uvm_fault(0xffffffff82513c48, 0xffff800000a8f000, 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(0xffffffff82513c48, 0xffff800000a8f000, 0, 1) -> e uvm_unmap_remove(ffff800000a8ef00,0,1000000,ffff80001490e820,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a8ef00,0,1000000,ffff80001490e820,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff80001490e8d0, count: 0 ddb> trace uvm_unmap_remove(ffff800000a8ef00,0,1000000,ffff80001490e820,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a8ef00,0,1000000,ffff80001490e820,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_share(ffff800000a8ef00,0,7,fffffd803f012550,20000000,80000000) at uvm_share+0x55b vm_impl_init_vmx(ffff800014940618,ffff8000ffff31d0) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a7d000,ffff8000ffff31d0) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a7d000,ffff8000ffff31d0) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd80361b9820,c5005601,ffff800000a7d000,1,fffffd803f7c69c0,ffff8000ffff31d0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd8034f7f3d0,c5005601,ffff800000a7d000,ffff8000ffff31d0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000ffff31d0,ffff80001490ec78,ffff80001490ecc0) at sys_ioctl+0x5b9 syscall(ffff80001490ed40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf7842495f00, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001490e7f0 rbx 0 rdx 0x602 rcx 0xffff800014949000 rax 0xffff800000a8ef00 r8 0 r9 0x1 r10 0xd72da632ce78fc44 r11 0x6a45858c60b31259 r12 0 r13 0xfffffd802d5f2398 r14 0x1000 __ALIGN_SIZE r15 0xffff800000a8ef00 rip 0xffffffff8212be9b uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001490e740 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=301752 stat=onproc flags process=0 proc=4000000 pri=78, usrpri=78, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3458,0xffffffff825b8d60 process=0xffff8000ffff6390 user=0xffff800014909000, vmspace=0xfffffd803f012550 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 50112 316790 94228 0 2 0 syz-executor.0 *50112 301752 94228 0 7 0x4000000 syz-executor.0 37644 306908 0 0 3 0x14200 acct acct 77217 491398 23029 0 2 0x2 syz-executor.1 38540 211954 1 0 3 0x100083 ttyin getty 18688 478239 0 0 3 0x14200 bored sosplice 94228 415229 23029 0 3 0x82 nanosleep syz-executor.0 23029 522875 4553 0 3 0x82 thrsleep syz-fuzzer 23029 171002 4553 0 3 0x4000082 nanosleep syz-fuzzer 23029 480356 4553 0 3 0x4000082 kqread syz-fuzzer 23029 507570 4553 0 3 0x4000082 thrsleep syz-fuzzer 23029 461350 4553 0 3 0x4000082 thrsleep syz-fuzzer 23029 458628 4553 0 3 0x4000082 thrsleep syz-fuzzer 23029 340022 4553 0 3 0x4000082 thrsleep syz-fuzzer 23029 129329 4553 0 3 0x4000082 thrsleep syz-fuzzer 4553 274785 59578 0 3 0x10008a pause ksh 59578 267124 81340 0 3 0x92 select sshd 81340 202702 1 0 3 0x80 select sshd 30288 261207 5906 73 3 0x100090 kqread syslogd 5906 439864 1 0 3 0x100082 netio syslogd 46858 452626 1 77 3 0x100090 poll dhclient 60666 227826 1 0 3 0x80 poll dhclient 79837 376372 0 0 2 0x14200 zerothread 223 482075 0 0 3 0x14200 aiodoned aiodoned 66707 337385 0 0 3 0x14200 syncer update 72690 331668 0 0 3 0x14200 cleaner cleaner 16895 56381 0 0 3 0x14200 reaper reaper 68565 370517 0 0 3 0x14200 pgdaemon pagedaemon 84273 110828 0 0 3 0x14200 bored crynlk 79723 262906 0 0 3 0x14200 bored crypto 33927 439453 0 0 3 0x40014200 acpi0 acpi0 17482 472899 0 0 3 0x14200 bored softnet 28161 319129 0 0 3 0x14200 bored systqmp 48702 72843 0 0 3 0x14200 bored systq 79111 149086 0 0 3 0x40014200 bored softclock 14515 270593 0 0 3 0x40014200 idle0 65516 48886 0 0 3 0x14200 bored smr 1 182472 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 9517 6352K 8205K 78643K 14469 0 pcb 13 8K 8K 78643K 776 0 rtable 105 5K 6K 78643K 781 0 ifaddr 79 14K 15K 78643K 179 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 53 0 iov 0 0K 16K 78643K 117 0 mount 1 1K 1K 78643K 1 0 vnodes 1249 78K 79K 78643K 2250 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 13 0 VM map 11 2K 2K 78643K 12 0 sem 12 0K 1K 78643K 624 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 1113 0 sigio 0 0K 0K 78643K 8 0 proc 49 38K 63K 78643K 473 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 86 0 in_multi 51 3K 3K 78643K 96 0 ether_multi 1 0K 0K 78643K 2 0 mrt 11 0K 0K 78643K 13 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 72 318K 318K 78643K 72 0 exec 0 0K 1K 78643K 252 0 pfkey data 0 0K 0K 78643K 8 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 121 87K 91K 78643K 3435 0 UVM aobj 52 6K 6K 78643K 52 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 81 0 NDP 14 0K 0K 78643K 40 0 temp 142 3563K 3631K 78643K 41414 0 kqueue 0 0K 0K 78643K 6 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 9 0 4 1 0 1 1 0 8 0 rtpcb 96 75 0 73 1 0 1 1 0 8 0 rtentry 112 80 0 39 2 0 2 2 0 8 0 unpcb 120 701 0 693 1 0 1 1 0 8 0 syncache 280 9 0 9 2 2 0 1 0 8 0 tcpqe 32 270 0 270 2 2 0 1 0 8 0 tcpcb 640 204 0 200 3 2 1 2 0 8 0 ipq 40 6 0 6 2 1 1 1 0 8 1 ipqe 40 270 0 270 2 1 1 1 0 8 1 inpcb 280 1967 0 1960 3 1 2 2 0 8 1 nd6 48 10 0 7 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 1 0 1 0 8 0 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 10 0 10 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 409 0 199 17 3 14 15 0 8 0 art_table 32 411 0 199 2 0 2 2 0 8 0 art_node 16 79 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 123 0 97 1 0 1 1 0 8 0 semupl 112 73 0 73 1 1 0 1 0 8 0 semapl 112 620 0 610 1 0 1 1 0 8 0 shmpl 112 50 0 0 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2786 0 1389 46 0 46 46 0 8 0 ffsino 240 2786 0 1389 83 0 83 83 0 8 0 nchpl 144 4446 0 2847 60 0 60 60 0 8 0 uvmvnodes 72 3740 0 0 68 0 68 68 0 8 0 vnodes 208 3740 0 0 197 0 197 197 0 8 0 namei 1024 12371 0 12370 2 1 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 520 10 0 1 1 0 1 1 0 8 0 scxspl 208 13116 0 13116 10 7 3 7 0 8 3 plimitpl 152 52 0 45 1 0 1 1 0 8 0 sigapl 432 1281 0 1268 2 0 2 2 0 8 0 futexpl 56 26659 0 26659 2 1 1 1 0 8 1 knotepl 112 374 0 355 2 1 1 2 0 8 0 kqueuepl 104 512 0 510 1 0 1 1 0 8 0 pipepl 128 560 0 541 3 2 1 2 0 8 0 fdescpl 424 1282 0 1268 2 0 2 2 0 8 0 filepl 120 8559 0 8456 8 3 5 5 0 8 1 lockfpl 104 244 0 243 1 0 1 1 0 8 0 lockfspl 48 75 0 74 1 0 1 1 0 8 0 sessionpl 128 19 0 9 1 0 1 1 0 8 0 pgrppl 48 38 0 28 1 0 1 1 0 8 0 ucredpl 96 660 0 652 1 0 1 1 0 8 0 zombiepl 144 1268 0 1268 1 0 1 1 0 8 1 processpl 896 1298 0 1268 4 0 4 4 0 8 0 procpl 648 2647 0 2609 4 0 4 4 0 8 0 sosppl 144 132 0 132 2 1 1 1 0 8 1 sockpl 384 2763 0 2746 10 5 5 5 0 8 3 mcl64k 65536 84 0 84 6 5 1 3 0 8 1 mcl16k 16384 9 0 9 2 1 1 1 0 8 1 mcl12k 12288 35 0 35 6 5 1 1 0 8 1 mcl9k 9216 14 0 14 4 3 1 1 0 8 1 mcl8k 8192 32 0 32 3 2 1 1 0 8 1 mcl4k 4096 122 0 122 4 3 1 1 0 8 1 mcl2k2 2112 7 0 7 5 5 0 1 0 8 0 mcl2k 2048 71438 0 71416 15 11 4 13 0 8 0 mtagpl 80 23 0 8 2 1 1 1 0 8 0 mbufpl 256 122354 0 122225 34 12 22 23 0 8 8 bufpl 280 10530 0 3182 525 0 525 525 0 8 0 anonpl 16 150282 0 130319 111 13 98 99 0 62 14 amapchunkpl 152 5988 0 5838 19 9 10 16 0 158 2 amappl16 192 7383 0 6246 88 22 66 70 0 8 8 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 51 0 46 1 0 1 1 0 8 0 amappl13 168 507 0 507 1 1 0 1 0 8 0 amappl12 160 5 0 4 1 0 1 1 0 8 0 amappl11 152 557 0 544 1 0 1 1 0 8 0 amappl10 144 9 0 7 1 0 1 1 0 8 0 amappl9 136 569 0 566 1 0 1 1 0 8 0 amappl8 128 168 0 140 1 0 1 1 0 8 0 amappl7 120 38 0 35 1 0 1 1 0 8 0 amappl6 112 573 0 560 1 0 1 1 0 8 0 amappl5 104 167 0 157 1 0 1 1 0 8 0 amappl4 96 1510 0 1484 1 0 1 1 0 8 0 amappl3 88 149 0 144 1 0 1 1 0 8 0 amappl2 80 9918 0 9850 3 1 2 3 0 8 0 amappl1 72 32485 0 32075 26 16 10 20 0 8 0 amappl 80 2913 0 2865 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 51 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1292 0 1268 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1292 0 1268 1 0 1 1 0 8 0 vmmpekpl 168 11648 0 11622 2 0 2 2 0 8 0 vmmpepl 168 156886 0 154673 202 67 135 175 0 357 34 vmsppl 272 1281 0 1268 2 1 1 2 0 8 0 pdppl 4096 2590 0 2546 7 1 6 6 0 8 0 pvpl 32 430313 0 407204 300 42 258 298 0 265 67 pmappl 200 1291 0 1269 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 182 0 42 5 0 5 5 0 8 0