uvm_fault(0xffffffff82538f58, 0xffff800000a27000, 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(0xffffffff82538f58, 0xffff800000a27000, 0, 1) -> e uvm_unmap_remove(ffff800000a26f00,0,80000000,ffff800015992ef8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a26f00,0,80000000,ffff800015992ef8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff800015992f30, count: 0 ddb> trace uvm_unmap_remove(ffff800000a26f00,0,80000000,ffff800015992ef8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a26f00,0,80000000,ffff800015992ef8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_map_deallocate(ffff800000a26f00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4242 vm_impl_init_vmx(ffff800015961040,ffff8000159589f8) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000a33000,ffff8000159589f8) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a33000,ffff8000159589f8) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd803ead3000,c5005601,ffff800000a33000,1,fffffd803f7c69c0,ffff8000159589f8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd8039594ea0,c5005601,ffff800000a33000,ffff8000159589f8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000159589f8,ffff8000159932d8,ffff800015993320) at sys_ioctl+0x5b9 syscall(ffff8000159933a0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc776ea04810, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800015992ee0 rbx 0 rdx 0x1747 __ALIGN_SIZE+0x747 rcx 0xffff800014957000 rax 0xffff800000a26f00 r8 0x1 r9 0 r10 0x4a0ef598e9e79013 r11 0xf4009918e2318af4 r12 0 r13 0xfffffd802da522e0 r14 0 r15 0xffff800000a26f00 rip 0xffffffff815649cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015992e30 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=265551 stat=onproc flags process=0 proc=4000000 pri=67, usrpri=67, nice=20 forw=0xffffffffffffffff, list=0xffff800015958508,0xffff800015958ef8 process=0xffff8000ffff7b10 user=0xffff80001598e000, vmspace=0xfffffd803f012ee0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 10420 427738 69955 0 2 0 syz-executor.1 *10420 265551 69955 0 7 0x4000000 syz-executor.1 14075 461967 54785 0 2 0 syz-executor.0 14075 254272 54785 0 3 0x4000080 fsleep syz-executor.0 14075 320097 54785 0 3 0x4000080 fsleep syz-executor.0 54785 498181 5206 0 3 0x82 nanosleep syz-executor.0 69955 195529 5206 0 3 0x82 nanosleep syz-executor.1 5206 110968 83152 0 3 0x82 thrsleep syz-fuzzer 5206 134126 83152 0 3 0x4000082 thrsleep syz-fuzzer 5206 337372 83152 0 3 0x4000082 thrsleep syz-fuzzer 5206 12003 83152 0 3 0x4000082 thrsleep syz-fuzzer 5206 95985 83152 0 3 0x4000082 thrsleep syz-fuzzer 5206 279558 83152 0 3 0x4000082 kqread syz-fuzzer 5206 5290 83152 0 3 0x4000082 thrsleep syz-fuzzer 5206 16233 83152 0 3 0x4000082 thrsleep syz-fuzzer 83152 192880 12742 0 3 0x10008a pause ksh 12742 323520 26633 0 3 0x92 select sshd 58084 273057 1 0 3 0x100083 ttyin getty 26633 79093 1 0 3 0x80 select sshd 72448 369713 76677 73 3 0x100090 kqread syslogd 76677 3836 1 0 3 0x100082 netio syslogd 93556 288876 1 77 3 0x100090 poll dhclient 91928 36347 1 0 3 0x80 poll dhclient 60507 226840 0 0 2 0x14200 zerothread 88655 63246 0 0 3 0x14200 aiodoned aiodoned 81555 364351 0 0 3 0x14200 syncer update 41175 410339 0 0 3 0x14200 cleaner cleaner 31731 127544 0 0 3 0x14200 reaper reaper 66389 410496 0 0 3 0x14200 pgdaemon pagedaemon 7049 115674 0 0 3 0x14200 bored crynlk 36779 48521 0 0 3 0x14200 bored crypto 30953 28911 0 0 3 0x40014200 acpi0 acpi0 16160 289999 0 0 3 0x14200 bored softnet 17548 112671 0 0 3 0x14200 bored systqmp 16445 41052 0 0 3 0x14200 bored systq 64290 358467 0 0 3 0x40014200 bored softclock 14132 401327 0 0 3 0x40014200 idle0 91572 132199 0 0 3 0x14200 bored smr 1 17253 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 devbuf 9499 6475K 6733K 78643K 10997 0 pcb 13 8K 8K 78643K 87 0 rtable 101 3K 4K 78643K 251 0 ifaddr 61 12K 13K 78643K 78 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 34 0 iov 0 0K 16K 78643K 57 0 mount 1 1K 1K 78643K 1 0 vnodes 1212 76K 77K 78643K 1354 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 7 1K 1K 78643K 9 0 sem 12 0K 1K 78643K 30 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 193 0 sigio 0 0K 0K 78643K 6 0 proc 48 38K 54K 78643K 359 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 32 0 in_multi 36 2K 2K 78643K 41 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 60 265K 265K 78643K 60 0 exec 0 0K 1K 78643K 194 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 117 54K 54K 78643K 1328 0 UVM aobj 11 2K 2K 78643K 13 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 40 0 NDP 10 0K 0K 78643K 17 0 temp 127 3019K 3084K 78643K 3725 0 kqueue 0 0K 0K 78643K 1 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 1 1 0 1 1 0 8 0 rtpcb 80 43 0 41 1 0 1 1 0 8 0 rtentry 112 49 0 10 2 0 2 2 0 8 0 unpcb 120 108 0 100 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 427 0 427 1 1 0 1 0 8 0 tcpcb 544 95 0 91 1 0 1 1 0 8 0 inpcb 280 551 0 543 2 0 2 2 0 8 1 nd6 48 4 0 1 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 224 0 23 14 0 14 14 0 8 0 art_table 32 225 0 23 2 0 2 2 0 8 0 art_node 16 48 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 23 0 15 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 11 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1695 0 299 46 0 46 46 0 8 0 ffsino 240 1695 0 299 83 0 83 83 0 8 0 nchpl 144 2146 0 536 60 0 60 60 0 8 0 uvmvnodes 72 1830 0 0 34 0 34 34 0 8 0 vnodes 208 1830 0 0 97 0 97 97 0 8 0 namei 1024 5653 0 5653 1 0 1 1 0 8 1 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 520 7 0 2 1 0 1 1 0 8 0 scxspl 192 6049 0 6049 8 4 4 7 0 8 4 plimitpl 152 37 0 30 1 0 1 1 0 8 0 sigapl 432 364 0 350 2 0 2 2 0 8 0 futexpl 56 5629 0 5627 1 0 1 1 0 8 0 knotepl 112 70 0 51 1 0 1 1 0 8 0 kqueuepl 104 38 0 34 1 0 1 1 0 8 0 pipepl 128 312 0 293 1 0 1 1 0 8 0 fdescpl 424 365 0 350 2 0 2 2 0 8 0 filepl 120 2635 0 2531 4 0 4 4 0 8 0 lockfpl 104 87 0 86 1 0 1 1 0 8 0 lockfspl 48 32 0 31 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 211 0 204 1 0 1 1 0 8 0 zombiepl 144 350 0 350 1 0 1 1 0 8 1 processpl 864 379 0 350 4 0 4 4 0 8 0 procpl 632 614 0 575 4 0 4 4 0 8 0 sockpl 384 708 0 690 4 0 4 4 0 8 1 mcl64k 65536 26 0 26 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 7 0 7 1 0 1 1 0 8 1 mcl8k 8192 10 0 10 1 0 1 1 0 8 1 mcl4k 4096 31 0 31 2 1 1 1 0 8 1 mcl2k 2048 65507 0 65444 22 12 10 18 0 8 1 mtagpl 80 10 0 2 2 1 1 1 0 8 0 mbufpl 256 105138 0 104995 13 3 10 10 0 8 0 bufpl 280 6514 0 1606 351 0 351 351 0 8 0 anonpl 16 53507 0 34083 95 1 94 94 0 62 15 amapchunkpl 152 1566 0 1407 7 0 7 7 0 158 0 amappl16 192 2040 0 975 65 4 61 65 0 8 7 amappl15 184 129 0 123 1 0 1 1 0 8 0 amappl14 176 24 0 23 1 0 1 1 0 8 0 amappl12 160 7 0 5 1 0 1 1 0 8 0 amappl11 152 140 0 125 1 0 1 1 0 8 0 amappl10 144 7 0 7 1 1 0 1 0 8 0 amappl9 136 561 0 557 1 0 1 1 0 8 0 amappl8 128 117 0 92 1 0 1 1 0 8 0 amappl7 120 99 0 88 1 0 1 1 0 8 0 amappl6 112 137 0 129 1 0 1 1 0 8 0 amappl5 104 137 0 126 1 0 1 1 0 8 0 amappl4 96 579 0 550 1 0 1 1 0 8 0 amappl3 88 121 0 114 1 0 1 1 0 8 0 amappl2 80 2214 0 2138 3 1 2 3 0 8 0 amappl1 72 16027 0 15598 27 18 9 20 0 8 0 amappl 80 840 0 789 2 0 2 2 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 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 64 12 0 2 1 0 1 1 0 8 0 uaddrrnd 24 372 0 350 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 372 0 350 1 0 1 1 0 8 0 vmmpekpl 168 6594 0 6567 2 0 2 2 0 8 0 vmmpepl 168 51453 0 49180 132 14 118 124 0 357 19 vmsppl 272 364 0 350 2 1 1 2 0 8 0 pdppl 4096 750 0 708 6 0 6 6 0 8 0 pvpl 32 165794 0 142831 217 0 217 217 0 265 31 pmappl 200 371 0 352 2 0 2 2 0 8 1 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 153 0 19 5 0 5 5 0 8 0