uvm_fault(0xfffffd803f013c60, 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(0xfffffd803f013c60, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800017c09f70, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009fc600,ffff800017c0a028,ffff800017c09f80,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd8038d83b00,fffffd8038f3a480,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd8038f3a480,9,fffffd8038d83b00,0,0,ffff80001493cbd8) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd8038f3a480,0,ffff800017c0a220,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff80001493cbd8,3,ffff800017c0a300,0,ffff800017c0a410) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff80001493cbd8,ffff800017c0a3a8,ffff800017c0a410) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800017c0a480) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,739f68a1010) at Xsyscall+0x128 end of kernel end trace frame: 0x73c633d3dc0, count: -9 ddb> show registers rdi 0xffffffff81d28db7 arp_rtrequest+0x157 rsi 0x194 rbp 0xffff800017c09ed0 rbx 0xffff800000a2bb30 rdx 0x195 rcx 0xdeaf4152deaf4152 rax 0xffff800000a2bb38 r8 0x40 r9 0x5 r10 0xffff8000009948c0 r11 0xfb4c225dca572298 r12 0xffff800000172290 r13 0x2 r14 0xfffffd8037e66548 r15 0x100000000 rip 0xffffffff81d28dbf arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800017c09e50 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.0) pid=164861 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80001493ce30,0xffffffff82296ba0 process=0xffff8000ffff7708 user=0xffff800017c05000, vmspace=0xfffffd803f013c60 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 9344 188649 63958 0 2 0 syz-executor.0 * 9344 164861 63958 0 7 0x4000000 syz-executor.0 10955 364535 1 0 3 0x100083 ttyin getty 56681 160379 0 0 3 0x14200 bored sosplice 63958 261151 77855 0 3 0x82 nanosleep syz-executor.0 81999 462500 77855 0 2 0x2 syz-executor.1 77855 358098 51947 0 3 0x82 thrsleep syz-fuzzer 77855 110948 51947 0 3 0x4000082 nanosleep syz-fuzzer 77855 326641 51947 0 3 0x4000082 thrsleep syz-fuzzer 77855 494866 51947 0 3 0x4000082 thrsleep syz-fuzzer 77855 236265 51947 0 3 0x4000082 thrsleep syz-fuzzer 77855 56307 51947 0 3 0x4000082 kqread syz-fuzzer 77855 101020 51947 0 3 0x4000082 thrsleep syz-fuzzer 77855 176733 51947 0 3 0x4000082 thrsleep syz-fuzzer 51947 478863 15026 0 3 0x10008a pause ksh 15026 149762 38261 0 3 0x92 select sshd 38261 477188 1 0 3 0x80 select sshd 37135 458102 37847 73 2 0x100090 syslogd 37847 149464 1 0 3 0x100082 netio syslogd 30823 471398 1 77 3 0x100090 poll dhclient 72288 150962 1 0 3 0x80 poll dhclient 1677 274835 0 0 2 0x14200 zerothread 85069 27589 0 0 3 0x14200 aiodoned aiodoned 25448 437738 0 0 3 0x14200 syncer update 24201 497571 0 0 3 0x14200 cleaner cleaner 80136 144799 0 0 3 0x14200 reaper reaper 19900 413826 0 0 3 0x14200 pgdaemon pagedaemon 86950 202397 0 0 3 0x14200 bored crynlk 12815 77516 0 0 3 0x14200 bored crypto 18613 329501 0 0 3 0x40014200 acpi0 acpi0 26585 46562 0 0 3 0x14200 bored softnet 88950 172429 0 0 3 0x14200 bored systqmp 72876 500496 0 0 3 0x14200 bored systq 1699 487885 0 0 3 0x40014200 bored softclock 38056 374650 0 0 3 0x40014200 idle0 55172 276841 0 0 3 0x14200 bored smr 1 71163 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 9519 6359K 7506K 78643K 22367 0 0 pcb 24 9K 11K 78643K 10903 0 0 rtable 133 5K 5K 78643K 2342 0 0 ifaddr 59 16K 18K 78643K 789 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 320 0 0 iov 0 0K 28K 78643K 1284 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1198 75K 77K 78643K 8323 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 91 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 476 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 14686 0 0 sigio 0 0K 0K 78643K 161 0 0 proc 42 30K 54K 78643K 1148 0 0 subproc 32 2K 2K 78643K 49 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 833 0 0 in_multi 33 2K 2K 78643K 291 0 0 ether_multi 1 0K 0K 78643K 41 0 0 mrt 0 0K 0K 78643K 22 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 108 477K 477K 78643K 108 0 0 exec 0 0K 1K 78643K 1493 0 0 pfkey data 0 0K 4K 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 100 21K 30K 78643K 34449 0 0 UVM aobj 130 4K 4K 78643K 152 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 1023 0 0 NDP 12 0K 0K 78643K 208 0 0 temp 274 2717K 3355K 78643K 40136 0 0 kqueue 0 0K 0K 78643K 59 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 12501 0 12494 2 1 1 2 0 8 0 plimitpl 152 165 0 158 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 tcpqe 32 15 0 15 1 1 0 1 0 8 0 tcpcb 544 1357 0 1353 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 162 0 162 51 50 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 200 0 0 13 0 13 13 0 8 0 art_table 32 202 0 0 2 0 2 2 0 8 0 art_node 16 46 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 9 2 1 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 474 0 464 1 0 1 1 0 8 0 shmpl 112 150 0 22 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 24069 0 22552 51 1 50 50 0 8 0 ffsino 240 24069 0 22552 90 0 90 90 0 8 0 nchpl 144 42676 0 41051 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 122598 0 122598 5 4 1 1 0 8 1 scsiplug 64 15 0 15 8 8 0 1 0 8 0 scxspl 192 138061 0 138061 58 57 1 7 0 8 1 sigapl 432 14862 0 14849 2 0 2 2 0 8 0 futexpl 56 183179 0 183179 5 4 1 1 0 8 1 knotepl 112 1516 0 1497 1 0 1 1 0 8 0 kqueuepl 104 2025 0 2023 1 0 1 1 0 8 0 pipepl 112 5400 0 5381 18 17 1 2 0 8 0 fdescpl 424 14863 0 14849 2 0 2 2 0 8 0 filepl 120 73202 0 73106 17 13 4 5 0 8 1 lockfpl 104 3794 0 3794 23 22 1 1 0 8 1 lockfspl 48 1384 0 1384 23 22 1 1 0 8 1 sessionpl 112 22 0 12 1 0 1 1 0 8 0 pgrppl 48 156 0 146 1 0 1 1 0 8 0 ucredpl 96 15973 0 15966 1 0 1 1 0 8 0 zombiepl 144 14849 0 14849 2 1 1 1 0 8 1 processpl 840 14878 0 14849 4 0 4 4 0 8 0 procpl 600 33338 0 33301 5 1 4 4 0 8 0 sosppl 128 137 0 137 35 35 0 1 0 8 0 sockpl 384 17086 0 17068 21 18 3 4 0 8 1 mcl64k 65536 2510 0 2510 220 220 0 33 0 8 0 mcl16k 16384 23 0 23 19 18 1 1 0 8 1 mcl12k 12288 181 0 181 48 48 0 1 0 8 0 mcl9k 9216 131 0 131 48 47 1 1 0 8 1 mcl8k 8192 186 0 186 48 48 0 1 0 8 0 mcl4k 4096 347 0 347 53 52 1 1 0 8 1 mcl2k2 2112 48 0 48 27 26 1 1 0 8 1 mcl2k 2048 70216 0 70169 20 13 7 12 0 8 0 mtagpl 80 10 0 10 5 5 0 1 0 8 0 mbufpl 256 197371 0 197219 118 107 11 22 0 8 0 bufpl 256 39319 0 32729 413 0 413 413 0 8 0 anonpl 16 1121215 0 1112109 407 353 54 55 0 62 15 amapchunkpl 152 57440 0 57359 135 131 4 18 0 158 0 amappl16 192 73106 0 72613 380 347 33 37 0 8 8 amappl15 184 7610 0 7608 1 0 1 1 0 8 0 amappl14 176 34 0 33 2 1 1 1 0 8 0 amappl13 168 2 0 2 2 2 0 1 0 8 0 amappl12 160 7064 0 7061 1 0 1 1 0 8 0 amappl11 152 50 0 36 1 0 1 1 0 8 0 amappl10 144 65 0 64 2 1 1 1 0 8 0 amappl9 136 557 0 554 1 0 1 1 0 8 0 amappl8 128 153 0 130 1 0 1 1 0 8 0 amappl7 120 32 0 28 1 0 1 1 0 8 0 amappl6 112 57 0 50 1 0 1 1 0 8 0 amappl5 104 7234 0 7222 1 0 1 1 0 8 0 amappl4 96 7930 0 7908 1 0 1 1 0 8 0 amappl3 88 7487 0 7476 1 0 1 1 0 8 0 amappl2 80 125690 0 125623 4 2 2 3 0 8 0 amappl1 72 279324 0 278911 30 21 9 19 0 8 0 amappl 80 33662 0 33630 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 64 151 0 22 3 0 3 3 0 8 0 uaddrrnd 24 14863 0 14849 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 14863 0 14849 1 0 1 1 0 8 0 vmmpekpl 168 85558 0 85534 2 0 2 2 0 8 0 vmmpepl 168 1486315 0 1484843 334 256 78 80 0 357 11 vmsppl 264 14862 0 14849 2 1 1 2 0 8 0 pdppl 4096 29732 0 29698 6 1 5 6 0 8 0 pvpl 32 3339982 0 3327739 816 679 137 176 0 265 35 pmappl 200 14862 0 14849 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 1013 0 465 19 2 17 17 0 8 0