uvm_fault(0xfffffd803f013a50, 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(0xfffffd803f013a50, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff8000159d5d80, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff800000a0e800,ffff8000159d5e38,ffff8000159d5d90,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd8036dd7400,fffffd80363eca88,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd80363eca88,9,fffffd8036dd7400,0,0,ffff800016beee28) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd80363eca88,0,ffff8000159d6030,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800016beee28,3,ffff8000159d6110,0,ffff8000159d6220) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800016beee28,ffff8000159d61b8,ffff8000159d6220) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff8000159d6290) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,431d6d60010) at Xsyscall+0x128 end of kernel end trace frame: 0x434bf73fc50, count: -9 ddb> show registers rdi 0xffffffff819af1c7 arp_rtrequest+0x157 rsi 0x1a2 rbp 0xffff8000159d5ce0 rbx 0xffff800000a2ec10 rdx 0x1a3 rcx 0xdead4110dead4110 rax 0xffff800000a2ec18 r8 0x40 r9 0x5 r10 0xffff8000009948c0 r11 0x7bab59d2b6146196 r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd803adc30e8 r15 0x100000000 rip 0xffffffff819af1cf arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000159d5c60 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.0) pid=498150 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800016bef9e0,0xffffffff8227f910 process=0xffff8000ffff7708 user=0xffff8000159d1000, vmspace=0xfffffd803f013a50 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 72930 297883 65848 0 2 0 syz-executor.0 *72930 498150 65848 0 7 0x4000000 syz-executor.0 11901 104992 1 0 3 0x100083 ttyin getty 90908 247185 0 0 3 0x14200 bored sosplice 51683 369005 1901 0 2 0x2 syz-executor.1 65848 305682 1901 0 3 0x82 nanosleep syz-executor.0 1901 15392 93568 0 3 0x82 kqread syz-fuzzer 1901 427521 93568 0 2 0x4000482 syz-fuzzer 1901 308490 93568 0 3 0x4000082 thrsleep syz-fuzzer 1901 340410 93568 0 3 0x4000082 thrsleep syz-fuzzer 1901 264077 93568 0 3 0x4000082 thrsleep syz-fuzzer 1901 445109 93568 0 3 0x4000082 thrsleep syz-fuzzer 1901 162947 93568 0 3 0x4000082 thrsleep syz-fuzzer 1901 488329 93568 0 3 0x4000082 thrsleep syz-fuzzer 1901 211905 93568 0 3 0x4000082 thrsleep syz-fuzzer 93568 502848 89361 0 3 0x10008a pause ksh 89361 199050 27632 0 3 0x92 select sshd 27632 289554 1 0 3 0x80 select sshd 24622 300804 92352 73 2 0x100090 syslogd 92352 319256 1 0 3 0x100082 netio syslogd 40690 507167 1 77 3 0x100090 poll dhclient 54325 429168 1 0 3 0x80 poll dhclient 97880 252814 0 0 2 0x14200 zerothread 96059 264199 0 0 3 0x14200 aiodoned aiodoned 77828 186836 0 0 3 0x14200 syncer update 77077 228764 0 0 3 0x14200 cleaner cleaner 12782 48956 0 0 3 0x14200 reaper reaper 58228 181724 0 0 3 0x14200 pgdaemon pagedaemon 49028 440986 0 0 3 0x14200 bored crynlk 39837 362341 0 0 3 0x14200 bored crypto 31869 218790 0 0 3 0x40014200 acpi0 acpi0 13664 229238 0 0 3 0x14200 bored softnet 69443 255125 0 0 3 0x14200 bored systqmp 89148 63657 0 0 3 0x14200 bored systq 28663 61780 0 0 3 0x40014200 bored softclock 58259 259318 0 0 3 0x40014200 idle0 64694 379649 0 0 3 0x14200 bored smr 1 340266 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 9579 6379K 7494K 78643K 22720 0 0 pcb 24 9K 11K 78643K 3820 0 0 rtable 133 5K 5K 78643K 3543 0 0 ifaddr 80 23K 27K 78643K 1635 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 185 0 0 iov 0 0K 24K 78643K 3123 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1194 75K 76K 78643K 8831 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 1K 1K 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 12635 0 0 sigio 0 0K 0K 78643K 40 0 0 proc 42 30K 54K 78643K 964 0 0 subproc 32 2K 2K 78643K 51 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 648 0 0 in_multi 33 2K 2K 78643K 282 0 0 ether_multi 1 0K 0K 78643K 57 0 0 mrt 0 0K 0K 78643K 32 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 114 503K 503K 78643K 114 0 0 exec 0 0K 1K 78643K 663 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 103 22K 32K 78643K 28390 0 0 UVM aobj 130 8K 8K 78643K 138 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 228 0 0 NDP 19 0K 0K 78643K 423 0 0 temp 318 2714K 3352K 78643K 36274 0 0 kqueue 0 0K 0K 78643K 58 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 3868 0 3861 1 0 1 1 0 8 0 plimitpl 152 169 0 162 1 0 1 1 0 8 0 rtentry 112 88 0 42 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 28 0 28 1 1 0 1 0 8 0 tcpcb 544 941 0 937 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 374 0 374 21 20 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 47 0 6 1 0 1 1 0 8 0 sysvmsgpl 40 56 0 17 1 0 1 1 0 8 0 semupl 112 10 0 10 1 1 0 1 0 8 0 semapl 112 10 0 0 1 0 1 1 0 8 0 shmpl 112 136 0 8 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 24464 0 22976 49 0 49 49 0 8 0 ffsino 240 24464 0 22976 88 0 88 88 0 8 0 nchpl 144 39712 0 38096 61 0 61 61 0 8 0 uvmvnodes 72 7085 0 0 129 0 129 129 0 8 0 vnodes 200 7085 0 0 373 0 373 373 0 8 0 namei 1024 103222 0 103221 2 1 1 1 0 8 0 scsiplug 64 20 0 20 7 7 0 1 0 8 0 scxspl 192 130152 0 130152 35 34 1 5 0 8 1 sigapl 432 12805 0 12792 2 0 2 2 0 8 0 futexpl 56 109515 0 109515 1 0 1 1 0 8 1 knotepl 112 1245 0 1226 1 0 1 1 0 8 0 kqueuepl 104 2158 0 2156 1 0 1 1 0 8 0 pipepl 112 2824 0 2805 10 9 1 2 0 8 0 fdescpl 424 12806 0 12792 2 0 2 2 0 8 0 filepl 120 48950 0 48855 7 3 4 5 0 8 0 lockfpl 104 1916 0 1916 17 16 1 1 0 8 1 lockfspl 48 704 0 704 17 16 1 1 0 8 1 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 54 0 44 1 0 1 1 0 8 0 ucredpl 96 9548 0 9541 1 0 1 1 0 8 0 zombiepl 144 12792 0 12792 2 1 1 1 0 8 1 processpl 840 12821 0 12792 4 0 4 4 0 8 0 procpl 600 27165 0 27127 4 0 4 4 0 8 0 sosppl 128 79 0 79 13 12 1 1 0 8 1 sockpl 384 7382 0 7364 18 15 3 4 0 8 1 mcl64k 65536 1153 0 1147 7 6 1 2 0 8 0 mcl16k 16384 17 0 17 8 8 0 1 0 8 0 mcl12k 12288 97 0 97 24 24 0 1 0 8 0 mcl9k 9216 634 0 633 15 14 1 1 0 8 0 mcl8k 8192 101 0 101 20 19 1 1 0 8 1 mcl4k 4096 166 0 166 28 28 0 1 0 8 0 mcl2k2 2112 53 0 53 11 11 0 1 0 8 0 mcl2k 2048 38138 0 38097 36 29 7 11 0 8 1 mtagpl 80 11 0 11 2 2 0 1 0 8 0 mbufpl 256 164420 0 164236 35 22 13 14 0 8 0 bufpl 256 40190 0 33123 444 2 442 444 0 8 0 anonpl 16 982852 0 977189 156 132 24 48 0 62 0 amapchunkpl 152 50867 0 50781 88 83 5 24 0 158 0 amappl16 192 68005 0 67734 101 86 15 30 0 8 1 amappl14 176 43 0 40 2 1 1 1 0 8 0 amappl13 168 2 0 1 1 0 1 1 0 8 0 amappl12 160 17 0 11 1 0 1 1 0 8 0 amappl11 152 55 0 41 1 0 1 1 0 8 0 amappl10 144 62 0 60 1 0 1 1 0 8 0 amappl9 136 6772 0 6768 1 0 1 1 0 8 0 amappl8 128 6426 0 6394 2 0 2 2 0 8 0 amappl7 120 28 0 25 1 0 1 1 0 8 0 amappl6 112 62 0 54 1 0 1 1 0 8 0 amappl5 104 220 0 210 1 0 1 1 0 8 0 amappl4 96 12888 0 12865 1 0 1 1 0 8 0 amappl3 88 370 0 360 1 0 1 1 0 8 0 amappl2 80 100722 0 100657 4 2 2 3 0 8 0 amappl1 72 219939 0 219529 26 17 9 19 0 8 0 amappl 80 27537 0 27504 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 64 137 0 8 3 0 3 3 0 8 0 uaddrrnd 24 12806 0 12792 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 12806 0 12792 1 0 1 1 0 8 0 vmmpekpl 168 69404 0 69379 2 0 2 2 0 8 0 vmmpepl 168 1249958 0 1248695 162 102 60 74 0 357 4 vmsppl 264 12805 0 12792 2 1 1 2 0 8 0 pdppl 4096 25618 0 25584 6 1 5 6 0 8 0 pvpl 32 3114206 0 3105345 497 419 78 271 0 265 6 pmappl 200 12805 0 12792 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 694 0 118 18 1 17 18 0 8 0