uvm_fault(0xffffffff8254f790, 0xffff800000b40000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff8254f790, 0xffff800000b40000, 0, 1) -> e uvm_unmap_remove(ffff800000b3ff00,0,80000000,ffff80001594dfc8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b3ff00,0,80000000,ffff80001594dfc8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff80001594e000, count: 0 ddb> trace uvm_unmap_remove(ffff800000b3ff00,0,80000000,ffff80001594dfc8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b3ff00,0,80000000,ffff80001594dfc8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_map_deallocate(ffff800000b3ff00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233 vm_impl_init_vmx(ffff80001492b870,ffff8000159538c8) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000a95000,ffff8000159538c8) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1375 [inline] vm_create(ffff800000a95000,ffff8000159538c8) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd803cea75b0,c5005601,ffff800000a95000,1,fffffd803f7c6a80,ffff8000159538c8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802c03fdb0,c5005601,ffff800000a95000,ffff8000159538c8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000159538c8,ffff80001594e3a8,ffff80001594e3f0) at sys_ioctl+0x5b9 syscall(ffff80001594e470) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,e42e9c96010) at Xsyscall+0x128 end of kernel end trace frame: 0xe452ae52e50, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001594dfb0 rbx 0 rdx 0x16ff __ALIGN_SIZE+0x6ff rcx 0xffff80001696c000 rax 0xffff800000b3ff00 r8 0x1 r9 0 r10 0xd55582b5c3e8d3d1 r11 0x606f11006df798a0 r12 0 r13 0xfffffd802b0dc7f0 r14 0 r15 0xffff800000b3ff00 rip 0xffffffff815451bb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001594df00 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=21974 stat=onproc flags process=0 proc=4000000 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff800015952018,0xffffffff8258e3e0 process=0xffff8000148a2a38 user=0xffff800015949000, vmspace=0xfffffd803f013330 estcpu=32, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 96975 445623 86960 0 2 0 syz-executor.0 *96975 21974 86960 0 7 0x4000000 syz-executor.0 86960 479313 1562 0 2 0x482 syz-executor.0 8310 387731 1 0 3 0x100083 ttyin getty 88802 319725 1562 0 2 0x2 syz-executor.1 80576 356113 0 0 3 0x14200 bored sosplice 1562 32581 53004 0 3 0x82 kqread syz-fuzzer 1562 369597 53004 0 2 0x4000482 syz-fuzzer 1562 60213 53004 0 3 0x4000082 thrsleep syz-fuzzer 1562 370748 53004 0 3 0x4000082 thrsleep syz-fuzzer 1562 177332 53004 0 3 0x4000082 thrsleep syz-fuzzer 1562 192855 53004 0 3 0x4000082 thrsleep syz-fuzzer 1562 108682 53004 0 3 0x4000082 thrsleep syz-fuzzer 1562 39502 53004 0 3 0x4000082 thrsleep syz-fuzzer 53004 257434 89751 0 3 0x10008a pause ksh 89751 100603 88637 0 3 0x92 select sshd 88637 88015 1 0 3 0x80 select sshd 21588 23983 98708 73 2 0x100010 syslogd 98708 49340 1 0 3 0x100082 netio syslogd 94683 98411 1 77 3 0x100090 poll dhclient 74977 270086 1 0 3 0x80 poll dhclient 62727 247142 0 0 2 0x14200 zerothread 29079 192198 0 0 3 0x14200 aiodoned aiodoned 81134 144770 0 0 3 0x14200 syncer update 17891 77007 0 0 3 0x14200 cleaner cleaner 57386 112926 0 0 3 0x14200 reaper reaper 56728 202767 0 0 3 0x14200 pgdaemon pagedaemon 81941 430246 0 0 3 0x14200 bored crynlk 73322 370598 0 0 3 0x14200 bored crypto 13143 136497 0 0 3 0x40014200 acpi0 acpi0 45699 283228 0 0 3 0x14200 bored softnet 83585 480069 0 0 3 0x14200 bored systqmp 59481 461942 0 0 3 0x14200 bored systq 88547 324679 0 0 3 0x40014200 bored softclock 55868 318893 0 0 3 0x40014200 idle0 41141 73920 0 0 3 0x14200 bored smr 1 322607 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 9540 6369K 8811K 78643K 31505 0 0 pcb 13 8K 8K 78643K 286 0 0 rtable 91 3K 4K 78643K 1101 0 0 ifaddr 69 15K 16K 78643K 338 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 114 0 0 iov 0 0K 36K 78643K 1520 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1247 78K 79K 78643K 7260 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 37 0 0 VM map 3 0K 0K 78643K 10 0 0 sem 12 0K 1K 78643K 3075 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 3525 0 0 sigio 0 0K 0K 78643K 28 0 0 proc 50 38K 55K 78643K 994 0 0 subproc 32 2K 2K 78643K 248 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 195 0 0 in_multi 23 1K 2K 78643K 236 0 0 ether_multi 1 0K 0K 78643K 17 0 0 mrt 0 0K 0K 78643K 7 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 60 265K 265K 78643K 60 0 0 exec 0 0K 1K 78643K 522 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 21K 30K 78643K 8926 0 0 UVM aobj 103 3K 3K 78643K 117 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 305 0 0 NDP 16 0K 0K 78643K 107 0 0 temp 198 3536K 3615K 78643K 43632 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 30 0 26 1 0 1 1 0 8 0 rtpcb 80 162 0 160 1 0 1 1 0 8 0 rtentry 112 177 0 143 2 0 2 2 0 8 0 unpcb 120 4146 0 4135 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 6960 0 6960 2 2 0 2 0 8 0 tcpcb 544 469 0 465 1 0 1 1 0 8 0 inpcb 280 5278 0 5271 15 13 2 2 0 8 1 nd6 48 28 0 26 1 0 1 1 0 8 0 pkpcb 40 8 0 8 4 4 0 1 0 8 0 ppxss 1128 39 0 39 11 10 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 769 0 594 18 3 15 15 0 8 0 art_table 32 770 0 594 2 0 2 2 0 8 0 art_node 16 168 0 137 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semapl 112 3073 0 3063 1 0 1 1 0 8 0 shmpl 112 115 0 14 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 7378 0 5982 46 0 46 46 0 8 0 ffsino 240 7378 0 5982 83 0 83 83 0 8 0 nchpl 144 14743 0 13122 61 0 61 61 0 8 0 uvmvnodes 72 7548 0 0 138 0 138 138 0 8 0 vnodes 208 7548 0 0 398 0 398 398 0 8 0 namei 1024 43870 0 43869 5 4 1 1 0 8 0 vmpool 520 8 0 7 3 2 1 1 0 8 0 scsiplug 64 10 0 10 6 6 0 1 0 8 0 scxspl 192 41931 0 41931 21 19 2 7 0 8 2 plimitpl 152 201 0 194 1 0 1 1 0 8 0 sigapl 432 3662 0 3649 2 0 2 2 0 8 0 futexpl 56 113274 0 113274 4 3 1 1 0 8 1 knotepl 112 640 0 621 1 0 1 1 0 8 0 kqueuepl 104 523 0 521 1 0 1 1 0 8 0 pipepl 112 3308 0 3289 9 7 2 2 0 8 1 fdescpl 424 3663 0 3649 2 0 2 2 0 8 0 filepl 120 36704 0 36607 13 9 4 5 0 8 0 lockfpl 104 3064 0 3063 1 0 1 1 0 8 0 lockfspl 48 1172 0 1171 1 0 1 1 0 8 0 sessionpl 112 31 0 21 1 0 1 1 0 8 0 pgrppl 48 47 0 37 1 0 1 1 0 8 0 ucredpl 96 3800 0 3792 1 0 1 1 0 8 0 zombiepl 144 3652 0 3652 3 2 1 1 0 8 1 processpl 864 3681 0 3652 4 0 4 4 0 8 0 procpl 632 7660 0 7623 4 0 4 4 0 8 0 sosppl 128 14 0 14 5 5 0 1 0 8 0 sockpl 384 10041 0 10021 21 17 4 6 0 8 1 mcl64k 65536 152 0 152 5 4 1 1 0 8 1 mcl16k 16384 850 0 850 8 7 1 1 0 8 1 mcl12k 12288 143 0 143 5 4 1 1 0 8 1 mcl9k 9216 28 0 28 9 9 0 1 0 8 0 mcl8k 8192 82 0 82 9 8 1 1 0 8 1 mcl4k 4096 239 0 239 5 4 1 1 0 8 1 mcl2k2 2112 18 0 18 8 8 0 1 0 8 0 mcl2k 2048 60604 0 60563 41 35 6 21 0 8 0 mtagpl 80 38 0 29 5 4 1 1 0 8 0 mbufpl 256 139545 0 139466 21 12 9 12 0 8 2 bufpl 256 15159 0 7610 472 0 472 472 0 8 0 anonpl 16 328806 0 314968 134 61 73 74 0 62 13 amapchunkpl 152 15048 0 14942 32 25 7 10 0 158 1 amappl16 192 17942 0 17148 115 67 48 52 0 8 8 amappl15 184 27 0 27 3 3 0 1 0 8 0 amappl14 176 165 0 161 2 1 1 1 0 8 0 amappl13 168 75 0 75 1 1 0 1 0 8 0 amappl12 160 1632 0 1629 2 1 1 1 0 8 0 amappl11 152 249 0 238 1 0 1 1 0 8 0 amappl10 144 1100 0 1097 4 3 1 1 0 8 0 amappl9 136 894 0 888 1 0 1 1 0 8 0 amappl8 128 438 0 409 1 0 1 1 0 8 0 amappl7 120 1155 0 1147 1 0 1 1 0 8 0 amappl6 112 237 0 224 1 0 1 1 0 8 0 amappl5 104 1921 0 1911 1 0 1 1 0 8 0 amappl4 96 3971 0 3943 1 0 1 1 0 8 0 amappl3 88 1144 0 1138 1 0 1 1 0 8 0 amappl2 80 27807 0 27741 4 2 2 3 0 8 0 amappl1 72 71236 0 70835 28 19 9 20 0 8 0 amappl 80 8070 0 8034 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 64 116 0 14 2 0 2 2 0 8 0 uaddrrnd 24 3671 0 3649 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3671 0 3649 1 0 1 1 0 8 0 vmmpekpl 168 27598 0 27571 2 0 2 2 0 8 0 vmmpepl 168 429206 0 427367 248 152 96 109 0 357 10 vmsppl 272 3662 0 3649 3 2 1 2 0 8 0 pdppl 4096 7348 0 7312 6 1 5 6 0 8 0 pvpl 32 974992 0 957978 363 187 176 282 0 265 34 pmappl 200 3670 0 3656 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 683 0 82 18 0 18 18 0 8 0