uvm_fault(0xfffffd803f014110, 0x100000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xfffffd803f014110, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800014a03e00, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009da200,ffff800014a03eb8,ffff800014a03e10,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd803a78e600,fffffd803a740480,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd803a740480,9,fffffd803a78e600,0,0,ffff80001491feb8) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd803a740480,0,ffff800014a040b0,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff80001491feb8,3,ffff800014a04190,0,ffff800014a04290) at sendit+0x53f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff80001491feb8,ffff800014a04228,ffff800014a04290) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800014a042f0) at syscall+0x508 Xsyscall(6,0,ffffffffffffffd8,0,6,fec500be010) at Xsyscall+0x128 end of kernel end trace frame: 0xfee5d7ff5d0, count: -9 ddb> show registers rdi 0xffffffff819ef3a7 arp_rtrequest+0x157 rsi 0x195 rbp 0xffff800014a03d60 rbx 0xffff80000005b500 rdx 0x196 rcx 0xdeaf4152deaf4152 rax 0xffff80000005b508 r8 0x40 r9 0x5 r10 0xffff80000098fc00 r11 0x42d38ad36ca82dad r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd803c498628 r15 0x100000000 rip 0xffffffff819ef3af arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014a03ce0 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.1) pid=321081 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff80001491f9d8,0xffffffff822c2708 process=0xffff8000ffffa010 user=0xffff8000149ff000, vmspace=0xfffffd803f014110 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 7205 87077 33591 0 3 0x80 fsleep syz-executor.1 * 7205 321081 33591 0 7 0x4000000 syz-executor.1 13886 157785 38814 0 3 0x82 nanosleep syz-executor.0 23050 401009 1 0 3 0x100083 ttyin getty 36529 96683 0 0 3 0x14200 bored sosplice 33591 259636 38814 0 3 0x82 nanosleep syz-executor.1 38814 53475 78382 0 3 0x82 thrsleep syz-fuzzer 38814 140494 78382 0 2 0x4000482 syz-fuzzer 38814 318548 78382 0 3 0x4000082 thrsleep syz-fuzzer 38814 48053 78382 0 3 0x4000082 thrsleep syz-fuzzer 38814 29874 78382 0 3 0x4000082 thrsleep syz-fuzzer 38814 225748 78382 0 3 0x4000082 kqread syz-fuzzer 38814 140160 78382 0 3 0x4000082 thrsleep syz-fuzzer 38814 335057 78382 0 3 0x4000082 thrsleep syz-fuzzer 78382 510632 77459 0 3 0x10008a pause ksh 77459 66237 87581 0 3 0x92 select sshd 87581 318749 1 0 3 0x80 select sshd 5711 293654 73079 73 2 0x100090 syslogd 73079 477230 1 0 3 0x100082 netio syslogd 7365 203404 1 77 3 0x100090 poll dhclient 40903 198321 1 0 3 0x80 poll dhclient 43207 149442 0 0 2 0x14200 zerothread 53992 117401 0 0 3 0x14200 aiodoned aiodoned 53970 100913 0 0 3 0x14200 syncer update 44484 16345 0 0 3 0x14200 cleaner cleaner 31065 395746 0 0 3 0x14200 reaper reaper 40338 447802 0 0 3 0x14200 pgdaemon pagedaemon 33031 81142 0 0 3 0x14200 bored crynlk 78265 305874 0 0 3 0x14200 bored crypto 51237 190797 0 0 3 0x40014200 acpi0 acpi0 80351 162710 0 0 3 0x14200 bored softnet 40525 421966 0 0 3 0x14200 bored systqmp 36897 305390 0 0 3 0x14200 bored systq 63078 465086 0 0 3 0x40014200 bored softclock 26597 171661 0 0 3 0x40014200 idle0 45427 34752 0 0 3 0x14200 bored smr 1 493390 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 Kern Lim devbuf 9518 6611K 6998K 78643K 16353 0 0 pcb 24 9K 10K 78643K 1152 0 0 rtable 126 5K 5K 78643K 1094 0 0 ifaddr 56 14K 15K 78643K 322 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 125 0 0 iov 0 0K 24K 78643K 273 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1207 76K 76K 78643K 3522 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 26 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 1K 78643K 164 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 2477 0 0 sigio 0 0K 0K 78643K 42 0 0 proc 42 30K 54K 78643K 965 0 0 subproc 32 2K 2K 78643K 206 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 193 0 0 in_multi 33 2K 2K 78643K 220 0 0 ether_multi 1 0K 0K 78643K 16 0 0 mrt 0 0K 0K 78643K 7 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 78 344K 344K 78643K 78 0 0 exec 0 0K 1K 78643K 458 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 88 20K 29K 78643K 6787 0 0 UVM aobj 102 3K 3K 78643K 113 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 72 0 0 NDP 11 0K 0K 78643K 98 0 0 temp 168 2711K 2782K 78643K 11509 0 0 kqueue 0 0K 0K 78643K 20 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 26 0 20 1 0 1 1 0 8 0 inpcbpl 280 936 0 929 1 0 1 1 0 8 0 rtentry 112 173 0 122 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 326 0 322 1 0 1 1 0 8 0 nd6 48 36 0 30 1 0 1 1 0 8 0 ppxss 1128 46 0 46 9 9 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 664 0 467 13 0 13 13 0 8 0 art_table 32 665 0 467 2 0 2 2 0 8 0 art_node 16 161 0 120 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 162 0 152 1 0 1 1 0 8 0 shmpl 112 111 0 11 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5269 0 3827 47 0 47 47 0 8 0 ffsino 240 5269 0 3827 85 0 85 85 0 8 0 nchpl 144 8785 0 7162 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 27560 0 27560 2 1 1 1 0 8 1 scsiplug 64 2 0 2 2 2 0 1 0 8 0 scxspl 192 29590 0 29590 13 10 3 6 0 8 3 plimitpl 152 86 0 79 1 0 1 1 0 8 0 sigapl 432 2619 0 2606 2 0 2 2 0 8 0 futexpl 56 36208 0 36207 1 0 1 1 0 8 0 knotepl 112 680 0 661 2 1 1 2 0 8 0 kqueuepl 104 481 0 479 1 0 1 1 0 8 0 pipepl 112 1518 0 1499 6 4 2 2 0 8 1 fdescpl 424 2620 0 2606 2 0 2 2 0 8 0 filepl 120 15071 0 14976 5 1 4 5 0 8 0 lockfpl 104 879 0 879 2 1 1 1 0 8 1 lockfspl 48 299 0 299 2 1 1 1 0 8 1 sessionpl 112 28 0 18 1 0 1 1 0 8 0 pgrppl 48 60 0 50 1 0 1 1 0 8 0 ucredpl 96 3284 0 3277 1 0 1 1 0 8 0 zombiepl 144 2606 0 2605 2 1 1 1 0 8 0 processpl 840 2635 0 2605 4 0 4 4 0 8 0 procpl 624 5616 0 5578 4 0 4 4 0 8 0 sosppl 128 12 0 12 4 4 0 1 0 8 0 sockpl 384 1943 0 1925 3 0 3 3 0 8 1 mcl64k 65536 64 0 64 10 9 1 1 0 8 1 mcl16k 16384 5 0 5 3 3 0 1 0 8 0 mcl12k 12288 39 0 39 7 6 1 1 0 8 1 mcl9k 9216 15 0 15 8 7 1 1 0 8 1 mcl8k 8192 34 0 34 9 9 0 1 0 8 0 mcl4k 4096 112 0 112 2 1 1 1 0 8 1 mcl2k2 2112 14 0 14 10 9 1 1 0 8 1 mcl2k 2048 58725 0 58684 12 6 6 10 0 8 0 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 107890 0 107838 16 11 5 9 0 8 0 bufpl 256 11473 0 6954 283 0 283 283 0 8 0 anonpl 16 238919 0 228677 113 67 46 58 0 62 0 amapchunkpl 152 11605 0 11505 25 16 9 9 0 158 4 amappl16 192 12296 0 11731 102 71 31 41 0 8 2 amappl15 184 1185 0 1182 1 0 1 1 0 8 0 amappl14 176 1248 0 1245 2 1 1 1 0 8 0 amappl13 168 13 0 13 3 3 0 1 0 8 0 amappl12 160 22 0 20 1 0 1 1 0 8 0 amappl11 152 915 0 898 1 0 1 1 0 8 0 amappl10 144 211 0 209 2 1 1 1 0 8 0 amappl9 136 853 0 850 1 0 1 1 0 8 0 amappl8 128 393 0 379 1 0 1 1 0 8 0 amappl7 120 205 0 200 1 0 1 1 0 8 0 amappl6 112 880 0 871 1 0 1 1 0 8 0 amappl5 104 247 0 237 1 0 1 1 0 8 0 amappl4 96 2723 0 2698 1 0 1 1 0 8 0 amappl3 88 251 0 241 1 0 1 1 0 8 0 amappl2 80 20633 0 20566 4 2 2 3 0 8 0 amappl1 72 56028 0 55625 26 17 9 19 0 8 0 amappl 80 5996 0 5962 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 112 0 11 2 0 2 2 0 8 0 uaddrrnd 24 2620 0 2606 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2620 0 2606 1 0 1 1 0 8 0 vmmpekpl 168 19985 0 19959 2 0 2 2 0 8 0 vmmpepl 168 274411 0 272885 154 81 73 87 0 357 1 vmsppl 272 2619 0 2606 2 1 1 2 0 8 0 pdppl 4096 5246 0 5212 6 1 5 6 0 8 0 pvpl 32 694458 0 681173 226 106 120 149 0 265 6 pmappl 200 2619 0 2606 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 454 0 44 12 0 12 12 0 8 0