uvm_fault(0xfffffd803f013840, 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(0xfffffd803f013840, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800016a2abf0, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009f5a00,ffff800016a2aca8,ffff800016a2ac00,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd80354d4600,fffffd80363faa88,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd80363faa88,9,fffffd80354d4600,0,0,ffff800016bef530) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd80363faa88,0,ffff800016a2aea0,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800016bef530,3,ffff800016a2af80,0,ffff800016a2b090) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800016bef530,ffff800016a2b028,ffff800016a2b090) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800016a2b100) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,87d555b4010) at Xsyscall+0x128 end of kernel end trace frame: 0x87f827acf90, count: -9 ddb> show registers rdi 0xffffffff81ed4057 arp_rtrequest+0x157 rsi 0x195 rbp 0xffff800016a2ab50 rbx 0xffff800000a23000 rdx 0x196 rcx 0xdeaf4152deaf4152 rax 0xffff800000a23008 r8 0x40 r9 0x5 r10 0xffff800000994b00 r11 0x2d65297008e237a2 r12 0xffff800000172290 r13 0x2 r14 0xfffffd8039d2a078 r15 0x100000000 rip 0xffffffff81ed405f arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800016a2aad0 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.0) pid=22286 stat=onproc flags process=0 proc=4000000 pri=76, usrpri=76, nice=20 forw=0xffffffffffffffff, list=0xffff800016bef9e0,0xffffffff822ca0f0 process=0xffff8000ffff7708 user=0xffff800016a26000, vmspace=0xfffffd803f013840 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 36320 229874 82019 0 2 0 syz-executor.0 *36320 22286 82019 0 7 0x4000000 syz-executor.0 13335 182155 84455 60929 3 0x3010 suspend syz-executor.1 13335 376769 84455 60929 2 0x4081010 syz-executor.1 4316 235179 1 0 3 0x100083 ttyin getty 84455 175612 66064 0 2 0x482 syz-executor.1 56104 460336 0 0 3 0x14200 bored sosplice 82019 325347 66064 0 3 0x82 nanosleep syz-executor.0 66064 368122 15365 0 3 0x82 kqread syz-fuzzer 66064 272562 15365 0 3 0x4000082 thrsleep syz-fuzzer 66064 35030 15365 0 3 0x4000082 thrsleep syz-fuzzer 66064 85116 15365 0 3 0x4000082 thrsleep syz-fuzzer 66064 43104 15365 0 3 0x4000082 thrsleep syz-fuzzer 66064 301666 15365 0 3 0x4000082 thrsleep syz-fuzzer 66064 158971 15365 0 3 0x4000082 thrsleep syz-fuzzer 66064 502120 15365 0 3 0x4000082 thrsleep syz-fuzzer 15365 249292 12180 0 3 0x10008a pause ksh 12180 446077 15794 0 3 0x92 select sshd 15794 178698 1 0 3 0x80 select sshd 57226 254103 59414 73 2 0x100090 syslogd 59414 361998 1 0 3 0x100082 netio syslogd 78249 431611 1 77 3 0x100090 poll dhclient 85727 208272 1 0 3 0x80 poll dhclient 56431 57619 0 0 2 0x14200 zerothread 10147 10936 0 0 3 0x14200 aiodoned aiodoned 11504 25634 0 0 3 0x14200 syncer update 38 88021 0 0 3 0x14200 cleaner cleaner 63627 206945 0 0 3 0x14200 reaper reaper 25097 368458 0 0 3 0x14200 pgdaemon pagedaemon 87018 141909 0 0 3 0x14200 bored crynlk 87057 124524 0 0 3 0x14200 bored crypto 35914 329565 0 0 3 0x40014200 acpi0 acpi0 44936 164163 0 0 3 0x14200 bored softnet 50720 9140 0 0 3 0x14200 bored systqmp 11077 446351 0 0 3 0x14200 bored systq 87755 270014 0 0 3 0x40014200 bored softclock 52212 76252 0 0 3 0x40014200 idle0 651 486402 0 0 3 0x14200 bored smr 1 255544 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 9526 6357K 14543K 78643K 21122 0 0 pcb 24 9K 11K 78643K 4079 0 0 rtable 122 5K 5K 78643K 1734 0 0 ifaddr 62 17K 19K 78643K 551 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 228 0 0 iov 0 0K 28K 78643K 745 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1199 75K 76K 78643K 6120 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 79 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 260 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 6 17K 25K 78643K 7641 0 0 sigio 1 0K 0K 78643K 87 0 0 proc 42 30K 54K 78643K 1121 0 0 subproc 32 2K 2K 78643K 85 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 591 0 0 in_multi 33 2K 2K 78643K 268 0 0 ether_multi 1 0K 0K 78643K 31 0 0 mrt 0 0K 0K 78643K 17 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 114 503K 503K 78643K 114 0 0 exec 0 0K 1K 78643K 670 0 0 pfkey data 0 0K 4K 78643K 4 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 84 20K 38K 78643K 18117 0 0 UVM aobj 130 5K 5K 78643K 149 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 224 0 0 NDP 13 0K 0K 78643K 149 0 0 temp 265 2717K 3346K 78643K 24960 0 0 kqueue 0 0K 0K 78643K 62 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 12 0 6 1 0 1 1 0 8 0 inpcbpl 280 2202 0 2195 2 1 1 2 0 8 0 plimitpl 152 151 0 144 1 0 1 1 0 8 0 rtentry 112 94 0 48 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 544 792 0 788 1 0 1 1 0 8 0 nd6 48 15 0 9 1 0 1 1 0 8 0 ppxss 1128 102 0 102 21 20 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 336 0 138 13 0 13 13 0 8 0 art_table 32 337 0 138 2 0 2 2 0 8 0 art_node 16 80 0 39 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 12 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 258 0 248 1 0 1 1 0 8 0 shmpl 112 147 0 19 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 13845 0 12357 49 0 49 49 0 8 0 ffsino 240 13845 0 12357 88 0 88 88 0 8 0 nchpl 144 24021 0 22398 61 0 61 61 0 8 0 uvmvnodes 72 6837 0 0 125 0 125 125 0 8 0 vnodes 200 6837 0 0 360 0 360 360 0 8 0 namei 1024 72821 0 72819 2 1 1 1 0 8 0 scsiplug 64 10 0 10 7 7 0 1 0 8 0 scxspl 192 72958 0 72958 29 28 1 6 0 8 1 sigapl 432 7813 0 7799 2 0 2 2 0 8 0 futexpl 56 97528 0 97528 1 0 1 1 0 8 1 knotepl 112 1674 0 1655 3 1 2 2 0 8 1 kqueuepl 104 1836 0 1834 1 0 1 1 0 8 0 pipepl 112 5288 0 5269 12 11 1 2 0 8 0 fdescpl 424 7814 0 7799 2 0 2 2 0 8 0 filepl 120 42871 0 42776 9 5 4 5 0 8 0 lockfpl 104 1979 0 1979 2 1 1 1 0 8 1 lockfspl 48 707 0 707 2 1 1 1 0 8 1 sessionpl 112 30 0 20 1 0 1 1 0 8 0 pgrppl 48 108 0 98 1 0 1 1 0 8 0 ucredpl 96 8249 0 8241 1 0 1 1 0 8 0 zombiepl 144 7799 0 7799 2 1 1 1 0 8 1 processpl 840 7829 0 7799 4 0 4 4 0 8 0 procpl 600 17004 0 16965 4 0 4 4 0 8 0 sosppl 128 79 0 79 19 19 0 1 0 8 0 sockpl 384 5973 0 5955 7 4 3 4 0 8 1 mcl64k 65536 386 0 386 45 44 1 29 0 8 1 mcl16k 16384 12 0 12 9 9 0 1 0 8 0 mcl12k 12288 98 0 98 16 15 1 1 0 8 1 mcl9k 9216 85 0 85 18 18 0 1 0 8 0 mcl8k 8192 66 0 66 22 22 0 1 0 8 0 mcl4k 4096 249 0 249 10 9 1 1 0 8 1 mcl2k2 2112 27 0 27 12 12 0 1 0 8 0 mcl2k 2048 59993 0 59950 28 22 6 11 0 8 0 mtagpl 80 4 0 4 2 2 0 1 0 8 0 mbufpl 256 133795 0 133665 36 26 10 19 0 8 1 bufpl 256 24121 0 17284 428 0 428 428 0 8 0 anonpl 16 593374 0 584588 174 134 40 54 0 62 0 amapchunkpl 152 30932 0 30839 76 71 5 14 0 158 0 amappl16 192 36976 0 36508 127 102 25 37 0 8 0 amappl15 184 10 0 10 1 1 0 1 0 8 0 amappl14 176 63 0 61 2 1 1 1 0 8 0 amappl13 168 8 0 7 1 0 1 1 0 8 0 amappl12 160 3846 0 3842 1 0 1 1 0 8 0 amappl11 152 58 0 44 1 0 1 1 0 8 0 amappl10 144 3246 0 3244 2 1 1 1 0 8 0 amappl9 136 1158 0 1153 1 0 1 1 0 8 0 amappl8 128 742 0 725 1 0 1 1 0 8 0 amappl7 120 3201 0 3196 1 0 1 1 0 8 0 amappl6 112 57 0 51 1 0 1 1 0 8 0 amappl5 104 3971 0 3960 1 0 1 1 0 8 0 amappl4 96 7913 0 7889 1 0 1 1 0 8 0 amappl3 88 661 0 650 1 0 1 1 0 8 0 amappl2 80 61100 0 61025 4 2 2 3 0 8 0 amappl1 72 137034 0 136617 29 21 8 19 0 8 0 amappl 80 17350 0 17314 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 64 148 0 19 3 0 3 3 0 8 0 uaddrrnd 24 7814 0 7799 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7814 0 7799 1 0 1 1 0 8 0 vmmpekpl 168 45426 0 45400 2 0 2 2 0 8 0 vmmpepl 168 760791 0 759275 162 94 68 79 0 357 2 vmsppl 264 7813 0 7799 2 1 1 2 0 8 0 pdppl 4096 15634 0 15598 6 1 5 6 0 8 0 pvpl 32 1849405 0 1837395 475 282 193 234 0 265 89 pmappl 200 7813 0 7799 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 694 0 136 16 0 16 16 0 8 0