uvm_fault(0xfffffd803f00ce70, 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(0xfffffd803f00ce70, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800015fe6030, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009efc00,ffff800015fe60e8,ffff800015fe6040,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd803f028400,fffffd8039c91180,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd8039c91180,9,fffffd803f028400,0,0,ffff8000ffff8710) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd8039c91180,0,ffff800015fe62e0,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff8710,3,ffff800015fe63c0,0,ffff800015fe64d0) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff8710,ffff800015fe6468,ffff800015fe64d0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800015fe6540) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,da9279c5010) at Xsyscall+0x128 end of kernel end trace frame: 0xdabe423c300, count: -9 ddb> show registers rdi 0xffffffff817346a7 arp_rtrequest+0x157 rsi 0x195 rbp 0xffff800015fe5f90 rbx 0xffff800000025120 rdx 0x196 rcx 0xdeafbeaddeafbead rax 0xffff800000025128 r8 0x40 r9 0x5 r10 0xffff80000098fec0 r11 0xaa6118471fe73c76 r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd803d170698 r15 0x100000000 rip 0xffffffff817346af arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015fe5f10 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.1) pid=392499 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8008,0xffffffff822c7180 process=0xffff8000ffff7708 user=0xffff800015fe1000, vmspace=0xfffffd803f00ce70 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 56054 386617 87106 0 2 0 syz-executor.1 *56054 392499 87106 0 7 0x4000000 syz-executor.1 83660 80021 1 0 3 0x100083 ttyin getty 22327 240550 0 0 3 0x14200 bored sosplice 84483 376265 60041 0 2 0x2 syz-executor.0 87106 443300 60041 0 3 0x82 nanosleep syz-executor.1 60041 108575 72210 0 3 0x82 thrsleep syz-fuzzer 60041 163429 72210 0 3 0x4000082 nanosleep syz-fuzzer 60041 121286 72210 0 3 0x4000082 thrsleep syz-fuzzer 60041 166881 72210 0 3 0x4000082 thrsleep syz-fuzzer 60041 275889 72210 0 3 0x4000082 thrsleep syz-fuzzer 60041 428729 72210 0 3 0x4000082 kqread syz-fuzzer 60041 369513 72210 0 3 0x4000082 thrsleep syz-fuzzer 72210 238584 96214 0 3 0x10008a pause ksh 96214 406450 8060 0 3 0x92 select sshd 8060 414328 1 0 3 0x80 select sshd 13554 139452 12780 73 2 0x100090 syslogd 12780 259704 1 0 3 0x100082 netio syslogd 80038 85937 1 77 3 0x100090 poll dhclient 64341 396771 1 0 3 0x80 poll dhclient 48230 22304 0 0 2 0x14200 zerothread 36832 205388 0 0 3 0x14200 aiodoned aiodoned 8264 490334 0 0 3 0x14200 syncer update 1850 87761 0 0 3 0x14200 cleaner cleaner 1700 159879 0 0 3 0x14200 reaper reaper 38344 388147 0 0 3 0x14200 pgdaemon pagedaemon 19417 419652 0 0 3 0x14200 bored crynlk 84066 139459 0 0 3 0x14200 bored crypto 39198 482749 0 0 3 0x40014200 acpi0 acpi0 59603 238074 0 0 3 0x14200 bored softnet 56131 520598 0 0 3 0x14200 bored systqmp 7120 236803 0 0 3 0x14200 bored systq 98254 430031 0 0 3 0x40014200 bored softclock 93098 289541 0 0 3 0x40014200 idle0 15905 454038 0 0 3 0x14200 bored smr 1 450091 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 9498 6346K 7239K 78643K 15424 0 0 pcb 24 9K 11K 78643K 2212 0 0 rtable 127 5K 5K 78643K 1847 0 0 ifaddr 57 14K 15K 78643K 431 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 45 0 0 iov 0 0K 24K 78643K 364 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1200 75K 76K 78643K 3477 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 18 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 12 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 4197 0 0 sigio 0 0K 0K 78643K 81 0 0 proc 42 30K 54K 78643K 464 0 0 subproc 32 2K 2K 78643K 34 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 250 0 0 in_multi 33 2K 2K 78643K 192 0 0 ether_multi 1 0K 0K 78643K 15 0 0 mrt 0 0K 0K 78643K 2 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 84 371K 371K 78643K 84 0 0 exec 0 0K 1K 78643K 383 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 81 20K 29K 78643K 10342 0 0 UVM aobj 48 2K 2K 78643K 52 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 127 0 0 NDP 11 0K 0K 78643K 117 0 0 temp 251 2712K 3351K 78643K 14271 0 0 kqueue 0 0K 0K 78643K 21 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 1265 0 1258 1 0 1 1 0 8 0 plimitpl 152 113 0 106 1 0 1 1 0 8 0 rtentry 112 64 0 17 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 414 0 410 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 88 0 87 3 2 1 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 32 0 0 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 50 0 4 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 8148 0 6716 48 1 47 47 0 8 0 ffsino 240 8148 0 6716 85 0 85 85 0 8 0 nchpl 144 13221 0 11600 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 34617 0 34617 7 6 1 1 0 8 1 scsiplug 64 5 0 5 3 3 0 1 0 8 0 scxspl 192 48247 0 48247 19 16 3 7 0 8 3 sigapl 432 4369 0 4356 2 0 2 2 0 8 0 futexpl 56 31239 0 31239 6 5 1 1 0 8 1 knotepl 112 651 0 632 1 0 1 1 0 8 0 kqueuepl 104 597 0 595 1 0 1 1 0 8 0 pipepl 112 724 0 705 5 4 1 2 0 8 0 fdescpl 424 4370 0 4356 2 0 2 2 0 8 0 filepl 120 16699 0 16603 6 2 4 5 0 8 1 lockfpl 104 977 0 977 5 4 1 1 0 8 1 lockfspl 48 334 0 334 5 4 1 1 0 8 1 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 55 0 45 1 0 1 1 0 8 0 ucredpl 96 3923 0 3916 1 0 1 1 0 8 0 zombiepl 144 4356 0 4356 2 1 1 1 0 8 1 processpl 840 4385 0 4356 4 0 4 4 0 8 0 procpl 600 9381 0 9345 8 4 4 4 0 8 1 sosppl 128 49 0 49 6 6 0 1 0 8 0 sockpl 384 3252 0 3234 8 5 3 4 0 8 1 mcl64k 65536 995 0 991 30 29 1 29 0 8 0 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 4 0 4 1 1 0 1 0 8 0 mcl9k 9216 41 0 41 8 8 0 1 0 8 0 mcl8k 8192 18 0 18 7 7 0 1 0 8 0 mcl4k 4096 103 0 103 7 6 1 1 0 8 1 mcl2k2 2112 14 0 14 5 5 0 1 0 8 0 mcl2k 2048 21352 0 21322 26 21 5 8 0 8 0 mtagpl 80 4 0 4 2 2 0 1 0 8 0 mbufpl 256 78257 0 78081 33 19 14 22 0 8 2 bufpl 256 17619 0 13074 285 0 285 285 0 8 0 anonpl 16 376119 0 372335 95 75 20 32 0 62 1 amapchunkpl 152 18068 0 17991 25 20 5 9 0 158 0 amappl16 192 20306 0 20146 64 54 10 21 0 8 0 amappl15 184 2062 0 2061 1 0 1 1 0 8 0 amappl14 176 2099 0 2094 2 1 1 1 0 8 0 amappl13 168 1 0 0 1 0 1 1 0 8 0 amappl12 160 14 0 12 1 0 1 1 0 8 0 amappl11 152 2161 0 2144 1 0 1 1 0 8 0 amappl10 144 61 0 59 2 1 1 1 0 8 0 amappl9 136 427 0 423 1 0 1 1 0 8 0 amappl8 128 139 0 120 1 0 1 1 0 8 0 amappl7 120 30 0 27 1 0 1 1 0 8 0 amappl6 112 2171 0 2162 1 0 1 1 0 8 0 amappl5 104 388 0 378 1 0 1 1 0 8 0 amappl4 96 4520 0 4495 1 0 1 1 0 8 0 amappl3 88 202 0 191 1 0 1 1 0 8 0 amappl2 80 36260 0 36193 4 2 2 3 0 8 0 amappl1 72 80656 0 80240 26 17 9 19 0 8 0 amappl 80 9700 0 9669 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 51 0 4 1 0 1 1 0 8 0 uaddrrnd 24 4370 0 4356 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4370 0 4356 1 0 1 1 0 8 0 vmmpekpl 168 21300 0 21274 2 0 2 2 0 8 0 vmmpepl 168 425617 0 424480 140 85 55 74 0 357 2 vmsppl 264 4369 0 4356 2 1 1 2 0 8 0 pdppl 4096 8747 0 8712 6 1 5 6 0 8 0 pvpl 32 1011555 0 1004770 223 143 80 102 0 265 23 pmappl 200 4369 0 4356 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 507 0 92 13 0 13 13 0 8 0