uvm_fault(0xfffffd803f014660, 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(0xfffffd803f014660, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800015a29e90, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009e6a00,ffff800015a29f48,ffff800015a29ea0,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd80300d3600,fffffd80363e2a88,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd80363e2a88,9,fffffd80300d3600,0,0,ffff80001491f768) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd80363e2a88,0,ffff800015a2a140,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff80001491f768,3,ffff800015a2a220,0,ffff800015a2a320) at sendit+0x53f sys/kern/uipc_syscalls.c:662 sys_sendto(ffff80001491f768,ffff800015a2a2b8,ffff800015a2a320) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800015a2a380) at syscall+0x508 Xsyscall(6,0,ffffffffffffffd8,0,6,951e5442010) at Xsyscall+0x128 end of kernel end trace frame: 0x953fd49a680, count: -9 ddb> show registers rdi 0xffffffff819ef3a7 arp_rtrequest+0x157 rsi 0x1b5 rbp 0xffff800015a29df0 rbx 0xffff80000005b1d0 rdx 0x1b6 rcx 0xdeaf4152deaf4152 rax 0xffff80000005b1d8 r8 0x40 r9 0x5 r10 0xffff800000995680 r11 0xfbe64e72437a8ded r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd803d429388 r15 0x100000000 rip 0xffffffff819ef3af arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015a29d70 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.0) pid=73393 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001491f4f8,0xffffffff822c2708 process=0xffff8000ffffb708 user=0xffff800015a25000, vmspace=0xfffffd803f014660 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 44001 464961 16626 0 2 0 syz-executor.0 *44001 73393 16626 0 7 0x4000000 syz-executor.0 15817 510680 1 0 3 0x82 nanosleep getty 14248 294619 0 0 3 0x14200 bored sosplice 16626 357565 72995 0 2 0x482 syz-executor.0 31239 450296 72995 0 2 0x2 syz-executor.1 72995 201439 51965 0 3 0x82 thrsleep syz-fuzzer 72995 347844 51965 0 3 0x4000082 nanosleep syz-fuzzer 72995 78935 51965 0 3 0x4000082 kqread syz-fuzzer 72995 510434 51965 0 3 0x4000082 thrsleep syz-fuzzer 72995 466405 51965 0 3 0x4000082 thrsleep syz-fuzzer 72995 434840 51965 0 3 0x4000082 thrsleep syz-fuzzer 72995 185679 51965 0 3 0x4000082 thrsleep syz-fuzzer 51965 327220 1886 0 3 0x10008a pause ksh 1886 176637 94617 0 3 0x92 select sshd 94617 355057 1 0 3 0x80 select sshd 8123 487100 75718 73 2 0x100090 syslogd 75718 353754 1 0 3 0x100082 netio syslogd 2983 163348 1 77 3 0x100090 poll dhclient 84410 336887 1 0 3 0x80 poll dhclient 40135 459550 0 0 2 0x14200 zerothread 11189 106195 0 0 3 0x14200 aiodoned aiodoned 71767 384050 0 0 3 0x14200 syncer update 14943 41231 0 0 3 0x14200 cleaner cleaner 86659 214750 0 0 3 0x14200 reaper reaper 55720 12422 0 0 3 0x14200 pgdaemon pagedaemon 20487 216137 0 0 3 0x14200 bored crynlk 33878 309634 0 0 3 0x14200 bored crypto 63401 49247 0 0 3 0x40014200 acpi0 acpi0 30292 129545 0 0 3 0x14200 bored softnet 204 390600 0 0 3 0x14200 bored systqmp 21549 193292 0 0 3 0x14200 bored systq 12455 6080 0 0 3 0x40014200 bored softclock 51763 375923 0 0 3 0x40014200 idle0 18606 196844 0 0 2 0x14200 smr 1 154087 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 9552 6747K 7060K 78643K 22422 0 0 pcb 24 9K 11K 78643K 2428 0 0 rtable 126 5K 5K 78643K 1043 0 0 ifaddr 62 15K 15K 78643K 469 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 218 0 0 iov 0 0K 32K 78643K 620 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1208 76K 77K 78643K 5782 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 60 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 368 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 5085 0 0 sigio 0 0K 0K 78643K 80 0 0 proc 42 30K 54K 78643K 829 0 0 subproc 32 2K 2K 78643K 40 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 500 0 0 in_multi 33 2K 2K 78643K 218 0 0 ether_multi 1 0K 0K 78643K 34 0 0 mrt 0 0K 0K 78643K 10 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 90 397K 397K 78643K 90 0 0 exec 0 0K 1K 78643K 566 0 0 pfkey data 0 0K 0K 78643K 2 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 85 20K 30K 78643K 12719 0 0 UVM aobj 130 6K 6K 78643K 139 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 217 0 0 NDP 13 0K 0K 78643K 124 0 0 temp 182 2715K 3355K 78643K 18285 0 0 kqueue 0 0K 0K 78643K 44 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 6 0 0 1 0 1 1 0 8 0 inpcbpl 280 1992 0 1985 1 0 1 1 0 8 0 rtentry 112 67 0 20 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpcb 544 727 0 723 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 90 0 90 16 16 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 194 0 0 13 0 13 13 0 8 0 art_table 32 195 0 0 2 0 2 2 0 8 0 art_node 16 47 0 6 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 11 1 0 1 1 0 8 0 semapl 112 366 0 356 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 9849 0 8374 48 0 48 48 0 8 0 ffsino 240 9849 0 8374 87 0 87 87 0 8 0 nchpl 144 17166 0 15539 61 0 61 61 0 8 0 uvmvnodes 72 6773 0 0 124 0 124 124 0 8 0 vnodes 200 6773 0 0 357 0 357 357 0 8 0 namei 1024 54159 0 54159 2 1 1 1 0 8 1 scsiplug 64 8 0 8 6 6 0 1 0 8 0 scxspl 192 52909 0 52909 24 23 1 6 0 8 1 plimitpl 152 149 0 142 1 0 1 1 0 8 0 sigapl 432 5259 0 5246 2 0 2 2 0 8 0 futexpl 56 80645 0 80645 1 0 1 1 0 8 1 knotepl 112 909 0 890 1 0 1 1 0 8 0 kqueuepl 104 1163 0 1161 1 0 1 1 0 8 0 pipepl 112 2920 0 2901 8 7 1 2 0 8 0 fdescpl 424 5260 0 5246 2 0 2 2 0 8 0 filepl 120 31515 0 31421 5 1 4 5 0 8 1 lockfpl 104 1912 0 1912 3 2 1 1 0 8 1 lockfspl 48 653 0 653 3 2 1 1 0 8 1 sessionpl 112 19 0 10 1 0 1 1 0 8 0 pgrppl 48 65 0 56 1 0 1 1 0 8 0 ucredpl 96 7273 0 7266 1 0 1 1 0 8 0 zombiepl 144 5246 0 5246 2 1 1 1 0 8 1 processpl 840 5275 0 5246 4 0 4 4 0 8 0 procpl 624 11775 0 11739 4 0 4 4 0 8 0 sosppl 128 47 0 47 13 12 1 1 0 8 1 sockpl 384 4176 0 4158 5 2 3 4 0 8 1 mcl64k 65536 914 0 914 109 108 1 64 0 8 1 mcl16k 16384 19 0 19 13 13 0 1 0 8 0 mcl12k 12288 70 0 70 22 21 1 1 0 8 1 mcl9k 9216 92 0 92 18 17 1 1 0 8 1 mcl8k 8192 56 0 56 18 17 1 1 0 8 1 mcl4k 4096 206 0 206 9 8 1 1 0 8 1 mcl2k2 2112 20 0 20 11 11 0 1 0 8 0 mcl2k 2048 63179 0 63138 13 7 6 10 0 8 0 mtagpl 80 11 0 11 4 4 0 1 0 8 0 mbufpl 256 127301 0 127234 56 50 6 37 0 8 0 bufpl 256 19576 0 12739 428 0 428 428 0 8 0 anonpl 16 454003 0 443694 215 160 55 59 0 62 11 amapchunkpl 152 21791 0 21691 58 53 5 14 0 158 0 amappl16 192 30358 0 29796 192 158 34 41 0 8 4 amappl14 176 2572 0 2568 2 1 1 1 0 8 0 amappl12 160 18 0 15 1 0 1 1 0 8 0 amappl11 152 50 0 36 1 0 1 1 0 8 0 amappl10 144 65 0 62 2 1 1 1 0 8 0 amappl9 136 554 0 550 1 0 1 1 0 8 0 amappl8 128 141 0 123 1 0 1 1 0 8 0 amappl7 120 29 0 26 1 0 1 1 0 8 0 amappl6 112 60 0 52 1 0 1 1 0 8 0 amappl5 104 167 0 157 1 0 1 1 0 8 0 amappl4 96 5447 0 5425 1 0 1 1 0 8 0 amappl3 88 2866 0 2855 1 0 1 1 0 8 0 amappl2 80 42060 0 41995 4 2 2 3 0 8 0 amappl1 72 99794 0 99377 24 15 9 19 0 8 0 amappl 80 12062 0 12028 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 64 138 0 9 3 0 3 3 0 8 0 uaddrrnd 24 5260 0 5246 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 5260 0 5246 1 0 1 1 0 8 0 vmmpekpl 168 41904 0 41879 2 0 2 2 0 8 0 vmmpepl 168 521617 0 520078 206 128 78 84 0 357 6 vmsppl 272 5259 0 5246 2 1 1 2 0 8 0 pdppl 4096 10526 0 10492 6 1 5 6 0 8 0 pvpl 32 1343136 0 1329745 433 286 147 201 0 265 35 pmappl 200 5259 0 5246 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 767 0 208 17 0 17 17 0 8 0