login: uvm_fault(0xfffffd803f00cd68, 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(0xfffffd803f00cd68, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800015a0bc50, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009ce000,ffff800015a0bd08,ffff800015a0bc60,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd8034a1b000,fffffd8036fdd780,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd8036fdd780,9,fffffd8034a1b000,0,0,ffff800018dfee28) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd8036fdd780,0,ffff800015a0bf00,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800018dfee28,4,ffff800015a0bfe0,0,ffff800015a0c0f0) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800018dfee28,ffff800015a0c088,ffff800015a0c0f0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800015a0c160) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,80ac4189010) at Xsyscall+0x128 end of kernel end trace frame: 0x80d40ab5dd0, count: -9 ddb> show registers rdi 0xffffffff817346a7 arp_rtrequest+0x157 rsi 0x195 rbp 0xffff800015a0bbb0 rbx 0xffff800000025190 rdx 0x196 rcx 0xdeafbeaddeafbead rax 0xffff800000025198 r8 0x40 r9 0x5 r10 0xffff800000994b00 r11 0xdb096242d15a61c0 r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd803be2a7e8 r15 0x100000000 rip 0xffffffff817346af arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015a0bb30 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.1) pid=480238 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800018dff530,0xffffffff822c7180 process=0xffff8000ffff6010 user=0xffff800015a07000, vmspace=0xfffffd803f00cd68 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67691 145509 44553 0 2 0 syz-executor.1 *67691 480238 44553 0 7 0x4000000 syz-executor.1 20537 286265 33283 0 3 0x80 nanosleep syz-executor.0 20537 64843 33283 0 3 0x4000080 nanosleep syz-executor.0 20537 134622 33283 0 3 0x4000080 fsleep syz-executor.0 83918 11446 1 0 3 0x100083 ttyin getty 20119 182893 0 0 3 0x14200 bored sosplice 33283 134107 44598 0 3 0x82 nanosleep syz-executor.0 44553 132246 44598 0 3 0x82 nanosleep syz-executor.1 44598 503410 70504 0 3 0x82 thrsleep syz-fuzzer 44598 84651 70504 0 3 0x4000082 thrsleep syz-fuzzer 44598 169534 70504 0 3 0x4000082 thrsleep syz-fuzzer 44598 162726 70504 0 3 0x4000082 thrsleep syz-fuzzer 44598 287402 70504 0 3 0x4000082 kqread syz-fuzzer 44598 269464 70504 0 3 0x4000082 thrsleep syz-fuzzer 44598 376440 70504 0 3 0x4000082 thrsleep syz-fuzzer 70504 17247 98531 0 3 0x10008a pause ksh 98531 255427 73848 0 3 0x92 select sshd 73848 42813 1 0 3 0x80 select sshd 74228 339282 86241 73 2 0x100090 syslogd 86241 219662 1 0 3 0x100082 netio syslogd 37613 400115 1 77 3 0x100090 poll dhclient 50814 161380 1 0 3 0x80 poll dhclient 30201 512806 0 0 2 0x14200 zerothread 24494 185295 0 0 3 0x14200 aiodoned aiodoned 42902 239496 0 0 3 0x14200 syncer update 31185 318239 0 0 3 0x14200 cleaner cleaner 77311 384973 0 0 3 0x14200 reaper reaper 38563 161375 0 0 3 0x14200 pgdaemon pagedaemon 83434 90848 0 0 3 0x14200 bored crynlk 32209 128243 0 0 3 0x14200 bored crypto 85460 92697 0 0 3 0x40014200 acpi0 acpi0 6935 114654 0 0 3 0x14200 bored softnet 22813 513022 0 0 3 0x14200 bored systqmp 19894 447912 0 0 3 0x14200 bored systq 44121 412638 0 0 3 0x40014200 bored softclock 82656 322777 0 0 3 0x40014200 idle0 77617 476920 0 0 3 0x14200 bored smr 1 393188 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 9512 6424K 14550K 78643K 20036 0 0 pcb 24 9K 11K 78643K 1996 0 0 rtable 119 5K 5K 78643K 834 0 0 ifaddr 56 14K 15K 78643K 372 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 159 0 0 iov 0 0K 24K 78643K 463 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1203 76K 76K 78643K 5632 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 46 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 302 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 6 17K 25K 78643K 4711 0 0 sigio 0 0K 0K 78643K 51 0 0 proc 42 30K 46K 78643K 716 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 403 0 0 in_multi 33 2K 2K 78643K 144 0 0 ether_multi 1 0K 0K 78643K 17 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 102 450K 450K 78643K 102 0 0 exec 0 0K 1K 78643K 432 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 89 20K 30K 78643K 11610 0 0 UVM aobj 130 8K 8K 78643K 158 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 152 0 0 NDP 11 0K 0K 78643K 99 0 0 temp 169 2715K 2783K 78643K 16577 0 0 kqueue 0 0K 0K 78643K 40 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 1509 0 1502 1 0 1 1 0 8 0 plimitpl 152 109 0 102 1 0 1 1 0 8 0 rtentry 112 55 0 10 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 559 0 555 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 swfcl 56 1 0 0 1 0 1 1 0 8 0 ppxss 1128 69 0 69 16 15 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 1 0 1 1 1 0 1 0 8 0 semapl 112 298 0 288 1 0 1 1 0 8 0 shmpl 112 156 0 28 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 9639 0 8198 47 0 47 47 0 8 0 ffsino 240 9639 0 8198 86 1 85 86 0 8 0 nchpl 144 16233 0 14606 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 49131 0 49131 3 2 1 1 0 8 1 scsiplug 64 8 0 8 6 6 0 1 0 8 0 scxspl 192 48240 0 48240 18 17 1 6 0 8 1 sigapl 432 4890 0 4876 2 0 2 2 0 8 0 futexpl 56 66056 0 66055 2 1 1 1 0 8 0 knotepl 112 764 0 745 1 0 1 1 0 8 0 kqueuepl 104 917 0 915 1 0 1 1 0 8 0 pipepl 112 2502 0 2483 9 8 1 2 0 8 0 fdescpl 424 4891 0 4876 2 0 2 2 0 8 0 filepl 120 26586 0 26489 5 1 4 5 0 8 1 lockfpl 104 1595 0 1595 3 2 1 1 0 8 1 lockfspl 48 540 0 540 3 2 1 1 0 8 1 sessionpl 112 25 0 15 1 0 1 1 0 8 0 pgrppl 48 65 0 55 1 0 1 1 0 8 0 ucredpl 96 5605 0 5598 1 0 1 1 0 8 0 zombiepl 144 4876 0 4876 2 1 1 1 0 8 1 processpl 840 4906 0 4876 4 0 4 4 0 8 0 procpl 600 10726 0 10687 4 0 4 4 0 8 0 sosppl 128 45 0 45 12 11 1 1 0 8 1 sockpl 384 3305 0 3287 6 3 3 4 0 8 1 mcl64k 65536 1382 0 1382 164 120 44 65 0 8 44 mcl16k 16384 12 0 12 11 11 0 1 0 8 0 mcl12k 12288 57 0 57 16 15 1 1 0 8 1 mcl9k 9216 59 0 59 12 12 0 1 0 8 0 mcl8k 8192 38 0 38 13 12 1 1 0 8 1 mcl4k 4096 190 0 190 7 6 1 1 0 8 1 mcl2k2 2112 20 0 20 10 9 1 1 0 8 1 mcl2k 2048 59383 0 59341 20 14 6 12 0 8 0 mtagpl 80 10 0 10 2 2 0 1 0 8 0 mbufpl 256 119964 0 119914 84 79 5 38 0 8 0 bufpl 256 16499 0 10807 356 0 356 356 0 8 0 anonpl 16 398291 0 388582 191 150 41 71 0 62 0 amapchunkpl 152 20097 0 19998 76 67 9 23 0 158 4 amappl16 192 23748 0 23230 148 120 28 38 0 8 2 amappl15 184 9 0 8 1 0 1 1 0 8 0 amappl14 176 38 0 35 2 1 1 1 0 8 0 amappl12 160 13 0 12 1 0 1 1 0 8 0 amappl11 152 2339 0 2322 1 0 1 1 0 8 0 amappl10 144 2470 0 2467 2 1 1 1 0 8 0 amappl9 136 555 0 552 1 0 1 1 0 8 0 amappl8 128 140 0 124 1 0 1 1 0 8 0 amappl7 120 2431 0 2426 1 0 1 1 0 8 0 amappl6 112 2297 0 2289 1 0 1 1 0 8 0 amappl5 104 164 0 153 1 0 1 1 0 8 0 amappl4 96 5044 0 5020 1 0 1 1 0 8 0 amappl3 88 297 0 286 1 0 1 1 0 8 0 amappl2 80 38293 0 38220 4 2 2 3 0 8 0 amappl1 72 88804 0 88373 26 17 9 19 0 8 0 amappl 80 10993 0 10955 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 64 157 0 28 3 0 3 3 0 8 0 uaddrrnd 24 4891 0 4876 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4891 0 4876 1 0 1 1 0 8 0 vmmpekpl 168 27098 0 27073 2 0 2 2 0 8 0 vmmpepl 168 478951 0 477372 180 109 71 95 0 357 2 vmsppl 264 4890 0 4876 2 1 1 2 0 8 0 pdppl 4096 9789 0 9752 6 1 5 6 0 8 0 pvpl 32 1143678 0 1130806 360 235 125 216 0 265 19 pmappl 200 4890 0 4876 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 770 0 248 18 1 17 17 0 8 0