uvm_fault(0xfffffd803f00b000, 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(0xfffffd803f00b000, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff8000149efb30, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009a4a00,ffff8000149efbe8,ffff8000149efb40,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd8036b48000,fffffd80363e5d88,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd80363e5d88,9,fffffd8036b48000,0,0,ffff800014950e28) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd80363e5d88,0,ffff8000149efde0,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800014950e28,3,ffff8000149efec0,0,ffff8000149effd0) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800014950e28,ffff8000149eff68,ffff8000149effd0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff8000149f0040) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,5d0abd59010) at Xsyscall+0x128 end of kernel end trace frame: 0x5d2e64e4350, count: -9 ddb> show registers rdi 0xffffffff812f5717 arp_rtrequest+0x157 rsi 0x179 rbp 0xffff8000149efa90 rbx 0xffff80000005b640 rdx 0x17a rcx 0xdeaf4152deaf4152 rax 0xffff80000005b648 r8 0x40 r9 0x5 r10 0xffff80000098fd00 r11 0x50c0ed6035e11ad6 r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd8035157698 r15 0x100000000 rip 0xffffffff812f571f arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000149efa10 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.0) pid=108381 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800014950270,0xffffffff822ccf20 process=0xffff8000ffff69e8 user=0xffff8000149eb000, vmspace=0xfffffd803f00b000 estcpu=36, cpticks=6, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22725 37281 32592 0 2 0 syz-executor.0 *22725 108381 32592 0 7 0x4000000 syz-executor.0 25161 102942 1 0 3 0x100083 ttyin getty 3593 187602 0 0 3 0x14200 bored sosplice 32592 304721 10218 0 2 0x482 syz-executor.0 83915 247046 10218 0 2 0x482 syz-executor.1 10218 327007 17001 0 3 0x82 thrsleep syz-fuzzer 10218 34441 17001 0 3 0x4000082 thrsleep syz-fuzzer 10218 364830 17001 0 3 0x4000082 thrsleep syz-fuzzer 10218 249823 17001 0 3 0x4000082 thrsleep syz-fuzzer 10218 441072 17001 0 3 0x4000082 thrsleep syz-fuzzer 10218 396671 17001 0 3 0x4000082 kqread syz-fuzzer 10218 461398 17001 0 3 0x4000082 thrsleep syz-fuzzer 10218 319497 17001 0 3 0x4000082 thrsleep syz-fuzzer 17001 376381 88351 0 3 0x10008a pause ksh 88351 431041 99656 0 3 0x92 select sshd 99656 289503 1 0 3 0x80 select sshd 84784 2318 72309 73 2 0x100090 syslogd 72309 77777 1 0 3 0x100082 netio syslogd 30902 182172 1 77 3 0x100090 poll dhclient 64853 207454 1 0 3 0x80 poll dhclient 40457 523205 0 0 2 0x14200 zerothread 4081 360586 0 0 3 0x14200 aiodoned aiodoned 22975 210694 0 0 3 0x14200 syncer update 95178 426360 0 0 3 0x14200 cleaner cleaner 7184 67204 0 0 3 0x14200 reaper reaper 90204 71641 0 0 3 0x14200 pgdaemon pagedaemon 88703 194986 0 0 3 0x14200 bored crynlk 59181 85806 0 0 3 0x14200 bored crypto 14527 439753 0 0 3 0x40014200 acpi0 acpi0 7259 192058 0 0 3 0x14200 bored softnet 25390 443287 0 0 3 0x14200 bored systqmp 5259 456141 0 0 3 0x14200 bored systq 74252 129473 0 0 3 0x40014200 bored softclock 25173 99713 0 0 3 0x40014200 idle0 79565 197438 0 0 3 0x14200 bored smr 1 259838 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 9500 6355K 14676K 78643K 14218 0 0 pcb 24 9K 10K 78643K 1023 0 0 rtable 119 5K 5K 78643K 543 0 0 ifaddr 56 13K 14K 78643K 202 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 81 0 0 iov 0 0K 28K 78643K 540 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1212 76K 77K 78643K 2756 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 25 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 2K 78643K 370 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 2420 0 0 sigio 0 0K 0K 78643K 32 0 0 proc 42 30K 46K 78643K 1617 0 0 subproc 32 2K 2K 78643K 36 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 217 0 0 in_multi 33 2K 2K 78643K 119 0 0 ether_multi 1 0K 0K 78643K 12 0 0 mrt 0 0K 0K 78643K 11 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 72 318K 318K 78643K 72 0 0 exec 0 0K 1K 78643K 303 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 39K 78643K 6774 0 0 UVM aobj 75 3K 3K 78643K 89 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 59 0 0 NDP 11 0K 0K 78643K 52 0 0 temp 166 2715K 3351K 78643K 9709 0 0 kqueue 0 0K 0K 78643K 17 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 280 824 0 817 1 0 1 1 0 8 0 plimitpl 152 56 0 48 1 0 1 1 0 8 0 rtentry 112 53 0 8 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 278 0 274 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 33 0 33 10 9 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 195 0 0 13 0 13 13 0 8 0 art_table 32 196 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0 semupl 112 54 0 54 1 1 0 1 0 8 0 semapl 112 358 0 348 1 0 1 1 0 8 0 shmpl 112 87 0 14 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5268 0 3826 47 0 47 47 0 8 0 ffsino 240 5268 0 3826 86 0 86 86 0 8 0 nchpl 144 9246 0 7611 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 27914 0 27914 2 1 1 1 0 8 1 scsiplug 64 2 0 2 2 2 0 1 0 8 0 scxspl 192 50270 0 50270 18 17 1 6 0 8 1 sigapl 432 2594 0 2581 2 0 2 2 0 8 0 futexpl 56 35693 0 35693 1 0 1 1 0 8 1 knotepl 112 405 0 386 1 0 1 1 0 8 0 kqueuepl 104 461 0 459 1 0 1 1 0 8 0 pipepl 112 1260 0 1241 5 4 1 2 0 8 0 fdescpl 424 2595 0 2581 2 0 2 2 0 8 0 filepl 120 14319 0 14221 6 2 4 5 0 8 0 lockfpl 104 1506 0 1506 2 1 1 1 0 8 1 lockfspl 48 642 0 642 2 1 1 1 0 8 1 sessionpl 112 20 0 10 1 0 1 1 0 8 0 pgrppl 48 44 0 34 1 0 1 1 0 8 0 ucredpl 96 2640 0 2633 1 0 1 1 0 8 0 zombiepl 144 2581 0 2580 2 1 1 1 0 8 0 processpl 840 2610 0 2580 4 0 4 4 0 8 0 procpl 600 6012 0 5974 4 0 4 4 0 8 0 sosppl 128 39 0 39 10 10 0 1 0 8 0 sockpl 384 1697 0 1679 3 0 3 3 0 8 1 mcl64k 65536 323 0 323 39 38 1 32 0 8 1 mcl16k 16384 5 0 5 5 5 0 1 0 8 0 mcl12k 12288 43 0 43 6 5 1 1 0 8 1 mcl9k 9216 25 0 25 9 8 1 1 0 8 1 mcl8k 8192 35 0 35 9 8 1 1 0 8 1 mcl4k 4096 76 0 76 6 5 1 1 0 8 1 mcl2k2 2112 27 0 27 8 7 1 1 0 8 1 mcl2k 2048 55807 0 55764 16 9 7 10 0 8 1 mtagpl 80 6 0 4 2 1 1 1 0 8 0 mbufpl 256 101562 0 101498 23 16 7 21 0 8 0 bufpl 256 22819 0 17120 357 0 357 357 0 8 0 anonpl 16 275224 0 265616 111 67 44 56 0 62 3 amapchunkpl 152 11106 0 11012 31 21 10 14 0 158 5 amappl16 192 16446 0 15936 101 73 28 38 0 8 1 amappl15 184 8 0 7 1 0 1 1 0 8 0 amappl14 176 35 0 33 2 1 1 1 0 8 0 amappl13 168 2 0 1 1 0 1 1 0 8 0 amappl12 160 12 0 11 1 0 1 1 0 8 0 amappl11 152 1317 0 1301 1 0 1 1 0 8 0 amappl10 144 1192 0 1188 2 1 1 1 0 8 0 amappl9 136 541 0 537 1 0 1 1 0 8 0 amappl8 128 136 0 120 1 0 1 1 0 8 0 amappl7 120 1162 0 1156 1 0 1 1 0 8 0 amappl6 112 1297 0 1291 1 0 1 1 0 8 0 amappl5 104 162 0 152 1 0 1 1 0 8 0 amappl4 96 2744 0 2717 1 0 1 1 0 8 0 amappl3 88 249 0 238 1 0 1 1 0 8 0 amappl2 80 20053 0 19987 4 2 2 3 0 8 0 amappl1 72 54392 0 53983 25 15 10 19 0 8 0 amappl 80 6257 0 6222 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 88 0 14 2 0 2 2 0 8 0 uaddrrnd 24 2595 0 2581 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2595 0 2581 1 0 1 1 0 8 0 vmmpekpl 168 20975 0 20951 2 0 2 2 0 8 0 vmmpepl 168 268046 0 266559 152 81 71 94 0 357 1 vmsppl 264 2594 0 2581 2 1 1 2 0 8 0 pdppl 4096 5197 0 5162 6 1 5 6 0 8 0 pvpl 32 802364 0 789160 269 136 133 207 0 265 26 pmappl 200 2594 0 2581 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 569 0 85 14 0 14 14 0 8 0