace arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 arprequest sys/netinet/if_ether.c:325 [inline] arp_rtrequest(ffff800000039058,1,fffffd8073a09098) at arp_rtrequest+0x6a4 sys/netinet/if_ether.c:226 rtrequest(1,ffff80003c943310,0,ffff80003c943280,16) at rtrequest+0xf08 sys/net/route.c:1114 rtm_output(ffff80000148f200,ffff80003c9433b8,ffff80003c943310,0,16) at rtm_output+0x91a sys/net/rtsock.c:953 route_output(fffffd806ce4ce00,ffff800010fd57e8) at route_output+0xa2b sys/net/rtsock.c:858 route_send(ffff800010fd57e8,fffffd806ce4ce00,0,0) at route_send+0xd7 sys/net/rtsock.c:322 sosend(ffff800010fd57e8,0,ffff80003c943568,0,0,808) at sosend+0x804 sys/kern/uipc_socket.c:-1 sendit(ffff80003c94a7e8,3,ffff80003c943660,808,ffff80003c943700) at sendit+0x5a5 sys/kern/uipc_syscalls.c:785 sys_sendto(ffff80003c94a7e8,ffff80003c9437b0,ffff80003c943700) at sys_sendto+0x8d sys/kern/uipc_syscalls.c:563 syscall(ffff80003c9437b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9437b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xeeaa46266a0, count: -10