uvm_fault(0xffffffff82542bb0, 0xffff800000b32000, 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(0xffffffff82542bb0, 0xffff800000b32000, 0, 1) -> e uvm_unmap_remove(ffff800000b31f00,0,80000000,ffff8000148fbcf8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b31f00,0,80000000,ffff8000148fbcf8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff8000148fbd30, count: 0 ddb> trace uvm_unmap_remove(ffff800000b31f00,0,80000000,ffff8000148fbcf8,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000b31f00,0,80000000,ffff8000148fbcf8,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_map_deallocate(ffff800000b31f00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233 vm_impl_init_vmx(ffff800017949868,ffff800017947650) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000b22800,ffff800017947650) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1376 [inline] vm_create(ffff800000b22800,ffff800017947650) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd803658d000,c5005601,ffff800000b22800,1,fffffd803f7c6ba0,ffff800017947650) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd803ad8ed30,c5005601,ffff800000b22800,ffff800017947650) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff800017947650,ffff8000148fc0d8,ffff8000148fc120) at sys_ioctl+0x5b9 syscall(ffff8000148fc1a0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,75d542e9010) at Xsyscall+0x128 end of kernel end trace frame: 0x75f73594000, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff8000148fbce0 rbx 0 rdx 0x1710 __ALIGN_SIZE+0x710 rcx 0xffff800015b21000 rax 0xffff800000b31f00 r8 0x1 r9 0 r10 0xa63ad5106ec3dfd4 r11 0x9211da493ef10210 r12 0 r13 0xfffffd80308ec400 r14 0 r15 0xffff800000b31f00 rip 0xffffffff813897cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000148fbc30 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=185740 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800017947b40,0xffff800017946ef8 process=0xffff8000ffff70f0 user=0xffff8000148f7000, vmspace=0xfffffd803f013aa0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 16335 342569 37513 0 2 0 syz-executor.1 16335 371564 37513 0 3 0x4000080 ttyout syz-executor.1 16335 209597 37513 0 3 0x4000080 fsleep syz-executor.1 73165 280993 35550 0 2 0 syz-executor.0 *73165 185740 35550 0 7 0x4000000 syz-executor.0 35550 61433 39351 0 2 0x482 syz-executor.0 24045 180054 0 0 3 0x14200 bored sosplice 37513 269801 39351 0 2 0x482 syz-executor.1 39351 18836 28833 0 3 0x82 thrsleep syz-fuzzer 39351 416741 28833 0 3 0x4000082 thrsleep syz-fuzzer 39351 22911 28833 0 3 0x4000082 kqread syz-fuzzer 39351 351095 28833 0 3 0x4000082 thrsleep syz-fuzzer 39351 59713 28833 0 3 0x4000082 thrsleep syz-fuzzer 39351 487663 28833 0 3 0x4000082 thrsleep syz-fuzzer 39351 502826 28833 0 3 0x4000082 thrsleep syz-fuzzer 28833 152037 42843 0 3 0x10008a pause ksh 42843 32015 73693 0 3 0x92 select sshd 85637 319251 1 0 3 0x100083 ttyin getty 73693 69280 1 0 3 0x80 select sshd 66234 325116 57221 73 2 0x100010 syslogd 57221 36554 1 0 3 0x100082 netio syslogd 48763 366758 1 77 3 0x100090 poll dhclient 95634 78138 1 0 3 0x80 poll dhclient 83968 130436 0 0 2 0x14200 zerothread 79474 457906 0 0 3 0x14200 aiodoned aiodoned 19629 9106 0 0 3 0x14200 syncer update 77664 285975 0 0 3 0x14200 cleaner cleaner 42256 256056 0 0 3 0x14200 reaper reaper 70160 115395 0 0 3 0x14200 pgdaemon pagedaemon 94410 18783 0 0 3 0x14200 bored crynlk 10846 465917 0 0 3 0x14200 bored crypto 3401 90893 0 0 3 0x40014200 acpi0 acpi0 91321 496764 0 0 3 0x14200 bored softnet 9258 432407 0 0 3 0x14200 bored systqmp 81907 452805 0 0 3 0x14200 bored systq 82806 57056 0 0 3 0x40014200 bored softclock 79687 476037 0 0 3 0x40014200 idle0 54299 278341 0 0 3 0x14200 bored smr 1 401740 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 9498 6328K 6839K 78643K 12223 0 0 pcb 13 8K 8K 78643K 94 0 0 rtable 91 5K 5K 78643K 382 0 0 ifaddr 49 11K 12K 78643K 99 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 36 0 0 iov 0 0K 16K 78643K 30 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1216 76K 77K 78643K 1788 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 5 0 0 VM map 3 0K 0K 78643K 7 0 0 sem 12 0K 1K 78643K 71 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 503 0 0 sigio 0 0K 0K 78643K 18 0 0 proc 49 38K 55K 78643K 481 0 0 subproc 32 2K 2K 78643K 68 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 52 0 0 in_multi 23 1K 2K 78643K 73 0 0 ether_multi 1 0K 0K 78643K 4 0 0 mrt 0 0K 0K 78643K 5 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 138 609K 609K 78643K 138 0 0 exec 0 0K 1K 78643K 237 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 100 21K 21K 78643K 2075 0 0 UVM aobj 21 2K 2K 78643K 21 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 38 0 0 NDP 10 0K 0K 78643K 30 0 0 temp 140 3527K 3605K 78643K 9141 0 0 kqueue 0 0K 0K 78643K 8 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 10 0 6 1 0 1 1 0 8 0 rtpcb 80 81 0 79 1 0 1 1 0 8 0 rtentry 112 66 0 32 2 0 2 2 0 8 0 unpcb 120 538 0 530 2 1 1 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 230 0 230 2 2 0 1 0 8 0 tcpcb 544 106 0 102 1 0 1 1 0 8 0 inpcb 280 1223 0 1216 8 5 3 4 0 8 2 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 8 0 6 1 0 1 1 0 8 0 ppxss 1128 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 301 0 128 14 1 13 14 0 8 2 art_table 32 302 0 128 2 0 2 2 0 8 0 art_node 16 65 0 34 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 25 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 69 0 59 1 0 1 1 0 8 0 shmpl 112 19 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2083 0 691 46 0 46 46 0 8 0 ffsino 240 2083 0 691 83 0 83 83 0 8 0 nchpl 144 2997 0 1394 60 0 60 60 0 8 0 uvmvnodes 72 2596 0 0 48 0 48 48 0 8 0 vnodes 208 2596 0 0 137 0 137 137 0 8 0 namei 1024 8982 0 8982 2 1 1 1 0 8 1 vmpool 520 5 0 4 2 1 1 1 0 8 0 scxspl 192 8258 0 8258 8 7 1 7 0 8 1 plimitpl 152 47 0 39 1 0 1 1 0 8 0 sigapl 432 668 0 654 2 0 2 2 0 8 0 futexpl 56 11763 0 11762 1 0 1 1 0 8 0 knotepl 112 236 0 217 3 2 1 2 0 8 0 kqueuepl 104 140 0 138 1 0 1 1 0 8 0 pipepl 112 464 0 445 3 1 2 2 0 8 1 fdescpl 424 669 0 654 2 0 2 2 0 8 0 filepl 120 5787 0 5686 8 4 4 7 0 8 0 lockfpl 104 272 0 271 1 0 1 1 0 8 0 lockfspl 48 81 0 80 1 0 1 1 0 8 0 sessionpl 112 19 0 9 1 0 1 1 0 8 0 pgrppl 48 21 0 11 1 0 1 1 0 8 0 ucredpl 96 691 0 684 1 0 1 1 0 8 0 zombiepl 144 654 0 654 2 1 1 1 0 8 1 processpl 864 684 0 654 4 0 4 4 0 8 0 procpl 632 1313 0 1274 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 384 1854 0 1837 13 9 4 7 0 8 2 mcl64k 65536 9 0 9 6 6 0 1 0 8 0 mcl16k 16384 8 0 8 7 7 0 1 0 8 0 mcl12k 12288 13 0 13 9 8 1 1 0 8 1 mcl9k 9216 4 0 4 4 4 0 1 0 8 0 mcl8k 8192 41 0 41 3 2 1 1 0 8 1 mcl4k 4096 48 0 48 7 6 1 1 0 8 1 mcl2k2 2112 3 0 3 2 2 0 1 0 8 0 mcl2k 2048 63460 0 63415 17 11 6 12 0 8 0 mtagpl 80 14 0 14 3 2 1 1 0 8 1 mbufpl 256 105082 0 104986 12 4 8 10 0 8 0 bufpl 256 7004 0 2162 303 0 303 303 0 8 0 anonpl 16 79022 0 68000 98 39 59 72 0 62 1 amapchunkpl 152 3040 0 2931 10 4 6 7 0 158 1 amappl16 192 3825 0 3029 75 33 42 52 0 8 2 amappl15 184 8 0 7 1 0 1 1 0 8 0 amappl14 176 36 0 35 2 1 1 1 0 8 0 amappl13 168 8 0 8 1 0 1 1 0 8 1 amappl12 160 3 0 0 1 0 1 1 0 8 0 amappl11 152 49 0 38 1 0 1 1 0 8 0 amappl10 144 13 0 11 2 1 1 1 0 8 0 amappl9 136 466 0 460 1 0 1 1 0 8 0 amappl8 128 376 0 352 1 0 1 1 0 8 0 amappl7 120 53 0 45 1 0 1 1 0 8 0 amappl6 112 85 0 75 1 0 1 1 0 8 0 amappl5 104 859 0 848 1 0 1 1 0 8 0 amappl4 96 887 0 857 1 0 1 1 0 8 0 amappl3 88 133 0 126 1 0 1 1 0 8 0 amappl2 80 4461 0 4385 4 2 2 3 0 8 0 amappl1 72 22007 0 21584 27 18 9 20 0 8 0 amappl 80 1559 0 1521 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 20 0 0 1 0 1 1 0 8 0 uaddrrnd 24 674 0 654 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 674 0 654 1 0 1 1 0 8 0 vmmpekpl 168 8641 0 8616 2 0 2 2 0 8 0 vmmpepl 168 86581 0 84640 164 55 109 109 0 357 24 vmsppl 272 668 0 654 2 1 1 2 0 8 0 pdppl 4096 1354 0 1316 6 1 5 6 0 8 0 pvpl 32 249448 0 235329 220 74 146 175 0 265 6 pmappl 200 673 0 658 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 469 0 42 13 0 13 13 0 8 0