uvm_fault(0xffffffff82509418, 0xffff800000b2a000, 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(0xffffffff82509418, 0xffff800000b2a000, 0, 1) -> e uvm_unmap_remove(ffff800000b29f00,0,1000000,ffff80001492f1f0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b29f00,0,1000000,ffff80001492f1f0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff80001492f2a0, count: 0 ddb> trace uvm_unmap_remove(ffff800000b29f00,0,1000000,ffff80001492f1f0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b29f00,0,1000000,ffff80001492f1f0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_share(ffff800000b29f00,0,7,fffffd803f013bb0,20000000,80000000) at uvm_share+0x55b vm_impl_init_vmx(ffff800015978620,ffff800014916290) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1270 vm_create(ffff800000b10800,ffff800014916290) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1385 [inline] vm_create(ffff800000b10800,ffff800014916290) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1174 VOP_IOCTL(fffffd803d1af1a0,c5005601,ffff800000b10800,1,fffffd803f7c69c0,ffff800014916290) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd803d1fb9d8,c5005601,ffff800000b10800,ffff800014916290) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff800014916290,ffff80001492f648,ffff80001492f690) at sys_ioctl+0x5b9 syscall(ffff80001492f710) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,3c1adab1010) at Xsyscall+0x128 end of kernel end trace frame: 0x3c434709740, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001492f1c0 rbx 0 rdx 0x5fb rcx 0xffff80001513f000 rax 0xffff800000b29f00 r8 0 r9 0x1 r10 0xe86799312364360e r11 0xe4de5db778f0831f r12 0 r13 0xfffffd80047ffe40 r14 0x1000 __ALIGN_SIZE r15 0xffff800000b29f00 rip 0xffffffff81692d9b uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001492f110 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=119823 stat=onproc flags process=0 proc=4000000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000149169f8,0xffffffff8257dba8 process=0xffff8000148a2a38 user=0xffff80001492a000, vmspace=0xfffffd803f013bb0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 42002 309991 7544 0 2 0 syz-executor.0 *42002 119823 7544 0 7 0x4000000 syz-executor.0 80233 515350 66524 0 2 0x2 syz-executor.1 7544 419049 66524 0 2 0x482 syz-executor.0 37477 297932 1 0 3 0x80 nanosleep init 92724 266473 0 0 3 0x14200 bored sosplice 66524 501983 97501 0 3 0x82 thrsleep syz-fuzzer 66524 518405 97501 0 2 0x4000482 syz-fuzzer 66524 505534 97501 0 3 0x4000082 thrsleep syz-fuzzer 66524 438527 97501 0 3 0x4000082 thrsleep syz-fuzzer 66524 35010 97501 0 3 0x4000082 kqread syz-fuzzer 66524 462483 97501 0 3 0x4000082 thrsleep syz-fuzzer 66524 17248 97501 0 3 0x4000082 thrsleep syz-fuzzer 97501 155035 50717 0 3 0x10008a pause ksh 50717 157402 55492 0 3 0x92 select sshd 55492 296103 1 0 3 0x80 select sshd 1049 412816 80159 73 2 0x100010 syslogd 80159 357143 1 0 3 0x100082 netio syslogd 65646 513727 1 77 3 0x100090 poll dhclient 52499 414996 1 0 3 0x80 poll dhclient 7458 347825 0 0 2 0x14200 zerothread 94725 47373 0 0 3 0x14200 aiodoned aiodoned 24676 461173 0 0 3 0x14200 syncer update 94577 281325 0 0 3 0x14200 cleaner cleaner 60633 299922 0 0 3 0x14200 reaper reaper 78300 217789 0 0 3 0x14200 pgdaemon pagedaemon 27405 239609 0 0 3 0x14200 bored crynlk 22467 143573 0 0 3 0x14200 bored crypto 61987 159379 0 0 3 0x40014200 acpi0 acpi0 69140 323673 0 0 3 0x14200 bored softnet 42709 246917 0 0 3 0x14200 bored systqmp 26331 5862 0 0 3 0x14200 bored systq 59103 77997 0 0 3 0x40014200 bored softclock 5450 380894 0 0 3 0x40014200 idle0 5290 330265 0 0 3 0x14200 bored smr 1 484385 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 9578 6744K 7225K 78643K 18485 0 0 pcb 13 13K 15K 78643K 555 0 0 rtable 120 12K 12K 78643K 2237 0 0 ifaddr 79 19K 20K 78643K 661 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 263 0 0 iov 0 0K 32K 78643K 662 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1213 76K 77K 78643K 4145 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 54 0 0 VM map 28 7K 7K 78643K 43 0 0 sem 12 0K 1K 78643K 459 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 2869 0 0 sigio 0 0K 0K 78643K 26 0 0 proc 50 38K 55K 78643K 1536 0 0 subproc 32 2K 2K 78643K 425 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 1K 78643K 2185 0 0 in_multi 34 2K 2K 78643K 726 0 0 ether_multi 1 0K 0K 78643K 20 0 0 mrt 0 0K 0K 78643K 15 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 90 397K 397K 78643K 90 0 0 exec 0 0K 1K 78643K 767 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 147 258K 258K 78643K 8167 0 0 UVM aobj 111 3K 3K 78643K 166 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 528 0 0 NDP 20 0K 1K 78643K 209 0 0 temp 212 3540K 3620K 78643K 102797 0 0 kqueue 0 0K 0K 78643K 40 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 77 0 71 1 0 1 1 0 8 0 rtpcb 80 279 0 277 1 0 1 1 0 8 0 rtentry 112 373 0 329 2 0 2 2 0 8 0 unpcb 120 1223 0 1212 2 1 1 2 0 8 0 syncache 264 13 0 13 6 6 0 1 0 8 0 tcpqe 32 3710 0 3710 3 3 0 1 0 8 0 tcpcb 544 2084 0 2080 16 15 1 15 0 8 0 ipq 40 23 0 23 9 8 1 1 0 8 1 ipqe 40 231 0 231 9 8 1 1 0 8 1 inpcb 280 7028 0 7021 30 28 2 13 0 8 1 rttmr 72 4 0 4 2 2 0 1 0 8 0 nd6 48 53 0 49 2 1 1 1 0 8 0 pkpcb 40 9 0 9 4 4 0 1 0 8 0 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 77 0 77 14 13 1 1 0 8 1 art_heap8 4096 10 0 9 5 4 1 3 0 8 0 art_heap4 256 1638 0 1423 38 24 14 16 0 8 0 art_table 32 1648 0 1432 3 1 2 3 0 8 0 art_node 16 371 0 331 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 19 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 453 0 443 1 0 1 1 0 8 0 shmpl 112 164 0 55 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5718 0 4312 46 0 46 46 0 8 0 ffsino 240 5718 0 4312 83 0 83 83 0 8 0 nchpl 144 9869 0 8253 61 0 61 61 0 8 0 uvmvnodes 72 7795 0 0 142 0 142 142 0 8 0 vnodes 208 7795 0 0 411 0 411 411 0 8 0 namei 1024 33133 0 33132 6 5 1 1 0 8 0 vcpupl 1984 25 0 0 4 0 4 4 0 8 0 vmpool 520 41 0 15 2 0 2 2 0 8 0 scsiplug 64 3 0 3 2 2 0 1 0 8 0 scxspl 192 41214 0 41214 19 18 1 7 0 8 1 plimitpl 152 256 0 249 1 0 1 1 0 8 0 sigapl 432 2975 0 2961 2 0 2 2 0 8 0 futexpl 56 75902 0 75902 4 3 1 1 0 8 1 knotepl 112 1172 0 1153 5 2 3 3 0 8 2 kqueuepl 104 864 0 862 4 3 1 4 0 8 0 pipepl 112 2694 0 2675 13 12 1 2 0 8 0 fdescpl 424 2976 0 2961 2 0 2 2 0 8 0 filepl 120 25811 0 25709 24 19 5 11 0 8 1 lockfpl 104 1146 0 1145 1 0 1 1 0 8 0 lockfspl 48 367 0 366 1 0 1 1 0 8 0 sessionpl 112 44 0 33 1 0 1 1 0 8 0 pgrppl 48 72 0 61 1 0 1 1 0 8 0 ucredpl 96 2596 0 2589 1 0 1 1 0 8 0 zombiepl 144 2963 0 2962 4 3 1 1 0 8 0 processpl 864 2992 0 2962 4 0 4 4 0 8 0 procpl 632 6338 0 6301 5 1 4 5 0 8 0 sosppl 128 36 0 36 9 9 0 1 serialport: VM disconnected.