uvm_fault(0xfffffd803f013b58, 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(0xfffffd803f013b58, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff8000159e69b0, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009f9600,ffff8000159e6a68,ffff8000159e69c0,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd80303c3100,fffffd8036fe9900,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd8036fe9900,9,fffffd80303c3100,0,0,ffff8000ffff8008) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd8036fe9900,0,ffff8000159e6c60,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff8000ffff8008,3,ffff8000159e6d40,0,ffff8000159e6e50) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff8000ffff8008,ffff8000159e6de8,ffff8000159e6e50) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff8000159e6ec0) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,cd4f11ec010) at Xsyscall+0x128 end of kernel end trace frame: 0xcd758880250, count: -9 ddb> show registers rdi 0xffffffff819af1c7 arp_rtrequest+0x157 rsi 0x191 rbp 0xffff8000159e6910 rbx 0xffff800000025140 rdx 0x192 rcx 0xdeafbeaddeafbead rax 0xffff800000025148 r8 0x40 r9 0x5 r10 0xffff800000994980 r11 0x912e9efc12c1b76b r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd80302158c8 r15 0x100000000 rip 0xffffffff819af1cf arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000159e6890 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.0) pid=481817 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff99d0,0xffffffff8227f910 process=0xffff8000ffff7078 user=0xffff8000159e1000, vmspace=0xfffffd803f013b58 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 87640 213808 15560 0 2 0 syz-executor.0 *87640 481817 15560 0 7 0x4000000 syz-executor.0 98801 69998 0 0 3 0x14200 bored sosplice 15560 467106 90648 0 3 0x82 nanosleep syz-executor.0 26980 124092 90648 0 2 0x2 syz-executor.1 90648 60881 33427 0 3 0x82 thrsleep syz-fuzzer 90648 186486 33427 0 3 0x4000082 nanosleep syz-fuzzer 90648 68354 33427 0 3 0x4000082 thrsleep syz-fuzzer 90648 279514 33427 0 3 0x4000082 thrsleep syz-fuzzer 90648 158308 33427 0 3 0x4000082 kqread syz-fuzzer 90648 345584 33427 0 3 0x4000082 thrsleep syz-fuzzer 90648 432797 33427 0 3 0x4000082 thrsleep syz-fuzzer 33427 467118 13604 0 3 0x10008a pause ksh 13604 222180 26298 0 3 0x92 select sshd 75814 414324 1 0 3 0x100083 ttyin getty 26298 329496 1 0 3 0x80 select sshd 57815 11018 76316 73 2 0x100090 syslogd 76316 106204 1 0 3 0x100082 netio syslogd 30419 469114 1 77 3 0x100090 poll dhclient 70928 489653 1 0 3 0x80 poll dhclient 9928 401721 0 0 2 0x14200 zerothread 60857 236603 0 0 3 0x14200 aiodoned aiodoned 13026 116023 0 0 3 0x14200 syncer update 9695 292512 0 0 3 0x14200 cleaner cleaner 88498 326680 0 0 3 0x14200 reaper reaper 66082 401750 0 0 3 0x14200 pgdaemon pagedaemon 16976 14192 0 0 3 0x14200 bored crynlk 81865 118800 0 0 3 0x14200 bored crypto 43343 401907 0 0 3 0x40014200 acpi0 acpi0 54131 384667 0 0 3 0x14200 bored softnet 74305 44578 0 0 3 0x14200 bored systqmp 41113 331817 0 0 3 0x14200 bored systq 55252 119887 0 0 3 0x40014200 bored softclock 59268 205219 0 0 3 0x40014200 idle0 85047 93336 0 0 3 0x14200 bored smr 1 89529 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 9481 6332K 6976K 78643K 13887 0 0 pcb 24 9K 11K 78643K 843 0 0 rtable 113 4K 4K 78643K 734 0 0 ifaddr 49 12K 13K 78643K 112 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 63 0 0 iov 0 0K 16K 78643K 121 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1198 75K 76K 78643K 2746 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 16 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 1827 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 2623 0 0 sigio 0 0K 0K 78643K 12 0 0 proc 41 30K 54K 78643K 399 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 141 0 0 in_multi 33 2K 2K 78643K 93 0 0 ether_multi 1 0K 0K 78643K 14 0 0 mrt 0 0K 0K 78643K 1 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 1193 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 81 20K 25K 78643K 7338 0 0 UVM aobj 53 2K 2K 78643K 57 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 64 0 0 NDP 9 0K 0K 78643K 29 0 0 temp 224 2711K 2782K 78643K 9421 0 0 kqueue 0 0K 0K 78643K 12 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 280 451 0 444 1 0 1 1 0 8 0 plimitpl 152 32 0 25 1 0 1 1 0 8 0 rtentry 112 49 0 4 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 183 0 179 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 16 0 16 6 5 1 1 0 8 1 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 45 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 2 1 0 1 1 0 8 0 semapl 112 1820 0 1810 1 0 1 1 0 8 0 shmpl 112 55 0 4 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5728 0 4312 46 0 46 46 0 8 0 ffsino 240 5728 0 4312 84 0 84 84 0 8 0 nchpl 144 10357 0 8727 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 26275 0 26275 3 2 1 1 0 8 1 scxspl 192 24891 0 24891 13 12 1 5 0 8 1 sigapl 432 2794 0 2781 2 0 2 2 0 8 0 futexpl 56 51203 0 51203 2 1 1 1 0 8 1 knotepl 112 233 0 214 1 0 1 1 0 8 0 kqueuepl 104 239 0 237 1 0 1 1 0 8 0 pipepl 112 828 0 809 5 4 1 2 0 8 0 fdescpl 424 2795 0 2781 2 0 2 2 0 8 0 filepl 120 12011 0 11916 7 3 4 5 0 8 1 lockfpl 104 1357 0 1357 3 2 1 1 0 8 1 lockfspl 48 596 0 596 3 2 1 1 0 8 1 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 2515 0 2508 1 0 1 1 0 8 0 zombiepl 144 2781 0 2781 2 1 1 1 0 8 1 processpl 840 2810 0 2781 4 0 4 4 0 8 0 procpl 600 6607 0 6571 4 0 4 4 0 8 1 sosppl 128 6 0 6 3 3 0 1 0 8 0 sockpl 384 1227 0 1209 8 5 3 4 0 8 1 mcl64k 65536 31 0 31 7 6 1 1 0 8 1 mcl12k 12288 22 0 22 7 7 0 1 0 8 0 mcl9k 9216 15 0 15 3 2 1 1 0 8 1 mcl8k 8192 8 0 8 4 3 1 1 0 8 1 mcl4k 4096 745 0 745 5 4 1 1 0 8 1 mcl2k2 2112 2 0 2 2 2 0 1 0 8 0 mcl2k 2048 55101 0 55065 16 10 6 9 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 100125 0 99972 14 3 11 11 0 8 0 bufpl 256 9616 0 5136 281 0 281 281 0 8 0 anonpl 16 202954 0 193755 86 44 42 54 0 62 4 amapchunkpl 152 11772 0 11687 22 17 5 18 0 158 0 amappl16 192 12644 0 12145 66 40 26 38 0 8 0 amappl14 176 38 0 35 2 1 1 1 0 8 0 amappl13 168 2590 0 2587 1 0 1 1 0 8 0 amappl12 160 6 0 6 1 1 0 1 0 8 0 amappl11 152 51 0 36 1 0 1 1 0 8 0 amappl10 144 59 0 58 2 1 1 1 0 8 0 amappl9 136 550 0 546 1 0 1 1 0 8 0 amappl8 128 124 0 111 1 0 1 1 0 8 0 amappl7 120 32 0 29 1 0 1 1 0 8 0 amappl6 112 54 0 45 1 0 1 1 0 8 0 amappl5 104 151 0 141 1 0 1 1 0 8 0 amappl4 96 3848 0 3826 1 0 1 1 0 8 0 amappl3 88 207 0 196 1 0 1 1 0 8 0 amappl2 80 23068 0 23000 4 2 2 3 0 8 0 amappl1 72 57207 0 56795 25 15 10 19 0 8 0 amappl 80 6862 0 6829 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 56 0 4 1 0 1 1 0 8 0 uaddrrnd 24 2795 0 2781 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2795 0 2781 1 0 1 1 0 8 0 vmmpekpl 168 18895 0 18870 2 0 2 2 0 8 0 vmmpepl 168 280214 0 278750 118 49 69 79 0 357 3 vmsppl 264 2794 0 2781 2 1 1 2 0 8 0 pdppl 4096 5596 0 5562 6 1 5 6 0 8 0 pvpl 32 579951 0 567728 193 72 121 137 0 265 20 pmappl 200 2794 0 2781 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 440 0 31 12 0 12 12 0 8 0