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: 0xffff800015a19650, count: 0 ddb> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff8000009de000,ffff800015a19708,ffff800015a19660,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd8034e8f300,fffffd80363e7d88,0,0) at route_output+0x7d7 sys/net/rtsock.c:814 route_usrreq(fffffd80363e7d88,9,fffffd8034e8f300,0,0,ffff800015a12bd0) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd80363e7d88,0,ffff800015a19900,0,0,80) at sosend+0x660 sys/kern/uipc_socket.c:513 sendit(ffff800015a12bd0,3,ffff800015a199e0,0,ffff800015a19af0) at sendit+0x53c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800015a12bd0,ffff800015a19a88,ffff800015a19af0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800015a19b60) at syscall+0x511 Xsyscall(6,0,ffffffffffffffd8,0,6,45f4f9df010) at Xsyscall+0x128 end of kernel end trace frame: 0x461d2a35a10, count: -9 ddb> show registers rdi 0xffffffff819af1c7 arp_rtrequest+0x157 rsi 0x178 rbp 0xffff800015a195b0 rbx 0xffff80000005bcb0 rdx 0x179 rcx 0xdeaf4152deaf4152 rax 0xffff80000005bcb8 r8 0x40 r9 0x5 r10 0xffff80000098fa00 r11 0x5e1c1adcb4a8957a r12 0xffff8000001722a8 r13 0x2 r14 0xfffffd803eaed698 r15 0x100000000 rip 0xffffffff819af1cf arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015a19530 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb> show proc PROC (syz-executor.1) pid=11045 stat=onproc flags process=0 proc=4000000 pri=80, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800015a13c38,0xffffffff8227f910 process=0xffff8000ffff6010 user=0xffff800015a14000, 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 76156 426092 13959 0 2 0 syz-executor.1 *76156 11045 13959 0 7 0x4000000 syz-executor.1 96524 71691 1 0 3 0x100083 ttyin getty 53335 515790 0 0 3 0x14200 bored sosplice 20622 364471 61806 0 2 0x2 syz-executor.0 13959 311485 61806 0 3 0x82 nanosleep syz-executor.1 61806 506343 55273 0 3 0x82 thrsleep syz-fuzzer 61806 335749 55273 0 2 0x4000482 syz-fuzzer 61806 504077 55273 0 3 0x4000082 thrsleep syz-fuzzer 61806 3826 55273 0 3 0x4000082 thrsleep syz-fuzzer 61806 410113 55273 0 3 0x4000082 thrsleep syz-fuzzer 61806 334265 55273 0 3 0x4000082 thrsleep syz-fuzzer 61806 298632 55273 0 3 0x4000082 thrsleep syz-fuzzer 61806 168523 55273 0 3 0x4000082 kqread syz-fuzzer 55273 159785 34477 0 3 0x10008a pause ksh 34477 378015 57220 0 3 0x92 select sshd 57220 156053 1 0 3 0x80 select sshd 75520 500201 59462 73 2 0x100090 syslogd 59462 263987 1 0 3 0x100082 netio syslogd 24718 328036 1 77 3 0x100090 poll dhclient 19227 266184 1 0 3 0x80 poll dhclient 35170 521563 0 0 2 0x14200 zerothread 65718 245356 0 0 3 0x14200 aiodoned aiodoned 14272 221967 0 0 3 0x14200 syncer update 64580 216514 0 0 3 0x14200 cleaner cleaner 47465 355292 0 0 3 0x14200 reaper reaper 66687 102470 0 0 3 0x14200 pgdaemon pagedaemon 1154 256266 0 0 3 0x14200 bored crynlk 43106 335451 0 0 3 0x14200 bored crypto 2545 140933 0 0 3 0x40014200 acpi0 acpi0 97598 18061 0 0 3 0x14200 bored softnet 81263 120614 0 0 3 0x14200 bored systqmp 28904 356923 0 0 3 0x14200 bored systq 99414 440211 0 0 3 0x40014200 bored softclock 88759 230530 0 0 3 0x40014200 idle0 64625 16178 0 0 3 0x14200 bored smr 1 154794 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 9522 6614K 14667K 78643K 16150 0 0 pcb 24 9K 11K 78643K 1477 0 0 rtable 117 4K 4K 78643K 755 0 0 ifaddr 56 14K 15K 78643K 319 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 113 0 0 iov 0 0K 24K 78643K 338 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1209 76K 76K 78643K 3694 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 39 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 210 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12537 0 0 file desc 5 13K 25K 78643K 2975 0 0 sigio 0 0K 0K 78643K 47 0 0 proc 42 30K 54K 78643K 656 0 0 subproc 32 2K 2K 78643K 38 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 307 0 0 in_multi 33 2K 2K 78643K 143 0 0 ether_multi 1 0K 0K 78643K 16 0 0 mrt 0 0K 0K 78643K 3 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 426 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 39K 78643K 7790 0 0 UVM aobj 130 4K 4K 78643K 151 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 118 0 0 NDP 11 0K 0K 78643K 82 0 0 temp 166 2715K 2787K 78643K 11823 0 0 kqueue 0 0K 0K 78643K 22 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 1224 0 1217 1 0 1 1 0 8 0 plimitpl 152 84 0 77 1 0 1 1 0 8 0 rtentry 112 62 0 17 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 478 0 474 1 0 1 1 0 8 0 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 61 0 61 7 6 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 20 0 14 4 3 1 1 0 8 0 semapl 112 204 0 194 1 0 1 1 0 8 0 shmpl 112 149 0 21 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 6537 0 5092 47 0 47 47 0 8 0 ffsino 240 6537 0 5092 86 0 86 86 0 8 0 nchpl 144 10959 0 9334 61 0 61 61 0 8 0 uvmvnodes 72 6773 0 0 124 0 124 124 0 8 0 vnodes 200 6773 0 0 357 0 357 357 0 8 0 namei 1024 33787 0 33787 2 1 1 1 0 8 1 scsiplug 64 8 0 8 5 4 1 1 0 8 1 scxspl 192 33774 0 33774 21 20 1 6 0 8 1 sigapl 432 3149 0 3136 2 0 2 2 0 8 0 futexpl 56 46016 0 46016 1 0 1 1 0 8 1 knotepl 112 639 0 620 2 1 1 2 0 8 0 kqueuepl 104 740 0 738 1 0 1 1 0 8 0 pipepl 112 1556 0 1537 5 4 1 2 0 8 0 fdescpl 424 3150 0 3136 2 0 2 2 0 8 0 filepl 120 18595 0 18500 4 0 4 4 0 8 0 lockfpl 104 1001 0 1001 2 1 1 1 0 8 1 lockfspl 48 376 0 376 2 1 1 1 0 8 1 sessionpl 112 20 0 10 1 0 1 1 0 8 0 pgrppl 48 56 0 46 1 0 1 1 0 8 0 ucredpl 96 4445 0 4438 1 0 1 1 0 8 0 zombiepl 144 3136 0 3136 2 1 1 1 0 8 1 processpl 840 3165 0 3136 4 0 4 4 0 8 0 procpl 600 6966 0 6929 4 0 4 4 0 8 0 sosppl 128 28 0 28 7 6 1 1 0 8 1 sockpl 384 2544 0 2526 4 1 3 4 0 8 1 mcl64k 65536 88 0 88 10 9 1 1 0 8 1 mcl16k 16384 10 0 10 8 8 0 1 0 8 0 mcl12k 12288 59 0 59 8 7 1 1 0 8 1 mcl9k 9216 48 0 48 8 7 1 1 0 8 1 mcl8k 8192 37 0 37 11 10 1 1 0 8 1 mcl4k 4096 118 0 118 6 5 1 1 0 8 1 mcl2k2 2112 12 0 12 7 6 1 1 0 8 1 mcl2k 2048 57204 0 57159 14 7 7 11 0 8 1 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 107090 0 107029 13 7 6 10 0 8 0 bufpl 256 15755 0 8918 428 0 428 428 0 8 0 anonpl 16 263115 0 253179 124 82 42 58 0 62 0 amapchunkpl 152 13473 0 13388 41 36 5 14 0 158 1 amappl16 192 15121 0 14578 89 60 29 40 0 8 1 amappl15 184 4 0 4 3 3 0 1 0 8 0 amappl14 176 36 0 35 2 1 1 1 0 8 0 amappl13 168 2942 0 2939 2 1 1 1 0 8 0 amappl12 160 14 0 10 1 0 1 1 0 8 0 amappl11 152 50 0 36 1 0 1 1 0 8 0 amappl10 144 62 0 61 2 1 1 1 0 8 0 amappl9 136 525 0 522 1 0 1 1 0 8 0 amappl8 128 132 0 115 1 0 1 1 0 8 0 amappl7 120 30 0 27 1 0 1 1 0 8 0 amappl6 112 57 0 51 1 0 1 1 0 8 0 amappl5 104 205 0 192 1 0 1 1 0 8 0 amappl4 96 3315 0 3292 1 0 1 1 0 8 0 amappl3 88 274 0 264 1 0 1 1 0 8 0 amappl2 80 24659 0 24593 4 2 2 3 0 8 0 amappl1 72 65714 0 65306 26 17 9 19 0 8 0 amappl 80 7215 0 7182 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 64 150 0 21 3 0 3 3 0 8 0 uaddrrnd 24 3150 0 3136 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3150 0 3136 1 0 1 1 0 8 0 vmmpekpl 168 21759 0 21734 2 0 2 2 0 8 0 vmmpepl 168 311991 0 310491 143 71 72 81 0 357 4 vmsppl 264 3149 0 3136 2 1 1 2 0 8 0 pdppl 4096 6306 0 6272 6 1 5 6 0 8 0 pvpl 32 900643 0 887655 278 166 112 238 0 265 5 pmappl 200 3149 0 3136 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 604 0 50 16 0 16 16 0 8 0